Systemic artery-to-pulmonary artery fistula. A new therapeutic approach.

A patient with systemic artery-to-pulmonary artery fistulae is described. Historically, all therapy of this type of lesion has been surgical. We describe a new mode of treatment, therapeutic embolization, which obviates surgical intervention and its attendant risks. Embolization is an alternative to surgery that should be considered in selected cases.