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Assessment of atrial conduction time in patients with essential hypertension

Mehmet Yunus Emiroglu1, Mustafa Bulut, Müslim Sahin

  • 1Department of Cardiology, Kartal Kosuyolu Cardiovascular Research and Training Hospital, Istanbul, Turkey. yunusemiroglu@hotmail.com

Journal of Electrocardiology
|March 1, 2011
PubMed

Insights

Essential hypertension is linked to prolonged atrial conduction times, specifically interatrial electromechanical delay and P-wave dispersion. These findings may explain the higher incidence of atrial fibrillation in hypertensive patients.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Hypertension Research

Background:

  • Essential hypertension is a significant risk factor for cardiovascular complications.
  • Atrial conduction abnormalities are increasingly recognized in hypertensive individuals.

Purpose of the Study:

  • To evaluate atrial conduction parameters in patients diagnosed with essential hypertension.
  • To investigate the relationship between hypertension and atrial electromechanical delay and P-wave dispersion.

Main Methods:

  • A cohort of 80 hypertensive patients and 80 controls underwent assessment.
  • Key measurements included atrial electromechanical coupling (PA), intra- and interatrial electromechanical delay (AEMD), and P-wave dispersion (Pd).
  • Tissue Doppler echocardiography and surface electrocardiogram (ECG) were utilized for measurements.

Main Results:

  • Hypertensive patients exhibited significantly longer atrial electromechanical coupling durations at both septal and lateral mitral annuli compared to controls.
  • Interatrial and intraatrial electromechanical delays were markedly prolonged in the hypertension group.
  • Maximum P-wave duration and P-wave dispersion were significantly higher in patients with hypertension.

Conclusions:

  • Prolonged interatrial electromechanical delay and P-wave dispersion are evident in patients with essential hypertension.
  • A significant correlation was observed between interatrial electromechanical delay and P-wave dispersion.
  • These prolonged conduction times may contribute to the elevated risk of atrial fibrillation in hypertensive individuals, warranting further prospective investigation.
Abstract

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