Cochrane · systematic review · CD009237
Avoidance versus use of neuromuscular blocking agents for improving conditions during tracheal intubation or direct laryngoscopy in adults and adolescents
Lundstrøm, LH, Duez, CHV, Nørskov, AK, et al. · Cochrane Database of Systematic Reviews · 2017 · 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
9
current version
GRADE rated
4
No studies
2
Included studies
NR
No studies 2 · 22.2%Ungraded 3 · 33.3%Very low 0 · 0%Low 2 · 22.2%Moderate 2 · 22.2%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
Summary of findings table: primary and secondary outcomes
Population: improving conditions during tracheal intubation or direct laryngoscopy in adults and adolescents
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Primary outcomes | no estimate extracted | NR | No studies |
Difficult tracheal intubation: low risk of bias trials | RR 13.27 [8.19, 21.49] | 4 studies · 508 participants | Moderate Downgraded: indirectness |
Difficult tracheal intubation: all trials | RR 5 [3.49, 7.15] | 34 studies · 3565 participants | Low Downgraded: risk of bias, imprecision, inconsistency, indirectness |
One or more events of upper airway discomfort or injury: low risk of bias trials | RR 2.74 [1.21, 6.21] | 1 study · 73 participants | Ungraded |
One or more events of upper airway discomfort or injury: all trials | RR 1.37 [1.09, 1.74] | 7 studies · 846 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency, indirectness |
Mortality | no estimate extracted | 0 studies · 34 participants | Ungraded |
Secondary outcomes | no estimate extracted | NR | No studies |
Difficult laryngoscopy: low risk of bias trials | RR 4 [0.47, 34.2] | 1 study · 78 participants | Ungraded |
Difficult laryngoscopy: all trials | RR 2.54 [1.53, 4.21] | 13 studies · 1308 participants | Low Downgraded: risk of bias, imprecision, inconsistency, indirectness |