Background: To discuss whether decreasing the pressure of endotracheal tube cuff slowly with a constant speed can decrease the incidence of coughing during extubation.
Methods: Ninety patients undergoing elective noncardiac surgery under general anesthesia with endotracheal intubation were randomly divided into two groups: group P, the pilot balloon was connected to a syringe and an aneroid manometer through a three-way stopcock, respectively, and the decrease of cuff pressure was controlled at 3 cmHO/s during deflating before extubation; group C, the pressure in endotracheal tube cuff was decreased suddenly with a syringe extracting the air from the cuff rapidly at once exactly before extubation. The incidence of coughing during extubation period was recorded. Mean arterial pressure (MAP) and heart rate (HR) were recorded before general anesthesia induction (T0), just before cuff deflation (T1), immediately after deflation (T2), at 1 min (T3), 3 min (T4), and 5 min after extubation (T5). The occurrence of adverse reactions was also recorded.
Results: The initiation of coughing during extubation period occurs at immediately the time of balloon deflation. Compared with group C, the incidence of coughing was significantly decreased (P = 0.001), MAP and HR were significantly decreased at T2-T4 and T2-T5, respectively (P < 0.05 for all), and the incidence of pharyngolaryngeal discomfort after extubation was significantly reduced (P = 0.021) in group P.
Conclusions: Decreasing the pressure of endotracheal tube cuff slowly with a constant speed can significantly reduce the incidence of coughing during extubating period, stabilize hemodynamics, and reduce the incidence of adverse reactions.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11441075 | PMC |
| http://dx.doi.org/10.1186/s13741-024-00450-3 | DOI Listing |
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