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Randomized Controlled Trial
. 2021 Aug;35(8):4143-4152.
doi: 10.1007/s00464-020-07881-1. Epub 2020 Aug 17.

Pulmonary recruitment can reduce residual pneumoperitoneum and shoulder pain in conventional laparoscopic procedures: results of a randomized controlled trial

Denzil Garteiz-Martínez  1 , Ernesto Rodríguez-Ayala  2 , Alejandro Weber-Sánchez  2 , Carlos Bravo-Torreblanca  2 , Rafael Carbó-Romano  2
Affiliations
Randomized Controlled Trial

Pulmonary recruitment can reduce residual pneumoperitoneum and shoulder pain in conventional laparoscopic procedures: results of a randomized controlled trial

Denzil Garteiz-Martínez et al. Surg Endosc. 2021 Aug.

Abstract

Background: This study is aimed to evaluate the pulmonary recruitment maneuver as a means to effectively reduce residual pneumoperitoneum and postoperative shoulder pain in patients undergoing conventional laparoscopic procedures and compare it to the instillation of intraperitoneal anesthetics.

Methods: Patients undergoing laparoscopic cholecystectomy, appendectomy or hernioplasty were randomized into two groups: pulmonary recruitment maneuver (PRM) and intraperitoneal anesthetic instillation (IAI). Six hours after surgery patients were asked to fill out a visual analog scale to identify shoulder pain and a chest X-ray was taken. Groups were analyzed for incidence of residual pneumoperitoneum and shoulder pain as well as for volume of residual subdiaphragmatic gas and intensity of pain.

Results: A total of 84 patients (42 per group) were included in the study. Patients in the PRM group had a lower incidence of subdiaphragmatic gas present in the chest X-ray (29% vs 55%) p = 0.01 and less volume of residual pneumoperitoneum (mean difference -.31(95%CI -7.36, 0.72), p = 0.02). They also were half as likely to present shoulder pain (24% vs 50%) p = 0.01 and showed less pain intensity than those in the IAI group (mean difference -2.04(95%CI - 3.25, - 0.84), p = 0.000). The risk of presenting shoulder pain when residual pneumoperitoneum was present showed an RR = 11.1, p = 0.0001 in the PRM group and an RR = 8.3, p = 0.000 in the IAI group. The volume of subdiaphragmatic gas was positively correlated with the intensity of shoulder pain (r = 0.54, p = 0.000).

Conclusions: The pulmonary recruitment maneuver is effective in reducing the incidence and volume of residual pneumoperitoneum, as well as the incidence and intensity of shoulder pain in patients undergoing conventional laparoscopic procedures.

Keywords: Laparoscopy; Pulmonary recruitment; Shoulder pain.

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