Cochrane · systematic review · CD012269

Antithrombotic therapy to prevent cognitive decline in people with small vessel disease on neuroimaging but without dementia

Kwan, J, Hafdi, M, Chiang, LL W, et al. · Cochrane Database of Systematic Reviews · 2022 · Cochrane Library

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
21
current version
GRADE rated
15
No studies
6
Included studies
NR
No studies 6 · 28.6%Ungraded 0 · 0%Very low 11 · 52.4%Low 4 · 19%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Antiplatelet drug compared to placebo in mixed populations (with or without pre‐existing antiplatelet therapy) for the prevention of cognitive decline and dementia in people with cerebral small vessel disease and no dementia

Population: s with mixed prevalence of antiplatelet drug use at baseline, for the prevention of cognitive decline and dementia in people with cerebral small vessel disease and no dementia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Change in cognitive function from baseline
Antiplatelet drug vs placebo
no estimate extracted1 study · 280 participantsVery low
Downgraded: imprecision
Incident dementia
Antiplatelet drug vs placebo
no estimate extractedNRNo studies
Major bleeding (intracranial and extracranial)
Antiplatelet drug vs placebo
no estimate extracted1 study · 280 participantsVery low
Downgraded: imprecision
Functional ability
Antiplatelet drug vs placebo
no estimate extracted1 study · 280 participantsVery low
Downgraded: imprecision
Stroke or transient ischaemic attack
Antiplatelet drug vs placebo
no estimate extracted1 study · 280 participantsVery low
Downgraded: imprecision
Any adverse events (excluding major bleeding)
Antiplatelet drug vs placebo
no estimate extracted1 study · 280 participantsVery low
Downgraded: imprecision
Withdrawal from study medication
Antiplatelet drug vs placebo
no estimate extracted1 study · 280 participantsVery low
Downgraded: imprecision

Antiplatelet therapy compared to placebo for prevention of cognitive decline and dementia in people with cerebral small vessel disease and no dementia

Population: s for prevention of cognitive decline and dementia in people with cerebral small vessel disease and no dementia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Change in cognitive function from baseline
Antiplatelet therapy vs placebo
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision
Incident dementia
Antiplatelet therapy vs placebo
no estimate extractedNRNo studies
Major bleeding (intracranial and extracranial)
Antiplatelet therapy vs placebo
no estimate extractedNRNo studies
Functional ability
Antiplatelet therapy vs placebo
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision
Stroke or transient ischaemic attack
Antiplatelet therapy vs placebo
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision
Any adverse events (excluding major bleeding)
Antiplatelet therapy vs placebo
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision
Withdrawal from study medication
Antiplatelet therapy vs placebo
no estimate extracted1 study · 50 participantsVery low
Downgraded: risk of bias, imprecision

Dual antiplatelet therapy compared to single antiplatelet therapy for prevention of cognitive decline and dementia in people with cerebral small vessel disease and no dementia

Population: people with cerebral small vessel disease and no dementia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Change in cognitive function from baseline
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extracted1 study · 3020 participantsLow
Downgraded: imprecision, indirectness
Incident dementia
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extractedNRNo studies
Major bleeding (intracranial and extracranial)
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extracted1 study · 3020 participantsLow
Downgraded: imprecision, indirectness
Functional ability
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extractedNRNo studies
Stroke or transient ischaemic attack
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extracted1 study · 3020 participantsLow
Downgraded: imprecision, indirectness
Any adverse events (excluding major bleeding)
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extractedNRNo studies
Withdrawal from study medication
Dual antiplatelet therapy vs single antiplatelet therapy
no estimate extracted1 study · 3020 participantsLow
Downgraded: imprecision, indirectness