Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ADAMS > Stroke > Flashcards

Stroke Flashcards

1
Q

stroke is the ____ most common cause of death in the US

A

3rd

after heart disease and cancer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Most important modifiable risk factors for stroke (5)

A 
hypertension
AF
DM
cigarette smoking
hyperlipidemia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

AF increases risk of stroke by

A

6x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

RHD increases risk of stroke by

A

18x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Diabetes increases stroke compared to nondiabetics by

A

2x as much

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

in the case of CAD, the level of ___ has the most impact on the incidence of stroke

A

LDL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

characteristic of atherothrombotic vs cardioembolic stroke is the occurrence during sleep

A

atherothrombotic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

preferential location of atheromatous plaques (IVMPA) (5)

A

(1) in the internal carotid artety; at its origin from the common carotid;
(2) in the cervical part of the vertebral arteries and at their junction to form the basilarartery;
(3) in the stem or at the main bifurcation of the middle
cerebral arteries;
(4) in the proximal posterior cerebral arteries as they wind around the midbrain; and
(5) in the proximalanterior cerebral arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Most typical sign of CVD

A

hemiplegia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

For embolic strokes, the most important risk factors are (2)

A

structural cardiac disease and arrhythmias (AF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

TIAs are generally cosidered as more closley aligned with

embolic or atherothrombotic stroke

A

atherothrombotic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

True or False

It is unusual for the cerebellar and ophthalmic arteries to show atheromatous involvement

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

It is high degree of stenosis usually above ____ % of the original lumen compromised or a residual lumen of less than approximately __mm of the carotid artery that is most likely to be associated with strokes in the distal territory of the vessel

A

90% and less than 2mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

CHADS2

A 
Congestive Heart Failure
Hypertension
Age (<65,0; 65-74,1; >75,2)
Vascular disease 1
Diabetes
Female
Stroke or TIA (2)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

CHA2DS2-VASC

A 
Congestive Heart Failure - 1
Hypertension - 1 
Age (<65=0; 65-74=1; >75=2)
Diabetes - 1
Stroke or TIA  - 2
Coronary or peripheral vascular disease - 1
Female - 1
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How many percent of infarcts that follow TIAs occur within a month? how many percent within a year?

A

20% of infarcts that follow TIAs occur within a month

50% within a year

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

True of False

Blindness in amaurosis fugax or TMB is painless

A

True

p787

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Vascular factors in Ischemic infarcts

Anastomosis in occlusion of ICA (neck) via _____ (1)

Occlusion of vertebral artery
_____________(3)

A

ICA - from the ECA via ophthalmic artery

vertebral artery - anastomotic vessels via deep cervical, thyrocervical, or occipital arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Over a range of mean
blood pressures of approximately ____ to ____ mm Hg, the small pial vessels are able to dilate and to constrict in order to maintain cerebral blood flow (CBF) in a relatively narrow range.

A

50 to 150 mm Hg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

CBF in which it causes infarction regardless of duration

A

10-12ml/100g/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

critical level of hypoperfusion that abolishes function and leads to tissue damage

A

12-23ml/100g/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Changes at the previously mentioned critical level of hypoperfusion

A

EEG changes: slow and isoelectric
K - increases
ATP - depleted

reversible if circulation is quickly restored

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Temperature and reduction of metabolic requirements

reduction of 2 to 3C reduces metabolic requirements of neurons and increases tolerance to hypoxia by ____%

A

25 to 30%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Stroke Trial ATC

A

Antiplatelet Trialists’ Collaboration

pts with symptomatic atherosclerosis on ASA 50-1500mg/day
23% odds reduction in the composite outcome of MI, vascular death, stroke

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Stroke Trial CATS

A

Canadian American Ticlopidine Study
pts with thromboembolic strokes were randomized to ticlopidine 250mg BID vs placebo

ticlopidine reduces the risk of composite outcome of MI, stroke and vascular death by 30%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Stroke Trial TASS

A

Ticlopidine Aspirin Stroke Study

pts with recent TIA or ischemic stroke were randomized to ticlopidine 250mg BID vs ASA 1300mg/d

Ticlopidine reduced the risk of stroke or death at 3 years by 12% relative to ASA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Stroke Trial CAPRIE

A

Clopidogrel versus ASA at Risk of Ischemic Events

clopidogrel showed slightly reduced vascular complications rates compared to ASA, driven mostly by reductions in the rate of vascular complications in PAD pts

primary outcome: composite cluster of ischemic stroke MI vascular death
borderline clinical signiifcance RR 8.7% clopid vs ASA
with h/o PAD: RR 23.8%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Stroke Trial MATCH

A

Management of Atherothrombosis with Clopidogrel in High Risk Patients with TIA or Stroke

Aspirin and clopidogrel compared with clopidogrel alone after recent ischemic stroke or TIA in high risk patients

SA 75mg + clopid 75mg is no more effective than clopid 75 for secondary prevention of vascular complications with a siginificant higher risk of major and minor bleeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Stroke Trial CHARISMA

A

Clopidogrel for High Atherothrombotic Risk and Ischemic Stabilization Management and Avoidance

(Clopidogrel and ASA vs ASA alone for the prevention of Atherothrombotic events

Clopidogrel +ASA is not superior to ASA for preventing vascular complications and death, but may be considered in pts with symptomatic atherothrombosis. that is offset by a nonsignificant absolute risk increase of 0.4% for sever bleeding especially in those multiple vascular risk factors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Stroke Trial SPS3

A

Secondary Prevention of Small Subcortical Strokes 3

pts with lacunar infarcts within 180 days were randomized to clopid 75+ASA 325mg vs ASA 325 mg

ffup of 3.4 yrs rate of recurrent stroke was not significantly different between groups

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Stroke Trial CSPS

A

Cilostazol Stroke Prevention Study
pts with cerebral infarctions in the past 6 months were randomized to cilostazol 100mg BID vs placebo

reduction of recurrent ischemic stroke in cilostazol group by 41.7%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Stroke Trial TOSS 1

A

Trial of Cilostazol in Symptomatic Intracranial Arterial Stenosis

progression of symptomatic intracranial stenosis by MRA was significantly lower with cilostazol and ASA compared with ASA alone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Stroke Trial CSPS 2

A

Cilostazol Stroke Prevention Study 2

pts with cerebral infarctions were randomized to cilostazol 100mg BID vs ASA 81mg

primary outcome of non-inferiority
hemorrhagic events occurred less but headache, tachycardia and diarrhea were more frequent in cilostazol group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Stroke TOSS 2

A

Trial of Cilostazol in Symptomatic Intracranial Arterial Stenosis

pts with acute ischemic stroke within 2 weekssecondary to stenosis of MCA and basilar artery were randomized to cilostazol 100mg BID + asa vs Clopid + ASA

no significant difference in the rate of progression between groups

less hemorrhagic complications seen in cilostzol treated grp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Stroke Trial ESPS 1

A

European Stroke Prevention Study 1

pts with ischemic strokes were randomized to dipyridamole + ASA vs placebo

combination DP + ASA reduces the risk of stroke and detah by 33%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Stroke Trial ESPS 2

A

European Stroke Prevention Study 2

Dipyridamole and ASA in the secondary prevention of stroke

ASA 25 mg BID and dipyridamole 400mg in a modified realease form at a dose 200 mg twice daily have each been shown to be equally effective for the secondary prevention of ischemic stroke and TIA compared to placebo and the combination of the two is superior to either agent alone with no significant increase in death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Stroke Trial ESPRIT

A

European/Australasian Stroke Prevention in Reversible Ischemia Trial

Aspirin plus Dipyridamole versus Aspirin Alone after Cerebral Ischemic of Arterial Origin (ESPRIT)

Aspirin 30 -325 mg plus dipyridamole220 mg bid compared to ASpirin monotherapy significantly lowers the incidence of stroke, MI, death, from vascular causes and major bleeds and is equally safe in pts with h/o of ischemic stroke or TIA in the last 6 months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Stroke Trial PROFESS

A

Prevention Regimen for Effectively Avoiding Second Stroke

Although telmisartan reduces mena BP in recurrent stroke pts, it does not affect disability or cognitive dysfunction at 30 months compared to placebo
ASA + dipyridamole vs clopidogrel cofers no similar benefits, but significantly increases major hemorrhagic complications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Stroke Trial TACIP

A

Triflusal Aspirin Cerebral Infarction Prevention

pts with tia or ischemic strokes
triflusal 600mg/day vs ASA 325

similar efficacy between groups in in combined endpoint of stroke,MI and vascular death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Stroke Trial TAPIRSS

A

Triflusal versus Aspirin in the Prevention of Infarction: A Randomized Stroke Study

pts with recent TIA or ischemic strokes were randomized to triiflusal 600mg/day vs ASA 325 mg/day

no significant difference in combined endpoint of stroke, MI, vascular death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Stroke Trial WARSS

A

Warfarin Aspirin Recurrent Stroke Study

there was no benefit from warfarin INR 1.4 -2.8 compared to ASA 325mg daily for secondary prevention of ischemic, non cardioembolic stroke or death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Stroke Trial WASID

A

Warfarin Aspirin in Symptomatic Intracranial Disease

for symptomatic intracranial stenosis 50-99% warfarin increased the risk of adverse events without any vascular cause other than stroke compared to Asa 1300mg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

T/F

Migraine headaches are not a component of Binswanger Disease

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

recurrent small strokes beginning in early adulthood culminate in a subcortical dementia

imaging: large confluent cerebral white matter changes
mutation: missense change on chromosome 19 of the NOTCH 3 gene

A

CADASIL

Cerebral Autosomal Dominant Arteriopathy with Subcortical infarcts and leukoencephalopathy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

different vasculopathy, migraine not part of the syndrome
NOTCH gene is normal
inheritance is a recessive trait from a mutation in HTAR1 gene
resulting in fragmentation and duplication of the internal elastic lamina of cerebral vessels with narrowing of their lumens

A

CARASIL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

T/F

Levels of protein C and S and of antithrombin are temporarily depressed after stroke

A

True
Adams p833
so that any detected abnormalities must be confirmed months later and in the absence of anticoagulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Genetic disorder which cause arterial or venous infarction with maternal type of inheritance

A

MELAS (mitochondrial)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

most common sites of ICH

A
  1. putamen and int capsule 50%
  2. central white matter of temporal parietal frontal lobes
  3. thalamus
  4. cerebellar hem
  5. pons
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

the _____ sign the appearance of contrast within the hemorrhage during CT angiography is associated with a high rate of hematoma expansion

A

spot sign

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

how many weeks before the surrounding edema in ICH begins to recede and the density of hematoma decreases

A

2-3 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

hypertensive vascular lesions that lead to arteriolar rupture

changes in arterial wall referred to as segmental lipohyalinosis and the formation of false aneurysm (microaneurysm) named as

A

Charcot Bouchard aneurysms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

aspirin can prevent stroke due to AF by how many percent

A

24

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

warfarin reduces stroke in AF by how many percent

A

64

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

warfarin compared with aspirin reduced stroke by

A

38

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

identify trial
among patients intolerant with warfarin, dual antiplatelet therapy using clopidogrel and aspirin is better than aspirin alone but there was increased bleeding with DAPT

A

ACTIVE-A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Mortality rate in patients with clots of 60mL or larger and an initial Glasgow Coma Scale score of 8 or less

A

Mortality is 90%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

Mortality rate for ICH score of 4

A

97%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q 
ICH score for the following
GCS 5-12
>30ml
age <80
with intravetricular hemorrhage
A

ICH score 3, mortality rate of 72%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

T/F
In patient with ICH who survive, there can be as surprising degree of restoration of function because in contrast to infarction, the hemorrhage has to some extent pushed brain tissue aside rather than destroy it

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

goals in management of patients with large ICH
PCO2
osmolality
Na

A

PCO2 25-30mmHg
Osmolality 295 to 305 mOsm/L
Na 145 to 150 mEq

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

STICH

A

Surgical Trial in ICH
1033 patients with supratentorial hemorrhage
failed to show benefit from early surgery on survival or neurologic functioning at 6 months

62
Q

site of rupture in saccular or berry aneurysm

A

dome of the aneurysm

63
Q

increased incidence of “conditions” with saccular aneurysms and vice versa
(5)

A 
congenital polycystic kidneys
fibromuscular dysplasia of the extracranial arteries
moyamoya
arteriovenous malformations of the brain
coarctation of the aorta
64
Q

Percentage of saccular aneurysms that lie on the anterior part of the circle of Willis

A

90 to 95 percent

65
Q

Most Common Sites of Aneurysm formation

A

(1) proximal portion of Acomm
(2) origin of Pcomm at the stem of ICA
(3) first major bifurcation of MCA
(4) bifurcation of ICA into middle and anterior CAs

66
Q

in patients who survive the initial aneurysmal rupture, the most feared complication

A

rerupture

67
Q

Radiation of pain of ruptured aneurysms in the ffg
cavernous or anterolaterally situated
posteroinferior or Anteroinferior cerebellar artery

A

cavernous or anterolaterally situated - projected to the orbit
posteroinferior or Anteroinferior cerebellar artery - unilateral occipital or cervical pain

68
Q

where is the aneurysm located?

(1) monocular visual field defect
(2) partial CN III palsy, dilated pupil

A

1 supralcinoid aneurysm near the anterior and middle cerebral bifurcation or the ophthalmic-caroitd bifurcation
2 PComm-IC junction or at the PComm-PC junction

69
Q

in Both traumatic puncture and early AH the proportion of WBCs to RBCs in the CSF is usually the same as the circulating blood
ration of WBC to RBC

A

1:700

70
Q

How many percent of patients with with aneurysmal rupture will not have an aneurysm evident after 4v angio

A

5-10%

71
Q

Vasospasm usually appears when

A

3-10 days after rupture

72
Q

morphologic changes seen in arteries in chronic spasm

A

smooth muscle cells of media become necrotic

adventitia infiltrated with neutrophilic leukocytes, mast cells, and red blood corpuscles

73
Q

Delayed and subacute HCP as a result of blockage of the CSF pathways by blood may appear after how many weeks

A

2 to 4 weeks

74
Q

subhyaloid hemorrhages, or preretinal hges

outlined collections of blood that cover the retinal vessels, associated with SAH

A

Terson Syndrome

75
Q

systemic changes associated with SAH

A 
1 ECG  changes, large peaked T waves, cerebral T waves
2 minor elevation of troponin and myocardial band of creatine phosphokinase
3 decreasing EF
4 hyponatremia
5 albuminuria and glycosuria
6 DI
7 leukocytosis 15 to 18k
8 ESR and CRP Normal
76
Q

International Subarachnoid Aneurysm Trial Group

A

2000 patients

surgery vs coiling
Endovascular: 24% overall rate of death or dependence at 1 year
Surgery: 31%

77
Q

in SAH risk of infection in shunt tubing is high if it is left in place for more than

A

3 days

78
Q

for unruptured aneurysms, what is the significant feature in relation to rupture

A

aneurysmal size

79
Q

rate of rupture for aneurysms smaller than 7mm diameter
size between 7mm and 10mm
size 13mm to 24mm
>25mm

A

smaller than 7mm diameter 0.1%

size between 7mm and 10mm 0.5%

size 13mm to 24mm
0.6 to 3.5%

depending on location

> 25mm 10%

80
Q

in AVM rate of rebleeding in most series

A

2-4% per year over decades or

6-9% per year in the year after hemorrhage

81
Q

Spetzler Martin Scale

A

gives guidance to surgical difficulty and risk

82
Q

prognosis of 20 - 40 % of AVMs amenable to block dissection

A

Mortality rate 2-5% and morbidity of 5-10%

83
Q

size of AVMs amenable to radiosurgery

A

smaller than 3 cm

84
Q

drawback of radiosurgery in obliteration of AVM

A

latency of at least 18 to 24 months

patient is unprotected from rebleeding

85
Q

success rate after 2 years in AVMs less than 2.5cm which underwent radiotherapy

A

75-80% have been obliterated

86
Q

Complications of radiotherapy

A

delayed radiation necrosis and venous congestion

87
Q

Endovascular techniques prognosis

A

25% of small and medium size AVM have been completely obliterated
Mortality rate 3 %
Morbidity 5-7%

88
Q

Dural AV fistulas at high risk of bleeding are those located in (2)

A

anterior cranial fossa

tentorial incisura

89
Q

risk of intracranial hemorrhage with use of thrombolytic drugs in the treatment of stroke and MI
%?

A

6-20%

90
Q

top 3 MC tumors than can cause tumoral bleed

A

choriocarcinoma
melanoma
renal cell and bronchogenic ca

others
pituitary adenoma
thryroid Ca
GBM
intravascular lymphoma
carcinoid
medulloblastoma
91
Q

Mortality rate in CVT with large hemorrhagic venous infarctions

A

20%

92
Q

Stroke Trial ARISTOTLE

A

Apixaban Versus Warfarin in Patients with AF

apixaban 5mg BID is superior to warfarin INR 2-3 for the prevention of stroke and systemic embolism in patients with Afib and causes significantly less ICh, major bleeding and death

93
Q

ACTIVE-A

A

Effect of Clopridogrel
added to Aspirin in Patients with AF

In patients with AF not suitable to warfarin, ASA + clopid significantly decreases ischemic stroke risk and significantly increases minor + major bleeding risks compared to ASA monotheraoy

94
Q

AVERROES

A

Apixaban in Patients with AF

Apixaban 5mg BID is superior to ASA 81-324mg for prevention of stroke or systemic embolism in pts with AF who are unsuitable for warfarin and apixaban appeared to have similar bleeding rates to ASA in this cohort

95
Q

CHANCE

A

Clopidogrel with Aspirin in Acute Minor Stroke or Transient Ischemic Attack

Among patients with TIA or minor stroke who can initiate antiplatelets within 24 hrs after symptom onset, the combination of clopidogrel and aspirin for the first 21 days after stroke is superior to aspirin alone for reducing the rist of stroke in the first 90 days and does not increase the risk of moderate-sever hemorrhage

96
Q

CREST

A

Stenting versus Endarterectomy for Treatment of Carotid-artery Stenosis

Pts undergoing CAS are more likely to have periprocedural stroke whereas CEA patients are more likely to have periprocedural MI, Patients <70 years who underwent CAs had less periprocedural stroke than those >70; patients >70 who underwent CEA had better outcomes than CAS. There is no significant difference in composite stroke, MI, death between CEA and CAS in suymptomatic or asymptomatic extracranial ICA stenosis

97
Q

ECASS

A

Thrombolysis with ALTEPLASE 3-4.5 hrs after Acute Ischemic Stroke

treatment with IV tPA at 3-4.5 hrs from stroke onset is associated with more favorable outcomes (mRS 0-1) and more symptomatic ICH compared to placebo

european

new exclusion criteria: age > 80, NIHSS > 25, prior stroke with diabetes

98
Q

FASTER

A

Fast Assessment of Stroke and TIA to prevent early recurrence

ASA clopidogrel load 300mg + daily maintenance 75 mg or simvastatin 40mg to ASA 81 mg may when given <24 hrs from stroke onset showed no difference in stroke risk at 90 days, but study was underpowered to detect a statistically significant difference

99
Q

INTERACT 2

A

Rapid Blood pressure lowering in patients with Acute ICH

In patients with mild to moderate spontaneous IC, intensive SBP control to goal <140 within 1 hour compared to conservative treatment of <180 within 6 hrs shows no difference in major disability or death at 3 months, but is equally safe

100
Q

IST -3

A

The Benefits and Harms of IV thrombolysis with rTPA within 6 hrs of Acute ischemic stroke

tPA given within 6 hours after onset leads to more ICH and death in the first 7 days but there was an increase in favorable outcomes at 6 months Pts aged >80 and pts <80 showed no difference in independence at 6 months

101
Q

NINDS

A

TPA in acute ISchemic Stroke

Acute Ischemic Stroke treated with IV TPA in the first 3 hrs is associated with a better 3 month global outcome measure compared to placebo as well as an increased rate of symptomatic ICH at 36 hours

symptomatic ICH rate at 36 hrs was 6.4% in tPA vs 0.6% in placebo

minor external bleeding in tPA vs placebo 23 vs 3%

102
Q

T/F

The occurrence of carotid TIAs is a predictor of myocardial infarction.

A

True

p786

103
Q

After TMB/amaurosis fugax
The risk of stroke over 3 yrs following an attack is _____ if there are no other issues such as diabetes

but the risk of stroke is _____ in patients with atherosclerosis

A

2%

24%

104
Q

anticoagulant factors

A

heparin cofactor 2
antithrombin III
protein C and S

105
Q

Right common carotid artery arises at

A

level of sternoclavicular notch from the innominate (braciocephalic) artery

106
Q

Left common carotid artery comes form

A

aortic arch

107
Q

bifurcation of the common carotid artery is at the level of

A

C4

108
Q

atherosclerosis or stenotic occlusion of MIDPORTION of CCA occurs after

A

radiation therapy for laryngeal, thyroids, or any head and neck cancer

109
Q

T/F

The internal carotid is an end vessel.

A

FALSE

NOT AND END VESSEL
p795

110
Q

T/F

Studies over the years have affirmed that most carotid occlusions are thrombotic whereas most middle cerebral occlusions are embolic.

A

True

p797

111
Q

T/F

Occlusion of the anterior cerebral arteries is usually embolic.

A

True

p800

112
Q

With a left sided occlusion of _____ there may be a sympathetic apraxia of the left arm and leg or involuntary misdirected movements of the left arm (alien arm or hand)

A

ACA

113
Q

Language disturbance that may occur with anterior cerebral artery stroke

A

transcortical motor aphasia

114
Q

with occlusion of the penetrating branches of the ACA, which structures are usually involved

A

caudate

anterior limb of internal capsule

115
Q

origin of the anterior choroidal artery

A

internal carotid

116
Q

what structures are being supplied by the anterior choroidal artery

A

internal segment of globus pallidus
posterior limb of Internal capsule
optic tract
choroid plexus and anastomoses with posterior choroidal artery

117
Q

thalamoperforate branches arise from

A

junction of the posterior cerebral branch and posterior communicating arteries

118
Q

thalamoperforate branches supply what structures

A

inferior

medial and anterior parts of the thalamus

119
Q

thalamogeniculate branches supply

A

geniculate body and central and posterior parts of thalamus

120
Q

artery of Percheron

A

anatomic variant

azygos paramedian artery supplies both sides of the posterior medial thalamus

121
Q

occlusion of which part of the thalamus causes amnesic (Korsakoff) syndrome

A

paramedian thalamic branches to the mediodorsal nucleus

122
Q

Cortical Syndromes of the Posterior Cerebral Artery

A

occipital infarcts of the dominant hemisphere may cause alexia without agraphia, anomia, a variety of visual agnosias, rarely some degree of impaired memory

123
Q

effect of bilateral occipito-parietal border-zone lesions

A

Balint syndrome

124
Q

Branches of basilar artery

A
  1. paramedian 7-10 pairs supplying wedge of pons on either side of midline
  2. short circumferential 5-7 pairs - lateral 2/3 of pons and the middle and SCP
  3. long circumferential - 2 on each side
    SCA and AICA
  4. several paramedian (interpeduncular) branches
125
Q

3 mechanisms for lacunar infarction

A
  1. local type of fibrohyalinoid arteriolar sclerosis that involves the orifice or proximal part of a small penetrating blood vessel
  2. atherosclerosis of a large trunk vessel that occludes the origin of these small vessels
  3. entry of small embolic material into one of the vessels
126
Q

MOA tPA

tissue plasminogen activator

A

convert plasminogen to plasmin

127
Q

T/F

For tPA the dose used in acute stroke is higher than that of myocardial infarction.

A

False

Lower dose
p813

128
Q

risk of symptomatic ICH after rtPA treatment

A

6%

p813

129
Q

T/F

Ticlopidine and clopidogrel are considered on the basis of clinical trials to be equivalent or marginally more effective than aspirin for the prevention of stroke but they are more expensive.

A

True

p819

130
Q

toxicity of clopidogrel and ticlopidine

A

ticlopdiine - neutropenia
clopidogrel - TTP

*dipyridamole in high doses not tolerated because of dizziness induced by peripheral vasodilation

131
Q

Mortality rate in extensive brainstem infarction caused by basilar artery occlusion

A

40%

132
Q

segmental, nonatheromatous, noninflammatory arterial disease of unknown etiology

A

fibromuscular dysplasia

133
Q

most common origin of vertebral artery dissection

A

C1 and C2 segment of vessel where it is mobile but tethered as it leaves the foramen of the axis and turns sharply to enter the cranium

134
Q

T/F
in vertebral artery dissection, pseudoaneurysms in the cervical portions of the vessels generally do not require specific treatment..

A

True

p829

135
Q

treatment of cervical artery dissection

A

primarily anticoagulation for several weeks or months and followed up with some form of arteriography

choice between aspirin and warfarin has not been clarified

136
Q

formation of a network of small anastomotic vessels at the base of the brain around and distal to the circle of Willis

seen in carotid arteriograms, associated with segmental stenosis or occlusion of the terminal intracranial parts of both internal carotid arteries

A

Moyamoya Disease

137
Q

abnormality in Moyamoya disease

A

carotid lesion:
thickened intima by fibrous tissue
normal adventitia, media and internal elastic laminae

rete mirabile:
microaneurysm formation because of weakness of the IEL and thinness of vessel wall

138
Q

widespread degeneration of cerebral white matter having a vascular causation and observed in the context of hypertension, atherosclerosis of the small blood vessels and multiple strokes

dementia, pseudobulbar state, and a gait disorder alone or in combination are the main features

A

Binswanger Disease

139
Q

large confluent cerebral white matter changes
hereditary multiinfarct dementia
autosomal dominant
migraine headaches precede the strokes

A

CADASIL

cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy

140
Q

syndrome of early alopecia and lumbar spondylosis with the white matter changes typical of CADASIL

A

CARASIL

cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy

141
Q

mutation in CADASIL

A

missense change in Chrom 19 NOTCH3 gene

142
Q

gene implicated in CARASIL

A

HTAR1

143
Q

vascular lesion underlying cerebral thrombosis in women taking oral contraceptives

A

nodular intimal hyperplasia of eccentric distribution with increased acid mucopolysaccharides and replication of the internal elastic lamina

144
Q

T/F

The use of progestin-only pills or of subcutaneously implanted capsules of progestin has been associated with stroke.

A

False

has NOT been associated
p836

145
Q

In thalamic hemorrhage presenting with skewed eyes, which of the ffg is CORRECT?

a. contralateral eye assumes a higher position
b. ipsilateral eye assumes a higher position
c. both eyes assume a high position
d. can be any of the above

A

b. ipsilateral eye assumes a higher position

146
Q

ICH score components

A

GCS 3-4 = 2
5-12 = 1
13-15 = 0

ICH volume more than 30cc = 1, less than 30cc = 0
Age 80 and above = 1, less than 80 = 0
infratentorial = 1
IVH = 1

147
Q

ICH score and mortality rate

A 
score 5 above, 100%
4, 97%
3, 72%
2, 26%
1, 13%
148
Q

Hunt and Hess grading in SAH

A

Grade I. Asymptomatic or with slight headache and stiff neck
Grade II. Moderate to severe headache and nuchal rigidity but no focal or lateralizing neurologic signs
Grade III. Drowsiness, confusion, and mild focal deficit
Grade IV. Persistent stupor or semicoma, early decerebrate rigidity and vegetative disturbances
Grade V. Deep coma and decerebrate rigidity

149
Q

marker that is overrepresented in Alzheimer disease is associated with amyloid angiopathy

A

Apo E4

150
Q

Stroke in hypercoagulable state

criteria for diagnosis of antiphospholipid antibody (Hughes) syndrome

A

an ischemic event be accompanied by the detection of auto antibodies on two occasions at least 6 weeks apart

151
Q

caused by anacquired circulating IgG inhibitor of the von Willebrand Factor-cleaving protease

disease of the small blood vessels combined with microangiopathic hemolysis
characterized by widespread occlusions of arterioles and capillaries

A

Thrombotic Thrombocytopenic Purpura

fever, anemia, symptoms of renal and hepatic disease and thrombocytopenia

neurologic: confusion, delirium, seizures, hemiparesis

152
Q

abnormal hemoglobin S in red corpuscles

A

Sickle cell disease

ADAMS (29 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions