Cochrane · systematic review · CD011168

Implantable defibrillators versus medical therapy for cardiac channelopathies

McNamara, DA, Goldberger, JJ, Berendsen, MA, et al. · Cochrane Database of Systematic Reviews · 2015 · Cochrane Library

HeartAMSTAR 2: not assessed
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
5
current version
GRADE rated
5
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 5 · 100%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

Implantable cardioverter defibrillators compared to β‐blocker therapy for prevention of sudden cardiac death in people with cardiac channelopathies

Population: people with cardiac channelopathies
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Implantable cardioverter defibrillators vs β‐blocker therapy
RR 0.11 [0.01, 0.83]2 studies · 86 participantsLow
Downgraded: risk of bias
Fatal and non‐fatal cardiovascular events
Implantable cardioverter defibrillators vs β‐blocker therapy
RR 1.49 [0.66, 3.34]2 studies · 86 participantsLow
Downgraded: risk of bias
Adverse events
Implantable cardioverter defibrillators vs β‐blocker therapy
RR 2.44 [0.92, 6.44]2 studies · 86 participantsLow
Downgraded: risk of bias
Non‐fatal cardiovascular events
Implantable cardioverter defibrillators vs β‐blocker therapy
RR 11.44 [1.57, 83.36]2 studies · 86 participantsLow
Downgraded: risk of bias
Inappropriate ICD firing
Implantable cardioverter defibrillators vs β‐blocker therapy
RR 10.17 [1.32, 78.54]2 studies · 86 participantsLow
Downgraded: risk of bias