Choroba małych naczyń
Etiologia i przyczyny

Choroba małych naczyń (Small Vessel Disease, SVD) to heterogenna grupa schorzeń dotyczących tętniczek, włośniczek i żyłek, prowadząca do niedokrwienia i uszkodzenia narządów takich jak mózg, serce, nerki czy siatkówka. Kluczowymi czynnikami ryzyka są nadciśnienie tętnicze, cukrzyca, hipercholesterolemia, otyłość, palenie tytoniu oraz brak aktywności fizycznej, które sprzyjają arteriolosklerozie i innym patologiom naczyniowym. Patogeneza SVD obejmuje m.in. dysfunkcję śródbłonka, uszkodzenie bariery krew-mózg, przewlekłe niedokrwienie, stan zapalny oraz przebudowę i usztywnienie ścian naczyń. Wyróżnia się formy sporadyczne i monogenowe, takie jak CADASIL (mutacja NOTCH3), CARASIL (HTRA1) czy mutacje COL4A1/2, które wykazują wysoką dziedziczność (50–80% dla zmian w istocie białej mózgu). SVD manifestuje się klinicznie m.in. jako mózgowa choroba małych naczyń (CSVD), będąca główną przyczyną udarów lakunarnych i demencji naczyniowej, oraz wieńcowa choroba małych naczyń (CMD), prowadząca do zaburzeń mikrounaczynienia serca.

Wprowadzenie do choroby małych naczyń

Choroba małych naczyń (Small Vessel Disease, SVD) to termin określający grupę schorzeń, które dotyczą małych naczyń krwionośnych w organizmie, takich jak tętniczki, włośniczki, żyłki i małe żyły. Choroba ta może dotyczyć różnych układów i narządów, w tym mózgu, serca, nerek, oczu i innych narządów o wysokim przepływie krwi. SVD prowadzi do zmniejszonego lub przerywanego przepływu krwi do dotkniętych narządów, co skutkuje ich niedokrwieniem i uszkodzeniem1. Jest to poważny problem zdrowotny, który stanowi główną przyczynę etiologiczną takich stanów jak niewydolność nerek, ślepota, udary lakunarne oraz demencja12.

Choroba małych naczyń nie jest pojedynczym schorzeniem, ale raczej zespołem różnych procesów patologicznych, które mogą być spowodowane przez różnorodne mechanizmy i czynniki3. W zależności od lokalizacji anatomicznej, SVD może przybierać różne formy kliniczne, przy czym najbardziej powszechne i najlepiej opisane są mózgowa choroba małych naczyń (Cerebral Small Vessel Disease, CSVD) oraz wieńcowa choroba małych naczyń (Coronary Microvascular Disease, CMD)45.

Etiologia choroby małych naczyń

Choroba małych naczyń może mieć różnorodne przyczyny, które można ogólnie podzielić na kilka głównych kategorii. Patogeneza SVD jest złożona i często wieloczynnikowa, co sprawia, że trudno jest określić pojedynczą, dominującą przyczynę6.

Klasyczne czynniki ryzyka naczyniowego

Tradycyjne czynniki ryzyka chorób naczyniowych odgrywają kluczową rolę w rozwoju choroby małych naczyń. Do najważniejszych należą:

  • Nadciśnienie tętnicze – jeden z najsilniejszych czynników ryzyka, prowadzący do strukturalnych zmian w ścianach naczyń78
  • Cukrzyca – wysokie poziomy glukozy we krwi powodują uszkodzenie śródbłonka naczyniowego910
  • Hipercholesterolemia – podwyższony poziom cholesterolu przyczynia się do zwężania się tętnic1112
  • Otyłość – zwiększa obciążenie układu sercowo-naczyniowego13
  • Palenie tytoniu – przyspiesza starzenie naczyń i zwiększa stan zapalny814
  • Brak aktywności fizycznej – osłabia ogólną kondycję układu sercowo-naczyniowego14

Te czynniki ryzyka mogą prowadzić do arterioloskleroza/” title=”arterioloskleroza” class=”to-tag” data-termid=”117657″>arteriolosklerozy, która jest jedną z najczęstszych patologii leżących u podstaw SVD35.

Procesy patologiczne w ścianach naczyń

Szereg procesów patologicznych może wpływać na strukturę i funkcję małych naczyń krwionośnych:

  • Arterioloskleroza – spowodowana starzeniem się, nadciśnieniem i innymi konwencjonalnymi czynnikami ryzyka naczyniowego; charakteryzuje się pogrubieniem ścian naczyń, co prowadzi do zmniejszenia światła naczyń i ograniczenia przepływu krwi315
  • Mózgowa angiopatia amyloidowa (CAA) – charakteryzuje się postępującym odkładaniem się białka amyloidu-β w ścianach naczyń mózgowych, co wpływa na korowe i oponowe naczynia; jest główną przyczyną krwotoków płatowych i niezależnym czynnikiem przyczyniającym się do zaburzeń poznawczych związanych z wiekiem316
  • Mikroateroma – odkładanie się płytki miażdżycowej u ujścia tętniczek penetrujących, co może prowadzić do udarów lakunarnych317
  • Lipohialinoza i martwica włóknikowata – procesy patologiczne charakteryzujące się koncentrycznym pogrubieniem hialinowym małych naczyń krwionośnych mózgu z utratą elastycznej blaszki ścian naczyń, co prowadzi do ich niedrożności1815

Patogeneza SVD charakteryzuje się dysfunkcją śródbłonka, zmniejszeniem gęstości naczyń włosowatych, mikrozakrzepami i przebudową mikronaczyniową10.

Mechanizmy genetyczne

Choć większość przypadków SVD ma charakter sporadyczny, istnieją również formy dziedziczne, które są związane z określonymi mutacjami genetycznymi:

  • Mózgowa autosomalnie dominująca arteriopatia z zawałami podkorowymi i leukoencefalopatią (CADASIL) – spowodowana mutacją w genie NOTCH31920
  • Mózgowa autosomalnie recesywna arteriopatia z zawałami podkorowymi i leukoencefalopatią (CARASIL) – spowodowana mutacją w genie HTRA12120
  • SVD związana z genami COL4A1/COL4A2 – mutacje w tych genach odpowiedzialnych za syntezę łańcuchów alfa kolagenu typu IV, związane z mikroangiopatiami2122
  • Mutacje w genie TREX-1 – mogą prowadzić do zespołu Aicardi-Goutièresa, tocznia rumieniowatego układowego i skórnego oraz waskulopatii siatkówki z leukoencefalopatią mózgową (RVCL)21
  • Choroba Fabry’ego – dziedziczne zaburzenie metabolizmu glikosfingolipidów związane z X, prowadzące do udarów21

Badania genetyczne wykazały wysoki stopień dziedziczności SVD, zwłaszcza u pacjentów z udarem mózgu o wczesnym początku23. Szacowana dziedziczność dla zmian w istocie białej mózgu jako surogatu SVD wynosi między 50% a 80%24.

Czynniki hormonalne i płciowe

Istnieją różnice płciowe w występowaniu SVD, szczególnie w przypadku wieńcowej choroby małych naczyń:

  • Kobiety są bardziej narażone na rozwój choroby małych naczyń serca niż mężczyźni425
  • Niskie poziomy estrogenu, szczególnie w okresie menopauzy, mogą zwiększać ryzyko wieńcowej choroby małych naczyń u kobiet414
  • Kobiety z wysokim ciśnieniem krwi przed menopauzą są bardziej narażone na wieńcową chorobę małych naczyń14
  • Intensywne lub nieregularne objawy menopauzy mogą również zwiększać ryzyko choroby serca14

Procesy zapalne i immunologiczne

Stan zapalny odgrywa istotną rolę jako mediator SVD, chociaż dokładne mechanizmy nie są w pełni poznane1:

  • Zapalenie naczyń małych – może być spowodowane reakcją alergiczną na lek lub żywność, infekcją (np. infekcją górnych dróg oddechowych lub wirusem, takimi jak wirusowe zapalenie wątroby typu B lub C albo HIV), a rzadko nowotworami26
  • Niektóre leki są powiązane ze zwiększonym ryzykiem zapalenia naczyń małych, w tym penicylina, cefalosporyny, sulfonamidy (w tym większość diuretyków pętlowych i tiazydowych), fenytoina i allopurynol26
  • Zaburzenia autoimmunologiczne, takie jak toczeń rumieniowaty układowy (SLE), zapalenie skórno-mięśniowe i reumatoidalne zapalenie stawów, charakteryzują się krążącymi przeciwciałami, które mogą atakować naczynia krwionośne, powodując zapalenie naczyń27

Inne czynniki etiologiczne

Istnieją również dodatkowe czynniki etiologiczne, które mogą przyczyniać się do rozwoju SVD:

  • Wiek – jeden z najsilniejszych czynników ryzyka SVD, związany z naturalnymi zmianami w naczyniach krwionośnych, takimi jak pogrubianie ścian naczyń i zmniejszenie ich elastyczności728
  • Zaawansowane produkty glikacji (AGEs) – powstają w wyniku przewlekle wysokiego poziomu cukru we krwi; przyłączają się do różnych białek, w tym kolagenu, lamininy i białek nerwów obwodowych, prowadząc do pogrubienia błony podstawnej, zwężenia naczyń krwionośnych, zmniejszenia przepływu krwi do tkanek i uszkodzenia niedokrwiennego29
  • Stres oksydacyjny – powodowany przez AGEs i inne szlaki, prowadzi do apoptozy perycytów i podocytów w siatkówce i nerkach, co skutkuje kruchością ściany naczyń włosowatych i zwiększonym wyciekiem naczyniowym29
  • Mikrobiota jelitowa – coraz więcej dowodów sugeruje, że dysbioza jelitowa może przyczyniać się do rozwoju SVD poprzez zwiększenie stanu zapalnego i uszkodzenie bariery krew-mózg20

Patofizjologia choroby małych naczyń

Patofizjologia choroby małych naczyń jest złożona i obejmuje szereg mechanizmów, które mogą działać niezależnie lub współdziałać ze sobą. Etiologiczne mechanizmy SVD można podsumować w czterech głównych szlakach30:

Niedokrwienie i niedotlenienie

Jednym z kluczowych mechanizmów patofizjologicznych w SVD jest zmniejszenie przepływu krwi przez małe naczynia, co prowadzi do niedokrwienia i niedotlenienia tkanek:

  • Uszkodzenie małych naczyń krwionośnych wpływa na ich zdolność do prawidłowego rozszerzania się, co powoduje ograniczenie dopływu krwi bogatej w tlen31
  • W chorobie małych naczyń wieńcowych uszkodzenie wewnętrznych ścian małych naczyń może powodować skurcze, które zakłócają przepływ krwi do serca32
  • W mózgowej chorobie małych naczyń niedokrwienie może prowadzić do mikrozawałów, a badania sugerują, że ciężar tych mikrozawałów może być znaczny, z szacunkami sugerującymi setki do tysięcy zawałów w pojedynczym mózgu33
  • Chroniczne niedokrwienie jest niezaprzeczalną cechą zarówno modeli mysich SVD, jak i pacjentów z SVD, chociaż nie jest jasne, czy jest ono przyczyną czy skutkiem uszkodzenia mózgu34

Dysfunkcja bariery krew-mózg

Bariera krew-mózg (BBB) jest kluczową strukturą regulującą przepływ substancji między krwią a mózgiem. Jej dysfunkcja jest ważnym elementem patofizjologii SVD:

  • Coraz więcej dowodów wskazuje, że uszkodzenie BBB jest kluczowym elementem patogenezy SVD35
  • Dysfunkcja śródbłonka naczyniowego może poprzedzać przerwanie BBB i jest uważana za kluczowy inicjator SVD6
  • Uszkodzona BBB może powodować zwiększenie płynu śródmiąższowego, a wynikający z tego obrzęk okołonaczyniowy może zatruć komórki mózgowe35
  • Różne mechanizmy mogą przyczyniać się do uszkodzenia BBB, w tym nadciśnienie, starzenie się, stres oksydacyjny i stany zapalne35

Zaburzenia drenażu płynów mózgowych

Zaburzenia drenażu płynu śródmiąższowego (ISF) i płynu mózgowo-rdzeniowego (CSF) mogą przyczyniać się do rozwoju SVD:

  • Coraz więcej dowodów sugeruje, że system glimfatyczny (system drenażu płynu w mózgu) jest upośledzony w SVD34
  • Zaburzenia dynamiki CSF/ISF mogą uczestniczyć w patogenezie SVD, ale wymaga to dalszych badań34

Stan zapalny naczyń

Stan zapalny jest ważnym mechanizmem patofizjologicznym w SVD:

  • Stan zapalny jest mediatorem SVD, chociaż nie jest jasne, które czynniki dominują w jego etiologii1
  • „Inflammaging” (stan zapalny związany ze starzeniem się) jest coraz częściej uważany za czynnik ryzyka SVD, szczególnie w przypadku SVD związanej z wiekiem35
  • Związek między stanem zapalnym a upośledzeniem BBB jest dobrze udokumentowany, jednak kierunek przyczynowości pozostaje dyskusyjny35

Przebudowa i usztywnienie ścian naczyń

Przebudowa i usztywnienie ścian naczyń jest istotnym elementem patofizjologii SVD:

  • Utrata i degeneracja komórek mięśni gładkich tętnic (SMCs) jest kluczową cechą SVD, a nie tylko końcową zmianą34
  • Przebudowa ściany naczynia i usztywnienie dużych tętnic mózgowych wydaje się być stałą cechą w różnych typach SVD34
  • Te defekty mogą wystąpić bardzo wcześnie w procesie chorobowym, nawet w kontekście normalnego ciśnienia krwi34

Różne formy i manifestacje choroby małych naczyń

Choroba małych naczyń może dotyczyć różnych układów i narządów, manifestując się w różnych formach klinicznych:

Mózgowa choroba małych naczyń

Mózgowa choroba małych naczyń (CSVD) jest najczęstszą formą SVD i odnosi się do grupy schorzeń, które dotyczą małych naczyń krwionośnych w mózgu:

  • CSVD jest najczęstszą przyczyną udaru mózgu naczyniowego i główną przyczyną demencji naczyniowej5
  • CSVD powoduje około 25% wszystkich ostrych udarów niedokrwiennych, głównie w formie zawału lakunarnego36
  • CSVD współistnieje z chorobą Alzheimera i demencją związaną z chorobą Alzheimera, może pogarszać wynik poznawczy i jest najczęstszą przyczyną demencji naczyniowej, przyczyniając się do około 50% przypadków demencji36

Wyróżnia się kilka subtypów CSVD, w tym:

  • Demencja naczyniowa podkorowa – uważana za najczęstszy typ demencji naczyniowej, spowodowana chorobami bardzo małych naczyń krwionośnych głęboko w mózgu (znana jako choroba małych naczyń)37
  • Demencja związana z udarem – może być spowodowana przez udar37
  • Demencja wielozawałowa – spowodowana serią mniejszych udarów37

Wieńcowa choroba małych naczyń

Wieńcowa choroba małych naczyń (CMD), znana również jako mikronaczyniowa choroba wieńcowa, dotyka małych tętnic w sercu:

  • CMD wpływa na mikrounaczynienie serca, uniemożliwiając dostarczanie krwi do tkanki sercowej4
  • W CMD uszkodzenie występuje w wewnętrznych ścianach małych naczyń, co może powodować skurcze, które zakłócają przepływ krwi do serca32
  • CMD może być spowodowana przez zmiany strukturalne, takie jak przebudowa naczyń i zwiększona grubość oraz przerost ścian tętnic obecne w kardiomiopatii przerostowej, zmiany funkcjonalne, takie jak dysfunkcja śródbłonka spowodowana uszkodzeniem oksydacyjnym, jak w przypadku palenia, oraz zmiany pozanaczyniowe, takie jak przerost lewej komory i wysokie ciśnienie w lewej komorze w wyniku stenozy aortalnej38

Inne formy choroby małych naczyń

SVD może również dotyczyć innych narządów i układów:

  • Retinopatia małych naczyń – zwyrodnienie siatkówki może przewidywać zaburzenia poznawcze, a choroba małych naczyń i nieprawidłowości mikronaczyniowe siatkówki są obecnie potwierdzone jako związane ze zwiększonym ryzykiem niewydolności nerek39
  • Nefropatia małych naczyń – SVD jest być może główną etiologią dysfunkcji nerek39
  • Choroba małych naczyń serca – SVD może przyczyniać się do niewydolności serca39
  • Nagła głuchota czuciowo-nerwowa – SVD zidentyfikowano jako możliwą przyczynę nagłej głuchoty czuciowo-nerwowej (SSNHL), a obecność SVD wpływała na czas trwania i nawroty SSNHL4041

Rola czynników genetycznych w chorobie małych naczyń

Badania genetyczne wykazały, że SVD ma wysoki stopień dziedziczności, szczególnie u pacjentów z udarem mózgu o wczesnym początku23. Chociaż większość przypadków SVD ma charakter sporadyczny, istnieją również formy dziedziczne:

Monogenowe formy CSVD

Odkryto kilka monogenowych form CSVD:

  • CADASIL (Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy) – spowodowana mutacją w genie NOTCH32420
  • CARASIL (Cerebral Autosomal Recessive Arteriopathy with Subcortical Infarcts and Leukoencephalopathy) – spowodowana mutacją w genie HTRA12420
  • CARASAL (Cathepsin A-Related Arteriopathy with Strokes and Leukoencephalopathy) – związana z arteriopatią związaną z katepsyną A24
  • HDLS (Hereditary Diffuse Leukoencephalopathy with Spheroids) – dziedziczna rozlana leukoencefalopatia z sferoidami24
  • SVD związana z COL4A1/2 – mutacje w genach COL4A1 i COL4A2, odpowiedzialnych za syntezę łańcuchów alfa kolagenu typu IV2422
  • Choroba Fabry’ego – dziedziczne zaburzenie metabolizmu glikosfingolipidów związane z chromosomem X24

Ciągłość między monogenową a wieloczynnikową SVD

Badania wykazały, że istnieje uderzająca ciągłość między monogenowymi a wieloczynnikowymi formami SVD:

  • Chociaż monogenowe SVD mają stanowić niewielką część (około 5%) wszystkich SVD, warianty genów NOTCH3, COL4A1/A2 i HTRA1 identyczne z tymi, które powodują monogenowe SVD, zostały niedawno stwierdzone z nieoczekiwanie wysoką częstością w populacji ogólnej i wykazano, że zwiększają ryzyko udaru lub demencji20
  • Powód, dla którego warianty tych genów są związane z tak szerokim spektrum fenotypowym, nie jest jeszcze w pełni zrozumiały20

Znaczenie badań genetycznych

Rozpoznanie genetycznego aspektu SVD może przyczynić się do poprawy diagnozy i leczenia tych rzadkich zaburzeń jednogenowych, a także sporadycznych SVD24:

  • Badania monogenowych form SVD, takich jak CADASIL, CARASIL, zaburzenia związane z COL4A1/2 i inne, dostarczyły kluczowych informacji na temat mechanizmów patofizjologicznych leżących u podstaw naczyniowego zaburzenia poznawczego i demencji (VCID)42
  • Najsilniejsze dowody na genetyczne ryzyko VCID pochodzą z szeregu monogenowych chorób wpływających na małe naczynia mózgowe42

Podsumowanie etiologii choroby małych naczyń

Choroba małych naczyń jest złożonym, wieloczynnikowym schorzeniem o heterogennej etiologii. Główne przyczyny i czynniki ryzyka SVD obejmują:

Zrozumienie złożonej etiologii SVD jest kluczowe dla opracowania skutecznych strategii prewencyjnych i terapeutycznych. Niestety, ze względu na heterogenną patogenezę SVD, nie ustalono jeszcze przyczynowych strategii terapeutycznych43. Wiele aspektów etiologii SVD pozostaje niejasnych i wymaga dalszych badań23.

Obiecujące jest to, że coraz więcej dowodów potwierdza, że zmiany patofizjologiczne, takie jak dysfunkcja śródbłonka, nieprawidłowości istoty białej i upośledzenie bariery krew-mózg, a także stan zapalny, są odpowiedzialne za etiologię SVD44. Lepsze zrozumienie tych mechanizmów może prowadzić do opracowania bardziej skutecznych interwencji dla osób z SVD.

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  1. 10.04.2026
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Materiały źródłowe

  • #1 Small Vessel Disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC6768982/
    Small vessel disease (SVD) refers to conditions where damage to arterioles and capillaries is predominant, leading to reduced, or interrupted perfusion of the affected organ. […] SVD is a major etiologic cause in debilitating conditions such as renal failure, blindness, lacunar infarcts, and dementia. […] The factors that lead to this devastating condition include all the known vascular risk factors when they are not strictly controlled, but lifestyles that include sedentary existence, obesity, and poor sleep patterns are also recognized drivers of SVD. […] Inflammation is a mediator of SVD, but it is not known which factor(s) predominate in its etiology. […] If brain imaging modalities reveal SVD, there is a high probability that the condition is also affecting in variable combinations the retina, the kidneys, the heart, the lungs, and the musculoskeletal system—in fact, every organ that is perfused at a high rate of flow.
  • #2 Microvascular Ischemic Disease: Definition and Symptoms
    https://www.healthline.com/health/microvascular-ischemic-disease
    Microvascular ischemic disease is a term thats used to describe changes to the small blood vessels in the brain. […] Small vessel ischemic disease is very common in older adults. […] The cause of microvascular ischemic disease isnt completely understood. It can be the result of plaque buildup and hardening (atherosclerosis) that damages the small blood vessels nourishing the brain. […] Risk factors for microvascular ischemic disease include: high blood pressure, high cholesterol, aging, smoking, diabetes, hardened arteries, atrial fibrillation. […] Ischemic small-vessel disease can be very serious, leading to stroke, dementia, and death if it isnt treated. It causes about 45 percent of dementia cases and 20 percent of strokes.
  • #3
    https://pmc.ncbi.nlm.nih.gov/articles/PMC9806465/
    Cerebral SVD is not a single disease but can be caused by diverse pathological processes. The two most common pathologies underlying SVD are arteriolosclerosis caused by aging, hypertension, and other conventional vascular risk factors, and cerebral amyloid angiopathy (CAA) caused by vascular deposition of -amyloid. […] CAA is an age-related SVD, affecting cortical and leptomeningeal vessels, and is characterized pathologically by progressive deposition of amyloid- in the cerebrovascular wall. CAA is the primary cause of lobar ICH and an independent contributor to age-associated cognitive impairment.810 […] Age-related non-amyloid SVD may also be heterogeneous. While diffuse arteriosclerosis affecting the small vessels is believed to play an important role, lacunar infarcts can also be caused by microatheroma at or near the origin of the perforating arteries. This was first suggested in seminal neuropathological studies by C. Miller Fisher in the 1960s,11 and is supported by different risk factor profiles,12 and more recently by direct visualization of the pathology in vivo using high-resolution 7T MRI.13,14
  • #4 Coronary Microvascular Disease (Small Vessel Disease): Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/21052-microvascular-coronary-disease
    Microvascular coronary disease affects tiny vessels that deliver blood to heart tissue. When these small blood vessels are damaged, they can spasm, decreasing blood flow to your heart. Microvascular coronary disease causes lasting chest pain and can raise your heart attack risk. […] Microvascular disease affects arteries that branch off from your hearts main blood vessels (coronary microvasculature). […] Coronary microvascular disease affects the microvasculature (small blood vessels that come off of the large blood vessels) and prevents blood from nourishing your heart tissue. It occurs due to blood vessel damage or malfunction of the small blood vessels, not plaque buildup. […] Small vessel disease is more likely to affect women than men. This is especially true in people with low estrogen levels, which occurs around menopause.
  • #5 Cerebral small vessel disease | Radiology Reference Article | Radiopaedia.org
    https://radiopaedia.org/articles/cerebral-small-vessel-disease?lang=us
    Cerebral small vessel disease, also known as cerebral microangiopathy, is an umbrella term for lesions in the brain attributed to pathology of small arteries, arterioles, capillaries, venules, or small veins. It is the most common cause of vascular dementia/cognitive impairment and is a major cause of ischemic and hemorrhagic strokes. […] Many aetiopathogenic types of small vessel disease are described. The most common is arteriolosclerosis, or age and vascular risk factor related small vessel disease, which based on a progressive clinical syndrome of cognitive impairment and compatible imaging features is diagnosed as Binswanger disease, although this term has fallen in popularity. […] There are several aetiopathogenic types of cerebral small vessel diseases: arteriolosclerosis (age-related and vascular risk factor-related small vessel disease), cerebral amyloid angiopathy (sporadic, familial, iatrogenic), inherited/genetic small vessel diseases other than cerebral amyloid angiopathy, inflammatory and immunologically mediated small vessel diseases (CNS vasculitis), venous collagenosis, and other small vessel diseases.
  • #6 Frontiers | Cerebral small vessel disease: Pathological mechanisms and potential therapeutic targets
    https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2022.961661/full
    Cerebral small vessel disease (CSVD) represents a diverse cluster of cerebrovascular diseases primarily affecting small arteries, capillaries, arterioles and venules. […] Still, due to the poor understanding of pathophysiology in CSVD, there is not an effective preventative or therapeutic approach for CSVD. […] In fact, the failure in achieving a breakthrough for CSVD treatment is primarily due to a poor understanding of its etiology. […] However, a subsequent study suggested that endothelial dysfunction is the key initiator for CSVD and its pathogenesis, predating BBB breakdown. […] Given the multifactorial and complex nature of CSVD, a better understanding of its pathogenesis would aid in the successful development of specific and effective interventions for CSVD. […] The current approach is management of vascular risk factors associated with CSVD including hypertension, smoking, diabetes, and hypercholesterolemia.
  • #7 Cerebral Small Vessel Disease: Causes & Symptoms
    https://www.vaia.com/en-us/explanations/medicine/neuroscience/cerebral-small-vessel-disease/
    Cerebral Small Vessel Disease (CSVD) refers to a group of conditions affecting the tiny blood vessels in the brain, often leading to strokes, cognitive decline, and dementia. […] Effective management of risk factors such as hypertension and diabetes is essential in mitigating the impact of CSVD on brain health. […] Age is one of the most significant risk factors for CSVD. As you age, blood vessels undergo natural changes that can predispose them to damage. This includes thickening of the vessel walls and a reduction in their elasticity, both of which can lead to altered blood flow and reduced capacity to deliver nutrients effectively. […] Hypertension, or high blood pressure, is another major contributor. It exerts increased force on the blood vessel walls, leading to damage over time.
  • #8 Understanding Chronic Small Vessel Ischemic Disease
    https://craftbodyscan.com/blog/chronic-small-vessel-ischemic-disease/
    Chronic small vessel ischemic disease may sound like a complex medical term, but at its heart, its about understanding how the health of tiny blood vessels in your brain can impact your overall well-being. This condition occurs when these small vessels become damaged or narrowed, reducing blood flow and leading to tissue damage. […] Aging is the most significant factor, but several other contributors can accelerate or worsen the damage to your brains small vessels: […] Hypertension (High Blood Pressure): High blood pressure puts extra stress on the walls of small vessels, causing them to weaken over time. […] Diabetes: Elevated blood sugar levels lead to inflammation and damage to blood vessel linings. […] Smoking: Smoking accelerates vascular aging and increases inflammation, making vessels more vulnerable to damage.
  • #9 Cerebral Small Vessel Disease: Causes & Symptoms
    https://www.vaia.com/en-us/explanations/medicine/neuroscience/cerebral-small-vessel-disease/
    Diabetes is also linked to CSVD due to its impact on blood vessels. High blood sugar levels can damage the small vessels through a process known as endothelial dysfunction. […] While lifestyle and health conditions play prominent roles in the development of CSVD, genetic predispositions can also contribute. Certain genes can affect your susceptibility to conditions that risk structural changes in blood vessels. […] Research into the causes of CSVD continues to evolve, with a growing interest in the interplay between lifestyle factors and genetics.
  • #10 Microangiopathy – Wikipedia
    https://en.wikipedia.org/wiki/Microangiopathy
    Microangiopathy (also known as microvascular disease, small vessel disease (SVD) or microvascular dysfunction) is a disease of the microvessels, small blood vessels in the microcirculation. […] Small vessel diseases (SVDs) affect primarily organs that receive significant portions of cardiac output such as the brain, the kidney, and the retina. Thus, SVDs are a major etiologic cause in debilitating conditions such as renal failure, blindness, lacunar infarcts, and dementia. […] The main target of small vessel diseases is the endothelium, which plays a key role in vascular homeostasis. […] The pathogenesis of SVDs in various organs is characterized by endothelial dysfunction, capillary rarefaction, microthrombi and microvascular remodeling. […] Diabetic microangiopathy, which is the most common cause of microangiopathy, is more prevalent in the kidney, retina and vascular endothelium since glucose transport in these sites isn’t regulated by insulin and these tissues cannot stop glucose from entering cells when blood sugar levels are high.
  • #11 Understanding Chronic Small Vessel Ischemic Disease
    https://craftbodyscan.com/blog/chronic-small-vessel-ischemic-disease/
    High Cholesterol: Cholesterol buildup can create blockages in these small vessels, reducing blood flow. […] Sedentary Lifestyle: Lack of exercise weakens overall cardiovascular health, including small vessels in the brain. […] Understanding these risk factors is the first step in reducing their impact.
  • #12 Small Vessel Disease: Understanding Its Impact on Heart Health – Longmore Clinic
    https://longmoreclinic.org/small-vessel-disease-understanding-its-impact-on-heart-health/
    Small vessel disease (SVD), also known as microvascular disease or coronary microvascular disease, is a condition that affects the small arteries in the heart. Its characterized by the narrowing or damage to these small blood vessels, which impairs blood flow and oxygen delivery to the heart muscle. This can cause symptoms similar to those of coronary artery disease (CAD), such as chest pain (angina). […] The exact cause of small vessel disease is not fully understood, but its believed to be related to factors that damage the endothelium, the inner lining of blood vessels. Potential causes and contributing factors include: High blood pressure, High cholesterol, Diabetes, Obesity, Inflammation, Smoking, Hormonal changes, particularly in women. […] Small vessel disease is a serious condition that can have a significant impact on heart health. Understanding the causes, risk factors, and symptoms is essential for early diagnosis and effective management.
  • #13 Small Vessel Disease: Symptoms, Causes, Diagnosis, and Treatments
    https://www.healthline.com/health/small-vessel-disease
    Coronary small vessel disease is a condition in which the walls of the small arteries in your heart the tiny branches off the larger coronary arteries are damaged and dont dilate properly. […] Small vessel disease occurs when the inside walls of the small vessels in your heart are damaged, affecting their ability to be able to properly dilate. […] This damage may be caused by: high blood pressure, high cholesterol, obesity, diabetes mellitus.
  • #14 Coronary Microvascular Disease | American Heart Association
    https://www.heart.org/en/health-topics/heart-attack/angina-chest-pain/coronary-microvascular-disease-mvd
    Coronary MVD affects the tiny blood vessels in the heart causing chest pain. Damage to the inner walls of these small blood vessels can cause spasms and reduced blood flow. […] The same risk factors that cause plaque buildup in arteries (atherosclerosis) can also lead to coronary MVD. […] Risk factors include: Unhealthy blood cholesterol levels, High blood pressure, Smoking, Diabetes, Overweight and obesity, Lack of physical activity, Unhealthy diet, Older age, especially among women who are experiencing menopause. […] Women with low estrogen levels may be at risk for coronary MVD. Low estrogen levels before menopause can raise younger women’s risk for coronary MVD. […] Women with high blood pressure before menopause are at higher risk for coronary MVD. Intense or irregular menopause symptoms can also increase the risk for heart disease. After menopause, women often have more risk factors for atherosclerosis, raising their risk for coronary MVD.
  • #15 Small Vessel Disease, a Marker of Brain Health: What the Radiologist Needs to Know | American Journal of Neuroradiology
    http://www.ajnr.org/content/43/5/650
    Small vessel disease, a disorder of cerebral microvessels, is an expanding epidemic and a common cause of stroke and dementia. […] The exact pathogenesis of SVD is incompletely understood, but the most common abnormalities are diffuse arteriolosclerosis, lipohyalinosis, and fibrinoid necrosis of small arterioles. […] There are different types and etiopathogenic classifications of SVD, with a proposed classification. Type 1, hypertensive arteriolosclerosis (HA), and type 2, cerebral amyloid angiopathy (CAA) are, by far, the most common sporadic types of SVD in older adults and the most radiologically well-established entities. […] Although most SVD is sporadic, likely related to hypertension or other vascular risk factors, a few forms are related to rare genetic diseases. […] The spectrum of SVD includes white matter hyperintensities (WMH) of presumed vascular origin, recent small subcortical infarcts, lacunes, microbleeds, superficial siderosis, prominent perivascular spaces, microinfarcts, and brain atrophy.
  • #16 Why cerebral small vessel disease is so important | Top Doctors
    https://www.topdoctors.co.uk/medical-articles/cerebral-small-vessel-disease-and-why-it-s-so-important
    Small vessel disease is the most common form of cerebrovascular disease, that is, blood vessel disease of the brain. Damaged small blood vessels in the brain can cause white matter lesions and other signs that are seen on brain scans. Small vessel disease is often caused by high blood pressure and diabetes mellitus, but there is a number of other causes. […] Small vessel disease causes around a quarter of all strokes. But stroke is the tip of the iceberg. Small vessel disease is also the second most common cause of dementia. And there are many more people with small vessel disease who will gradually develop problems such as difficulties with thinking or walking. […] Most cases will be due to vascular risk factors such as high blood pressure. But there are other conditions such as cerebral amyloid angiopathy, genetic disorders or other causes, which are often managed differently.
  • #17 Small Vessel Disease, a Marker of Brain Health: What the Radiologist Needs to Know | American Journal of Neuroradiology
    http://www.ajnr.org/content/43/5/650
    A systematic review of Asian studies reported that parent artery atherosclerosis resulted in 20% of single lacunar infarcts. […] Although hypertension is a key risk factor, many patients with SVD are not hypertensive. […] Recent studies suggest more complex mechanisms other than arteriolosclerosis that can cause capillary wall dysfunction. […] The deposition of lipids in arteriolar walls (microatheroma) can damage the endothelium, leading to leakage of plasma proteins and inflammatory cells into the perivascular tissues. […] The neurogliovascular unit has multiple possible entry points for disease mechanisms. […] The clinical significance of PVS remains unclear; a few studies have reported that PVS can be associated with an increased risk of dementia if located in the basal ganglia and white matter.
  • #18 Small Vessel Cerebrovascular Disease and Covert Cerebral Infarcts
    https://clinmedjournals.org/articles/jgmg/journal-of-geriatric-medicine-and-gerontology-jgmg-9-148.php?jid=jgmg
    Small vessel Cerebrovascular disease covers a range of conditions which can be picked up on brain imaging including white matter hyperintensities, lacunes, microhaemorrhages and enlarged periventricular spaces. It is caused by disease of the small vessels which perforate the brain and leads to 25% of ischaemic strokes and most haemorrhagic strokes in older patients. […] The basic pathology of small vessel disease is lipohyalinosis- in essence there is concentric hyaline thickening of the cerebral small blood vessels with loss of the elastic lamina of the vessel walls. This leads to their occlusion which in turn leads to microinfarcts as they are end arteries, it can also cause rupture causing microbleeds. The small vessels of the brain are the perforators which arise from the proximal middle cerebral arteries, posterior cerebral arteries and the brain stem perforators of the vertebral and basilar arteries. Lacunar infarcts may be caused by small vessel disease or atheromatous clots from the larger vessels they branch off from. The exact cause of lipohyalinosis is not known, as it is not atherosclerotic as in the majority of larger vessel disease different treatment approaches need to be considered.
  • #19
    https://advances.umw.edu.pl/en/article/2021/30/3/349/
    Cerebral small vessel disease (CSVD) is the most common, chronic and progressive vascular disease. […] Common causes of CSVD include arteriosclerosis, cerebral amyloid angiopathy (CAA), genetic small vessel angiopathy, inflammation and immune-mediated small vessel diseases, and venous collagenosis. […] In most cases, CSVD is sporadic; its occurrence is associated mainly with age and commonly known risk factors for vascular diseases, mainly hypertension and diabetes mellitus. […] Cerebral amyloid angiopathy (CAA), a form of CSVD, is the 2nd most common cause of cerebral hemorrhage, after hypertension. […] The most common genetically determined disease characterized by involvement of small vessels is cerebral autosomal-dominant arteriopathy with stroke and ischemic leukoencephalopathy (CADASIL).
  • #20
    https://www.jci.org/articles/view/172841
    In recent years, increasing numbers of genes have been associated with cSVDs. […] Notably, mutations in four genes NOTCH3, HTRA1, COL4A1, and COL4A2 account for the vast majority of monogenic adult-onset cSVDs. […] Although monogenic cSVDs are thought to account for a small proportion (~5%) of cSVDs, variants in NOTCH3, COL4A1/A2, and HTRA1 genes identical to those that cause monogenic cSVDs were recently found to be present at an unexpectedly high frequency in the general population and shown to increase the risk of stroke or dementia. […] The reason variants in these genes are associated with so broad a phenotypic spectrum is not yet fully understood. […] In summary, these studies highlight a striking continuum between monogenic and multifactorial cSVDs. […] Establishing the nature of structural and functional changes in brain vessels in cSVDs and the sequence and timeline linking these changes to brain lesions and clinical symptoms is fundamental to understanding the pathobiology of these complex diseases.
  • #20
    https://www.jci.org/articles/view/172841
    Cerebral small vessel disease (cSVD) encompasses a heterogeneous group of age-related small vessel pathologies that affect multiple regions. […] cSVDs are commonly classified into sporadic and hereditary cerebral amyloid angiopathy (CAA) and cSVD distinct from CAA. […] cSVDs are primarily defined by their hallmark features on brain MRI, including white matter (WM) hyperintensities (WMHs), small subcortical infarcts or lacunes, visible perivascular spaces (PVSs), microbleeds, intracerebral hemorrhage (ICH), and brain atrophy. […] cSVDs are thought to progress silently for many years before becoming clinically symptomatic, a conclusion supported by the natural history of monogenic forms that are largely indistinguishable from sporadic cSVDs. […] One major reason for this lack of treatment options is the complex multifactorial roots of cSVDs, which go well beyond blood clotting and vessel rupture.
  • #21
    https://advances.umw.edu.pl/en/article/2021/30/3/349/
    A similar condition is cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy (CARASIL), more common in Asian regions. […] Changes with respect to COL4A1 and COL4A2 genes responsible for the synthesis of type IV collagen alpha chains and associated with microangiopathies may be sporadic or genetically determined. […] Mutations in the TREX-1 gene may result in Aicardi-Goutires syndrome, systemic and cutaneous lupus erythematosus, and retinal vasculopathy with cerebral leukodystrophy (RVCL). […] One of the most common mitochondrial diseases mitochondrial encephalopathy with lactic acidosis and stroke-like episodes (MELAS) is also associated with involvement of small vessels. […] In the case of Fabry disease, which is an X-linked inherited disorder of glycosphingolipid metabolism, strokes are observed.
  • #22 COL4A1-related brain small-vessel disease: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/col4a1-related-brain-small-vessel-disease/
    COL4A1-related brain small-vessel disease is part of a group of conditions called the COL4A1-related disorders. […] As the name suggests, mutations in the COL4A1 gene cause COL4A1-related brain small vessel disease. […] The COL4A1 gene mutations that cause COL4A1-related brain small-vessel disease result in the production of a protein that disrupts the structure of type IV collagen. […] In people with COL4A1-related brain small-vessel disease, the vasculature in the brain weakens, which can lead to blood vessel breakage and stroke.
  • #23 Genetic Factors of Cerebral Small Vessel Disease and Their Potential Clinical Outcome
    https://www.mdpi.com/1422-0067/20/17/4298
    Cerebral small vessel diseases (SVD) have been causally correlated with ischemic strokes, leading to cognitive decline and vascular dementia. […] Currently, the causes of the majority of cerebral SVD are not well understood, which could limit effective treatment. Several traditional risk factors have been suggested to play important roles in the mechanisms and etiology of cerebral SVD. […] Genetic studies of sporadic cerebral SVD have demonstrated a high degree of heritability, particularly among patients with young-onset stroke. […] Common genetic variants in monogenic disease may contribute to pathological progress in several cerebral SVD subtypes, revealing distinct genetic mechanisms in different subtype of SVD. […] Genetic disorders could be based on the combination of mutations in a single gene or on a cluster of genes with an autosomal dominant or recessive pattern.
  • #24 Genetic Factors of Cerebral Small Vessel Disease and Their Potential Clinical Outcome
    https://www.mdpi.com/1422-0067/20/17/4298
    The estimated heritability for cerebral white matter lesions as a surrogate marker of cerebral SVD ranged between 50% and 80%. […] Although the majority of cerebral SVD cases were sporadic, several reports of inherited forms of cerebral SVD pointed to single-gene disorders. […] Different monogenic cerebral SVD were discovered, including cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy (CARASIL), cathepsin A-related arteriopathy with strokes and leukoencephalopathy (CARASAL), hereditary diffuse leukoencephalopathy with spheroids (HDLS), COL4A1/2-related cerebral SVD, and Fabry disease. […] The recognition of the genetic aspect of cerebral SVD could contribute to the improved diagnosis and treatment of these rare single-gene disorders, as well as sporadic cerebral SVD.
  • #25 Small Vessel Disease I Ohio State Medical Center
    https://wexnermedical.osu.edu/heart-vascular/cardiology/small-vessel-disease
    Small vessel disease occurs when the heart’s small arteries narrow. […] Risk factors for small vessel disease include: Tobacco use, Diabetes, A sedentary lifestyle, Insulin resistance, Obesity, High cholesterol, High blood pressure, Estrogen deficiency in women. […] Researchers believe women are more likely than men to develop small vessel disease. Patients with diabetes are also known to develop small vessel disease. […] Small vessel disease is treated with medication to halt narrowing of the small blood vessels.
  • #26 Small-Vessel Vasculitis – Rheumatology Advisor
    https://www.rheumatologyadvisor.com/ddi/small-vessel-vasculitis/
    Precisely what causes small-vessel vasculitis is not fully understood. It can be triggered by an allergic reaction to a drug or food, or an infection such as an upper respiratory tract infection or virus (eg, hepatitis B or C, or HIV), and rarely, cancer. The main drugs linked to an increased risk for small-vessel vasculitis include penicillin, cephalosporins, sulfonamides (including most loop and thiazide-type diuretics), phenytoin, and allopurinol. […] The initial management of small-vessel vasculitis involves addressing the agent that precipitated the disease. Patients may need to stop taking the medication, avoid the food allergen, or treat the underlying infection that caused the small-vessel vasculitis.
  • #27 Cutaneous small vessel vasculitis
    https://dermnetnz.org/topics/cutaneous-small-vessel-vasculitis
    Examples of infections associated with cutaneous small vessel vasculitis include: Bacterial infection: Streptococcus pyogenes, bacterial endocarditis. […] Cancer is found in fewer than 5% of patients with cutaneous small vessel vasculitis. […] Autoimmune disorders such as systemic lupus erythematosus (SLE), dermatomyositis, and rheumatoid arthritis are characterised by circulating antibodies that target the individual’s tissues. Some of these antibodies can target blood vessels, resulting in vasculitis.
  • #28 Microvascular Ischemic Disease: Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/22927-microvascular-ischemic-disease
    Microvascular ischemic disease has many names, such as: Cerebral small vessel disease (CSVD). […] Microvascular disease results in narrowing of small blood vessels from wall thickening and plaque build-up. Experts aren’t exactly sure what causes microvascular ischemic disease. There are many contributing factors. […] Advanced age is the main risk factor. But these health issues also increase your risk for developing microvascular ischemic disease: Chronic kidney disease. […] Microvascular ischemic disease is a very common condition in older people. According to estimates, it causes 45% of dementia and 25% of strokes.
  • #29 Microangiopathy – Wikipedia
    https://en.wikipedia.org/wiki/Microangiopathy
    Among all biochemical mechanisms involved in diabetic vascular damage such as the polyol pathway and the reninangiotensin system (RAS), the advanced glycation end products (AGEs) pathway appears to be the most important in the pathogenesis and progression of microvascular complications. […] Chronic high blood sugar levels lead to the attachment of sugar molecules to various proteins, including collagen, laminin, and peripheral nerve proteins. […] This process, called glycosylation, creates advanced glycation end products (AGEs). AGEs formation cross-links these proteins, making them resistant to degradation. […] This leads to accumulation of AGEs, thickening of the basement membrane, narrowing the blood vessels, reducing blood flow to the tissues and causing ischemic injury. […] In addition, oxidative stress, caused by AGEs and the other pathways, causes apoptosis of pericytes and podocytes in the retina and the kidneys respectively leading to capillary wall fragility and increased vascular leakage.
  • #30 Pathophysiology and probable etiology of cerebral small vessel disease in vascular dementia and Alzheimer’s disease | Molecular Neurodegeneration | Full Text
    https://molecularneurodegeneration.biomedcentral.com/articles/10.1186/s13024-023-00640-5
    VCID is associated with heterogeneous pathological conditions in the cerebrovascular system, where cerebral small vessel disease (cSVD) is the most common pathology underlying VCID. […] In particular, vessel wall structure from leptomeningeal arteries and intraparenchymal arterioles (perforating arterioles and precapillary arterioles), capillaries, and venules often pathologically deteriorate. […] We also discuss probable etiology of cSVD as well as therapeutic strategies. […] The etiological mechanisms of cSVD can be summarized in the following four pathways: 1) hypoperfusion/hypoxia, 2) BBB dysregulation, 3) ISF/CSF drainage disturbances, and 4) vascular inflammation. […] Each of them is predicted to contribute independently and interactively to cSVD pathogenesis.
  • #31 Small vessel disease – International Heart Spasms Alliance
    https://www.internationalheartspasmsalliance.org/small-vessel-disease/
    Small vessel disease is a condition in which the walls of the small arteries in the heart are damaged. […] Experts suspect that the causes of small vessel disease are the same as the causes for disease of the larger vessels of the heart, such as high blood pressure, high cholesterol, obesity and diabetes. […] In small vessel disease, damage to the small vessels affects their ability to expand (endothelial dysfunction). As a result, your heart doesn’t get enough oxygen-rich blood.
  • #32 Coronary Microvascular Disease (Small Vessel Disease): Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/21052-microvascular-coronary-disease
    The condition affects the smooth muscle function of your hearts smallest arteries. In a healthy heart, these muscles narrow and widen to keep up with your hearts changing needs. With coronary microvascular disease, damage occurs to the inner walls of small vessels. This damage can cause spasms that disrupt blood flow to your heart. […] Coronary microvascular disease happens when theres a disruption of blood flow through the hearts smallest blood vessels. Unlike coronary artery disease, which is due to a blockage, microvascular heart disease (small vessel disease) occurs when theres blood vessel damage. The condition causes lasting chest pain and raises your heart attack risk.
  • #33 Asymptomatic Cerebral Small Vessel Disease: Insights from Population-Based Studies
    https://www.j-stroke.org/journal/view.php?doi=10.5853/jos.2018.03608
    Cerebral small vessel disease (CSVD) is a common group of neurological conditions that confer a significant burden of morbidity and mortality worldwide. […] In most cases, CSVD is only recognized in its advanced stages once its symptomatic sequelae develop. […] However, its significance in asymptomatic healthy populations remains poorly defined. […] While the presence of these imaging markers may reflect unique mechanisms at play, there are likely shared pathways underlying CSVD. […] The implications of this on CSVD is not well understood but may be a balance between small vessel arteriopathy and neural repair processes. […] Hypertension and other vascular risk factors are believed to be the primary culprits of this entity as we will see from several epidemiological studies. […] The burden of these CMI can be formidable, with estimates suggesting hundreds to thousands of infarcts in a single brain.
  • #34
    https://www.jci.org/articles/view/172841
    Loss and degeneration of arterial SMCs, which is often overlooked, is a key feature of cSVDs and not just an end-stage lesion. […] In summary, vessel wall remodeling and stiffening of large brain arteries appears to be a consistent feature across cSVDs, and these defects can occur very early in the disease process, even in a context of normal BP. […] In summary, chronic hypoperfusion is an indisputable feature in both cSVD mouse models and patients, whether it is a cause or consequence of brain damage and whether brain hypoperfusion contributes to disease manifestations remain unclear. […] In summary, deterioration of NVC is a recurrent theme in mouse models of sporadic and genetic cSVDs. […] Emerging evidence suggests that the glymphatic system is compromised in cSVD and that impaired CSF/ISF dynamics may participate in the pathogenesis, but this warrants further studies.
  • #35 Frontiers | Cerebral small vessel disease: Pathological mechanisms and potential therapeutic targets
    https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2022.961661/full
    Evidence that impairment of BBB is a key contributing component of CSVD pathogenesis is accumulating. […] With regard to possible causes of BBB disruption in CSVD, several potential mechanisms have been proposed. […] The impaired BBB may cause an increase in interstitial fluid and the resulting perivascular edema can intoxicate brain cells. […] Although evidence supports BBB breakdown playing a pivotal role in WMH formation, it is important to note that the BBB can remain intact in patients with WMHs. […] The relationship between inflammation and BBB impairment is well-documented; however, the direction of causality remains debatable. […] Hypertension and advanced age are well-known epidemiologic risk factors for CSVD. […] Inflammaging is increasingly considered a risk factor for CSVD, especially for age-related CSVD.
  • #36 Small Vessel Disease, a Marker of Brain Health: What the Radiologist Needs to Know | American Journal of Neuroradiology
    http://www.ajnr.org/content/43/5/650
    SVD causes approximately 25% of all acute ischemic strokes, mainly in the form of lacunar infarction. […] SVD coexists with Alzheimer disease and Alzheimer disease-related dementia, can worsen cognitive outcome, and is the most common cause of vascular dementia, contributing to about 50% of dementias.
  • #37 Types of vascular dementia | Alzheimer’s Society
    https://www.alzheimers.org.uk/about-dementia/types-dementia/types-of-vascular-dementia
    Subcortical vascular dementia is thought to be the most common type of vascular dementia. […] It is caused by diseases of the very small blood vessels that lie deep in the brain (known as small vessel disease). […] Vascular dementia caused by small vessel disease happens slowly and gradually over time. […] Stroke-related dementia can also be caused by a stroke. […] Multi-infarct dementia is caused by a series of smaller strokes. […] If a person has several smaller strokes over time, multiple infarcts will build up in their brain.
  • #38 Microangiopathy – Wikipedia
    https://en.wikipedia.org/wiki/Microangiopathy
    Some researchers have suggested that SVD may be a multisystem disorder, meaning that it can affect multiple organs in the body, including the heart and brain. […] Coronary microvascular diseases (CMDs) can be caused by: Structural changes, such as vascular remodeling and increased thickness and hypertrophy of arterial walls present in hypertrophic cardiomyopathy. […] Functional changes, such as endothelial dysfunction caused by oxidative damage as in smoking. […] Extravascular changes, such as left ventricular hypertrophy and high left ventricular pressure as a result of aortic stenosis (AS). […] On the other hand, Cerebral SVD encompasses a range of vascular pathologies including arteriosclerosis-related CSVD, where lipohyalinosis causes stenosis of the lumen of the arterioles and amyloid-related CSVD, characterized by the build-up of -amyloid deposits in small- and medium-caliber cerebral vessels.
  • #39 Small Vessel Disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC6768982/
    Thus, it was reported recently that retinal neurodegeneration can predict cognitive impairment, and small vessel disease as well as retinal microvascular abnormalities are now confirmed to be associated with an increased risk of renal failure. […] Consequently, in addition to damaging the brain, SVD is perhaps the main etiology for blindness, renal dysfunction, and cardiac insufficiency, making it the etiology for major medical, and neurological conditions.
  • #40 Importance of small vessel disease as a possible cause of sudden sensorineural hearing loss | PLOS One
    https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302447
    Vascular disease like small-vessel disease (SVD) is the most likely cause among the potential causes of Sudden sensorineural hearing loss (SSNHL). […] Understanding the relationship between SVD and SSNHL is crucial for developing effective prevention and treatment strategies. […] The study identified SVD as a possible cause of SSNHL and found that the duration of SSNHL increased only in the presence of SVD. […] SVD also affected the recurrence of SSNHL, with the recurrence rate being 1.312 times higher in the group with SVD. […] Although the exact pathophysiology of SSNHL has not yet been elucidated, understanding the relationship between SVD and SSNHL is crucial for developing effective prevention and treatment strategies. […] SVD has been linked to several other diseases that share characteristics with SSNHL, including stroke and dementia.
  • #41 Importance of small vessel disease as a possible cause of sudden sensorineural hearing loss | PLOS One
    https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302447
    The clinical implications of the association between SVD and SSNHL are significant, as they suggest that prevention, early detection, and treatment of vascular risk factors may help reduce the risk of SSNHL. […] We identified SVD as a possible cause of SSNHL. […] The findings highlight the intricate relationship between SVD and SSNHL, emphasizing the potential impact of vascular factors on SSNHL duration and recurrence.
  • #42
    https://journals.lww.com/co-psychiatry/fulltext/2025/03000/monogenic_causes_of_cerebral_small_vessel_disease_.6.aspx
    It is widely accepted that conditions which disrupt the cerebral small vessels contribute to vascular pathologies including stroke and cerebral microbleeds, ultimately leading to vascular cognitive impairment and dementia. […] The most robust evidence for genetic risk of VCID is derived from a range of monogenic conditions affecting the cerebral small vessels. […] Given the frequency of cognitive impairment in monogenic cSVDs, these conditions have enabled insights into the pathophysiological processes involved in cSVD and VCID. […] Investigating monogenic forms of cSVD such as CADASIL, CARASIL, COL4A1/2-related disorders and others, has provided critical insights into the pathophysiological mechanisms underpinning VCID.
  • #43 Pathophysiology and probable etiology of cerebral small vessel disease in vascular dementia and Alzheimer’s disease | Molecular Neurodegeneration | Full Text
    https://molecularneurodegeneration.biomedcentral.com/articles/10.1186/s13024-023-00640-5
    Vascular cognitive impairment and dementia (VCID) is commonly caused by vascular injuries in cerebral large and small vessels and is a key driver of age-related cognitive decline. […] In VCID, cerebral small vessel disease (cSVD) often affects arterioles, capillaries, and venules, where arteriolosclerosis and cerebral amyloid angiopathy (CAA) are major pathologies. […] However, causal therapeutic strategies have not been established partly due to the heterogeneous pathogenesis of cSVD. […] In this review, we summarize the pathophysiology of cSVD and discuss the probable etiological pathways by focusing on hypoperfusion/hypoxia, blood-brain barriers (BBB) dysregulation, brain fluid drainage disturbances, and vascular inflammation to define potential diagnostic and therapeutic targets for cSVD.
  • #44 Frontiers | Cerebral small vessel disease: Pathological mechanisms and potential therapeutic targets
    https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2022.961661/full
    The incomplete understanding of pathogenesis is a major reason for the lack of more specific preventive and therapeutic strategies for CSVD. […] Encouragingly, accumulating evidence supports pathophysiological changes such as endothelial dysfunction, white matter abnormality, and BBB impairment, as well as inflammation, are responsible for CSVD etiology.