2011, Number 4
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ABSTRACTObjective: To assess the frequency of postextubation stridor in patients with a cuff leak volume ≤ 17%.
Methods: Observational study. In our standard protocol, it was performed a measure of cuff leak volume before extubation. Then, the patients were divided into two groups; those with a cuff leak ≤ 17% (Group A) and those with ≥ 18% (Group B), after that the patients were extubated and observed for presence or abcense of the complication. Statistical analysis was done with X square test.
Results: We studied 103 patients in consecutive manner. 31 had cuff leak volume ≤ 17% and of this 41.9% (13/31) had postextubation stridor. In the 13 patients with the complication, 7 needed emergency intubation.
In the group B we had 72 patients in whom we found a decreased frequency of the complication, being observed in only 4 patients.
The statistical analysis demonstrated both variables cuff leak volume and stridor to be associated with p = 0.005.
Conclusion: In patients with a cuff leak volume ≤ 17% there is an increased frequency of postextubation stridor and an emergency procedure in airway when compared in patients with larger leaks who also showed to have a safer extubation.
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