[Catheter-in-catheter replacement technique for bronchial arterial continuous infusion therapy for pulmonary...

The purpose of this study was to improve tumor effects and to reduce side effects caused by one shot bronchial arterial infusion therapy for pulmonary malignancies. The catheter-in catheter replacement technique in proper bronchial artery was introduced for infusion therapy for several hours for this purpose. Three kinds of combination of catheters were selected and the duration of replacement in bronchial artery was either eight or 24 hours. In eight patients of 12 patients with pulmonary malignancies superselective bronchial arterial infusion was carried out through the inner small catheter. No significant complications developed either at the time of replacement or during continuous infusion.