Intravenous indocyanine green injection is useful for the identification of the intersegmental border by infrared thoracoscopy during anatomic segmentectomy. However, surgeons encounter cases in which visualization of the intersegmental border is difficult. In particular, intravenous indocyanine green fluorescence in the upper lobe is occasionally obscured by to the relatively lesser blood flow in the upper lobe pulmonary arteries. This report describes an interlobar pulmonary artery compression method that is a simple and effective technique for clearly visualizing the intersegmental border through infrared thoracoscopy with intravenous indocyanine green during upper lobe segmentectomy.
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