校正Q-T间期在诊断心脏自主神经功能损害中的价值探讨

Diagnostic value of corrected QT interval in patients with cardiac autonomic neuropathy

目的探讨校正Q-T间期(QTc)在心脏自主神经功能损害中的诊断价值。方法采用Ewing法对86例患者进行心脏自主神经功能检查并据此分为心脏自主神经功能损害组及非心脏自主神经功能损害组,比较两组间QTc的差异,同时分析QTc与心脏自主神经功能损害程度之间的相关性。结果心脏自主神经功能损害组的QTc[(429±22)ms]与非心脏自主神经功能损害组[(397±14)ms]相比显著延长,且QTc与心脏自主神经功能损害程度之间呈正相关。结论 QTc在诊断心脏自主神经损害中具有重要的参考价值。

Objective To investigate the diagnostic value of corrected QT interval in patients with cardiac autonomic neuropathy.Methods 86 patients with Eving＇s methodology and were studied and divided into cardiac autonomic neuropathy group and non-cardiac autonomic neuropathy group.The difference of QTc was then compared and the relationship between QTc and the severity of cardiac autonomic neuropathy were analyzed.Results The QTc of cardiac autonomic neuropathy group [（437±25） ms] was significantly prolonged than that of non-cardiac autonomic neuropathy group [（387±11） ms].Moreover,the QTc interval was positively correlated with the severity of cardiac autonomic neuropathy.Conclusion The QTc interval has considerable reference value in the diagnosis cardiac autonomic neuropathy.