Relationship between doppler-derived left ventricular diastolic function and exercise capacity in patients with

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Pulsed Wave Doppler Assessment of Diastolic Dysfunction in the ZSF-1 Rat Model of Pulmonary Hypertension Due to Left Heart Disease
08:57

Pulsed Wave Doppler Assessment of Diastolic Dysfunction in the ZSF-1 Rat Model of Pulmonary Hypertension Due to Left Heart Disease

Published on: May 22, 2026

Y Sakate1, M Yoshiyama, K Hirata

  • 1Department of Internal Medicine and Cardiology, Graduate School of Medicine, Osaka City University, Osaka, Japan.

Japanese Circulation Journal
|July 12, 2001
PubMed

Insights

Doppler echocardiography of left ventricular diastolic function can predict exercise capacity in myocardial infarction patients. Key indices like E/A ratio and deceleration time correlate with peak oxygen consumption, offering insights into cardiac health.

Area of Science:

  • Cardiology
  • Cardiovascular Physiology
  • Diagnostic Imaging

Background:

  • Doppler echocardiography is crucial for assessing left ventricular (LV) diastolic function in cardiac patients.
  • Limited data exists on the correlation between Doppler indices and patient exercise capacity.

Purpose of the Study:

  • To investigate the relationship between Doppler echocardiographic indices of LV diastolic function and exercise capacity in patients with myocardial infarction.

Main Methods:

  • 44 myocardial infarction patients underwent cardiopulmonary exercise testing and 2-D/Doppler echocardiography.
  • Diastolic function assessed via Doppler transmitral flow velocity and pulmonary venous flow velocity.

Main Results:

  • The E/A wave velocity ratio positively correlated with peak oxygen consumption (peak Vo2) (R=0.72).
  • Deceleration time of E velocity (Dct) showed negative correlations with peak Vo2 and anaerobic threshold (AT) (R=-0.65, -0.62).
  • The S/D wave velocity ratio negatively correlated with peak Vo2 (R=-0.58); LV ejection fraction did not correlate with exercise capacity.

Conclusions:

  • Doppler echocardiographic indices of LV diastolic function are significant predictors of exercise capacity in patients with mild cardiac dysfunction.
  • These findings highlight the utility of non-invasive diastolic function assessment for evaluating functional capacity in post-myocardial infarction patients.

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