Demencja naczyniowa
Etiologia i przyczyny

Demencja naczyniowa, stanowiąca 15-25% wszystkich przypadków demencji, jest spowodowana uszkodzeniem mózgu na skutek zaburzeń przepływu krwi, najczęściej w wyniku udaru mózgu, choroby małych naczyń, miażdżycy czy krwotoku mózgowego. Patogeneza obejmuje niedokrwienie i hipoperfuzję mózgu, prowadzące do śmierci neuronów i uszkodzenia istoty białej, co skutkuje deficytami funkcji poznawczych. Udar zwiększa ryzyko demencji o około 70-120%, a około 33% pacjentów po udarze rozwija demencję w ciągu 5 lat. Demencja wielozawałowa i choroba małych naczyń (np. choroba Binswangera) są kluczowymi mechanizmami, a częstość występowania demencji mieszanej (naczyniowej i Alzheimera) jest wysoka, co komplikuje diagnostykę i leczenie. Czynniki genetyczne, takie jak CADASIL, są rzadkie, ale mogą predysponować do rozwoju demencji naczyniowej.

Demencja naczyniowa – etiologia, przyczyny, czynniki ryzyka

Demencja naczyniowa jest ogólnym terminem opisującym zaburzenia funkcji poznawczych, w tym problemów z rozumowaniem, planowaniem, osądem, pamięcią i innymi procesami myślowymi, spowodowane uszkodzeniem mózgu w wyniku upośledzenia przepływu krwi do mózgu. Jest to druga najczęściej występująca forma otępienia po chorobie Alzheimera, stanowiąca około 15-25% wszystkich przypadków demencji.123

Ogólne mechanizmy patofizjologiczne

Demencja naczyniowa jest spowodowana zaburzeniami w dopływie krwi do mózgu, które prowadzą do uszkodzenia tkanki mózgowej. Gdy naczynia krwionośne w mózgu ulegają uszkodzeniu, zwężeniu lub zablokowaniu, przepływ krwi do komórek mózgowych zostaje zmniejszony lub całkowicie zatrzymany. To zaburzenie przepływu krwi pozbawia mózg niezbędnego tlenu i składników odżywczych, powodując uszkodzenie i ostatecznie śmierć komórek mózgowych.123

Badania wykazały silny związek między chorobami układu sercowo-naczyniowego, dotyczącymi serca i naczyń krwionośnych, a chorobami naczyniowymi mózgu, prowadzącymi do upośledzenia funkcji poznawczych i demencji. Patogeneza demencji naczyniowej jest rozumiana następująco: czynniki ryzyka naczyniowego prowadzą do chorób naczyń mózgowych, które z kolei powodują uszkodzenie mózgu; wynikające z tego zakłócenie sieci poznawczych prowadzi ostatecznie do rozwoju demencji naczyniowej.12

Główne przyczyny demencji naczyniowej

Udar mózgu

Udar mózgu jest jedną z najczęstszych przyczyn demencji naczyniowej. Można zachorować na demencję naczyniową po udarze, który blokuje tętnicę w mózgu, ale nie wszystkie udary powodują demencję naczyniową. Zależy to od ciężkości i lokalizacji udaru. Czy udar wpływa na myślenie i rozumowanie, zależy od jego ciężkości i lokalizacji.12

Udar niedokrwienny (zawał) blokujący tętnicę mózgową zwykle powoduje szereg objawów, które mogą obejmować demencję naczyniową. Historia udaru zwiększa ryzyko rozwoju demencji o około 70%, a niedawny udar zwiększa to ryzyko o około 120%. Około jednej trzeciej osób, które przeszły udar, rozwija demencję w ciągu 5 lat.1234

Mikroudary

Demencja wielozawałowa (multi-infarct dementia) jest spowodowana wieloma małymi udarami (nazywanymi także przejściowymi atakami niedokrwiennymi lub TIA), które powodują drobne, ale rozległe uszkodzenia mózgu. Często udary te mogą być tak małe, że nie są zauważalne – nazywa się je „cichymi udarami”. Ryzyko demencji naczyniowej zwiększa się wraz z liczbą udarów, które występują w czasie.123

Niektóre osoby z demencją naczyniową mają również uszkodzenia mózgu spowodowane chorobą Alzheimera. Stan ten znany jest jako demencja mieszana. Badania wskazują, że demencja naczyniowa i choroba Alzheimera często współwystępują, co sprawia, że „czyste” przypadki któregokolwiek z tych stanów są stosunkowo rzadkie.12

Choroba małych naczyń

Choroba małych naczyń (small vessel disease) jest istotną przyczyną demencji naczyniowej. Dotyczy ona małych naczyń krwionośnych głęboko w mózgu, które ulegają zwężeniu i zatkaniu. Uszkodzenia te powodują ograniczenie dopływu krwi do części mózgu. Uszkodzenia mogą narastać z czasem i mogą powodować objawy naczyniowego upośledzenia poznawczego, które ostatecznie może prowadzić do demencji naczyniowej.12

Choroba małych naczyń może powodować podkorową demencję naczyniową, znaną również jako choroba Binswangera. Jest ona związana z nieleczonym nadciśnieniem lub cukrzycą, które prowadzą do choroby naczyniowej. Jest spowodowana wysokim ciśnieniem krwi, pogrubieniem tętnic i nieadekwatnym przepływem krwi.12

Krwotok mózgowy

Krwotok mózgowy jest kolejną przyczyną demencji naczyniowej. Jest on często spowodowany wysokim ciśnieniem krwi, które osłabia naczynie krwionośne prowadzące do krwawienia do mózgu, powodując uszkodzenie, lub przez nagromadzenie białka w małych naczyniach krwionośnych występujące wraz z starzeniem się, osłabiając je z czasem (mózgowa angiopatia amyloidowa).1

Mózgowa angiopatia amyloidowa (CAA) jest chorobą, w której szkodliwe białko zwane amyloidem gromadzi się, powodując zwężenie i większą przepuszczalność naczyń krwionośnych. Zwiększa to prawdopodobieństwo wystąpienia udaru.12

Choroby i stany związane z demencją naczyniową

Miażdżycowanie tętnic

Miażdżyca (atherosclerosis) to choroba, w której duże lub średnie naczynia krwionośne stają się węższe, ponieważ złogi tłuszczu gromadzą się i zatykają wnętrze naczyń. Ogranicza to przepływ krwi przez nie i może zwiększyć prawdopodobieństwo wystąpienia udaru.1

Badania neuropatologiczne ilustrują wysoki stopień heterogeniczności demencji naczyniowej, z wieloma i nakładającymi się typami chorób naczyń mózgowych, uszkadzających wiele miejsc w drzewie naczyniowym. Miażdżyca dużych tętnic doprowadzających, często związana z paleniem i hiperlipidemią, może powodować zawały terytorialne poprzez okluzję tętnic mózgowych lub zatorowość, powodując klasyczny „stopniowy” spadek funkcji poznawczych i funkcjonalnych charakterystycznych dla demencji naczyniowej.1

Arterioskleroza

Arterioskleroza, głównie związana z nadciśnieniem, może powodować chorobę okluzyjną małych tętnic, które odżywiają głębokie, penetrujące struktury, prowadząc do zawałów lakunarnych, centralnego krwotoku i mikrokrwawień mózgowych.1

Choroba naczyń mikrokrążenia, najbardziej ściśle związana z cukrzycą, powszechnie zakłóca funkcję metaboliczną na poziomie włośniczkowym.1

Genetyczne uwarunkowania

W wyjątkowo rzadkich przypadkach nieuniknione stany genetyczne mogą również zwiększać ryzyko demencji naczyniowej. Demencja naczyniowa sama w sobie nie jest dziedziczna (genetyczna). Ale stany, które się do niej przyczyniają, mogą występować w rodzinach biologicznych, jak wysokie ciśnienie krwi i choroby serca.12

Dwie rzadkie formy demencji naczyniowej wynikają z wielu udarów występujących w kontekście mutacji (zmian) w niektórych genach. CADASIL (mózgowa autosomalnie dominująca arteriopatia z zawałami podkorowymi i leukoencefalopatią) jest genetycznym zaburzeniem, które ogólnie prowadzi do demencji typu naczyniowego. Jeden rodzic z genem dla CADASIL przekazuje go dziecku, co czyni go zaburzeniem dziedziczenia autosomalnie dominującego.12

Inne rzadkie arteriopatie, takie jak arteriopatie zapalne (np. guzkowe zapalenie tętnic, zapalenie tętnic skroniowych) i arteriopatie niezapalne (np. choroba moyamoya, dysplazja włóknisto-mięśniowa) mogą powodować wiele zawałów i mogą prowadzić do demencji naczyniowej.1

Czynniki ryzyka

Istnieje wiele czynników, które zwiększają szanse danej osoby na rozwój demencji naczyniowej, w tym wiek, inne stany zdrowotne i czynniki stylu życia.1

Wiek i płeć

Największym czynnikiem ryzyka demencji naczyniowej jest wiek, a ryzyko to wzrasta, gdy osoba osiąga 65 lat. Ryzyko rozwoju demencji naczyniowej w przybliżeniu podwaja się co pięć lat po 65 roku życia.123

Demencja naczyniowa najczęściej występuje u osób w wieku od 60 do 75 lat. Mężczyźni wydają się być bardziej narażeni niż kobiety, a stan ten dotyka Afroamerykanów częściej niż osoby innych ras.1

Choroby układu krążenia

Istnieje wiele problemów zdrowotnych, które zwiększają ryzyko rozwoju demencji naczyniowej. Osoby, które mają problemy z sercem i krążeniem krwi, takie jak wysokie ciśnienie krwi lub choroba serca, mają wyższe ryzyko rozwoju demencji naczyniowej.1

Osoba, która przeszła udar mózgu lub która ma cukrzycę lub chorobę serca, ma około dwukrotnie większe prawdopodobieństwo rozwoju demencji naczyniowej niż ktoś, kto nie miał tych stanów.1

Sercowo-naczyniowe czynniki ryzyka dla demencji naczyniowej obejmują: palenie, nadciśnienie, hiperlipidemię, cukrzycę i migotanie przedsionków.12

Nadciśnienie tętnicze

Wysokie ciśnienie krwi jest największym czynnikiem ryzyka demencji naczyniowej, po wieku. Nasze tętnice stają się sztywniejsze i węższe wraz z wiekiem lub jeśli mamy nieleczone wysokie ciśnienie krwi przez długi czas. To sprawia, że jesteśmy bardziej narażeni na uszkodzenie tętnic i rozwój demencji naczyniowej.1

Wśród wszystkich czynników, wysokie ciśnienie krwi niesie największe ryzyko, ponieważ demencja naczyniowa rzadko występuje bez niego.1

Cukrzyca

Cukrzyca może uszkodzić naczynia krwionośne w całym ciele, w tym te w mózgu. Gdy to uszkodzenie występuje w mózgu, zwiększy to ryzyko demencji naczyniowej i udaru.1

Hiperlipidemia

Wysokie poziomy cholesterolu LDL („złego” cholesterolu) są związane z podwyższonym ryzykiem demencji naczyniowej.12

Migotanie przedsionków

Ta forma arytmii (nieprawidłowego rytmu serca) powoduje powstawanie skrzepów krwi w sercu, które mogą oderwać się i przemieścić do mózgu, prowadząc do udaru i demencji naczyniowej.1

Palenie tytoniu

Palenie powoduje bezpośrednie uszkodzenie naczyń krwionośnych, zwiększając prawdopodobieństwo rozwoju demencji naczyniowej i innych chorób układu krążenia. Duże badanie kohortowe opublikowane w 2010 roku obserwowało 21 123 intensywnych palaczy z okresu średniego życia (więcej niż 2 paczki dziennie) przez średnio 23 lata. U tych osób stwierdzono po ponad dwóch dekadach zwiększone o ponad 100% ryzyko demencji, choroby Alzheimera i demencji naczyniowej u obu płci i we wszystkich grupach etnicznych.12

Otyłość

Nadmierna masa ciała zwiększa ryzyko wszelkiego rodzaju chorób naczyniowych, potencjalnie prowadząc do demencji naczyniowej. Otyłość jest powszechnie uważana za czynnik ryzyka dla chorób naczyniowych w ogóle.12

Brak aktywności fizycznej

Brak ćwiczeń może prowadzić do problemów takich jak otyłość, choroby serca, wysokie ciśnienie krwi i wysoki cholesterol, które zwiększają ryzyko rozwoju demencji naczyniowej.1

Rasa i pochodzenie etniczne

Osoby pochodzenia czarnoafrykańskiego, karaibskiego lub południowoazjatyckiego w Wielkiej Brytanii mają wyższe ryzyko cukrzycy i chorób sercowo-naczyniowych niż osoby pochodzenia białego, szczególnie jeśli mają nadwagę.1

Badanie z 2016 roku wykazało, że częstość występowania diagnozy demencji naczyniowej wśród dorosłych w wieku 65 lat i starszych była najwyższa wśród dorosłych rasy czarnej w porównaniu do innych ras. Badanie z 2018 roku wskazało, że po udarze dorośli rasy czarnej byli prawie dwukrotnie bardziej narażeni na rozwój demencji naczyniowej niż dorośli rasy białej.1

Mechanizmy patofizjologiczne

Badacze badający VCID (Vascular Cognitive Impairment and Dementia) eksplorują różnorodne stany, które wpływają na przepływ krwi do i w obrębie mózgu, w tym zawały (obszar martwej tkanki wynikającej z braku dopływu krwi), krwotoki (krwawienie z pękniętych lub uszkodzonych naczyń krwionośnych), hipoperfuzję mózgową (zmniejszony przepływ krwi) i chorobę małych naczyń w mózgu, taką jak ta, która jest związana z hiperintensywnościami istoty białej (białe plamy widoczne na skanach MRI mózgu) i udarem.1

Trzy najczęstsze mechanizmy demencji naczyniowej to wiele zawałów korowych, pojedynczy zawał strategiczny oraz choroba małych naczyń. W demencji wielozawałowej połączone efekty różnych zawałów powodują pogorszenie funkcji poznawczych poprzez wpływ na sieci neuronalne.1

Choroba małych naczyń dotyka wszystkie małe naczynia mózgu i powoduje 2 główne zespoły: chorobę Binswangera i stan lakunarny.1

Główny proces patofizjologiczny w demencji naczyniowej: najpierw naczynia krwionośne prowadzące do lub w mózgu nie dostarczają wystarczającej ilości krwi z powodu zakrzepów lub innych problemów. Zmniejszony przepływ krwi prowadzi do uszkodzenia mózgu; niski poziom tlenu głodzi komórki, niszcząc hipokamp, jądra podstawy i istotę białą. Niebezpieczne cząsteczki, takie jak reaktywne formy tlenu, uszkadzają komórki i mitochondria, wywołując zapalną odpowiedź immunologiczną. Komórki mózgowe w hipokampie umierają, neurony degradują się, spowalniają i są uszkadzane, a funkcje poznawcze pogarszają się.1

Demencja mieszana

Na podstawie badań autopsyjnych, czysta demencja naczyniowa jest mniej powszechna niż demencja o wielu etiologiach (tj. mieszana), w której demencja naczyniowa jest tylko jedną z etiologii. Neuropatologia Alzheimera, z charakterystycznymi płytkami amyloidowymi beta i splątkami, jest najczęściej współwystępującą patologią z demencją naczyniową. Inne współwystępujące procesy neuropatologiczne obejmują alfa-synukleinopatię, patologię tau, patologię białka TAR wiążącego DNA-43 i reakcje mikrogleju.1

Na podstawie dowodów kliniczno-patologicznych, czysta demencja naczyniowa stanowi około 10% przypadków demencji. Demencja o wielu etiologiach z komponentem naczyniowym, najczęściej w połączeniu z chorobą Alzheimera, jest częstsza, stanowiąc 30-40% przypadków demencji.1

Ostatnie doniesienia w literaturze neuropatologicznej i neuropsychologicznej wskazują, że demencja naczyniowa i choroba Alzheimera często współwystępują, co sprawia, że „czyste” przypadki którejkolwiek z tych chorób są stosunkowo rzadkie.1

Rozróżnienie między demencją naczyniową a demencją Alzheimera staje się coraz bardziej niewyraźne, ponieważ czynniki ryzyka naczyniowego odgrywają rolę w obu chorobach i oba typy demencji mogą współistnieć u tego samego pacjenta. Jednak podczas gdy są one widoczne głównie w istocie białej w demencji naczyniowej, w demencji Alzheimera przeważają one w korowej istocie szarej.1

Podsumowanie czynników ryzyka

Czynniki ryzyka demencji naczyniowej można podzielić na modyfikowalne i niemodyfikowalne:

  • Niemodyfikowalne:
    • Wiek (zwłaszcza powyżej 65 roku życia)
    • Płeć (mężczyźni są bardziej narażeni)
    • Rasa i pochodzenie etniczne (wyższe ryzyko u Afroamerykanów i osób pochodzenia południowoazjatyckiego)
    • Predyspozycje genetyczne (rzadkie przypadki)
  • Modyfikowalne:
    • Nadciśnienie tętnicze
    • Cukrzyca
    • Hiperlipidemia (wysoki poziom cholesterolu)
    • Choroby serca i naczyń
    • Migotanie przedsionków
    • Palenie tytoniu
    • Otyłość
    • Brak aktywności fizycznej
    • Niezdrowa dieta
    • Nadmierne spożycie alkoholu

1234

Strategiczne podejście do profilaktyki demencji naczyniowej polega na modyfikacji czynników ryzyka naczyniowego w średnim wieku, co może pomóc w zapobieganiu udarom i demencji naczyniowej. Pojedynczym najważniejszym modyfikowalnym czynnikiem ryzyka w średnim wieku jest nadciśnienie tętnicze.1

Demencja naczyniowa jest modyfikowalna i można jej zapobiegać. Istnieją dowody na to, że obniżenie wysokiego ciśnienia krwi po udarze zmniejsza ryzyko demencji poudarowej.1

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  1. 16.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Vascular dementia – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/vascular-dementia/symptoms-causes/syc-20378793
    Vascular dementia is a general term describing problems with reasoning, planning, judgment, memory and other thought processes caused by brain damage from impaired blood flow to your brain. […] You can develop vascular dementia after a stroke blocks an artery in your brain, but strokes don’t always cause vascular dementia. Whether a stroke affects your thinking and reasoning depends on your stroke’s severity and location. Vascular dementia can also result from other conditions that damage blood vessels and reduce circulation, depriving your brain of vital oxygen and nutrients. […] Vascular dementia results from conditions that damage your brain’s blood vessels, reducing their ability to supply your brain with the amounts of nutrition and oxygen it needs to perform thought processes effectively.
  • #1 Vascular Dementia: Causes, Symptoms, and Treatments – Majestic Care
    https://www.majesticcare.com/vascular-dementia/
    Vascular dementia is caused by different conditions that interrupt the flow of blood and oxygen supply to the brain and damage blood vessels in the brain. […] Research has shown a strong link between cardiovascular disease, involving the heart and blood vessels, and cerebrovascular disease, involving the brain, and subsequent cognitive impairment and dementia. […] Researchers investigating VCID are exploring diverse conditions that affect blood flow to and within the brain, including infarcts (an area of dead tissue resulting from a lack of blood supply), hemorrhages (bleeding from ruptured or damaged blood vessels), cerebral hypoperfusion (reduced blood flow), and small vessel disease in the brain such as that thought to be associated with white matter hyperintensities (white patches seen on brain MRI scans), and stroke.
  • #1 Vascular dementia – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/vascular-dementia/symptoms-causes/syc-20378793
    Common conditions that may lead to vascular dementia include: Stroke (infarction) blocking a brain artery. Strokes that block a brain artery usually cause a range of symptoms that may include vascular dementia. […] With both silent and apparent strokes, the risk of vascular dementia increases with the number of strokes that occur over time. One type of vascular dementia involving many strokes is called multi-infarct dementia. […] Brain hemorrhage. Often caused by high blood pressure weakening a blood vessel leading to bleeding into the brain causing damage or from buildup of protein in small blood vessels occurring with aging weakening them over time (cerebral amyloid angiopathy). […] Narrowed or chronically damaged brain blood vessels. Conditions that narrow or inflict long-term damage on your brain blood vessels also can lead to vascular dementia. These conditions include the wear and tear associated with aging, high blood pressure, abnormal aging of blood vessels (atherosclerosis), diabetes.
  • #1
    https://www.nhs.uk/conditions/vascular-dementia/causes/
    Vascular dementia is caused by reduced blood flow to the brain, which damages and eventually kills brain cells. […] This is usually due to: narrowing of the small blood vessels deep inside the brain, known as subcortical vascular dementia or small vessel disease; a stroke (where the blood supply to part of the brain is suddenly cut off, usually because of a blood clot), called post-stroke dementia or single-infarct dementia; lots of „mini strokes” (also called transient ischaemic attacks or TIAs) that cause tiny but widespread damage to the brain, known as multi-infarct dementia. […] Some people with vascular dementia also have brain damage caused by Alzheimer’s disease. This is known as mixed dementia. […] These problems increase the risk of damage to the blood vessels in and around your brain, or cause blood clots to develop inside them. […] In rare cases, unavoidable genetic conditions can also increase your risk of vascular dementia.
  • #1 Dementia – different types | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/dementia-different-types
    Vascular dementia is the second most common form of dementia and it is associated with disease in the blood vessels in the brain. […] Vascular dementia is the broad term for dementia associated with disease in the blood vessels of the brain. This blood vessel disease affects the circulation of blood to the brain and causes damage. […] Vascular dementia may appear similar to Alzheimers disease. A mixture of Alzheimers disease and vascular dementia can occur in some people. Vascular dementia is the second most common form of dementia and there are a number of different types. […] This type of vascular dementia is caused by a number of small strokes, called mini-strokes or transient ischaemic attacks (TIAs). This is caused by disease in the large blood vessels of the brain. […] Subcortical vascular dementia can be related to untreated high blood pressure or diabetes that leads to vascular disease. It is caused by high blood pressure, thickening of the arteries and inadequate blood flow.
  • #1 What is vascular dementia? | Alzheimer’s Research UK
    https://www.alzheimersresearchuk.org/dementia-information/types-of-dementia/vascular-dementia/
    Cerebral amyloid angiopathy (CAA) is a disease where a harmful protein called amyloid builds up, making blood vessels narrower and leakier. This increases the likelihood of a stroke occurring. […] Small vessel disease (SVD) is when small blood vessels deep inside the brain become damaged slowly over time. The brain cells supplied by these tiny vessels don’t get enough oxygen and nutrients because of the reduced blood flow. […] Because these small arteries only supply a tiny area of the brain, at first the damage to brain cells rarely causes any noticeable symptoms. However, over many years the damage can spread and may lead to dementia symptoms.
  • #1 What is vascular dementia? | Alzheimer’s Research UK
    https://www.alzheimersresearchuk.org/dementia-information/types-of-dementia/vascular-dementia/
    Strokes are a common cause of vascular dementia. A stroke occurs when blood supply to a part of the brain is suddenly cut off due to damaged blood vessels. […] This causes damage to brain cells by reducing their access to oxygen and nutrients. If someone has sudden problems with memory and thinking after a stroke which do not improve over time, they may be diagnosed with post-stroke vascular dementia. […] Roughly one in three people who have a stroke go on to develop dementia. Unfortunately, people who have a stroke are more likely to have more strokes, and so have a higher risk of developing dementia in the future. […] Blood vessel diseases can also cause the brain damage that leads to vascular dementia. Some common blood vessel diseases are explained below. […] Atherosclerosis is a disease where large or medium blood vessels get narrower, as fat deposits build up and clog the inside of the vessels. This limits blood flow through them and can make a stroke more likely to occur.
  • #1 Vascular Dementia – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430817/
    Neuropathologic studies illustrate vascular dementia’s high degree of heterogeneity, with multiple and overlapping types of cerebrovascular disease damaging multiple sites in the vascular tree. […] Cardiovascular risk factors for vascular dementia include smoking, hyperlipidemia, hypertension, diabetes, atrial fibrillation, obesity, and physical inactivity, among others. […] A brief prcis of patterns of damage in the vascular tree that can result in cognitive impairment include: Atherosclerosis of large feeding arteries, often associated with smoking and hyperlipidemia, can cause territorial infarcts via cerebrovascular arterial occlusion or thromboembolism, resulting in the classic „step-wise” cognitive and functional decline of vascular dementia. […] Arteriolosclerosis, mainly linked to hypertension, can cause occlusive disease of small arteries that feed deep, penetrating structures, leading to lacunar infarcts, central hemorrhage, and cerebral microbleeds.
  • #1 Vascular Dementia – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430817/
    Microvascular disease, most closely associated with diabetes, commonly disrupts metabolic function at the capillary level. […] Finally, the APOE4 genotype and cerebral amyloid angiopathy (in which amyloid- accumulates primarily in pial and cortical arteries and capillaries, causing lobar hemorrhage, cortical microinfarcts, and white matter hyperintensities) are also risk factors for vascular cognitive impairment and dementia. […] Mixed vascular disease is more likely to cause cognitive and functional decline than pure atherosclerosis or arteriolosclerosis.
  • #1 Vascular Dementia: What It Is, Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/22216-vascular-dementia
    Healthcare providers use different terms for vascular dementia that reflect the number and type of blood vessels involved and the way the symptoms progress. […] Vascular dementia itself isn’t hereditary (genetic). But the conditions that contribute to it can run in biological families, like high blood pressure and heart disease. […] Two rare forms of vascular dementia result from multiple strokes happening in the context of mutations (changes) in certain genes.
  • #1 Vascular Dementia: Practice Essentials, Background, Pathophysiology
    https://emedicine.medscape.com/article/292105-overview
    The 3 most common mechanisms of vascular dementia are multiple cortical infarcts, a strategic single infarct, and small vessel disease. […] Mild vascular cognitive impairment can occur in elderly persons. It is associated with cognitive decline that is worse than expected for age and educational level, but the effects do not meet the criteria for dementia. […] In multi-infarct dementia, the combined effects of different infarcts produce cognitive decline by affecting the neural nets. […] Small vessel disease affects all the small vessels of the brain and produces 2 major syndromes, Binswanger disease and lacunar state. […] Other less common syndromes may lead to vascular dementia. Rare arteriopathies such as inflammatory arteriopathy (eg, polyarteritis nodosa, temporal arteritis) and noninflammatory arteriopathy (e.g., moyamoya disease, fibromuscular dysplasia) can cause multiple infarcts and can lead to vascular dementia.
  • #1 What is vascular dementia? | Alzheimer’s Society
    https://www.alzheimers.org.uk/about-dementia/types-dementia/vascular-dementia
    There are several types of vascular dementia, including: […] They are all a result of problems with blood supply to parts of the brain, which then become damaged. […] There are many things that increase a persons chances of developing vascular dementia. For example their age, other health conditions and lifestyle factors. […] The biggest risk factor for vascular dementia is age and the risk increases once a person gets to 65.
  • #1 Vascular Dementia: Symptoms, Types, Diagnosis, and Treatment
    https://www.webmd.com/stroke/vascular-dementia
    Likewise, being at high risk of stroke goes hand in hand with the risk for vascular dementia. One-quarter to one-third of strokes are thought to result in some degree of dementia. People who smoke, drink too much alcohol, have diabetes, or have heart disease also have a higher rate of the condition. […] Vascular dementia most commonly occurs in people between the ages of 60 and 75. Men seem to be more vulnerable than women, and the condition affects African Americans more often than people of other races. People whose age, sex, or race puts them at increased risk of vascular dementia have that much more reason to manage risk factors within their control.
  • #1 Who gets vascular dementia? | Alzheimer’s Society
    https://www.alzheimers.org.uk/about-dementia/types-dementia/risk-factors-vascular-dementia
    The biggest risk factor for vascular dementia is ageing. Once a person gets to 65, their risk of developing the condition roughly doubles every five years. […] There are lots of health problems that increase a persons risk of developing vascular dementia. […] People who have problems with their heart and blood circulation, such as high blood pressure or heart disease, have a higher risk of developing vascular dementia. […] A person who has had a stroke, or who has diabetes or heart disease, is around twice as likely to develop vascular dementia as someone who has not had these conditions. […] Vascular dementia is mostly caused by cardiovascular diseases (such as high blood pressure, stroke or heart problems). […] There is a lot of evidence that our lifestyle choices can affect our risk of developing cardiovascular diseases.
  • #1 Vascular Dementia – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430817/
    Vascular dementia is among the most common etiologies of major neurocognitive disorder (MND), affecting primarily older adults (65), and it is the leading nondegenerative cause of dementia. […] Cardiovascular risk factors smoking, hypertension, hyperlipidemia, diabetes, and atrial fibrillation commonly underlie vascular dementia. […] Vascular dementia is distinguished from other forms of MND in that it results from brain ischemia or hemorrhage and not from one or more underlying neurodegenerative proteinopathies. […] The pathogenesis of vascular dementia is understood as follows: vascular risk factors lead to cerebrovascular disease that, in turn, causes brain injury; the resulting disruption of cognitive networks culminates in vascular dementia. […] Recent reports in the neuropathological and neuropsychological literature posit that vascular dementia and Alzheimer disease frequently co-occur, making so-called pure cases of either condition comparatively rare.
  • #1 Vascular dementia risk factors | Alzheimer’s Research UK
    https://www.alzheimersresearchuk.org/dementia-information/types-of-dementia/vascular-dementia/risk-factors/
    Risk factors are things that change our likelihood of developing a disease. Factors that may increase our risk of developing vascular dementia include age, genetics, lifestyle, and other health conditions like high blood pressure and stroke. […] The biggest risk factor for vascular dementia is age, followed by high blood pressure. The older we get, the more likely we are to develop vascular dementia. Our arteries get stiffer and narrower as we get older, or if we have untreated high blood pressure for a long time. This makes us more likely to get damaged arteries and go on to develop vascular dementia. […] Having a stroke also increases your risk of developing vascular dementia. Risk factors that make a stroke more likely to happen are the same as those listed above. One in every three people who have a stroke go on to develop dementia. Most of these cases are thought to be vascular dementia.
  • #1 Vascular Dementia: Symptoms, Types, Diagnosis, and Treatment
    https://www.webmd.com/stroke/vascular-dementia
    Vascular dementia occurs when vessels that supply blood to the brain become blocked or narrowed. Strokes take place when the supply of blood carrying oxygen to the brain is suddenly cut off. However, not all people with stroke will develop vascular dementia. […] Vascular dementia can occur over time as „silent” strokes pile up. Quite often, vascular dementia draws attention to itself only when the effects of multiple strokes add up to significant disability. Avoiding and controlling risk factors such as diabetes, high blood pressure, smoking, and high cholesterol can help curb the risk of developing vascular dementia. […] Some risk factors for vascular dementia can be managed, while others, such as age and gender, cannot. Among all factors, high blood pressure carries the greatest risk because vascular dementia rarely occurs without it.
  • #1 A Complete Guide to Vascular Dementia: What You Need to Know
    https://www.lidementia.org/alzheimers-disease/types-of-dementia/vascular-dementia/
    High blood pressure – Consistent high blood pressure places additional stress on all blood vessels, including the ones in the brain. […] Diabetes – When you have high glucose levels, it can damage blood vessels in your body. And when this damage occurs in the brain, it will increase your risk of vascular dementia and stroke.
  • #1 A Complete Guide to Vascular Dementia: What You Need to Know
    https://www.lidementia.org/alzheimers-disease/types-of-dementia/vascular-dementia/
    Whether it’s an apparent or a silent stroke, the risk for vascular dementia increases with the number of strokes. […] The majority of people with the condition will begin to have symptoms after the age of 65, and the risk is substantially higher for those in their 80s and 90s. […] Considering vascular dementia is the result of a problem with blood flow to the brain, hardened arteries is a common risk factor. […] Other risk factors for vascular dementia include: Obesity – Being overweight is commonly regarded as a risk factor for vascular diseases in general. […] Smoking – Smoking causes direct damage to your blood vessels by increasing the likelihood of developing vascular dementia and other circulatory diseases. […] High Cholesterol – High levels of the „bad” cholesterol (LDL) are associated with heightened risk of vascular dementia.
  • #1 Dementia Causes and Risk Factors
    https://www.everydayhealth.com/dementia/causes-risk-factors/
    Diabetes High blood sugar (glucose) levels can damage blood vessels over time. […] Smoking By damaging blood vessels, smoking raises the risk for both atherosclerosis and vascular dementia. […] Obesity Excess body weight heightens the risk of all kinds of vascular disease, potentially leading to vascular dementia. […] Atrial Fibrillation This form of arrhythmia (abnormal heart rhythm) causes blood clots in the heart that can break off and travel to the brain, leading to stroke and vascular dementia.
  • #1 Vascular dementia – Dementia UK
    https://www.dementiauk.org/information-and-support/types-of-dementia/vascular-dementia/
    A lack of exercise can lead to problems like obesity, heart disease, high blood pressure and high cholesterol, which increase the risk of developing vascular dementia. […] There is a strong link between vascular dementia and smoking. This is because it can cause blockages in the arteries, which can disrupt the blood flow to the brain.
  • #1 Who gets vascular dementia? | Alzheimer’s Society
    https://www.alzheimers.org.uk/about-dementia/types-dementia/risk-factors-vascular-dementia
    Smoking damages a persons heart, lungs and blood circulation, particularly the blood vessels in the brain. […] Some people with a relative who has or had vascular dementia are concerned that they, or their family, are at greater risk. […] Most families affected by vascular dementia do not have single genes that pass on the disease. […] However, there are some rarer types of vascular dementia that get passed down through families. […] People from Black African, Black Caribbean or South Asian ethnic groups in the UK have a higher risk of diabetes and cardiovascular diseases than people from White ethnic groups, especially if they are overweight.
  • #1 Vascular Dementia: Symptoms, Causes, Treatment, & More
    https://www.health.com/vascular-dementia-symptoms-8403631
    A study from 2016 found the incidence of a vascular dementia diagnosis among adults ages 65 and older was highest among Black adults compared to other races. […] Delayed diagnoses of conditions that coexist with dementia can increase your likelihood of developing vascular dementia earlier in life. For example, a 2018 study indicated that after a stroke, Black adults were almost twice as likely as white adults to develop vascular dementia.
  • #1 Vascular Dementia: Causes, Symptoms, Risk Factors, and Treatment Options | MedEvidence
    https://www.medevidence.com/vascular-dementia-causes-symptoms-risk-factors-and-treatment-options
    Vascular dementia is the second most common form of dementia in the U.S., making up about 15-20% of cases. […] The main risk factor for developing vascular dementia is stroke, which increases the chance of getting the disease by up to 80%, depending on age. […] First, the blood vessels leading to or within the brain fail to deliver enough blood due to clotting or other issues. […] Reduced blood flow leads to damage in the brain; low oxygen starves hungry cells, degrading the hippocampus, basal ganglia, and white matter. […] Dangerous particles like reactive oxygen damage cells and mitochondria, prompting an inflammatory immune response. […] Brain cells in the hippocampus die, neurons degrade, slow, and are damaged, and cognition declines.
  • #1 Vascular Cognitive Impairment
    https://practicalneurology.com/diseases-diagnoses/alzheimer-disease-dementias/vascular-cognitive-impairment/30145/
    The second most common cerebral small vessel disease, CAA is caused by -amyloid deposition in the small arteries and arterioles of the leptomeninges and cerebral cortex. Rare genetic causes of CAA are marked by deposition of other types of amyloid. Vascular integrity loss resulting in large symptomatic and small asymptomatic brain hemorrhages is characteristic of CAA. […] Based on autopsy studies, however, pure vascular dementia is less common than multiple-etiology (ie, mixed) dementia, in which vascular dementia is only one etiology. Alzheimer neuropathology, with characteristic -amyloid plaques and tangles, is the most common co-occurring pathology with vascular dementia. Other co-occurring neuropathologic processes include a-synucleinopathy, tau pathology, TAR DNA-binding protein-43 pathology, and microglial reactions.
  • #1 Vascular Cognitive Impairment
    https://practicalneurology.com/diseases-diagnoses/alzheimer-disease-dementias/vascular-cognitive-impairment/30145/
    The major risk factors for vascular dementia and new dementia after stroke are listed in the Table. […] The prevalence and incidence of VCI increase with age. Based on clinicopathologic evidence, pure vascular dementia accounts for approximately 10% of dementia. Multiple-etiology dementia with a vascular component, most often in combination with AD, is more common, accounting for 30% to 40% of dementia. […] Patients with poststroke dementia experience a stepwise cognitive decline following a clinically diagnosed stroke. The link between the cerebrovascular disease and the onset of cognitive impairment is usually relatively clear. […] Vascular dementia can also manifest as a progressive or stepwise cognitive decline without a concurrent history of symptomatic stroke. This presentation is often associated with imaging evidence of clinically unrecognized cerebral small vessel disease (eg, multiple lacunar infarcts or extensive white matter lesions).
  • #1 Vascular Dementia: Causes and Treatment | Doctor
    https://patient.info/doctor/vascular-dementia
    Young-onset VaD has a genetic cause in some people. […] VaD is the second most common form of dementia in the West after Alzheimer’s disease. It is the most common form in some parts of Asia. Incidence increases with age. […] VaD is thought to account for around 17% of dementia in the UK. […] Prevalence of dementia following a first stroke varies depending on location and size of the infarct, definition of dementia, interval after stroke and age among other variables. […] Around one-third of individuals with stroke develop dementia within 5 years. […] The distinction between VaD and Alzheimer’s dementia is becoming increasingly blurred because vascular risk factors play a role in both diseases and both types of dementia may co-exist in the same patient. […] However, where they are seen mostly in white matter in VaD, in Alzheimer’s dementia they predominate in cortical grey matter.
  • #1 Vascular Dementia | Symptoms & Treatments | alz.org
    https://www.alz.org/alzheimers-dementia/what-is-dementia/types-of-dementia/vascular-dementia
    Vascular dementia is a decline in thinking skills caused by conditions that block or reduce blood flow to various regions of the brain, depriving them of oxygen and nutrients. […] Any condition that damages blood vessels anywhere in the body can cause brain changes linked to vascular dementia. As with Alzheimers disease, advancing age is a major risk factor. Additional risk factors for vascular dementia coincide with those that increase risk for heart disease, stroke and other conditions affecting blood vessels. […] The following strategies may reduce the risk of developing diseases that affect the heart and blood vessels and may help protect the brain: Don’t smoke. Keep your blood pressure, cholesterol and blood sugar within recommended limits. Eat a healthy, balanced diet. Exercise. Maintain a healthy weight. Limit alcohol consumption.
  • #1 Vascular Dementia: Causes and Treatment | Doctor
    https://patient.info/doctor/vascular-dementia
    VaD should not be diagnosed solely on the basis of a person having significant cardiovascular disease. […] The diagnosis of dementia requires: Comprehensive history and physical examination. The key to diagnosis is a good history of progressive impairment of memory and other cognitive functioning (usually requiring the help of a spouse, relative or friend). […] VaD is modifiable and preventable. Modifying vascular risk factors in mid-life may help to prevent stroke and VaD. The single most important modifiable risk factor in mid-life is hypertension, but the value of treating this is more debatable as age increases. […] There is not yet any convincing evidence that the treatment of hypertension reduces the incidence of dementia, although it appears likely that this is the case in mid-life treatment. […] There is evidence that lowering high blood pressure after stroke decreases the risk of post-stroke dementia.
  • #2 Dementia: What It Is, Causes, Symptoms, Treatment & TypesWhat It Is, Causes, Symptoms, Treatment & Types
    https://my.clevelandclinic.org/health/diseases/9170-dementia
    Dementia develops when the parts of your brain involved with learning, memory, decision-making or language are affected by infections or diseases. The most common cause of dementia is Alzheimers disease. […] But other known causes of dementia include: Vascular dementia. […] Vascular dementia: This is the second most common type of dementia. Its caused by conditions such as strokes or atherosclerosis, which block and damage blood vessels in your brain. […] About 15% to 25% of people with dementia have vascular dementia. […] Dementia is caused by damage to your brain. Dementia affects your brains nerve cells, which destroys your brains ability to communicate with its various areas. Dementia can also result from blocked blood flow to your brain, depriving it of needed oxygen and nutrients. […] All of the possible causes of dementia are discussed in the question, Are there different types of dementia? […] Dementias that arent reversible may still partially respond to medications that treat memory loss or behavior problems. These dementias include: Multi-infarct (vascular) dementia.
  • #2
    https://www.nhs.uk/conditions/vascular-dementia/causes/
    Vascular dementia is caused by reduced blood flow to the brain, which damages and eventually kills brain cells. […] This is usually due to: narrowing of the small blood vessels deep inside the brain, known as subcortical vascular dementia or small vessel disease; a stroke (where the blood supply to part of the brain is suddenly cut off, usually because of a blood clot), called post-stroke dementia or single-infarct dementia; lots of „mini strokes” (also called transient ischaemic attacks or TIAs) that cause tiny but widespread damage to the brain, known as multi-infarct dementia. […] Some people with vascular dementia also have brain damage caused by Alzheimer’s disease. This is known as mixed dementia. […] These problems increase the risk of damage to the blood vessels in and around your brain, or cause blood clots to develop inside them. […] In rare cases, unavoidable genetic conditions can also increase your risk of vascular dementia.
  • #2 Vascular Dementia – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430817/
    Vascular dementia is among the most common etiologies of major neurocognitive disorder (MND), affecting primarily older adults (65), and it is the leading nondegenerative cause of dementia. […] Cardiovascular risk factors smoking, hypertension, hyperlipidemia, diabetes, and atrial fibrillation commonly underlie vascular dementia. […] Vascular dementia is distinguished from other forms of MND in that it results from brain ischemia or hemorrhage and not from one or more underlying neurodegenerative proteinopathies. […] The pathogenesis of vascular dementia is understood as follows: vascular risk factors lead to cerebrovascular disease that, in turn, causes brain injury; the resulting disruption of cognitive networks culminates in vascular dementia. […] Recent reports in the neuropathological and neuropsychological literature posit that vascular dementia and Alzheimer disease frequently co-occur, making so-called pure cases of either condition comparatively rare.
  • #2 What Is Vascular Dementia?
    https://www.alzheimers.gov/alzheimers-dementias/vascular-dementia
    Vascular dementia is caused by conditions such as stroke that disrupt blood flow to the brain and lead to problems with memory, thinking, and behavior. […] Vascular dementia is caused by conditions that damage blood vessels in the brain and interrupt the flow of blood and oxygen to the brain. […] Not everyone who has had a stroke will develop vascular dementia. A persons risk for dementia after stroke depends on the size and number of strokes and the brain regions affected. Vascular dementia can also result from other conditions that impede blood flow and delivery of oxygen to the brain, such as narrowing of the arteries. […] High blood pressure, problems with the heartbeats rhythm, diabetes, and high cholesterol can increase a persons risk of vascular dementia.
  • #2 Vascular dementia – Wikipedia
    https://en.wikipedia.org/wiki/Vascular_dementia
    Vascular dementia can be caused by ischemic or hemorrhagic infarcts affecting multiple brain areas, including the anterior cerebral artery territory, the parietal lobes, or the cingulate gyrus. […] A history of stroke increases the risk of developing dementia by around 70%, and recent stroke increases the risk by around 120%. […] Brain vascular lesions can also be the result of diffuse cerebrovascular disease, such as small vessel disease. […] Risk factors for vascular dementia include increasing age, hypertension, smoking, hypercholesterolemia, diabetes mellitus, cardiovascular disease, and cerebrovascular disease. […] Vascular dementia can sometimes be triggered by cerebral amyloid angiopathy, which involves accumulation of amyloid beta plaques in the walls of the cerebral arteries, leading to breakdown and rupture of the vessels.
  • #2 What is vascular dementia? | Stroke Association
    https://www.stroke.org.uk/stroke/effects/vascular-dementia
    Vascular dementia happens when the blood supply to parts of your brain becomes reduced. This can be due to blood vessels being clogged, a stroke or a series of small strokes. Over time, areas of brain cells stop working, leading to symptoms of dementia. […] Another cause of vascular dementia is when many small strokes happen, creating lots of small areas of damage in your brain. Often, these strokes can be so small that you do not know you are having them. These are known as silent strokes. […] Vascular dementia can also be caused by small vessel disease. This is when the small blood vessels deep within your brain become narrow and clogged up. The damage stops blood from getting to parts of your brain. The damage can build up over time and may cause signs of vascular cognitive impairment. This can eventually lead to vascular dementia. […] Many of the things that increase your risk of small vessel disease, such as high blood pressure and diabetes, also increase your risk of stroke.
  • #2 Vascular Cognitive Impairment and Dementia – Neurologic Disorders – Merck Manual Professional Edition
    https://www.merckmanuals.com/professional/neurologic-disorders/delirium-and-dementia/vascular-cognitive-impairment-and-dementia
    Vascular cognitive impairment and dementia typically results from multiple cerebral infarcts (or sometimes hemorrhages). Although each infarct may be only minimally symptomatic in itself, the combination of multiple infarcts can cause enough neuronal or axonal loss to impair brain function. […] There are four major types of vascular cognitive impairment and dementias: Subcortical ischemic vascular cognitive impairment and dementia, Multi-infarct dementia, Poststroke dementia, and Mixed dementia. […] Subcortical ischemic vascular cognitive impairment and dementia is caused mainly by small vessel disease. […] Multi-infarct dementia affects medium-sized blood vessels, leading to large cortical infarcts. […] Post-stroke dementia is immediate and/or delayed irreversible cognitive decline that begins within 6 months after stroke.
  • #2 Vascular Dementia: What It Is, Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/22216-vascular-dementia
    Healthcare providers use different terms for vascular dementia that reflect the number and type of blood vessels involved and the way the symptoms progress. […] Vascular dementia itself isn’t hereditary (genetic). But the conditions that contribute to it can run in biological families, like high blood pressure and heart disease. […] Two rare forms of vascular dementia result from multiple strokes happening in the context of mutations (changes) in certain genes.
  • #2 Causes of Vascular Dementia | Stanford Health Care
    https://stanfordhealthcare.org/medical-conditions/brain-and-nerves/vascular-dementia/causes.html
    Vascular dementia (VaD) is caused by a lack of blood flow to the brain. Blood flow to a certain part of the brain may be decreased or interrupted by: […] Damage to a blood vessel from atherosclerosis, infection, or other causes, such as an autoimmune disorder. […] CADASIL (cerebral autosomal dominant arteriopathy with sub-cortical infarcts and leukoencephalopathy) is a genetic disorder that generally leads to dementia of the vascular type. One parent with the gene for CADASIL passes it on to a child, which makes it an autosomal-dominant inheritance disorder.
  • #2 Who gets vascular dementia? | Alzheimer’s Society
    https://www.alzheimers.org.uk/about-dementia/types-dementia/risk-factors-vascular-dementia
    The biggest risk factor for vascular dementia is ageing. Once a person gets to 65, their risk of developing the condition roughly doubles every five years. […] There are lots of health problems that increase a persons risk of developing vascular dementia. […] People who have problems with their heart and blood circulation, such as high blood pressure or heart disease, have a higher risk of developing vascular dementia. […] A person who has had a stroke, or who has diabetes or heart disease, is around twice as likely to develop vascular dementia as someone who has not had these conditions. […] Vascular dementia is mostly caused by cardiovascular diseases (such as high blood pressure, stroke or heart problems). […] There is a lot of evidence that our lifestyle choices can affect our risk of developing cardiovascular diseases.
  • #2 Vascular Dementia – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430817/
    Neuropathologic studies illustrate vascular dementia’s high degree of heterogeneity, with multiple and overlapping types of cerebrovascular disease damaging multiple sites in the vascular tree. […] Cardiovascular risk factors for vascular dementia include smoking, hyperlipidemia, hypertension, diabetes, atrial fibrillation, obesity, and physical inactivity, among others. […] A brief prcis of patterns of damage in the vascular tree that can result in cognitive impairment include: Atherosclerosis of large feeding arteries, often associated with smoking and hyperlipidemia, can cause territorial infarcts via cerebrovascular arterial occlusion or thromboembolism, resulting in the classic „step-wise” cognitive and functional decline of vascular dementia. […] Arteriolosclerosis, mainly linked to hypertension, can cause occlusive disease of small arteries that feed deep, penetrating structures, leading to lacunar infarcts, central hemorrhage, and cerebral microbleeds.
  • #2 Dementia Causes and Risk Factors
    https://www.everydayhealth.com/dementia/causes-risk-factors/
    Vascular dementia is caused by impaired blood flow to the brain, which prevents brain cells from getting the oxygen and nutrients they need damaging and eventually killing them. This can happen gradually when small blood vessels become damaged over time, or it can happen more suddenly when a stroke blocks major blood vessels. […] Risk factors for vascular dementia overlap with those for heart disease and stroke. They include the following: […] Atherosclerosis When a combination of cholesterol and other substances (known as plaque) builds up in your arteries, it can limit blood flow to your brain. […] High Cholesterol Higher levels of LDL (bad) cholesterol are linked to a higher vascular dementia risk. […] High Blood Pressure This condition puts extra stress on blood vessels, potentially damaging them throughout your body, including the brain.
  • #2 Vascular Dementia Clinical Presentation: History, Physical, Causes
    https://emedicine.medscape.com/article/292105-clinical
    Risk factors for vascular dementia include hypertension, smoking, hypercholesterolemia, diabetes mellitus, and cardiovascular and cerebrovascular disease. […] A large cohort study published in 2010 followed 21,123 heavy midlife smokers (more than 2 packs per day) for a mean of 23 years. These individuals were found more than 2 decades later to have a greater than 100% increased risk of dementia, Alzheimer disease, and vascular dementia in both sexes and across ethnic groups. […] Vascular dementia development after stroke can be influenced by many factors. Some of the important factors that can lead to the development of dementia are older age, lower education level, family history of dementia, left-sided lesions, larger lesions, larger periventricular white matter ischemic lesions, and strokes in thalamic artery territory, inferomedian temporal lobes, hippocampus, and watershed infarcts involving superior frontal and parietal regions.
  • #2 A Complete Guide to Vascular Dementia: What You Need to Know
    https://www.lidementia.org/alzheimers-disease/types-of-dementia/vascular-dementia/
    Whether it’s an apparent or a silent stroke, the risk for vascular dementia increases with the number of strokes. […] The majority of people with the condition will begin to have symptoms after the age of 65, and the risk is substantially higher for those in their 80s and 90s. […] Considering vascular dementia is the result of a problem with blood flow to the brain, hardened arteries is a common risk factor. […] Other risk factors for vascular dementia include: Obesity – Being overweight is commonly regarded as a risk factor for vascular diseases in general. […] Smoking – Smoking causes direct damage to your blood vessels by increasing the likelihood of developing vascular dementia and other circulatory diseases. […] High Cholesterol – High levels of the „bad” cholesterol (LDL) are associated with heightened risk of vascular dementia.
  • #2 Vascular Dementia: What It Is, Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/22216-vascular-dementia
    Vascular dementia results from conditions that damage blood vessels and block blood flow to your brain. […] Vascular dementia happens when there’s decreased blood flow to areas of your brain. […] Conditions that damage blood vessels in your brain or partially or fully block blood flow cause vascular dementia. […] Common causes of vascular dementia include narrowing (atherosclerosis) and/or blockage of many blood vessels (ischemic strokes) or capillaries (small vessel disease) in your brain. […] Certain factors increase your risk of experiencing these blood vessel issues and vascular dementia, including atrial fibrillation (Afib), diabetes, heart disease, high blood pressure (hypertension), high cholesterol (hyperlipidemia), history of stroke, increasing age, especially being 60 or older, and smoking.
  • #3 Vascular Dementia: Practice Essentials, Background, Pathophysiology
    https://emedicine.medscape.com/article/292105-overview
    Vascular dementia is the second most common form of dementia after Alzheimer disease (AD). The condition is not a single disease; it is a group of syndromes relating to different vascular mechanisms. […] In 1969, Mayer-Gross et al described this syndrome and reported that hypertension is the cause in approximately 50% of patients. Patients who have had a stroke are at increased risk for vascular dementia. […] The mainstay of management of vascular dementia is the prevention of new strokes. This includes administering antiplatelet drugs and controlling major vascular risk factors. Aspirin has also been found to slow the progression of vascular dementia. […] Vascular disease produces either focal or diffuse effects on the brain and causes cognitive decline. Focal cerebrovascular disease occurs secondary to thrombotic or embolic vascular occlusions.
  • #3
    https://www.nhs.uk/conditions/vascular-dementia/
    Vascular dementia is a common type of dementia caused by reduced blood flow to the brain. […] Vascular dementia is caused by reduced blood flow to the brain, which damages and eventually kills brain cells. […] This can happen as a result of narrowing and blockage of the small blood vessels inside the brain. […] a single stroke, where the blood supply to part of the brain is suddenly cut off. […] lots of „mini strokes” (also called transient ischaemic attacks, or TIAs) that cause tiny but widespread damage to the brain. […] In many cases, these problems are linked to underlying conditions, such as high blood pressure and diabetes, and lifestyle factors, such as smoking and being overweight. […] Tackling these might reduce your risk of vascular dementia in later life, although it’s not yet clear exactly how much your risk of dementia can be reduced.
  • #3 Vascular Dementia: Causes and Treatment | Doctor
    https://patient.info/doctor/vascular-dementia
    Young-onset VaD has a genetic cause in some people. […] VaD is the second most common form of dementia in the West after Alzheimer’s disease. It is the most common form in some parts of Asia. Incidence increases with age. […] VaD is thought to account for around 17% of dementia in the UK. […] Prevalence of dementia following a first stroke varies depending on location and size of the infarct, definition of dementia, interval after stroke and age among other variables. […] Around one-third of individuals with stroke develop dementia within 5 years. […] The distinction between VaD and Alzheimer’s dementia is becoming increasingly blurred because vascular risk factors play a role in both diseases and both types of dementia may co-exist in the same patient. […] However, where they are seen mostly in white matter in VaD, in Alzheimer’s dementia they predominate in cortical grey matter.
  • #3 Vascular Dementia: What It Is, Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/22216-vascular-dementia
    Vascular dementia results from conditions that damage blood vessels and block blood flow to your brain. […] Vascular dementia happens when there’s decreased blood flow to areas of your brain. […] Conditions that damage blood vessels in your brain or partially or fully block blood flow cause vascular dementia. […] Common causes of vascular dementia include narrowing (atherosclerosis) and/or blockage of many blood vessels (ischemic strokes) or capillaries (small vessel disease) in your brain. […] Certain factors increase your risk of experiencing these blood vessel issues and vascular dementia, including atrial fibrillation (Afib), diabetes, heart disease, high blood pressure (hypertension), high cholesterol (hyperlipidemia), history of stroke, increasing age, especially being 60 or older, and smoking.
  • #3 Vascular dementia risk factors | Alzheimer’s Research UK
    https://www.alzheimersresearchuk.org/dementia-information/types-of-dementia/vascular-dementia/risk-factors/
    Risk factors are things that change our likelihood of developing a disease. Factors that may increase our risk of developing vascular dementia include age, genetics, lifestyle, and other health conditions like high blood pressure and stroke. […] The biggest risk factor for vascular dementia is age, followed by high blood pressure. The older we get, the more likely we are to develop vascular dementia. Our arteries get stiffer and narrower as we get older, or if we have untreated high blood pressure for a long time. This makes us more likely to get damaged arteries and go on to develop vascular dementia. […] Having a stroke also increases your risk of developing vascular dementia. Risk factors that make a stroke more likely to happen are the same as those listed above. One in every three people who have a stroke go on to develop dementia. Most of these cases are thought to be vascular dementia.
  • #3 Vascular Dementia – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430817/
    Neuropathologic studies illustrate vascular dementia’s high degree of heterogeneity, with multiple and overlapping types of cerebrovascular disease damaging multiple sites in the vascular tree. […] Cardiovascular risk factors for vascular dementia include smoking, hyperlipidemia, hypertension, diabetes, atrial fibrillation, obesity, and physical inactivity, among others. […] A brief prcis of patterns of damage in the vascular tree that can result in cognitive impairment include: Atherosclerosis of large feeding arteries, often associated with smoking and hyperlipidemia, can cause territorial infarcts via cerebrovascular arterial occlusion or thromboembolism, resulting in the classic „step-wise” cognitive and functional decline of vascular dementia. […] Arteriolosclerosis, mainly linked to hypertension, can cause occlusive disease of small arteries that feed deep, penetrating structures, leading to lacunar infarcts, central hemorrhage, and cerebral microbleeds.
  • #4 Vascular Dementia: Symptoms, Causes, Treatment, & More
    https://www.health.com/vascular-dementia-symptoms-8403631
    Vascular dementia is a condition where memory, thinking, and behavior are impacted by damage to the blood vessels of the brain. When blood flow to the brain’s neurons (nerve cells) is reduced or stopped, these cells start to die when they can’t get the nutrients they need. As a result, the brain tissue begins to shrink. […] The most common cause of vascular dementia is multiple small strokes, often linked with high blood pressure (hypertension). However, not everyone who experiences a stroke will develop vascular dementia. […] Vascular dementia can also be caused by other conditions that reduce blood and oxygen flow to the brain, like intracranial stenosis, or the narrowing of the brain’s arteries. Risk factors like high blood pressure, irregular heartbeat, diabetes, metabolic syndrome, and high cholesterol can increase your likelihood of developing vascular dementia.
  • #4 Who gets vascular dementia? | Alzheimer’s Society
    https://www.alzheimers.org.uk/about-dementia/types-dementia/risk-factors-vascular-dementia
    The biggest risk factor for vascular dementia is ageing. Once a person gets to 65, their risk of developing the condition roughly doubles every five years. […] There are lots of health problems that increase a persons risk of developing vascular dementia. […] People who have problems with their heart and blood circulation, such as high blood pressure or heart disease, have a higher risk of developing vascular dementia. […] A person who has had a stroke, or who has diabetes or heart disease, is around twice as likely to develop vascular dementia as someone who has not had these conditions. […] Vascular dementia is mostly caused by cardiovascular diseases (such as high blood pressure, stroke or heart problems). […] There is a lot of evidence that our lifestyle choices can affect our risk of developing cardiovascular diseases.