Materiały źródłowe

• #1 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, rare, transmissible, and universally fatal neurodegenerative condition caused by prion proteins. […] CJD neuronal inclusions damage brain neurons, manifesting with nonspecific prodromal symptoms early in the disease course and neurologic changes, particularly myoclonus, in the advanced stages. […] In the early stages of sporadic CJD, patients may develop nonspecific symptoms like vertigo, headache, fatigue, and sleep disorders. However, memory problems, agitation, irritability, depression, apathy, mood swings, and sensory changes like vision loss can also occur. As the disease advances, patients may develop rapidly worsening confusion, disorientation, and cognitive problems. Most patients manifest with coordination and movement abnormalities, including ataxia, involuntary jerky movements, myoclonus, muscle stiffness, and involuntary muscle twitching. Myoclonus persists during sleep and may be elicited by loud sounds or bright lights.

• #2 Creutzfeldt-Jakob Disease: Symptoms, Causes, and CJD in Australia

  https://brainfoundation.org.au/disorders/creutzfeldt-jakob-disease/

  CJD: The accumulation of misfolded prion protein causes neuronal dysfunction and the hallmark vacuolation (sponge-like or spongiform) changes in the brain (gray matter). Patients typically present with rapidly progressive dementia and gross motor impairment (such as unsteady gait), culminating in death on average within 4-6 months. Symptoms characteristically include cognitive decline, behavioural changes, impaired balance, lack of coordination, muscle jerking (myoclonus), weakness and spasticity. Patients are usually 50-70 years old but illness onset can be in adolescence or as late as the ninth decade. […] Variant CJD (vCJD) typically manifests a longer duration of illness (median ~14 months) and presents with psychiatric and sensory symptoms; it usually affects a much younger age group (median age at death 28 years). […] CJD is always fatal and is unfortunately distinctive because of its typically rapid clinical progression. The duration of illness can vary but approximately 80% of patients die within a year of symptom onset with a small number of patients surviving for more than two years.

• #3 Types of Prion Disease – CJD Foundation

  https://cjdfoundation.org/types-of-prion-disease/

  CJD reportedly affects around 1 to 1.4 people per million per population per year. In the United States, this translates to approximately 500 new cases per year. […] Common symptoms include ataxia and dementia. Short course. Upon tissue examination there is spongiform change, but plaques are rarely present. […] Age at onset depends on the age at exposure and on the incubation time. Clinical and pathological features are often indistinguishable from sCJD. Growth hormone cases show plaques. […] Psychiatric symptoms are often seen at disease presentation. Distinctive daisy plaques upon tissue examination.

• #4 A Systematic Review of Sporadic Creutzfeldt-Jakob Disease: Pathogenesis, Diagnosis, and Therapeutic Attempts

  https://www.mdpi.com/2035-8377/16/5/79

  Creutzfeldt-Jakob disease is a rare neurodegenerative and invariably fatal disease with a fulminant course once the first clinical symptoms emerge. […] The diagnosis of sporadic CJD is challenging, because patients present with a wide range of non-specific symptoms and signs, but the disease is known as rapidly progressing dementia-associating visual and cerebellar signs, myoclonus, the patients develop rapidly akinetic mutism, and the mean survival is about 6 months. […] The prodromal phase is usually overlooked, because patients exhibit behavioral changes, unspecified fear, eating abnormalities and weight loss, depressive mood changes, or may complain of sleeping disturbances. […] Patients seek medical advice usually when cognitive functions start to decline, in the early stage of CJD. Cognitive impairment usually affects all domains.

• #5

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  The pattern of symptoms can vary depending on the type of Creutzfeldt-Jakob disease (CJD). […] In sporadic CJD, the symptoms mainly affect the workings of the nervous system (neurological symptoms) and these symptoms rapidly worsen in the space of a few months. […] In variant CJD, symptoms that affect a person’s behaviour and emotions (psychological symptoms) will usually develop first. […] These are then followed by neurological symptoms around 4 months later, which get worse over the following few months. […] Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress usually around 2 years, rather than a few months. […] Initial neurological symptoms of sporadic CJD can include: difficulty walking caused by problems with balance and co-ordination, slurred speech, numbness or pins and needles in different parts of the body, dizziness, vision problems, such as double vision, hallucinations (seeing or hearing things that aren’t really there).

• #6 Creutzfeldt-Jakob Disease | CJD | MedlinePlus

  https://medlineplus.gov/creutzfeldtjakobdisease.html

  Creutzfeldt-Jakob disease (CJD) is a rare, degenerative brain disorder. Symptoms usually start around age 60. Memory problems, behavior changes, vision problems, and poor muscle coordination progress quickly to dementia, coma, and death. Most patients die within a year. […] The three main categories of CJD are: Sporadic CJD, which occurs for no known reason; Hereditary CJD, which runs in families; Acquired CJD, which occurs from contact with infected tissue, usually during a medical procedure.

• #7 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, rare, transmissible, and universally fatal neurodegenerative condition caused by prion proteins. […] CJD neuronal inclusions damage brain neurons, manifesting with nonspecific prodromal symptoms early in the disease course and neurologic changes, particularly myoclonus, in the advanced stages. […] In the early stages of sporadic CJD, patients may develop nonspecific symptoms like vertigo, headache, fatigue, and sleep disorders. However, memory problems, agitation, irritability, depression, apathy, mood swings, and sensory changes like vision loss can also occur. As the disease advances, patients may develop rapidly worsening confusion, disorientation, and cognitive problems. Most patients manifest with coordination and movement abnormalities, including ataxia, involuntary jerky movements, myoclonus, muscle stiffness, and involuntary muscle twitching. Myoclonus persists during sleep and may be elicited by loud sounds or bright lights.

• #8 Prion Diseases | Memory and Aging Center

  https://memory.ucsf.edu/dementia/rapidly-progressive-dementias/prion-diseases

  Sporadic Creutzfeldt-Jakob Disease (sCJD) The cause of classic or sporadic CJD is unknown, which means it occurs in people without any known risk factors or gene mutations. Typical symptoms include imbalance and incoordination, memory loss and impaired thinking, and psychiatric symptoms such as anxiety or depression. Once the symptoms do appear, CJD progresses very quickly and is usually fatal within a few months of symptom onset. sCJD typically affects people in their 60s and is rarely seen in people younger than 40 years old. Sporadic CJD is the most common form. […] The symptoms depend on the type of mutation, but they often look like classic CJD: balance and coordination problems, memory loss and impaired thinking. Typically these symptoms appear earlier in fCJD than in sCJD. The duration of the illness is usually longer than in the sporadic form.

• #9

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  The pattern of symptoms can vary depending on the type of Creutzfeldt-Jakob disease (CJD). […] In sporadic CJD, the symptoms mainly affect the workings of the nervous system (neurological symptoms) and these symptoms rapidly worsen in the space of a few months. […] In variant CJD, symptoms that affect a person’s behaviour and emotions (psychological symptoms) will usually develop first. […] These are then followed by neurological symptoms around 4 months later, which get worse over the following few months. […] Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress usually around 2 years, rather than a few months. […] Initial neurological symptoms of sporadic CJD can include: difficulty walking caused by problems with balance and co-ordination, slurred speech, numbness or pins and needles in different parts of the body, dizziness, vision problems, such as double vision, hallucinations (seeing or hearing things that aren’t really there).

• #10 Prion Diseases | Memory and Aging Center

  https://memory.ucsf.edu/dementia/rapidly-progressive-dementias/prion-diseases

  Sporadic Creutzfeldt-Jakob Disease (sCJD) The cause of classic or sporadic CJD is unknown, which means it occurs in people without any known risk factors or gene mutations. Typical symptoms include imbalance and incoordination, memory loss and impaired thinking, and psychiatric symptoms such as anxiety or depression. Once the symptoms do appear, CJD progresses very quickly and is usually fatal within a few months of symptom onset. sCJD typically affects people in their 60s and is rarely seen in people younger than 40 years old. Sporadic CJD is the most common form. […] The symptoms depend on the type of mutation, but they often look like classic CJD: balance and coordination problems, memory loss and impaired thinking. Typically these symptoms appear earlier in fCJD than in sCJD. The duration of the illness is usually longer than in the sporadic form.

• #11 Variant Creutzfeldt–Jakob disease – Wikipedia

  https://en.wikipedia.org/wiki/Variant_Creutzfeldt%E2%80%93Jakob_disease

  Initial symptoms include psychiatric problems, behavioral changes, and painful sensations. […] In the later stages of the illness, patients may exhibit poor coordination, dementia and involuntary movements. […] The length of time between exposure and the development of symptoms is unclear, but is believed to be years. […] Average life expectancy following the onset of symptoms is 13 months.

• #12 About Variant Creutzfeldt-Jakob Disease (vCJD) | vCJD | CDC

  https://www.cdc.gov/variant-creutzfeldt-jakob/about/index.html

  It is always fatal, usually within 14 months of the first symptoms. […] But, once symptoms begin, it is always fatal. Most people with vCJD live with the illness for one to two years, with an average time of 13-14 months. […] Later in the illness, patients typically have dementia and neurologic signs such as poor coordination. […] There is unfortunately no cure for vCJD. No specific therapy slows or stops the disease’s progression once symptoms begin. […] Treatment involves providing supportive care to help make the person more comfortable as their illness progresses.

• #13 Creutzfeldt-Jakob Disease | CJD | MedlinePlus

  https://medlineplus.gov/creutzfeldtjakobdisease.html

  Creutzfeldt-Jakob disease (CJD) is a rare, degenerative brain disorder. Symptoms usually start around age 60. Memory problems, behavior changes, vision problems, and poor muscle coordination progress quickly to dementia, coma, and death. Most patients die within a year. […] The three main categories of CJD are: Sporadic CJD, which occurs for no known reason; Hereditary CJD, which runs in families; Acquired CJD, which occurs from contact with infected tissue, usually during a medical procedure.

• #14 Creutzfeldt-Jakob Disease | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/creutzfeldt-jakob-disease

  Creutzfeldt-Jakob disease (CJD) is a rare, rapidly progressing brain disorder. […] Like other prion diseases, CJD causes problems with muscle coordination, thinking, and memory. […] This disease tends to progress rapidly. About 70% of people with CJD die within one year of getting the disease. […] The main symptoms of CJD are cognitive decline leading to dementia, involuntary muscle jerks (myoclonus), and lack of coordination of movements. […] Early symptoms of the disease may include poor coordination, walking and balance problems, confusion, disorientation, and delusions, problems with thinking, memory, and judgment, behavior changes, such as depression, mood swings, and anxiety, speech difficulty, insomnia or changes in sleeping patterns, vision changes, hallucinations or distorted perception of the world, dizziness, and tremor. […] As CJD progresses, other symptoms can appear, including weakness of the arms and legs, blindness, inability to move or speak, problems swallowing, and coma. […] But these symptoms tend to worsen faster in CJD than in Alzheimer’s disease and most other types of dementia.

• #15

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  The pattern of symptoms can vary depending on the type of Creutzfeldt-Jakob disease (CJD). […] In sporadic CJD, the symptoms mainly affect the workings of the nervous system (neurological symptoms) and these symptoms rapidly worsen in the space of a few months. […] In variant CJD, symptoms that affect a person’s behaviour and emotions (psychological symptoms) will usually develop first. […] These are then followed by neurological symptoms around 4 months later, which get worse over the following few months. […] Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress usually around 2 years, rather than a few months. […] Initial neurological symptoms of sporadic CJD can include: difficulty walking caused by problems with balance and co-ordination, slurred speech, numbness or pins and needles in different parts of the body, dizziness, vision problems, such as double vision, hallucinations (seeing or hearing things that aren’t really there).

• #16 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, rare, transmissible, and universally fatal neurodegenerative condition caused by prion proteins. […] CJD neuronal inclusions damage brain neurons, manifesting with nonspecific prodromal symptoms early in the disease course and neurologic changes, particularly myoclonus, in the advanced stages. […] In the early stages of sporadic CJD, patients may develop nonspecific symptoms like vertigo, headache, fatigue, and sleep disorders. However, memory problems, agitation, irritability, depression, apathy, mood swings, and sensory changes like vision loss can also occur. As the disease advances, patients may develop rapidly worsening confusion, disorientation, and cognitive problems. Most patients manifest with coordination and movement abnormalities, including ataxia, involuntary jerky movements, myoclonus, muscle stiffness, and involuntary muscle twitching. Myoclonus persists during sleep and may be elicited by loud sounds or bright lights.

• #17 Sporadic prion disease | National Prion Clinic – UCL – University College London

  https://www.ucl.ac.uk/national-prion-clinic/sporadic-prion-disease

  The disease usually affects people between the ages of 45-75, the average age of onset being around 65. The duration of the illness varies, for most people it is less than a year and may be as short as 6 weeks. For a minority, the illness duration can be up to 3 years. […] Symptoms of the disease can vary though classically sporadic prion disease is recognised as a rapidly progressive dementia affecting many aspects of functioning. Typically there is an insidious onset followed by a very rapid decline. […] Early non-specific symptoms may include dizziness, headaches, fatigue, sleep disturbance and weight loss. Behavioural symptoms such as mood swings and loss of interest may also be seen. Because of these initial symptoms the person may at first be thought to be suffering from depression or other psychiatric disease.

• #18 Possible Early Symptom of Creutzfeldt-Jakob Disease Identified | MedPage Today

  https://www.medpagetoday.com/neurology/generalneurology/113641

  People who died with sporadic Creutzfeldt-Jakob disease were more likely to have been prescribed antidepressants before neurologic symptoms started, a retrospective study in Austria showed. […] Compared with controls in the general population, patients with sporadic Creutzfeldt-Jakob disease had higher odds of being prescribed selective serotonin reuptake inhibitors (SSRIs) in the year preceding disease onset. […] The higher prescription rates of SSRIs could be observed as early as 3 years before symptom onset. […] „Mood alterations may be a common prodromal feature of sporadic Creutzfeldt-Jakob disease,” they added. […] „The initial presentation typically includes dementia and neurological symptoms such as ataxia, myoclonus, and gait abnormalities as well as behavioral changes,” Cetin and co-authors wrote. Sporadic Creutzfeldt-Jakob disease progresses quickly, and patients have an average survival time of 6 to 8 months from symptom onset. […] Patients had a median survival time of 3.6 months.

• #19 Creutzfeldt-Jakob disease: Mood alterations identified as a possible early symptom

  https://www.meduniwien.ac.at/web/en/ueber-uns/news/2025/news-in-january-2025/creutzfeldt-jakob-disease-mood-alterations-identified-as-a-possible-early-symptom/

  Creutzfeldt-Jakob disease (CJD) is a very rare neurodegenerative disease that is fatal within a few months and still poses many questions to scientists. […] A suspected diagnosis can usually be made on the basis of a particular combination of symptoms and examination findings, but can only be confirmed after the death of the affected person. […] The analysis showed that CJD patients were prescribed antidepressants of the selective serotonin reuptake inhibitor (SSRI) class significantly more often than people without CJD. […] Specifically, it was found that CJD patients were almost three times more likely to be prescribed SSRIs in the year before the onset of the disease than the control group. […] It is remarkable that we see an increasing trend towards higher prescription SSRI rates in patients with CJD as early as three years before the onset of the disease.

• #20

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  Initial psychological symptoms of variant CJD can include: severe depression, withdrawal from family, friends and the world around you, anxiety, irritability, difficulty sleeping (insomnia). […] Advanced neurological symptoms of all forms of CJD can include: loss of physical co-ordination, which can affect a wide range of functions, such as walking, speaking and balance (ataxia), muscle twitches and spasms, loss of bladder control (urinary incontinence) and bowel control (bowel incontinence), blindness, swallowing difficulties (dysphagia), loss of speech, loss of voluntary movement. […] Advanced psychological symptoms of all forms of CJD include: loss of memory, which is often severe, problems concentrating, confusion, feeling agitated, aggressive behaviour, loss of appetite, which can lead to weight loss, paranoia, unusual and inappropriate emotional responses.

• #21 Prion Diseases | Memory and Aging Center

  https://memory.ucsf.edu/dementia/rapidly-progressive-dementias/prion-diseases

  The age at onset depends on the age at exposure and incubation time. […] In the early stages, patients often present with personality changes and psychiatric symptoms such as depression or withdrawal. Psychiatric symptoms are often the most prominent feature early in vCJD, but dementia develops later. The motor symptoms of vCJD (stumbling, falls and difficulty walking) also tend to appear earlier in vCJD than in classic CJD. The estimated incubation period is 5 to 40 years, and the duration of illness is typically 12-14 months after signs and symptoms appear. vCJD affects people in their 20s, much earlier in age than people with sporadic CJD.

• #22

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  The pattern of symptoms can vary depending on the type of Creutzfeldt-Jakob disease (CJD). […] In sporadic CJD, the symptoms mainly affect the workings of the nervous system (neurological symptoms) and these symptoms rapidly worsen in the space of a few months. […] In variant CJD, symptoms that affect a person’s behaviour and emotions (psychological symptoms) will usually develop first. […] These are then followed by neurological symptoms around 4 months later, which get worse over the following few months. […] Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress usually around 2 years, rather than a few months. […] Initial neurological symptoms of sporadic CJD can include: difficulty walking caused by problems with balance and co-ordination, slurred speech, numbness or pins and needles in different parts of the body, dizziness, vision problems, such as double vision, hallucinations (seeing or hearing things that aren’t really there).

• #23 Creutzfeldt-Jakob Disease: Symptoms, Causes, and CJD in Australia

  https://brainfoundation.org.au/disorders/creutzfeldt-jakob-disease/

  CJD: The accumulation of misfolded prion protein causes neuronal dysfunction and the hallmark vacuolation (sponge-like or spongiform) changes in the brain (gray matter). Patients typically present with rapidly progressive dementia and gross motor impairment (such as unsteady gait), culminating in death on average within 4-6 months. Symptoms characteristically include cognitive decline, behavioural changes, impaired balance, lack of coordination, muscle jerking (myoclonus), weakness and spasticity. Patients are usually 50-70 years old but illness onset can be in adolescence or as late as the ninth decade. […] Variant CJD (vCJD) typically manifests a longer duration of illness (median ~14 months) and presents with psychiatric and sensory symptoms; it usually affects a much younger age group (median age at death 28 years). […] CJD is always fatal and is unfortunately distinctive because of its typically rapid clinical progression. The duration of illness can vary but approximately 80% of patients die within a year of symptom onset with a small number of patients surviving for more than two years.

• #24

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  The pattern of symptoms can vary depending on the type of Creutzfeldt-Jakob disease (CJD). […] In sporadic CJD, the symptoms mainly affect the workings of the nervous system (neurological symptoms) and these symptoms rapidly worsen in the space of a few months. […] In variant CJD, symptoms that affect a person’s behaviour and emotions (psychological symptoms) will usually develop first. […] These are then followed by neurological symptoms around 4 months later, which get worse over the following few months. […] Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress usually around 2 years, rather than a few months. […] Initial neurological symptoms of sporadic CJD can include: difficulty walking caused by problems with balance and co-ordination, slurred speech, numbness or pins and needles in different parts of the body, dizziness, vision problems, such as double vision, hallucinations (seeing or hearing things that aren’t really there).

• #25

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/

  Creutzfeldt-Jakob disease (CJD) is a rare and fatal condition that affects the brain. It causes brain damage that worsens rapidly over time. […] Symptoms of CJD include: loss of intellect and memory, changes in personality, loss of balance and co-ordination, slurred speech, vision problems and blindness, abnormal jerking movements, progressive loss of brain function and mobility. […] Most people with CJD will die within a year of the symptoms starting, usually from infection. […] This is because the immobility caused by CJD can make people with the condition vulnerable to infection. […] The symptoms of familial CJD usually first develop in people when they’re in their early 50s.

• #26 Background Information – CEIP

  https://ceip.us/projects/cjd/background-information/

  There are broad similarities between all forms of CJD involving neurological and psychiatric problems that get progressively worse. Typically patients have problems with dementia that rapidly worsens as well as difficulties with walking and movement. […] Sporadic CJD is characterized by spontaneous onset of rapidly progressive dementia, sudden, involuntary jerking of a muscle or group of muscles (myoclonus), visual disturbance, tremors, rigidity, balance and difficulties with coordination, spasticity, inability to speak (akinetic mutism). The disease course is rapid and death typically occurs within 6 months after disease onset. Age at onset in sCJD cases is usually greater than 60 years of age. […] Familial CJD In general, the symptoms of the familial form of CJD are similar to those of sporadic CJD. Often familial CJD is diagnosed at an earlier age (around 50 years of age), has a later onset of dementia and a longer course of illness (6 to 36 months) than is typical for sCJD.

• #27

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  Initial psychological symptoms of variant CJD can include: severe depression, withdrawal from family, friends and the world around you, anxiety, irritability, difficulty sleeping (insomnia). […] Advanced neurological symptoms of all forms of CJD can include: loss of physical co-ordination, which can affect a wide range of functions, such as walking, speaking and balance (ataxia), muscle twitches and spasms, loss of bladder control (urinary incontinence) and bowel control (bowel incontinence), blindness, swallowing difficulties (dysphagia), loss of speech, loss of voluntary movement. […] Advanced psychological symptoms of all forms of CJD include: loss of memory, which is often severe, problems concentrating, confusion, feeling agitated, aggressive behaviour, loss of appetite, which can lead to weight loss, paranoia, unusual and inappropriate emotional responses.

• #28

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  Initial psychological symptoms of variant CJD can include: severe depression, withdrawal from family, friends and the world around you, anxiety, irritability, difficulty sleeping (insomnia). […] Advanced neurological symptoms of all forms of CJD can include: loss of physical co-ordination, which can affect a wide range of functions, such as walking, speaking and balance (ataxia), muscle twitches and spasms, loss of bladder control (urinary incontinence) and bowel control (bowel incontinence), blindness, swallowing difficulties (dysphagia), loss of speech, loss of voluntary movement. […] Advanced psychological symptoms of all forms of CJD include: loss of memory, which is often severe, problems concentrating, confusion, feeling agitated, aggressive behaviour, loss of appetite, which can lead to weight loss, paranoia, unusual and inappropriate emotional responses.

• #29 Creutzfeldt-Jakob Disease (CJD): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/6001-creutzfeldt-jakob-disease

  Creutzfeldt-Jakob disease (CJD) is a rare disease that causes fast deterioration of an affected persons brain. […] As this condition worsens and damages your brain, it causes dementia-like symptoms. […] The condition is very severe, and its effects develop and worsen quickly. […] Its ultimately fatal, and unfortunately, theres no way to cure, treat or even slow down the progress of this disease. […] Overall, people with CJD develop a wide range of symptoms, including memory loss, problems thinking, uncontrolled muscle spasms or movement difficulties, and more. […] The most common symptoms, listed in order from early to late stages of the disease, include: Forgetfulness and memory problems, Confusion and disorientation, Behavior and personality changes, Problems with your vision or processing and understanding what you see, Hallucinations or delusions, Problems with muscle coordination (ataxia), Balance problems, affecting stability while walking or standing, Uncontrolled muscle movements and spasms (dystonia), Seizures, Paralysis, Wasting (when you lose muscle mass and weight rapidly, sometimes known as muscle atrophy).

• #30 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, rare, transmissible, and universally fatal neurodegenerative condition caused by prion proteins. […] CJD neuronal inclusions damage brain neurons, manifesting with nonspecific prodromal symptoms early in the disease course and neurologic changes, particularly myoclonus, in the advanced stages. […] In the early stages of sporadic CJD, patients may develop nonspecific symptoms like vertigo, headache, fatigue, and sleep disorders. However, memory problems, agitation, irritability, depression, apathy, mood swings, and sensory changes like vision loss can also occur. As the disease advances, patients may develop rapidly worsening confusion, disorientation, and cognitive problems. Most patients manifest with coordination and movement abnormalities, including ataxia, involuntary jerky movements, myoclonus, muscle stiffness, and involuntary muscle twitching. Myoclonus persists during sleep and may be elicited by loud sounds or bright lights.

• #31

  https://step2.medbullets.com/neurology/422758/creutzfeldt-jakob-disease

  A 55-year-old man is brought to the emergency department by his wife after falling down and having a generalized tonic-clonic seizure. Over the course of the past few months, she felt he has been having abnormal behavior. […] Symptoms/physical exam: rapidly progressive mental deterioration, poor concentration, memory, and executive function. […] myoclonus, provoked by startle (thus „startle myoclonus”). […] Typically death occurs within 1-2 years of symptom onset.

• #32

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  Initial psychological symptoms of variant CJD can include: severe depression, withdrawal from family, friends and the world around you, anxiety, irritability, difficulty sleeping (insomnia). […] Advanced neurological symptoms of all forms of CJD can include: loss of physical co-ordination, which can affect a wide range of functions, such as walking, speaking and balance (ataxia), muscle twitches and spasms, loss of bladder control (urinary incontinence) and bowel control (bowel incontinence), blindness, swallowing difficulties (dysphagia), loss of speech, loss of voluntary movement. […] Advanced psychological symptoms of all forms of CJD include: loss of memory, which is often severe, problems concentrating, confusion, feeling agitated, aggressive behaviour, loss of appetite, which can lead to weight loss, paranoia, unusual and inappropriate emotional responses.

• #33 Creutzfeldt-Jakob Disease (CJD): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/6001-creutzfeldt-jakob-disease

  Creutzfeldt-Jakob disease (CJD) is a rare disease that causes fast deterioration of an affected persons brain. […] As this condition worsens and damages your brain, it causes dementia-like symptoms. […] The condition is very severe, and its effects develop and worsen quickly. […] Its ultimately fatal, and unfortunately, theres no way to cure, treat or even slow down the progress of this disease. […] Overall, people with CJD develop a wide range of symptoms, including memory loss, problems thinking, uncontrolled muscle spasms or movement difficulties, and more. […] The most common symptoms, listed in order from early to late stages of the disease, include: Forgetfulness and memory problems, Confusion and disorientation, Behavior and personality changes, Problems with your vision or processing and understanding what you see, Hallucinations or delusions, Problems with muscle coordination (ataxia), Balance problems, affecting stability while walking or standing, Uncontrolled muscle movements and spasms (dystonia), Seizures, Paralysis, Wasting (when you lose muscle mass and weight rapidly, sometimes known as muscle atrophy).

• #34 Neuropsychiatric symptoms in sporadic Creutzfeldt-Jakob disease | Global Brain Health Institute

  https://www.gbhi.org/news-publications/neuropsychiatric-symptoms-sporadic-creutzfeldt-jakob-disease

  Although neuropsychiatric symptoms are not part of diagnostic criteria for sporadic Creutzfeldt-Jakob disease a few retrospective studies and our clinical experience have suggested they are prominent and often occur early. […] Of our sCJD cohort (n=92), 97% had at least one NPI neuropsychiatric symptom, and half had at least six of the 12 NPI symptom categories, by their first research visit. The most common behavioral symptoms, occurring in more than half of sCJD patients, were: Appetite/Eating Disorders (68%), Apathy/Indifference (66%), Night-time Behaviors (53%), Aberrant Motor Behavior (53%) and Anxiety (52%). […] sCJD had significantly worse FrequencyxSeverity scores than AD in three-quarters of NPI categories. Our data show that sCJD is a highly behavioral syndrome. Although no neuropsychiatric symptom is pathognomonic for sCJD, certain symptoms might help differentiate sCJD from some other neurodegenerative diseases.

• #35 Creutzfeldt-Jakob Disease (CJD): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/6001-creutzfeldt-jakob-disease

  Once symptoms start, it tends to worsen quickly, with different symptoms happening as the disease causes different areas of your brain to deteriorate. […] In the early stages of the disease, people have changes in behavior and more mild symptoms, such as trouble with focusing and memory. […] As the condition gets worse, people with CJD lose the ability to take care of themselves and have trouble controlling their muscle movements. […] In the last stage of CJD, people stop talking, communicating and moving, with death following soon after. […] Most cases of CJD are fatal within a few months to a year after diagnosis. […] Unfortunately, CJD has a very poor outlook because the condition isnt curable or treatable. […] It also worsens very quickly in most cases, causing death within weeks or months. […] About 70% of people with CJD dont survive more than a year.

• #36 Creutzfeldt-Jakob Disease: Symptoms & Stages | StudySmarter

  https://www.studysmarter.co.uk/explanations/biology/biological-molecules/creutzfeldt-jakob-disease/

  Creutzfeldt-Jakob Disease (CJD) is a rare, degenerative, and invariably fatal brain disorder that affects about one in every one million people worldwide. […] In patients with CJD, normal proteins in the brain known as prions take on an abnormal shape and accumulate, leading to neuronal death. This results in a variety of neurological symptoms such as rapidly progressive dementia, motor abnormalities, and characteristic changes on brain imaging. […] Recognising the symptoms of Creutzfeldt-Jakob Disease is essential for early diagnosis. This disease typically manifests in three stages: early, middle and severe or late stage. Each stage has unique characteristics as the condition progresses, and the symptoms become more pronounced. […] In the early stage of CJD, individuals often experience subtle cognitive and behavioural changes. These might include memory disturbances, behavioural changes, visual disturbances, and coordination problems.

• #37

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  As the condition progresses to its final stages, people with all forms of CJD will become totally bedridden. […] They often become totally unaware of their surroundings and require around-the-clock care. […] They also often lose the ability to speak and can’t communicate with their carers. […] Death will inevitably follow, usually either as a result of an infection, such as pneumonia, or respiratory failure, where the lungs stop working and the person is unable to breathe.

• #38

  https://111.wales.nhs.uk/creutzfeldtjakobdisease/

  Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress, usually around 2 years, rather than a few months. […] Advanced neurological symptoms of all forms of CJD can include: loss of physical co-ordination, which can affect a wide range of functions, such as walking, speaking and balance (ataxia), muscle twitches and spasms, loss of bladder control (urinary incontinence) and bowel control (bowel incontinence), blindness, swallowing difficulties (dysphagia), loss of speech, loss of voluntary movement. […] As the condition progresses to its final stages, people with all forms of CJD will become totally bedridden. They often become totally unaware of their surroundings and require around-the-clock care. […] Death will inevitably follow, usually either as a result of an infection, such as pneumonia (a lung infection), or respiratory failure, where the lungs stop working and the person is unable to breathe.

• #39 Creutzfeldt-Jakob Disease | Conditions | UCSF Health

  https://www.ucsfhealth.org/conditions/creutzfeldt-jakob-disease

  In advanced stages of the disease, patients have difficulties with movement, swallowing and talking. In the final stage, patients lose all mental and physical function and may lapse into a coma. Many patients die from an infection such as pneumonia. […] The average duration of disease from the onset of symptoms to death is four to six months. Ninety percent of patients die within a year. Some cases progress very rapidly, lasting only a few weeks before the patient’s death, and others may last two or three years, especially if the disease occurs at an early age.

• #40 Creutzfeldt–Jakob disease – Wikipedia

  https://en.wikipedia.org/wiki/Creutzfeldt%E2%80%93Jakob_disease

  Early symptoms include memory problems, behavioral changes, poor coordination, and visual and/or auditory disturbances. […] Later symptoms include dementia, involuntary movements, blindness and/or deafness, weakness, and coma. […] The duration of the disease varies greatly, but sporadic (non-inherited) CJD can be fatal within months or even weeks. […] Most affected people die six months after initial symptoms appear, often of pneumonia due to impaired coughing reflexes. […] The symptoms of CJD are caused by the progressive death of the brain’s nerve cells, which are associated with the build-up of abnormal prion proteins forming in the brain. […] Life expectancy is greatly reduced for people with Creutzfeldt-Jakob disease, with the average being less than 6 months. […] As of 1981, no one was known to have lived longer than 2.5 years after the onset of CJD symptoms.

• #41 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Patients gradually lose mobility and speech and progress into a comatose state. Certain infections, such as pneumonia, can lead to death. […] Patients with sporadic CJD are typically between 55 and 75 years old. Death occurs within a year of onset, with the median duration of illness being 4 to 5 months. The median age of death in individuals with sporadic CJD is 68 years. Sporadic CJD is similar to dementia in presentation but progresses much more rapidly. […] Genetic CJD has phenotypic variability that may be attributed to the low penetrance of PRNP mutations. Patients with genetic CJD are usually younger than individuals with sporadic CJD, manifesting behavioral and cognitive changes initially, and incoordination and movement abnormalities over the next few months. […] Patients with variant CJD are often younger than patients with sporadic CJD, initially presenting with psychiatric symptoms, behavioral changes, and painful dysesthesias. Movement disorders may develop early, but dementia is usually a late sign.

• #42 Clinical Symptoms of CJD | Pathology | School of Medicine | Case Western Reserve University

  https://case.edu/medicine/pathology/divisions/national-prion-disease-pathology-surveillance-center/human-prion-diseases/clinical-symptoms-cjd

  Symptoms of prion disease can vary widely and often mimic other illnesses. Sporadic CJD presents itself in a variety of ways, though typically looks homogeneous towards the end of the disease duration. Clinical presentation can include a „classic CJD” phenotype, demonstrating cognitive impairment and cerebellar impairment such as gait ataxia or incoordination. However, most cases of CJD do not present with a clinical syndrome that is immediately identifiable as sCJD. Many cases will present with cognitive impairment and may initially be misdiagnosed as a different type of dementia (e.g., Alzheimer’s disease, frontotemporal dementia, dementia with Lewy bodies). Other cases may present with isolated visual symptoms (i.e., Heidenhain variant) or pure gait ataxia for a period of time before other symptoms emerge (i.e., Oppenheimer-Brownell variant). Nevertheless, some cases may present with a non-specific psychiatric syndrome, as a mood disorder or anxiety. It is not unusual for sCJD to be misdiagnosed as other illness because of symptoms that overlap with more common conditions. Oftentimes the illness has to progress and include more common symptoms, such as myoclonus, for clinicians to appropriately arrive at a clinical suspicion of the disease. The average duration of sCJD is 4-6 months, from illness onset until the patient passes. The majority of patients with sCJD succumb to their illness within a year, but some cases can survive a year or two. However, because of the difficulty in diagnosing sCJD, it is not uncommon for there to be a very short time period between diagnosis and death (e.g., one month). sCJD is typically a disease of mid-to-late life, with an average age of onset in the mid-60’s, but with cases as young as 14 and as old as 101.

• #43 Prion Diseases | Memory and Aging Center

  https://memory.ucsf.edu/dementia/rapidly-progressive-dementias/prion-diseases

  The age at onset depends on the age at exposure and incubation time. […] In the early stages, patients often present with personality changes and psychiatric symptoms such as depression or withdrawal. Psychiatric symptoms are often the most prominent feature early in vCJD, but dementia develops later. The motor symptoms of vCJD (stumbling, falls and difficulty walking) also tend to appear earlier in vCJD than in classic CJD. The estimated incubation period is 5 to 40 years, and the duration of illness is typically 12-14 months after signs and symptoms appear. vCJD affects people in their 20s, much earlier in age than people with sporadic CJD.

• #44 Creutzfeldt-Jakob Disease: Symptoms, Causes, and CJD in Australia

  https://brainfoundation.org.au/disorders/creutzfeldt-jakob-disease/

  CJD: The accumulation of misfolded prion protein causes neuronal dysfunction and the hallmark vacuolation (sponge-like or spongiform) changes in the brain (gray matter). Patients typically present with rapidly progressive dementia and gross motor impairment (such as unsteady gait), culminating in death on average within 4-6 months. Symptoms characteristically include cognitive decline, behavioural changes, impaired balance, lack of coordination, muscle jerking (myoclonus), weakness and spasticity. Patients are usually 50-70 years old but illness onset can be in adolescence or as late as the ninth decade. […] Variant CJD (vCJD) typically manifests a longer duration of illness (median ~14 months) and presents with psychiatric and sensory symptoms; it usually affects a much younger age group (median age at death 28 years). […] CJD is always fatal and is unfortunately distinctive because of its typically rapid clinical progression. The duration of illness can vary but approximately 80% of patients die within a year of symptom onset with a small number of patients surviving for more than two years.

• #45 Background Information – CEIP

  https://ceip.us/projects/cjd/background-information/

  There are broad similarities between all forms of CJD involving neurological and psychiatric problems that get progressively worse. Typically patients have problems with dementia that rapidly worsens as well as difficulties with walking and movement. […] Sporadic CJD is characterized by spontaneous onset of rapidly progressive dementia, sudden, involuntary jerking of a muscle or group of muscles (myoclonus), visual disturbance, tremors, rigidity, balance and difficulties with coordination, spasticity, inability to speak (akinetic mutism). The disease course is rapid and death typically occurs within 6 months after disease onset. Age at onset in sCJD cases is usually greater than 60 years of age. […] Familial CJD In general, the symptoms of the familial form of CJD are similar to those of sporadic CJD. Often familial CJD is diagnosed at an earlier age (around 50 years of age), has a later onset of dementia and a longer course of illness (6 to 36 months) than is typical for sCJD.

• #46

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  As the condition progresses to its final stages, people with all forms of CJD will become totally bedridden. […] They often become totally unaware of their surroundings and require around-the-clock care. […] They also often lose the ability to speak and can’t communicate with their carers. […] Death will inevitably follow, usually either as a result of an infection, such as pneumonia, or respiratory failure, where the lungs stop working and the person is unable to breathe.

• #47 Creutzfeldt-Jakob Disease (CJD): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/6001-creutzfeldt-jakob-disease

  Once symptoms start, it tends to worsen quickly, with different symptoms happening as the disease causes different areas of your brain to deteriorate. […] In the early stages of the disease, people have changes in behavior and more mild symptoms, such as trouble with focusing and memory. […] As the condition gets worse, people with CJD lose the ability to take care of themselves and have trouble controlling their muscle movements. […] In the last stage of CJD, people stop talking, communicating and moving, with death following soon after. […] Most cases of CJD are fatal within a few months to a year after diagnosis. […] Unfortunately, CJD has a very poor outlook because the condition isnt curable or treatable. […] It also worsens very quickly in most cases, causing death within weeks or months. […] About 70% of people with CJD dont survive more than a year.

• #48 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  CJD’s prognosis is extremely poor despite all the advances that have helped understand this disease. The condition is invariably fatal. Death occurs within one year of symptom onset, except in some cases. […] CJD’s complications encompass both physical and psychosocial difficulties. Individuals affected by CJD often withdraw from friends and family and ultimately lose their ability to recognize or relate to them. Patients also lose their capacity for self-care and often eventually slip into a coma. CJD has a 100% fatality rate.

• #49 Creutzfeldt–Jakob disease – Wikipedia

  https://en.wikipedia.org/wiki/Creutzfeldt%E2%80%93Jakob_disease

  Early symptoms include memory problems, behavioral changes, poor coordination, and visual and/or auditory disturbances. […] Later symptoms include dementia, involuntary movements, blindness and/or deafness, weakness, and coma. […] The duration of the disease varies greatly, but sporadic (non-inherited) CJD can be fatal within months or even weeks. […] Most affected people die six months after initial symptoms appear, often of pneumonia due to impaired coughing reflexes. […] The symptoms of CJD are caused by the progressive death of the brain’s nerve cells, which are associated with the build-up of abnormal prion proteins forming in the brain. […] Life expectancy is greatly reduced for people with Creutzfeldt-Jakob disease, with the average being less than 6 months. […] As of 1981, no one was known to have lived longer than 2.5 years after the onset of CJD symptoms.

• #50

  https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/symptoms/

  The pattern of symptoms can vary depending on the type of Creutzfeldt-Jakob disease (CJD). […] In sporadic CJD, the symptoms mainly affect the workings of the nervous system (neurological symptoms) and these symptoms rapidly worsen in the space of a few months. […] In variant CJD, symptoms that affect a person’s behaviour and emotions (psychological symptoms) will usually develop first. […] These are then followed by neurological symptoms around 4 months later, which get worse over the following few months. […] Familial CJD has the same sort of pattern as sporadic CJD, but it often takes longer for the symptoms to progress usually around 2 years, rather than a few months. […] Initial neurological symptoms of sporadic CJD can include: difficulty walking caused by problems with balance and co-ordination, slurred speech, numbness or pins and needles in different parts of the body, dizziness, vision problems, such as double vision, hallucinations (seeing or hearing things that aren’t really there).

• #51 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Patients gradually lose mobility and speech and progress into a comatose state. Certain infections, such as pneumonia, can lead to death. […] Patients with sporadic CJD are typically between 55 and 75 years old. Death occurs within a year of onset, with the median duration of illness being 4 to 5 months. The median age of death in individuals with sporadic CJD is 68 years. Sporadic CJD is similar to dementia in presentation but progresses much more rapidly. […] Genetic CJD has phenotypic variability that may be attributed to the low penetrance of PRNP mutations. Patients with genetic CJD are usually younger than individuals with sporadic CJD, manifesting behavioral and cognitive changes initially, and incoordination and movement abnormalities over the next few months. […] Patients with variant CJD are often younger than patients with sporadic CJD, initially presenting with psychiatric symptoms, behavioral changes, and painful dysesthesias. Movement disorders may develop early, but dementia is usually a late sign.

• #52 Creutzfeldt-Jakob Disease | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/creutzfeldt-jakob-disease

  Creutzfeldt-Jakob disease (CJD) is a rare, rapidly progressing brain disorder. […] Like other prion diseases, CJD causes problems with muscle coordination, thinking, and memory. […] This disease tends to progress rapidly. About 70% of people with CJD die within one year of getting the disease. […] The main symptoms of CJD are cognitive decline leading to dementia, involuntary muscle jerks (myoclonus), and lack of coordination of movements. […] Early symptoms of the disease may include poor coordination, walking and balance problems, confusion, disorientation, and delusions, problems with thinking, memory, and judgment, behavior changes, such as depression, mood swings, and anxiety, speech difficulty, insomnia or changes in sleeping patterns, vision changes, hallucinations or distorted perception of the world, dizziness, and tremor. […] As CJD progresses, other symptoms can appear, including weakness of the arms and legs, blindness, inability to move or speak, problems swallowing, and coma. […] But these symptoms tend to worsen faster in CJD than in Alzheimer’s disease and most other types of dementia.

• #53 Creutzfeldt-Jakob Disease (CJD) – HelpGuide.org

  https://www.helpguide.org/aging/dementia/creutzfeldt-jakob-disease-cjd

  Creutzfeldt-Jakob disease (CJD) is a degenerative brain disorder caused by misshapen brain proteins. Symptoms of CJD can include: Slurred speech, Problems with muscle coordination and balance, Vision problems, Hallucinations, Numbness in body parts, Dizziness, Irritability, Anxiety, Insomnia, Severe depression, Social withdrawal, Impaired memory, thinking, and judgment. Symptoms and their progression can vary depending on the type of CJD a patient has. For example, in sporadic cases, the disease can run its course in five to six months. In cases of familial CJD, symptoms tend to take years, rather than months, to progress. Incubation period can vary by type as well, with vCJD potentially having a decades-long incubation. The initial symptoms of vCJD are often more psychiatric in nature, often leading to incorrect medical referrals. After several weeks or months, more obvious neurological symptoms usually appear. As the disease rapidly progresses, patients with all forms of CJD generally experience: Visual deterioration and eventual blindness, Dementia, Involuntary muscle contractions, Muscle paralysis, Loss of speech, Difficulty swallowing, Incontinence, Coma.

• #54 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  Patients gradually lose mobility and speech and progress into a comatose state. Certain infections, such as pneumonia, can lead to death. […] Patients with sporadic CJD are typically between 55 and 75 years old. Death occurs within a year of onset, with the median duration of illness being 4 to 5 months. The median age of death in individuals with sporadic CJD is 68 years. Sporadic CJD is similar to dementia in presentation but progresses much more rapidly. […] Genetic CJD has phenotypic variability that may be attributed to the low penetrance of PRNP mutations. Patients with genetic CJD are usually younger than individuals with sporadic CJD, manifesting behavioral and cognitive changes initially, and incoordination and movement abnormalities over the next few months. […] Patients with variant CJD are often younger than patients with sporadic CJD, initially presenting with psychiatric symptoms, behavioral changes, and painful dysesthesias. Movement disorders may develop early, but dementia is usually a late sign.

• #55 Sporadic prion disease | National Prion Clinic – UCL – University College London

  https://www.ucl.ac.uk/national-prion-clinic/sporadic-prion-disease

  In a minority of people the illness can present in a different (atypical) way. A number of types of such atypical CJD are recognised; examples are of an illness in which the prominent features are a disturbance of balance and movement, or alternatively visual deterioration. Occasionally the disease will resemble a stroke, having an extremely sudden onset.

• #56 Clinical Symptoms of CJD | Pathology | School of Medicine | Case Western Reserve University

  https://case.edu/medicine/pathology/divisions/national-prion-disease-pathology-surveillance-center/human-prion-diseases/clinical-symptoms-cjd

  Symptoms of prion disease can vary widely and often mimic other illnesses. Sporadic CJD presents itself in a variety of ways, though typically looks homogeneous towards the end of the disease duration. Clinical presentation can include a „classic CJD” phenotype, demonstrating cognitive impairment and cerebellar impairment such as gait ataxia or incoordination. However, most cases of CJD do not present with a clinical syndrome that is immediately identifiable as sCJD. Many cases will present with cognitive impairment and may initially be misdiagnosed as a different type of dementia (e.g., Alzheimer’s disease, frontotemporal dementia, dementia with Lewy bodies). Other cases may present with isolated visual symptoms (i.e., Heidenhain variant) or pure gait ataxia for a period of time before other symptoms emerge (i.e., Oppenheimer-Brownell variant). Nevertheless, some cases may present with a non-specific psychiatric syndrome, as a mood disorder or anxiety. It is not unusual for sCJD to be misdiagnosed as other illness because of symptoms that overlap with more common conditions. Oftentimes the illness has to progress and include more common symptoms, such as myoclonus, for clinicians to appropriately arrive at a clinical suspicion of the disease. The average duration of sCJD is 4-6 months, from illness onset until the patient passes. The majority of patients with sCJD succumb to their illness within a year, but some cases can survive a year or two. However, because of the difficulty in diagnosing sCJD, it is not uncommon for there to be a very short time period between diagnosis and death (e.g., one month). sCJD is typically a disease of mid-to-late life, with an average age of onset in the mid-60’s, but with cases as young as 14 and as old as 101.

• #57 Clinical Symptoms of CJD | Pathology | School of Medicine | Case Western Reserve University

  https://case.edu/medicine/pathology/divisions/national-prion-disease-pathology-surveillance-center/human-prion-diseases/clinical-symptoms-cjd

  Symptoms of prion disease can vary widely and often mimic other illnesses. Sporadic CJD presents itself in a variety of ways, though typically looks homogeneous towards the end of the disease duration. Clinical presentation can include a „classic CJD” phenotype, demonstrating cognitive impairment and cerebellar impairment such as gait ataxia or incoordination. However, most cases of CJD do not present with a clinical syndrome that is immediately identifiable as sCJD. Many cases will present with cognitive impairment and may initially be misdiagnosed as a different type of dementia (e.g., Alzheimer’s disease, frontotemporal dementia, dementia with Lewy bodies). Other cases may present with isolated visual symptoms (i.e., Heidenhain variant) or pure gait ataxia for a period of time before other symptoms emerge (i.e., Oppenheimer-Brownell variant). Nevertheless, some cases may present with a non-specific psychiatric syndrome, as a mood disorder or anxiety. It is not unusual for sCJD to be misdiagnosed as other illness because of symptoms that overlap with more common conditions. Oftentimes the illness has to progress and include more common symptoms, such as myoclonus, for clinicians to appropriately arrive at a clinical suspicion of the disease. The average duration of sCJD is 4-6 months, from illness onset until the patient passes. The majority of patients with sCJD succumb to their illness within a year, but some cases can survive a year or two. However, because of the difficulty in diagnosing sCJD, it is not uncommon for there to be a very short time period between diagnosis and death (e.g., one month). sCJD is typically a disease of mid-to-late life, with an average age of onset in the mid-60’s, but with cases as young as 14 and as old as 101.

• #58 Creutzfeldt-Jakob Disease: Expert Explains This Rare And Complex Brain Disorder | OnlyMyHealth

  https://www.onlymyhealth.com/what-is-creutzfeldt-jakob-disease-variants-symptoms-causes-diagnosis-and-treatment-1711601458

  CJD symptoms evolve rapidly, often including: […] According to Cureus, the most common initial manifestation of this illness is cognitive decline, observed in approximately 35% of patients. In about 17.5% of cases, the first indication may present as cerebellar dysfunction, behavioural changes, or constitutional symptoms. […] According to a 2023 study, CJD inevitably leads to fatality, with survival typically ranging from several months to one year, and the average time from onset to death reported at 7.6 months. Consequently, upon diagnosis, the neural damage is widespread, and neurodegeneration is profound. […] Diagnosing CJD can be challenging due to its rarity and diverse symptoms. Doctors may use a combination of medical history, physical examinations, brain scans, and cerebrospinal fluid analysis to reach a diagnosis.

• #59 Creutzfeldt-Jakob disease – Diagnosis & treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/creutzfeldt-jakob-disease/diagnosis-treatment/drc-20371230

  A neurological exam may point to Creutzfeldt-Jakob disease (CJD) if you’re experiencing: […] Muscle twitching and spasms. […] Changes in reflexes. […] Coordination problems. […] Vision problems. […] Blindness. […] People with CJD have characteristic changes that can be detected on certain MRI scans. […] No effective treatment exists for Creutzfeldt-Jakob disease or any of its variants. Many medicines have been tested and haven’t shown benefits. Health care providers focus on relieving pain and other symptoms and on making people with these diseases as comfortable as possible.

• #60 Creutzfeldt-Jakob Disease

  https://www.health.ny.gov/diseases/communicable/creutzfeldt-jakob/fact_sheet.htm

  Creutzfeldt-Jakob disease, often referred to as CJD, is a rare, fatal disease affecting the nervous system. […] People with CJD develop dementia and quickly deteriorate mentally. Other symptoms may include twitching, rigid muscles, lack of coordination, decrease in vision, and the inability to speak. Approximately one-half of the individuals diagnosed with CJD die within six months of the time their symptoms began; by one year 90 to 95 percent have died. […] CJD is suspected based on the typical signs and symptoms and progression of the disease. The presence of certain proteins in the cerebrospinal fluid (CSF) and typical electroencephalogram (EEG) patterns have also been used to make a diagnosis of CJD. The only way to confirm a diagnosis of CJD is to obtain a brain tissue specimen by either brain biopsy or on autopsy. […] Treatment of prion diseases such as CJD remains supportive; no specific therapy has been shown to prevent these diseases or to stop the progression of these diseases.

• #61 Creutzfeldt-Jakob Disease

  https://www.health.ny.gov/diseases/communicable/creutzfeldt-jakob/fact_sheet.htm

  Creutzfeldt-Jakob disease, often referred to as CJD, is a rare, fatal disease affecting the nervous system. […] People with CJD develop dementia and quickly deteriorate mentally. Other symptoms may include twitching, rigid muscles, lack of coordination, decrease in vision, and the inability to speak. Approximately one-half of the individuals diagnosed with CJD die within six months of the time their symptoms began; by one year 90 to 95 percent have died. […] CJD is suspected based on the typical signs and symptoms and progression of the disease. The presence of certain proteins in the cerebrospinal fluid (CSF) and typical electroencephalogram (EEG) patterns have also been used to make a diagnosis of CJD. The only way to confirm a diagnosis of CJD is to obtain a brain tissue specimen by either brain biopsy or on autopsy. […] Treatment of prion diseases such as CJD remains supportive; no specific therapy has been shown to prevent these diseases or to stop the progression of these diseases.

• #62 Creutzfeldt-Jakob disease – Diagnosis & treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/creutzfeldt-jakob-disease/diagnosis-treatment/drc-20371230

  A neurological exam may point to Creutzfeldt-Jakob disease (CJD) if you’re experiencing: […] Muscle twitching and spasms. […] Changes in reflexes. […] Coordination problems. […] Vision problems. […] Blindness. […] People with CJD have characteristic changes that can be detected on certain MRI scans. […] No effective treatment exists for Creutzfeldt-Jakob disease or any of its variants. Many medicines have been tested and haven’t shown benefits. Health care providers focus on relieving pain and other symptoms and on making people with these diseases as comfortable as possible.

• #63 Creutzfeldt-Jakob disease: a rapidly progressing form of dementia — DPUK

  https://www.dementiasplatform.uk/news-and-media/blog/creutzfeldt-jakob-disease-a-rapidly-progressing-form-of-dementia

  Creutzfeldt-Jakob disease (CJD) is a rare form of dementia that affects one in every 5,000 people across the world. In CJD symptoms get worse very quickly, with 90% of patients dying within a year of their diagnosis. […] Like more common types of dementia, CJD attacks the brain causing confusion, memory impairment, disorientation, depression, agitation, and problems with thinking skills like planning and judgement. It also affects movement, triggering involuntary jerky movements, muscle stiffness, twitches, and difficulty walking. CJD also impacts vision, resulting in abnormal perceptions, double vision and hallucinations. […] Unfortunately, there is no treatment able to slow or stop the progression of CJD, but prion protein itself is the obvious target for experimental treatment.

• #64 About Variant Creutzfeldt-Jakob Disease (vCJD) | vCJD | CDC

  https://www.cdc.gov/variant-creutzfeldt-jakob/about/index.html

  It is always fatal, usually within 14 months of the first symptoms. […] But, once symptoms begin, it is always fatal. Most people with vCJD live with the illness for one to two years, with an average time of 13-14 months. […] Later in the illness, patients typically have dementia and neurologic signs such as poor coordination. […] There is unfortunately no cure for vCJD. No specific therapy slows or stops the disease’s progression once symptoms begin. […] Treatment involves providing supportive care to help make the person more comfortable as their illness progresses.

• #65 The Psychiatric Presentation of Creutzfeldt-Jakob Disease

  https://www.psychiatrist.com/pcc/psychiatric-presentation-creutzfeldt-jakob-disease/

  Creutzfeldt-Jakob disease (CJD) is a rapidly progressing prion disease. Most patients with CJD have psychiatric and behavioral symptoms, and the efficacy of symptomatic treatments is limited. […] In the ED, she exhibited photophobia, headache, neck spasms, visual hallucinations, myoclonus, and psychomotor agitation. […] Neurological symptoms typically appear first with behavioral and psychiatric symptoms following, but psychiatric symptoms appear first in up to 20% of patients. Most patients have psychiatric symptoms within 100 days of onset. […] Symptomatic treatments include selective serotonin reuptake inhibitors for depression, acetylcholinesterase inhibitors for hallucinations, benzodiazepines for agitation, and atypical antipsychotics for agitation, mood, and psychosis. These treatments are marginally successful. No medication class shows improvement in greater than 60% of patients. […] The patient received increasing doses of quetiapine for agitation and visual hallucinations with limited results. Her myoclonus also worsened. Given the prevalence and severity of psychiatric and behavioral symptoms in CJD, further research into effective symptomatic treatment is imperative.

• #66 The Psychiatric Presentation of Creutzfeldt-Jakob Disease

  https://www.psychiatrist.com/pcc/psychiatric-presentation-creutzfeldt-jakob-disease/

  Creutzfeldt-Jakob disease (CJD) is a rapidly progressing prion disease. Most patients with CJD have psychiatric and behavioral symptoms, and the efficacy of symptomatic treatments is limited. […] In the ED, she exhibited photophobia, headache, neck spasms, visual hallucinations, myoclonus, and psychomotor agitation. […] Neurological symptoms typically appear first with behavioral and psychiatric symptoms following, but psychiatric symptoms appear first in up to 20% of patients. Most patients have psychiatric symptoms within 100 days of onset. […] Symptomatic treatments include selective serotonin reuptake inhibitors for depression, acetylcholinesterase inhibitors for hallucinations, benzodiazepines for agitation, and atypical antipsychotics for agitation, mood, and psychosis. These treatments are marginally successful. No medication class shows improvement in greater than 60% of patients. […] The patient received increasing doses of quetiapine for agitation and visual hallucinations with limited results. Her myoclonus also worsened. Given the prevalence and severity of psychiatric and behavioral symptoms in CJD, further research into effective symptomatic treatment is imperative.

• #67 FF #389 Palliative Care Issues in Creutzfeldt-Jakob Disease | Palliative Care Network of Wisconsin

  https://www.mypcnow.org/fast-fact/palliative-care-issues-in-creutzfeldt-jakob-disease/

  Symptom onset follows an undetermined incubation period, estimated at 10-12 years. Initially, patients present with difficulty walking, impaired concentration, emotional lability, depression, disordered sleep, diplopia, and hallucinations. This is followed by ataxia, startle-induced myoclonus, and a rapidly progressive dementia (RPD) developing over weeks to months. […] CJD is incurable and ultimately fatal. Clinical progression leads to akinetic mutism, pronounced myoclonus, and a moribund functional status. Death often occurs within one year of symptom onset, though many die within 6 months. Hereditary CJD may have a slightly longer course. […] There are no available treatments to cure or slow CJD progression. Palliative care consultation at CJD diagnosis can benefit advance care planning, anticipatory guidance, and symptom management. Hospice referral at the onset of RPD should be considered.

• #68 Creutzfeldt Jakob Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507860/

  CJD’s prognosis is extremely poor despite all the advances that have helped understand this disease. The condition is invariably fatal. Death occurs within one year of symptom onset, except in some cases. […] CJD’s complications encompass both physical and psychosocial difficulties. Individuals affected by CJD often withdraw from friends and family and ultimately lose their ability to recognize or relate to them. Patients also lose their capacity for self-care and often eventually slip into a coma. CJD has a 100% fatality rate.

• #69 Creutzfeldt-Jakob disease | Lima Memorial Health System

  https://www.limamemorial.org/health-library/HIE%20Multimedia-TextOnly/1/000788

  The outcome of CJD is very poor. People with sporadic CJD are unable to care for themselves within 6 months or less after symptoms begin. The disorder is fatal in a short time, usually within 8 months. People who have variant CJD get worse more slowly, but the condition is still fatal. A few people survive for as long as 1 or 2 years. The cause of death is usually infection, heart failure, or respiratory failure. […] The course of CJD is: Infection with the disease, Severe malnutrition, Dementia in some cases, Loss of ability to interact with others, Loss of ability to function or care for oneself, Death.

• #70 A Systematic Review of Sporadic Creutzfeldt-Jakob Disease: Pathogenesis, Diagnosis, and Therapeutic Attempts

  https://www.mdpi.com/2035-8377/16/5/79

  The disease progresses rapidly to significant cognitive impairment, associating other neurological signs with the presenting ones, such as dysarthria or loss of speech, and patients rather rapidly develop akinetic mutism. […] Death occurs within weeks to months, although, in rare cases, survival may be possible for a few years.

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