[A case report of surgical treatment of dissecting aneurysm of the thoracic aorta (DeBakey IIIb) with chronic renal failure].

The patient has been receiving hemodialysis (H.D.) for chronic renal failure due to polycystic kidney since last February. He suddenly had back pain and short of breath February 8, 1988. He was pointed out to have hypertension and cardiomegaly on chest roentgenogram. He was transferred to our hospital, and suspected dissecting aneurysm. Magnetic resonance imaging was useful for the diagnosis of the dissecting aneurysm and may have a potential advantage in following up the residual false lumen. The patient underwent graft inclusion technique for dissecting aneurysm of the thoracic aorta of type IIIb with an aid of partial femoro-femoral bypass. The water and electrolytes balances were controlled by GI therapy and hemoconcentrator during operation. Since serum potassium level was gradually increasing up to 7.8 mEq/l inducing arrhythmias with coronary arterial spasm postoperatively, H.D. was instituted. The induction of H.D. was easily performed with satisfactory results. Heparin was not used while blood coagulation profiles tended to be low in early postoperative period. He returned to his work this August.