NYMC Faculty Publications

Comparison of Carbon Dioxide Absorption Rates in Gynecologic Laparoscopy with a Valveless versus Standard Insufflation System: Randomized Controlled Trial

DOI

10.1016/j.jmig.2019.05.005

Journal Title

Journal of Minimally Invasive Gynecology

First Page

225

Last Page

234

Document Type

Article

Publication Date

1-2020

Department

Obstetrics and Gynecology

Abstract

STUDY OBJECTIVE: The primary objective was to compare carbon dioxide (CO

DESIGN: A randomized controlled trial using an equal allocation ratio into 4 arms: standard insufflation/IAP 10 mm Hg, standard insufflation/IAP 15 mm Hg, valveless insufflation/IAP 10 mm Hg, and valveless insufflation/IAP 15 mm Hg.

SETTING: Single tertiary care academic institution.

PATIENTS: Women ≥ 18 years old undergoing nonemergent conventional or robotic gynecologic laparoscopic surgery.

INTERVENTIONS: A standard or valveless insufflation system at IAPs of 10 or 15 mm Hg.

MEASUREMENTS AND MAIN RESULTS: One hundred thirty-two patients were enrolled and randomized with 33 patients per group. There were 84 robotic cases and 47 conventional laparoscopic cases. CO

CONCLUSION: CO2 absorption rates, anesthesiologists' ability to maintain adequate etCO2, and postoperative shoulder pain did not differ based on insufflation system type or IAP. Surgeons' rating of visualization of the operative field was significantly improved when using the valveless over the standard insufflation system.

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