Unusual complication during pediatric thoracoscopy.

A small infant with congenital cystic adenomatoid was scheduled for thoracoscopic resection of the lung cyst. During carbon dioxide insufflation, there was a sharp rise of endtidal carbon dioxide which was followed by marked hypoxemia and bradycardia due to occlusion of the tracheal tube with blood. The plan changed to open thoracotomy and total pneumonectomy. Despite several reports, which addressed successful thoracoscopic cystic lung resection, its safety remain to be determined.