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本文报道应用M型和两维超声心动图(2DE)观察甲状腺机能亢进症(以下简称甲亢)68例。结果示甲亢病人校正的总电机械收缩时间[(Q-S_2)I]、校正的左室喷血时间、(LVETI)校正的喷血前期(PEPI)和喷血前期/左室喷血时间(PEP/LVET)之比值较正常人均明显缩短或减低,表明甲亢病人静息时左室功能呈高动力性表现。68例甲亢病人中有二尖瓣脱垂者29例(42.65%),而对照组80例中仅有9例(10.1%),两组二尖瓣脱垂的发生率有非常显著的差别(P<0.01),甲亢时二尖瓣脱垂发生率增高的原因,可能与甲亢导致的心肌损害有关。
This article reports the use of M-mode and two-dimensional echocardiography (2DE) observed hyperthyroidism (hereinafter referred to as hyperthyroidism) in 68 cases. The results showed that patients with hyperthyroidism corrected for total electrical mechanical contraction time [(Q-S_2) I], corrected left ventricular ejection time, (LVETI) corrected pre-ejection period (PEPI) and pre-ejection / left ventricular ejection time PEP / LVET) ratio was significantly shorter or lower than normal, indicating that hyperthyroidism patients resting at high dynamic performance of left ventricular performance. There were 29 cases (42.65%) of mitral valve prolapse in 68 patients with hyperthyroidism, while there were only 9 cases (10.1%) in 80 cases of control group. There was a very significant difference in the incidence of mitral valve prolapse P <0.01), hyperthyroidism mitral valve prolapse increased the reason may be related to myocardial damage caused by hyperthyroidism.