高血压病左室肥厚QT离散度与心率变异性分析  

Analysis of QT interval dispersion and heart rate variability in hypertension with left ventricular hypertrophy

作　　者：屈家祥 黄小平[2] 刘红 彭振超 

机构地区：[1]广东珠海市医疗中心心内科,519000 [2]广东省人民医院心内科

出　　处：《临床心血管病杂志》1998年第4期208-210,共3页Journal of Clinical Cardiology

摘　　要：目的；探讨高血压病左室肥厚（LVH）与QT离散度（QTd）、心率变异性（HRV）的关系。方法：测量70例高血压非LVH（组Ⅰ）、62例高血压病LVH患者（组Ⅱ）和80例健康人（组Ⅲ）的QTd与校正的QTd（QTcd）及心率变异指数（HRVI），并对各组进行比较分析。结果：组ⅡQTd、QTcd较组Ⅰ、Ⅲ显著延长（均P＜0．01），组ⅠHRVI较组Ⅲ显著减低（P＜0．01），组Ⅱ较组Ⅰ、Ⅲ的HRVI显著减低（均P＜0.01）。结论：高血压病LVH的发生及其易出现各种并发症的原因可能与其QTd、QTcd的延长及HRVI的减低有关。Objective: To detect the relationships between left ventricular hypertrophy(LVH),QT interval dispersion (QTd) and heart rate variability(HRV) in patients with essential hypertension (EH ). Methods: The QTd,corrected QTd (QTcd) and HRV index(HRVI) were measured in 70cases of EH without LVH(group Ⅰ), 62 cases of EH with LVH(group Ⅱ) and 80 healthy people(group Ⅲ). The relatlonships of above variables amony the groups were analyzed. Results: TheQTd,QTcd in group Ⅱ were significantly prolonged then in group Ⅰ and Ⅲ (P＜0.01). HRVIwas significantly deereased in group Ⅰ compared with group Ⅲ (P＜0.01),while in group Ⅱ,HRVI was signiticantly decreased then in group Ⅰ and Ⅲ (P＜0.01). Conclusion: In EH withLVH, the occurrence of complications was related to the prolongation of QTd,QTcd and decreasingof HRVI.

关 键 词：高血压 左室肥厚 QT离散度 心率变异性 

分 类 号：R544.104[医药卫生—心血管疾病] R541.304[医药卫生—内科学]