[New technique for identification of the pulmonary segment using high frequency jet ventilation and bronchofiberscopy].

We report a simple and quick technique for the identification of the pulmonary segment using high frequency jet ventilation and bronchofiberscopy. During the pulmonary segmentectomy, we inserted a bronchofiberscope connected with the jet ventilator into endobronchial tube and inflated the pulmonary segment to be removed. This technique provided the clear identification of the pulmonary segment, but it can cause the barotrauma by hyperinflation and an expansion of an inappropriate other segment. During the inflation of the pulmonary segment, we have to pay close attention to the signs of pulmonary hyperinflation in close cooperation with operators.