室性期前收缩患者心室复极储备功能评价

路宁; 姚亚丽; 康宏; 张翔; 苏婷; 党林林

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室性期前收缩患者心室复极储备功能评价

临床研究 | 更新时间：2025-10-15

- 室性期前收缩患者心室复极储备功能评价
- 暂无标题
- 临床心电学杂志 2016年第1期页码：30-34
- 作者机构：
  
  兰州大学第一医院
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： R541.7
- 纸质出版：2016
- 稿件说明：
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路宁, 姚亚丽, 康宏, 等. 室性期前收缩患者心室复极储备功能评价[J]. 临床心电学杂志, 2016,(1):30-34.
路宁, 姚亚丽, 康宏, 等. 室性期前收缩患者心室复极储备功能评价[J]. 临床心电学杂志, 2016,(1):30-34. DOI：

DOI：

摘要

目的探讨QTc间期、QTd、Tp-ec间期、Tp-ed、Tp-e/QT比值对室性期前收缩患者复极储备功能的评价作用。方法入选窦性心律合并室性期前收缩患者229例

根据室性期前收缩后窦性心动周期中QT间期的恢复

将恢复异常者纳入观察组

将恢复正常者纳入对照组

比较组间QTc间期、QTd、Tp-ec间期、Tp-ed、室速发作的差异性;比较组内不同心率下QTc间期的变化;评价QTc间期、QTd、Tp-ec间期、Tp-ed、Tp-e/QT比值对室性期前收缩患者心室复极异常的诊断价值。结果观察组与对照组间性别、年龄、QTd无统计学差异

QTc间期(p=0.010<0.05)、Tp-ec间期(p=0.000<0.05)、Tp-ed(p=0.03<0.05)有统计学差异

室速发作(17例、5例)

发生率(p=0.003<0.05)有统计学差异;观察组、对照组不同心率下QTc间期变化有统计学差异;QTc、Tp-ec、Tp-e/QT比值对复极异常有诊断价值(p<0.05)

QTd、TP-ed、对复极异常无诊断价值(p>0.05)

各指标诊断复极储备异常的最佳界值如下:男性QTc≥458ms

女性QTc≥469ms

Tp-ec≥95ms

TP-e/QT比值≥0.22。结论 QTc、QTd、TP-e、TP-ed、TP-e/QT比值是适用于评价室性期前收缩患者心室复极储备功能异常的无创性指标

结合室性期前收缩后QT间期的动态性变化可提高诊断的准确度。对SCD高危人群的早期诊断及预防性治疗有指导作用。

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