Heart rate-corrected QT interval duration is significantly associated with blood pressure in Chinese hypertensives

Shaojie Peng, Yunxian Yu, Ke Hao, Houxun Xing, Dong Li, Changzhong Chen, Aiqun Huang, Xiumei Hong, Yan Feng, Yan Zhang, Jianping Li, Binyan Wang, Di Wu, Xiaobin Wang, Xiping Xu

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction: Many studies demonstrated that a prolonged heart rate-corrected QT interval (QTc) increases the risk of malignant ventricular arrhythmias and sudden death. Methods: We measured the electrocardiogram and blood pressure of 1480 hypertensive patients and assessed the relationship between the length of QTc and blood pressure. Results: The mean QTc is longer in female than in male participants. There was a positive association between QTc and blood pressure in both men and women. The estimated increase in systolic and diastolic blood pressure for each 100-millisecond increase in QTc was 6.4 and 5.0 mm Hg in men and 3.7 and 2.5 mm Hg in women, respectively. Conclusion: Our study demonstrated a significant positive relationship between the QTc interval and baseline blood pressure in a Chinese hypertensive population.

Original languageEnglish (US)
Pages (from-to)206-210
Number of pages5
JournalJournal of Electrocardiology
Volume39
Issue number2
DOIs
StatePublished - Apr 2006
Externally publishedYes

Keywords

  • Association
  • Blood pressure
  • ECG
  • Epidemiology
  • Essential hypertension
  • QTc interval

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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