• Department of Surgery, Radboud University Medical Center, Geert Grooteplein-Zuid 10, 6525 GA, Nijmegen, The Netherlands.
• World J Surg. 2017 Nov 1; 41 (11): 2950-2958.

BackgroundThe use of low intra-abdominal pressure (<10 mmHg) reduces postoperative pain scores after laparoscopic surgery.ObjectiveTo investigate whether low-pressure pneumoperitoneum with deep neuromuscular blockade improves the quality of recovery after laparoscopic donor nephrectomy (LDN).Design, Setting And ParticipantsIn a single-center randomized controlled trial, 64 live kidney donors were randomly assigned to 6 or 12 mmHg insufflation pressure. A deep neuromuscular block was used in both groups. Surgical conditions were rated by the five-point Leiden-surgical rating scale (L-SRS), ranging from 5 (optimal) to 1 (extremely poor) conditions. If the L-SRS was insufficient, the pressure was increased stepwise.Main Outcome MeasureThe primary outcome measure was the overall score on the quality of recovery-40 (QOR-40) questionnaire at postoperative day 1.ResultsThe difference in the QOR-40 scores on day 1 between the low- and standard-pressure group was not significant (p = .06). Also the overall pain scores and analgesic consumption did not differ. Eight procedures (24%), initially started with low pressure, were converted to a standard pressure (≥10 mmHg). A L-SRS score of 5 was significantly more prevalent in the standard pressure as compared to the low-pressure group at 30 min after insufflation (p < .01).ConclusionsLow-pressure pneumoperitoneum facilitated by deep neuromuscular blockade during LDN does not reduce postoperative pain scores nor improve the quality of recovery in the early postoperative phase. The question whether the use of deep neuromuscular blockade during laparoscopic surgery reduces postoperative pain scores independent of the intra-abdominal pressure should be pursued in future studies.Trial RegistrationThe trial was registered at clinicaltrial.gov before the start of the trial (NCT02146417).

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