Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure

惠海鹏; 许顶立; 李琦

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Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure

Updated：2026-03-12

- Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure
- Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure
- 解放军医学杂志（英文版） 2003年第1期页码：42-44
- Affiliations：
  
  1. Division of Cardiology
  2. Navy General Hospital of PLA
  3. Nanfang Hospital
  4. First Military Medical University
  5. First Military Medical University Beijing,100037
  6. ,Guangzhou,510515
- Author bio：
- Funds：
- DOI：
  中图分类号： R541.61
- 纸质出版：2003
- Accepted：
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Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure[J]. 解放军医学杂志（英文版）, 2003,(1):42-44.

[1]惠海鹏,许顶立,李琦.Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure[J].Journal of Medical Colleges of PLA,2003(01):42-44.
Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure[J]. 解放军医学杂志（英文版）, 2003,(1):42-44. DOI：

[1]惠海鹏,许顶立,李琦.Effects of 6-minute walk test on the QT dispersion in patients with congestive heart failure[J].Journal of Medical Colleges of PLA,2003(01):42-44. DOI：

摘要

Abstract

<正> Objective: To investigate the clinical value of QT dispersion （QTd） and the effects of 6-minute walk test （6-MWT） mimicking the patients’daily activities on QTd in patients with congestive heart failure （CHF）. Methods: Twenty-eight CHF patients and 22 normal subjects participated these study

who all completed 6-MWT without developing severe arrhythmias. Before and after 6-MWT

standardized 12-lead surface ECGs were obtained to measure QTd and corrected QTd （QTcd）. Results: Both before and after 6-MWT

the QTd and QTcd in CHF patients were longer than those in the controls （ P < 0. 001）

and QTd and QTcd after 6-MWT were significantly shorter than those before 6-MWT in CHF patients （ P = 0. 007

and 0. 018）. There was no significant difference in the measurement in the control group. Conclusion: QTd and QTcd are longer in CHF patients than in normal subjects. Moderate exercise may improve the inhomogeneity of ventricular repolarization dispersion in CHF patients.

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