A sequence trial measured procedure time and medication use rather than every dimension of sedation quality.
Patients undergoing same-day upper and lower endoscopy were randomized to upper-first or lower-first sequences. Mean midazolam use was 1.6 versus 1.4 mg, with no statistically significant difference. Total procedure time and other recorded sedative or analgesic doses also did not differ significantly.
The interval between procedures was longer in the lower-first group. That finding should remain separate from total procedure time and total medication exposure.
The trial was open label and single-center. It was designed to detect a specified time difference, not to establish equivalence for uncommon adverse events. Patient satisfaction and procedure quality were not assessed as study outcomes.
For a sedation review, procedure sequence is one contextual factor, while titration, patient condition, technique, and monitoring still matter. This study does not establish that order can never affect an individual’s response or that equal average doses imply equal depth of sedation.
Original analysis of the supplied journal article, identified as PMC6891031.