Cochrane · systematic review · CD013438

Perioperative beta‐blockers for preventing surgery‐related mortality and morbidity in adults undergoing non‐cardiac surgery

Blessberger, H, Lewis, SR, Pritchard, MW, et al. · Cochrane Database of Systematic Reviews · 2019 · Cochrane Library

AnaesthesiaAMSTAR 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 1 · 14.3%Low 5 · 71.4%Moderate 1 · 14.3%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

Perioperative beta‐blockers compared to placebo or standard care for preventing surgery‐related mortality and morbidity in adults undergoing non‐cardiac surgery

Population: adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
7 questions
OutcomeEffectEvidenceStatus / GRADE
Early all‐cause mortality (within 30 days)
Perioperative beta‐blockers vs placebo or standard care
RR 1.17 [0.89, 1.54]16 studies · 11446 participantsLow
Downgraded: risk of bias, inconsistency
Acute myocardial infarction (within 30 days)
Perioperative beta‐blockers vs placebo or standard care
RR 0.72 [0.6, 0.87]12 studies · 10520 participantsLow
Downgraded: risk of bias, inconsistency
Cerebrovascular events (within 30 days)
Perioperative beta‐blockers vs placebo or standard care
RR 1.65 [0.97, 2.81]6 studies · 9460 participantsLow
Downgraded: risk of bias, inconsistency
Ventricular arrhythmias (within 30 days)
Perioperative beta‐blockers vs placebo or standard care
RR 0.72 [0.35, 1.47]5 studies · 476 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Atrial fibrillation or atrial flutter, or both (within 30 days)
Perioperative beta‐blockers vs placebo or standard care
RR 0.41 [0.21, 0.79]9 studies · 9080 participantsLow
Downgraded: risk of bias, inconsistency
Bradycardia (within 30 days; as defined by study authors, minimum heart rate < 60 beats per minute or requiring medication)
Perioperative beta‐blockers vs placebo or standard care
RR 2.49 [1.74, 3.56]49 studies · 12239 participantsLow
Downgraded: risk of bias, inconsistency
Hypotension (within 30 days; as defined by study authors, minimum systolic blood pressure < 90 mmHg or requiring medication)
Perioperative beta‐blockers vs placebo or standard care
RR 1.4 [1.29, 1.51]49 studies · 12304 participantsModerate
Downgraded: risk of bias