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Prediction parameters of left ventricular diastolic dysfunction improvement in patients after acute coronary syndrome

Marija Bjelobrk1,2, Tatjana Miljković1,2, Aleksandra Ilić1,2

  • 1Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia.

Acta Clinica Belgica
|August 24, 2022
PubMed

Insights

Comprehensive cardiac rehabilitation (CCR) significantly improves left ventricular diastolic dysfunction (LVDD) in acute coronary syndrome (ACS) patients. Key factors for improvement include CCR participation, E/A ratio, and hemoglobin levels.

Area of Science:

  • Cardiology
  • Cardiovascular Rehabilitation
  • Diabetology

Background:

  • Acute coronary syndrome (ACS) often leads to left ventricular diastolic dysfunction (LVDD).
  • Percutaneous coronary intervention (PCI) is a common treatment for ACS, but residual LVDD can impact patient outcomes.
  • Comprehensive cardiac rehabilitation (CCR) is a multidisciplinary approach to improve cardiovascular health.

Purpose of the Study:

  • To evaluate the effectiveness of CCR in improving LVDD in patients post-ACS treated with PCI.
  • To identify key parameters influencing LVDD improvement following CCR.
  • To develop a predictive model for LVDD improvement in this patient population.

Main Methods:

  • Eighty-five patients post-ACS and PCI were divided into an intervention group (N=56) attending CCR and a control group (N=29).
  • Echocardiography and cardiopulmonary exercise testing (CPET) were performed at baseline and after 12 weeks.
  • Multivariate binary logistic regression was used to identify significant predictors of LVDD improvement.

Main Results:

  • A significant improvement in LVDD was observed in 39.3% of patients in the CCR intervention group, compared to only 3.4% in the control group (p < 0.001).
  • Multivariate analysis identified CCR participation, E/A ratio, and hemoglobin levels as key factors for LVDD improvement.
  • A predictive model for LVDD improvement demonstrated high accuracy (Area=0.9, sensitivity=87.0%, specificity=85.5%).

Conclusions:

  • CCR is an effective non-pharmacological strategy for enhancing LVDD and functional capacity in ACS patients post-PCI.
  • The developed statistical model can aid in predicting clinical benefits of CCR in this patient cohort.
  • Further research may explore optimizing CCR protocols based on identified predictive parameters.
Abstract

Keywords:
Cardiac rehabilitationcoronary artery diseasediastolic dysfunctionechocardiographyexercise testing

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