[A case of ruptured cerebral aneurysm associated with coarctation of the aorta].

A 15-year-old boy with subarachnoid hemorrhage was planned for emergency cerebral aneurysm clipping under general anesthesia. He had different blood pressure between the upper limbs and we found coarctation of the aorta at left subclavian artery bifurcation in the preoperative angiography. To prevent re-rupture of cerebral aneurysm and ischemia of abdominal organs, we monitored arterial blood pressure in bilateral radial arteries and non-invasive blood pressure in the left thigh, and his blood pressure was maintained within 120-150 mmHg of systolic pressure in the right radial artery and 50-70 mmHg of mean arterial pressure in the left radial artery and the left thigh during general anesthesia. The preoperative period elapsed uneventfully and the patient was planned for repair of coarctation of the aorta after discharge.