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Tako-tsubo心肌病,是指患者具有急性冠状动脉综合征表现而冠状动脉正常。发病前常有情绪或机体应激。临床症状为突发胸痛,新出现的心电图改变;一过性的室壁运动异常和左心室射血分数明显降低。心肌酶通常正常或轻度升高。潜在的机制可能包括:冠状动脉多支血管痉挛;冠状动脉微循环功能障碍或痉挛;儿茶酚胺介导的心肌功能障碍等。
Tako-tsubo cardiomyopathy, refers to patients with acute coronary syndrome and normal coronary arteries. Before the onset of emotional or physical stress. Clinical symptoms of sudden chest pain, new ECG changes; transient wall motion abnormalities and left ventricular ejection fraction decreased significantly. Myocardial enzymes are usually normal or slightly elevated. Potential mechanisms may include: multivessel coronary artery spasm; coronary microcirculation dysfunction or spasticity; catecholamine-mediated myocardial dysfunction and the like.