Aorto-caval fistula after lumbo-sacral disk surgery.

A patient with an aorta-caval fistula after intervertebral disk surgery is presented. Deterioration of the condition of the patient, mainly due to a progressive congestive heart failure, was caused by a large aorto-caval fistula; emergency repair of the lesion led to complete recovery. Because of delay in diagnosis, this insidious complication generally causes serious cardiopulmonary disturbances with a high morbidity and a significant mortality. The surgical treatment consists of the reconstruction of the greater veins and arteries involved.