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Fig. 1 | BMC Anesthesiology

Fig. 1

From: Effect of thermal softening of double-lumen endobronchial tubes on postoperative sore throat in patients with prior SARS-CoV-2 infection: a randomized controlled trial

Fig. 1

The thermal softening process for the DLT. (A) The distal portion of the DLT was placed in a sterile saline solution bottle, and the bottle was kept on a constant temperature kettle whose temperature could be adjusted. (B) The constant temperature kettle was covered with a layer of cloth to blind hospital staff regarding group allocation

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BMC Anesthesiology

ISSN: 1471-2253

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