Does sealing endotracheal tube cuff pressure diminish the frequency of postoperative laryngotracheal complaints after nitrous oxide anesthesia?

Journal of Clinical Anesthesia
José Reinaldo Cerqueira BrazGiane Nakamura

Abstract

To study endotracheal tube (ETT) cuff pressures during nitrous oxide (N2O) anesthesia when the cuffs are inflated with air to achieve sealing pressure, and to evaluate the frequency of postoperative laryngotracheal complaints. Prospective, randomized, blind study. Metropolitan teaching hospital. 50 ASA physical status I and II patients scheduled for elective abdominal surgery. Patients received standard general anesthesia with 66% N2O in oxygen. In 25 patients, the ETT cuff was inflated with air to achieve a sealing pressure (Pseal group). In 25 patients, the ETT cuff was inflated with air to achieve a pressure of 25 cm H2O (P25 group). ETT intracuff pressures were recorded before (control) and at 30, 60, 90, 120, and 150 minutes during N2O administration. We investigated the frequency and intensity of sore throat, hoarseness, and dysphagia in patients in the Post-Anesthesia Care Unit (PACU) and 24 hours following tracheal extubation. The cuff pressures in the Pseal group were significantly lower than in the P25 group at all time points studied (p < 0.001), with a significant increase with time in both groups (p < 0.001). The cuff pressures exceeded the critical pressure of 30 cm H2O only after 90 minutes in the Pseal group and...Continue Reading

References

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Citations

Mar 26, 2009·Acta Anaesthesiologica Taiwanica : Official Journal of the Taiwan Society of Anesthesiologists·Mojgan Rahimi, Jalil Makarem
Jun 28, 2011·Annales Françaises D'anesthèsie Et De Rèanimation·L BeydonP Talec
Mar 26, 2009·Acta Anaesthesiologica Taiwanica : Official Journal of the Taiwan Society of Anesthesiologists·Rakesh Garg
Mar 28, 2006·Journal of Clinical Anesthesia·Roland N KaddoumZulfiqar Ahmed
Mar 13, 2015·British Journal of Hospital Medicine·Edward Davis
Dec 15, 2011·Journal of Perioperative Practice·Pervez SultanRoman Cregg

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