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Updated: Jan 26, 2026

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
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P wave peak time: A time window to evaluate left ventricular diastolic function.

Hao-Chih Chang1, Hao-Min Cheng2,3,4

  • 1Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.

Journal of Clinical Hypertension (Greenwich, Conn.)
|April 6, 2019
PubMed
Summary
This summary is machine-generated.

P wave peak time (PWPT) measured via electrocardiography correlates with elevated left ventricular end-diastolic pressure (LVEDP). This non-invasive marker may help assess diastolic function in heart failure patients.

Keywords:
P wave peak timehypertensionleft ventricular diastolic dysfunction

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Area of Science:

  • Cardiology
  • Electrophysiology
  • Cardiac Physiology

Background:

  • Left ventricular (LV) performance and ventriculo-arterial coupling are linked to activation times in heart failure.
  • Elevated intra-atrial pressure, indicated by prolonged P wave peak time (PWPT), is associated with poor prognosis.

Purpose of the Study:

  • To investigate the correlation between P wave peak time (PWPT) and left ventricular end-diastolic pressure (LVEDP).
  • To explore the potential of PWPT as a non-invasive marker for diastolic function assessment.

Main Methods:

  • Utilized conventional surface electrocardiography to measure PWPT.
  • Correlated PWPT with LVEDP obtained through direct measurement during cardiac catheterization.

Main Results:

  • A recent study demonstrated a high correlation between PWPT and LVEDP.
  • Increased PWPT signifies prolonged intra- or inter-atrial conduction and elevated intra-atrial pressure.

Conclusions:

  • PWPT is an easily obtainable electrocardiographic parameter.
  • PWPT shows potential for evaluating diastolic function, pending further validation in diverse populations.