Pulmonary complications in the morbidly obese following jejunoileal bypass surgery under narcotic anesthesia.

The postoperative pulmonary complications detected by chest roentgenogram were correlated with the age, body weight, excess weight/ideal body weight, results of spirometry, arterial blood gas values and duration of anesthesia in 99 obese patients (mean weight 146.8 kg) who underwent jejunoileal bypass surgery under narcotic anesthesia. The overall postoperative pulmonary complication rate was 25.