One-lung intubation (OLI) is among the most common complications of endotracheal intubation. None of the monitoring tools now available has proved effective for its early detection. In this study we investigated the efficacy of acoustic analysis for the detection of OLI. We collected lung sounds from 11 patients undergoing thoracic surgery requiring the placement of a double-lumen tube. Recordi...

AUTO–positive end-expiratory pressure (auto-PEEP) is well described in patients with expiratory airflow obstruction, including those who require one-lung ventilation. Unfortunately, detecting auto-PEEP with most anesthesia ventilators is difficult. We report an unusual presentation of auto-PEEP during one-lung ventilation in which a reliable method of confirming lung separation quickly directed...