TUR-Pのため抗血小板薬投与中止後に発生した薬物溶出性ステント内血栓症

Thrombosis in drug-eluting coronary stents after transurethral resection of the prostate

　症例は73歳，男性。2005年10月に不安定狭心症にて，左前下降枝に2本，右冠動脈に1本薬物溶出性ステントを留置。2007年7月30日，尿閉にて入院。同日よりチクロピジン中止。前立腺肥大症の診断にて8月6日，経尿道的前立腺切除術施行。8月10日，突然胸痛出現。冠動脈造影にて晩期血栓性閉塞と診断された。血栓吸引後バルーンにて拡張し，良好な再還流が得られた。

　A 73-year-old man with unstable angina underwent percutaneous intervention with two drug-eluting stents in the left anterior descending artery in October,2005. One month later,the patient underwent elective stenting of right coronary artery with one drug-eluting stent and became subsequently asymptomatic. He was admitted to our hospital with urinary retention in July 30,2007. Cyclamate pidgin was discontinued on the same day and transurethral resection of the prostate was performed in August 6. Eleven days after discontinuation of cyclamate pidgin,chest pain occurred suddenly. Coronary angiography demonstrated late thrombosis in stent. Percutaneous intervention restored vessel patency.