Abstract
BackgroundFew studies examined time-to-time changes of cuff pressure of an endotracheal tube during surgery. We retrospectively analyzed the changes of cuff pressure during thyroid surgery and examined its relationships with postoperative airway complications.Case presentationCuff pressure was initially adjusted at 26 cmH2O and continuously measured in 61 patients. The cuff pressure-time curve dynamically fluctuated, and exceeded 30 cmH2O in all patients, whereas decreased to ≤ 20 cmH20 in 42 (69%) patients. Ratio of the period with such an increase and decrease of cuff pressure to the total duration of surgery were 40% (28–66%) and 9% (0–21%), respectively (median, interquartile range). No patients showed symptoms of airway stenosis requiring treatment except one who developed recurrent laryngeal nerve palsy. No patients had lower respiratory tract infection.ConclusionsCuff pressure dynamically fluctuated during thyroid surgery. Preventing an increase as well as decrease of cuff pressure is required.
Highlights
Few studies examined time-to-time changes of cuff pressure of an endotracheal tube during surgery
Cuff pressure dynamically fluctuated during thyroid surgery
We retrospectively examined cuff pressure which was continuously measured during thyroid surgery at Sendai City Hospital from 2016 to 2019
Summary
Few studies examined time-to-time changes of cuff pressure of an endotracheal tube during surgery. We retrospectively analyzed the changes of cuff pressure during thyroid surgery and examined its relationships with postoperative airway complications. Case presentation: Cuff pressure was initially adjusted at 26 cmH2O and continuously measured in 61 patients. The cuff pressure-time curve dynamically fluctuated, and exceeded 30 cmH2O in all patients, whereas decreased to ≤ 20 cmH20 in 42 (69%) patients. The importance of maintaining optimal endotracheal tube cuff pressure by continuous measurement has been recognized in the field of intensive care [1]. Endotracheal tube cuff pressure has been reported to increase, but not decrease, during thyroid surgery [2].
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