alexa Sore throat or hoarse voice with bronchial blockers or double-lumen tubes for lung isolation: a randomised, prospective trial.
Anesthesiology

Anesthesiology

Journal of Anesthesia & Clinical Research

Author(s): Zhong T, Wang W, Chen J, Ran L, Story DA

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Abstract Double-lumen endotracheal tubes and bronchial blockers allow lung isolation for one-lung ventilation. Few studies, however, directly compare these devices. Further, a new endobronchial blocker (Coopdech) is available in some countries. Our primary hypothesis was that bronchial blockers would be associated with less sore throat or hoarse voice than double-lumen tubes. Secondary outcomes were successful one-lung ventilation and surgical access. In this prospective trial, 120 Chinese patients undergoing elective surgery were randomly assigned to one of four groups of 30 patients: Coopdech blocker, Arndt blocker Univent tube or double-lumen tube. Postoperative sore throat and hoarse voice were assessed in the recovery room and 24 hours after surgery. The incidence and severity of sore throat or hoarse voice was less in the blocker groups than double-lumen tube group: Coopdech 13\%, Arndt 20\%, Univent 30\% and double-lumen tube 60\%, P < 0.001. The blocker groups did not significantly differ P = 0.28. Compared to the double-lumen tubes the bronchial blockers took about two minutes less to position but five minutes longer for lung deflation. Surgical exposure was uniformly good across the four groups. We conclude that clinical use of the Coopdech endobronchial blocker is similar to the Arndt and Univent blockers and that all three are associated with less sore throat or hoarse voice than double-lumen tubes.

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This article was published in Anaesth Intensive Care and referenced in Journal of Anesthesia & Clinical Research

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