Anesth Pain Med.  2022 Jan;17(1):98-103. 10.17085/apm.21044.

Endotracheal tube cuff pressure during laparoscopic bariatric surgery: highs and lows

• Saxena D
• Raghuwanshi J
• Dixit A
• Chaturvedi S

• KMID: 2526534
• DOI: http://doi.org/10.17085/apm.21044

Abstract

Background
Gastric calibration tubes (GCTs) are a unique component of bariatric surgery. This study aimed to assess changes in the endotracheal tube (ETT) cuff pressure during laparoscopic bariatric surgery. Methods: This was a prospective observational study consisting of 124 American Society of Anesthesiologists class I–III morbidly obese patients (body mass index > 40 kg/m2 ) undergoing elective laparoscopic bariatric surgery under general anesthesia. The baseline ETT cuff pressure was 28 cmH2O. Cuff pressure, peak airway pressure, and hemodynamic changes were observed during various steps of bariatric surgery. Immediate postoperative complications during the first 24 h were recorded. Results: ETT cuff pressure increased significantly from the baseline (28 cmH2O) after insertion of GCT (36.3 ± 7.3 cmH2O) and creation of carboperitoneum (33.3 ± 3.8 cmH2O). Cuff pressure decreased significantly on GCT removal (24.0 ± 3.0 cmH2O) and release of carboperitoneum (24.7 ± 3.0 cmH2O). Peak airway pressure increased from the initial baseline value of 25.1 ± 3.7 to 26.5 ± 4.5 after GCT insertion, creation of carboperitoneum (32.6 ± 4.4), attainment of reverse Trendelenburg position (32.3 ± 4.0), and subsequent return to supine position 32.5 ± 4.8. Conclusions: The endotracheal cuff pressure significantly varies during the intraoperative period. Routine monitoring and readjustment of cuff pressure are advisable in all laparoscopic bariatric surgeries to minimize the possibility of postoperative complications.

Keyword

Adult; Bariatric surgery; Calibration; Laparoscopic surgical procedures; Manometry; Morbid obesity; Trachea

Figure

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  Fig. 1. CONSORT flow chart of the study. CONSORT: consolidated standards of reporting trials, BMI: body mass index.

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