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To the Editor,
In reference to the article published by Miao et al.,1 we would like to provide further insight into the practices of cuff pressure manometry in the context of the Canadian Anesthesiologists’ Society (CAS) guidelines.2 Miao demonstrated that 33/113 (29%) of endotracheal tube (ETT) cuffs and 8/14 (57%) of supraglottic airway (SGA) cuffs exceeded the recommended maximum pressures of 30 cmH2O and 60 cmH2O, respectively.3,4 Palpation of the pilot balloon was reported as the most common method to determine appropriate ETT cuff pressure. Fifty of 66 respondents (76%) reported using cuff manometry less than once per month.
We conducted a two-part study: 1) a prospective evaluation of intraoperative ETT and SGA cuff pressures at four Saskatchewan hospitals, and 2) a Canada-wide survey of anesthesiologists’ airway cuff management practices (see eAppendix, available as Electronic Supplementary Material). Research ethics board approval for both projects was obtained from the Regina...
The researchers gratefully acknowledge the assistance of the Saskatoon Health Region and the Regina Qu’Appelle Health Region. We also acknowledge the support of Dr. David Campbell and Dr. Theo LeRoux as the anesthesiology department heads in Saskatoon and Regina.
Conflict of interest
Commercial or non-commercial affiliations that are or may be perceived to be a conflict of interest with the work for each author; and any other associations, such as consultancies: No author has any commercial or other affiliations that are, or may be perceived to be, a conflict of interest.
This submission was handled by Dr. Gregory L. Bryson, Deputy Editor-in-Chief, Canadian Journal of Anesthesia.
Funding provided by the Department of Anesthesiology, Perioperative Medicine and Pain Management at the University of Saskatchewan for survey distribution to Canadian Anesthesiologists’ Society members.
- 2.Dobson G, Chong M, Chow L, et al. Guidelines to the Practice of Anesthesia - Revised Edition 2018. Can J Anesth 2018; 65: 76-104.Google Scholar