Question · asked by 1 review

Double vs single‐injection technique: Adverse effects lasting more than 24 hours3

Population
Adult patients undergoing hand, wrist or forearm surgery
Intervention
Double
Comparison
single‐injection technique
Outcome
Adverse effects lasting more than 24 hours3

It is very uncertain whether double changes adverse effects lasting more than 24 hours3 compared with single‐injection technique (very low certainty).

What each review found

Current versions only
No studies found 0 · 0%GRADE not reported 0 · 0%Very low 2 · 66.7%Low 1 · 33.3%Moderate 0 · 0%High 0 · 0%
FindingEffectStudiesGRADE certainty
Double vs single‐injection technique
Adverse effects lasting more than 24 hours5 · adult patients undergoing hand, wrist or forearm surgery
Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in… (2016) · Cochrane Headline outcomes only
no estimate extracted2 studies · 119 participantsLow
Double vs single‐injection technique
Adverse effects lasting more than 24 hours3 · Adult patients undergoing hand, wrist or forearm surgery
It is very uncertain whether double changes adverse effects lasting more than 24 hours3 compared with single‐injection technique (very low certainty).
Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in… (2013) · Cochrane Headline outcomes onlyearlier version CD003842.PUB4, superseded
RR 1.25 [0.27, 5.89]2 studies · 119 participantsVery low
Double vs single‐injection technique
Adverse effects lasting more than 24 hours3 · Adult patients undergoing hand, wrist or forearm surgery
It is very uncertain whether double changes adverse effects lasting more than 24 hours3 compared with single‐injection technique (very low certainty).
Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in… (2011) · Cochrane Headline outcomes onlyearlier version CD003842.PUB3, superseded
RR 1.25 [0.27, 5.89]2 studies · 119 participantsVery low

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in adults undergoing surgery of…
2016 · Cochrane Headline outcomes only
Not reportedNot extractedNot assessed
How reviews are matched to this question

Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.