膀胱全摘除術後，腎動脈塞栓術後に肺塞栓症にて急死したと考えられる2例

Two Cases of Sudden Death caused by Pulmonary Embolism following Cystectomy and Angioembolization

　症例1は膀胱全摘除術翌日に，症例2は腎動脈塞栓術翌日に，体位変換時に突然の呼吸困難を訴え，発症より1時間以内に呼吸停止，心停止をきたした。双方とも深部静脈血栓症より肺塞栓を生じたと考えられる。肺塞栓症は致命的な疾患であり，予防，早期診断が重要である。欧米では合併症としての肺塞栓症が多く予防的前処置が当然になっている。日本でも肺塞栓症の頻度が急増しており，泌尿器科手術の前にも予防処置が必要と考える。

The first case was a 58-year-old man who had total cys-tectomy with the construction of ileal neobladder for blad-der cancer. His general condition was good in the morning on the first postoperative day. Shock and dyspnea developed rapidly when he sat up from the supine position resulting cardiac and respiratory arrest within one hour from the onset. The second case was a 46-year-old man who had unresectable renal tumor with metastasis of the humerus. Angioembolization was performed through the right femoral artery by Seldinger method. Compression hemostasis was released in the morning on the next day.