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本院393例连续作二维+M型超声心动图的病儿左室假腱索(LVFT)检出率21.9%((?)6例)。其中33例心律失常者检出率84.8%,且多为室早。14例早搏作运动试验:运动后室早消失10例、无变化1例,房早仅1例减少,无变化2例。86例LVFT中无器质性心脏病但有心前区1～3/6级收缩期杂音者占68.6%,而无LVFT的307例中无器质性心脏病而有同样杂音者占36.5%。提示LVFT可能为功能性室早及心前区1～3/6级收缩期杂音的重要原因之一。
The detection rate of LVFT in 393 consecutive patients with 2D + M type echocardiography was 21.9% ((?) 6). Among them, the detection rate of 33 cases of arrhythmia was 84.8%, and mostly as early as room. 14 cases of premature beats exercise test: 10 cases of early disappearance of exercise room, no change in 1 case, only 1 case of early reduction, no change in 2 cases. There were 68.6% of the 86 patients without organic heart disease in LVFT but 1 ~ 3/6 systolic murmur in the precordial area, and 307 patients without LVFT had no organic heart disease and 36.5% of the same noise. It is suggested that LVFT may be one of the important causes of systolic murmur in functional precordial and precordial 1 ~ 3/6 systolic murmur.