Kawano Hiroyuki, Terasaki Tadashi, Hashimoto Yoichiro, Oe Masahiro, Hirano Teruyuki, Uchino Makoto
Department of Neurology, Kumamoto City Hospital.
Rinsho Shinkeigaku. 2005 May;45(5):383-5.
We report here a 50-year-old man on maintenance hemodialysis who presents right hemiparesis, aphasia. MRI diffusion weighted image showed an increased signal intensity in the area of the left middle cerebral artery. Transthoracic and transesophageal echocardiography revealed a mitral annular calcification (MAC) with a mobile component. After treated with heparin, follow-up echocardiography demonstrated a decrease in the size of the mobile component, but not disappeared. Intraoperative findings showed calcified attachment on the posterior mitral valve. This patient was diagnosed as having cardioembolic stroke due to a MAC with a mobile component.
我们在此报告一名50岁维持性血液透析患者,出现右侧偏瘫、失语。MRI弥散加权成像显示左侧大脑中动脉区域信号强度增加。经胸和经食管超声心动图显示二尖瓣环钙化(MAC)伴有一个可移动成分。使用肝素治疗后,随访超声心动图显示可移动成分的大小减小,但未消失。术中发现二尖瓣后叶有钙化附着。该患者被诊断为因伴有可移动成分的MAC导致的心源性栓塞性卒中。