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Canadian Journal of Anesthesia/Journal canadien d'anesthésie
Published in: Canadian Journal of Anesthesia/Journal canadien d'anesthésie 7/2012

01-07-2012 | Reports of Original Investigations

The LMA Supreme™ in 700 parturients undergoing Cesarean delivery: an observational study

Authors: Wei Yu Yao, MBBS, Shi Yang Li, MBBS, Ban Leong Sng, MBBS, Yvonne Lim, MBBS, Alex Tiong Heng Sia, MBBS

Published in: Canadian Journal of Anesthesia/Journal canadien d'anesthésie | Issue 7/2012

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Abstract

Background

The LMA Supreme™ (SLMA) is a single-use supraglottic device that provides a good seal for positive pressure ventilation. It has a double aperture design that facilitates the introduction of an orogastric tube to aspirate gastric contents. This observational study evaluated the role of the SLMA in parturients undergoing Cesarean delivery under general anesthesia.

Methods

Non-obese parturients with at least four hours of fasting and antacid prophylaxis scheduled for uncomplicated Cesarean delivery were recruited from June 2009 through May 2010 at the Quanzhou Women’s and Children’s Hospital, China. We recorded the number of SLMA insertion attempts, the time to effective ventilation, the incidence of aspiration, and other anesthetic and obstetric outcomes. Postoperatively, we noted the presence of blood on the SLMA, postoperative sore throat, and patient satisfaction. Analysis included comparison of results between parturients having elective and urgent Cesarean delivery.

Results

We recruited 700 parturients (576 elective, 124 urgent). Mean (standard deviation) body mass index was 25.6 (2.5) kg·m−2. All SLMA insertions were successful, with 686 (98%) inserted on first attempt and a time to effective airway of 19.5 (3.9) sec. We maintained ventilation and oxygenation in all parturients with a good seal and there was no evidence of aspiration. Eighteen parturients (2.6%) had blood on the SLMA upon removal, 24 (3.4%) had sore throat, and patient satisfaction was 85 (7)%. These results were similar in elective and urgent cases.

Conclusions

In a carefully selected group of parturients, the SLMA is a useful alternative to tracheal intubation for Cesarean delivery, providing effective ventilation and a low incidence of side effects or complications.
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Metadata
Title
The LMA Supreme™ in 700 parturients undergoing Cesarean delivery: an observational study
Authors
Wei Yu Yao, MBBS
Shi Yang Li, MBBS
Ban Leong Sng, MBBS
Yvonne Lim, MBBS
Alex Tiong Heng Sia, MBBS
Publication date
01-07-2012
Publisher
Springer-Verlag
Published in
Canadian Journal of Anesthesia/Journal canadien d'anesthésie / Issue 7/2012
Print ISSN: 0832-610X
Electronic ISSN: 1496-8975
DOI
https://doi.org/10.1007/s12630-012-9718-4

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