The predictive value of heart rate variability is independent of other noninvasive measures commonly used to predict prognosis of cardiac diseases, low left ventricular ejection fraction, and so on . like other risk predictors, measures of heart rate variability have modest positive predictive accuracy when used alone . however, combining measures of heart rate variability with other risk predictors yields a positive predictive accuracy of about 50 % 心率变异性的预测价值独立于其他非创伤性预测心脏疾病预后指标(降低的左心室射血分数,频发重复性室性心律失常等),在单独应用时阳性预报率较低,但与其他指标联合应用,阳性预报率可达50。
The predictive value of heart rate variability is independent of other noninvasive measures commonly used to predict prognosis of cardiac diseases, low left ventricular ejection fraction, and so on . like other risk predictors, measures of heart rate variability have modest positive predictive accuracy when used alone . however, combining measures of heart rate variability with other risk predictors yields a positive predictive accuracy of about 50 % 心率变异性的预测价值独立于其他非创伤性预测心脏疾病预后指标(降低的左心室射血分数,频发重复性室性心律失常等),在单独应用时阳性预报率较低,但与其他指标联合应用,阳性预报率可达50。