[Fiber bronchoscopy as an aid in placing and monitoring double lumen tubes in thoracic anesthesia].

100 thoracic surgery patients were intubated by means of a left-hand Broncho-Cath PVC Double-Lumen Tube (DLT) and 10 further patients with a right-hand tube. In 76 of the 100 left-hand DLT's safe conventional placement of the tube was successful, oriented exclusively by auscultation findings and positive pressure respiration. However, fibre-optic control showed that only 44 of these tubes were correctly positioned (57.