Chu P H, Ko Y L, Liao W B, Chiang C W
Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan, R.O.C.
Changgeng Yi Xue Za Zhi. 1996 Sep;19(3):264-7.
Intracavitary metastasis causing right ventricular outflow tract (RVOT) obstruction is very rare. Combination of cardiac tamponade with RVOT obstruction due to intracavitary metastasis has never been reported in the literature. Herein, we report a case of colonic carcinoma with sudden onset of severe dyspnea. Echocardiography detected cardiac tamponade as well as a huge intracavitary mass obstructing the RVOT. Pericardiocentesis and surgical resection of the right ventricular mass were performed but the patient died during operation. Thus, the combination of intracavitary RVOT obstruction and cardiac tamponade in a patient with carcinoma suggests extensive myocardial and pericardial involvement with a poor prognosis.
腔内转移导致右心室流出道（RVOT）梗阻非常罕见。文献中从未报道过因腔内转移导致心脏压塞合并RVOT梗阻的情况。在此，我们报告一例结肠癌患者突然出现严重呼吸困难。超声心动图检测到心脏压塞以及一个巨大的腔内肿块阻塞RVOT。进行了心包穿刺和右心室肿块的手术切除，但患者在手术过程中死亡。因此，癌症患者出现腔内RVOT梗阻和心脏压塞提示心肌和心包广泛受累，预后不良。
