摘要
目的：探讨高血压病患者左室肥厚与ＱＴ离散度的关系。方法：７０例高血压病患者，分为左室肥厚组（ｎ＝ ３１）及无左室肥厚组（ｎ＝ ３９），用超声心动图测量左室重量（ＬＶＭ）及左室重量指数（ＬＶＭＩ）。从１２ 导联心电图同步测量ＱＴ离散度（ＱＴｄ）、ＱＴｃｄ 并分析两者间相互关系。结果：高血压伴左室肥厚者ＱＴｄ 及ＱＴｃｄ 较无左室肥厚者明显增大（Ｐ均＜ ０．０１）；高血压Ⅰ期、Ⅱ期、Ⅲ期之间比较，显示：Ⅱ、Ⅲ期与Ⅰ期相比，Ｐ 均＜ ０．０１；Ⅱ期与Ⅰ期相比，Ｐ＞ ０．０５。左室肥厚伴室性心律失常者ＱＴｄ 及ＱＴｃｄ 与无心律失常者两组相比，Ｐ均＜ ０．０１。结论：高血压病患者伴左室肥厚组ＱＴｄ 及ＱＴｃｄ 比无左室肥厚组明显增大。左室肥厚组伴室性心律失常比无室性心律失常组明显增大。高血压Ⅲ期与Ⅰ、Ⅱ期患者ＱＴｄ 及ＱＴｃｄ 相比，差别有显著性，Ｐ均＜ ０．０１；ＱＴｄ 与ＬＶＭＩ两者呈正相关（ｒ＝ ０．４，Ｐ＜ ０．０５）
Objective: To evaluate the relationship between left ventricular hypertrophy (LVH) and QT dispersion in the hypertensive patients. Methods: Authors studied 70 cases of hypertensive patients by using ultrasound to determine left ventricular mass (LVM) and LVM index (LVMI). The patients were divided into two groups which were LVH (n=31) and no LVH (n=39). Authors also studied the QT dispersion (QTd) and correct QTd (QTcd) as well as their association with LVH from 12 lead standard ECG. Results: (1) The group of hypertension with LVH showed a longer QTd and QTcd than that of hypertension without LVH, P<0.01; (2) Compared with the first (Ⅰ) and the second (Ⅱ) stages, the third (Ⅲ) stage hypertension showed a longer QTd and QTcd, P<0.01, (3) The group of LVH with ventricular arrhythmia (VA) also showed longer QTd and QTcd than that of LVH without VA, P<0.01. Conclusion: QTcd have predictive and prognostic significance for hypertension with LVH and LVH with ventricular arrhythmia.
出处
《新疆医科大学学报》
CAS
1999年第4期272-274,共3页
Journal of Xinjiang Medical University
关键词
高血压
左室肥厚
QT离散度
hypertension
left ventricular hypertrophy
QTd
