Selective left bronchial intubation for the treatment of pulmonary pseudocyst in the very premature infant.

Selective intubation of the left mainstem bronchus was accomplished successfully to treat a large pseudocyst of interstitial air in the right lung of an 890-g premature infant. The tube was left in place for 30 hours. Without the use of cutaneous oxygen monitoring to constantly evaluate the oxygenation of the baby and consequently, the correct position of the tube, this probably could not have been accomplished in such a small infant.