#WeekendLecture
#ESUS
In most studies ~25% of ischemic stroke are classified as #cryptogenic
In 2014 the Embolic Stroke of Undetermined Source clinical construct was introduced, as a subset from cryptogenics
Criteria & diagnostic assessment were proposed

thelancet.com/journals/laneu… ImageImage
#WeekendLecture
#ESUS

Although a long list of causes was described, covert AF was conceived as perhaps the most important underlying mechanism
It was hypothesized that oral #anticoagulation may⏬ the risk of stroke recurence in #ESUS Image
#WeekendLecture
#ESUS

A systematic review in 2017 (from several authors of the pivotal paper) showed:
👉Frequency: 17% (9-25%) of IS
👉Mean age: 65
👉Recurrence: 4.5% per year
👉Younger, lower freq of vascular RFs and milder stroke vs non-ESUS IS

ahajournals.org/doi/10.1161/st… Image
#WeekendLecture
#ESUS

Benefits from #anticoagulation hypothesis was studied in 2 RCT
👉#NAVIGATE_ESUS 2018
nejm.org/doi/10.1056/NE…
👉#RESPECT_ESUS 2019
nejm.org/doi/10.1056/NE…

☝️Oral anticoagulation was not associated with lower rates of stroke recurrence compared with aspirin ImageImage
#WeekendLecture
#ESUS

Researchers have been highlighting other possible #ESUS etiologies, relationship with AF, & subanalysis trying to identify pts who could benefit from specific therapies
ie:
Carotid Plaques n.neurology.org/content/92/23/…
Atrial Cardiopathy
onlinelibrary.wiley.com/doi/10.1002/br… Image
#WeekendLecture
#ESUS

Currently #ongoing RCTs are using more strict criteria, recruiting subgroups that may respond better to anticoagulation
👉#ARCADIA
journals.sagepub.com/doi/abs/10.117…
👉#ATTICUS journals.sagepub.com/doi/abs/10.117… ImageImage
#WeekendLecture
#ESUS

Recently, a group of experts made a "reexamination" of #ESUS construct, and proposed to #refine its definition, based on current evidence, ie, from #longterm monitoring, imaging, #atrial cardiopathy.

👉ahajournals.org/doi/10.1161/ST…
#WeekendLecture
#ESUS

If you want to go deeper in #ESUS we suggest you to read this 2 reviews
👉From @hoomankamel co-PI from ARCADIA, via @JAMANeuro
jamanetwork.com/journals/jaman…
👉From @GeorgeNtaios from NAVIGATE via @JACCJournals
sciencedirect.com/science/articl…

Thank you!!
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More from @WorldStrokeEd

1 Aug
#WeekendLecture
#PregnancyAndStroke

#Pregnancy and #puerperium confer an ⬆️ risk for ischemic as well as hemorrhagic stroke, with incidence rates being 3-fold higher as compared with nonpregnant women

👉doi.org/10.1016/j.ncl.…

a short 🧵 Image
#WeekendLecture
#PregnancyAndStroke

@DrRickSwartz @patrice_lindsay et al metaanalysis
👉11 studies
👉>85 million #pregnancy and #postpartum admissions in various countries
👉overall incidence of #stroke was 30 per 100,000 hospitalizations👈
@IntJStroke

journals.sagepub.com/doi/10.1177/17… ImageImage
#WeekendLecture
#PregnancyAndStroke
RFs:
☑️Age, >40yo OR3.1
☑️Race/ethnicity
☑️Migraine, thrombophilia, SLE, 🫀disease, HTN, thrombocytopenia, diabetes
☑️Pregnancy complications
✅For hemorrhagic stroke: aneurysms, AVM, Hypertensive Disorders of Pregnancy

journals.lww.com/greenjournal/F… ImageImage
Read 12 tweets
18 Jul
#WeekendLecture
#CerebralMicrobleeds #CMB

Radiological construct: small (2–10 mm diameter) round or ovoid #hypointense foci with associated #blooming with enhanced visibility on #MRI sequences sensitive to #susceptibility effects

thelancet.com/journals/laneu… ImageImage
#WeekendLecture
#CMB
🔬#Pathology: recent or old microhaemorrhages
🩸Microvessel injuries, ie: dilatation/fragmentation of the wall, amyloid-ß (in CAA) and fibrin extravasation
🩸Extravasation of red blood cells
🩸#hemosiderin-laden macrophages
karger.com/Article/FullTe… ImageImage
#WeekendLecture

In daily practice #CMB represents a radiological marker of #small vessel disease

In general:
🩸Strictly #lobar CMBs👉CAA
🩸Strictly #deep👉hypertension-related SVD ie #arteriolosclerosis
🩸Mixed 👉combination👆, but must think #hereditary #SVD, ie #CADASIL Image
Read 8 tweets
12 Jul
This is a very late #WeekendLecture
but you can review it anytime you want😉
🧠#Aneurysm & #Subarachnoid Hemorrhage
Unruptured intracranial aneurysms are pathologic dilations at major branching brain arteries
~3% of adult population
nejm.org/doi/full/10.10…
thelancet.com/journals/lance… Image
#WeekendLecture
#Aneurysms & #SAH
The most common presentation of intracranial aneurysm is rupture leading to #SAH
The risk of rupture depends on patient and aneurysm related factor, ie: age/gender/location/size/growth, etc
🧠ahajournals.org/doi/10.1161/ST…
🧠journals.lww.com/continuum/Abst… Image
#WeekendLecture
#Aneurysms & #SAH
It is well known that endovascular or neurosurgical management of #unruptured intracranial aneurysm is not free of procedural #complications
This study investigates risk factors for this complications @JAMANeuro
👇
jamanetwork.com/journals/jaman… ImageImage
Read 10 tweets

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