The randomized variable was topical anesthetic concentration, not benzodiazepine exposure.
What the publication shows
The pilot trial compared one-percent and two-percent spray-as-you-go lignocaine during EBUS, with midazolam–fentanyl moderate sedation shared by both arms. Operator-rated cough and satisfaction did not show a statistically clear difference, while cumulative lignocaine dose was lower with the less concentrated solution.
Limits of the evidence
The pilot’s nonsignificant results do not automatically prove formal equivalence. Shared background sedation prevents attributing the randomized comparison to midazolam. Multiple topical preparations also contributed to the total local-anesthetic exposure.
Application to expert review
For procedural interpretation, identify which component actually differed between trial arms. Do not cite this study as evidence that midazolam independently controlled cough or that less total sedation was required. Preserve the difference between drug concentration, total dose and the clinical outcome measured.
Source and related reading
Source: Publication PMC6219128. The case-review applications above are interpretive analysis.
Related reading: Postoperative Cancer ICU Trial Kept Sedation Targets Separate From Later Outcomes.
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