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心脏收缩时间间期(简称心缩间期,STI)的测定被认为是一种敏感的、易重复测定的、标志左室功能损害程度的临床定量指标,它与核素心血管造影、超声心动图,成为十余年来蓬勃发展的三个非创伤性左室功能测定方法。近年来STI测定主要应用于以下四个方面:①判定左室功能,并可在床旁对重危病人的心脏功能进行连续观察,以了解病情转归。②早期或辅助诊断某些疾病以及估计预后。目前已用于冠心病,克山病,先心病,糖尿病,甲亢等。③作为评价各种治疗方法和药物疗效的一种指标。④了解各种状态和因素对心室功能的影响。目前国内对STI的测定结果和临床应用价值尚有争议,现结合我们的经验对此加以论述。
The duration of systole (STI) is considered to be a sensitive and easily determinable clinical quantitative marker of left ventricular dysfunction. It is associated with radionuclide angiography, echocardiography, Figure, a more than ten years to develop three non-invasive method of left ventricular function test. STI determination in recent years, mainly used in the following four aspects: ① determine the left ventricular function, and bedside in patients with severe heart function continuous observation to understand the outcome of the disease. ② early or auxiliary diagnosis of certain diseases and prognosis. Has been used for coronary heart disease, Keshan disease, congenital heart disease, diabetes, hyperthyroidism. ③ as an evaluation of various treatment methods and drug efficacy of an indicator. ④ understand the various states and factors on the ventricular function. At present, there is still controversy about the measurement results and clinical application value of STI in our country, and this is discussed in combination with our experience.