Cochrane · systematic review · CD008684

Coenzyme Q10 for heart failure

Al Saadi, T, Assaf, Y, Farwati, M, et al. · Cochrane Database of Systematic Reviews · 2021 · 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
7
current version
GRADE rated
7
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 2 · 28.6%Low 3 · 42.9%Moderate 2 · 28.6%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

Coenzyme Q10 compared to placebo or conventional therapy for heart failure

Population: people with heart failure
7 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Coenzyme Q10 vs placebo or conventional therapy
RR 0.58 [0.35, 0.95]1 study · 420 participantsModerate
Downgraded: imprecision, indirectness
Myocardial infarction
Coenzyme Q10 vs placebo or conventional therapy
RR 1.62 [0.27, 9.59]1 study · 420 participantsLow
Downgraded: imprecision, indirectness
Stroke
Coenzyme Q10 vs placebo or conventional therapy
RR 0.18 [0.02, 1.48]1 study · 420 participantsLow
Downgraded: imprecision, indirectness
Hospitalisation for heart failure
Coenzyme Q10 vs placebo or conventional therapy
RR 0.62 [0.49, 0.78]2 studies · 1061 participantsModerate
Downgraded: risk of bias
Left ventricular ejection fraction (%)
Coenzyme Q10 vs placebo or conventional therapy
no estimate extracted7 studies · 650 participantsVery low
Downgraded: risk of bias, imprecision
Exercise capacity(
Coenzyme Q10 vs placebo or conventional therapy
no estimate extracted3 studies · 91 participantsVery low
Downgraded: risk of bias, imprecision
Adverse events
Coenzyme Q10 vs placebo or conventional therapy
RR 0.7 [0.45, 1.1]2 studies · 568 participantsLow
Downgraded: imprecision, indirectness