Related Experiment Video
Updated: May 25, 2026

Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
Published on: April 17, 2021
Effect of elective percutaneous coronary intervention on left ventricular function in patients with coronary artery
Younes Nozari1, Nader Jangi Oskouei, Zahra Khazaeipour
1Department of Cardiology, Tehran Heart Center, Tehran University of Medical Sciences, Iran.
Insights
Percutaneous coronary intervention (PCI) improved left ventricular (LV) systolic and diastolic function in patients with coronary artery disease. Echocardiography showed enhanced ejection fraction and reduced diastolic dysfunction after PCI.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Coronary artery disease (CAD) is a leading global cause of death.
- Treatment options include medication, coronary artery bypass graft (CABG), and percutaneous coronary intervention (PCI).
Purpose of the Study:
- To evaluate the impact of PCI on left ventricular (LV) systolic and diastolic function using echocardiography.
- To assess changes in LV function before and after PCI in CAD patients.
Main Methods:
- 115 patients with CAD undergoing PCI were enrolled.
- Echocardiography was performed pre-PCI, post-PCI (1 day), and 3-6 months later.
- LV systolic (ejection fraction) and diastolic functions were measured and analyzed.
Main Results:
- Mean ejection fraction (EF) increased from 40.52% pre-PCI to 44.0% at 3-6 months post-PCI.
- Mild to moderate diastolic dysfunction improved significantly post-PCI, with 74% of patients showing improvement.
- Diastolic function remained improved at the 3-6 month follow-up.
Conclusions:
- PCI effectively improves LV systolic function, indicated by increased ejection fraction.
- PCI leads to significant improvement in LV diastolic function in patients with coronary artery disease.
- The positive effects of PCI on LV function are sustained for at least 3-6 months post-procedure.
Abstract:
Coronary artery disease is one of the most common causes of mortality and morbidity across the world. Its treatment includes medical treatment, coronary artery bypass graft (CABG) and percutaneous coronary intervention (PCI). The purpose of this study was to investigate the effect of PCI on echocardiographic findings of left ventricular (LV) systolic and diastolic function. 115 patients with coronary artery disease candidate for PCI were enrolled to our study. Echocardiography was done before PCI, the day after and 3-6 months later. LV systolic and diastolic function were measured and recorded. Echocardiographic finding compared with repeated measurement analysis. Mean age of the patients was 57.8 ± 8.38 years. The mean ejection fraction (EF) was (%40.52 ± 6.36) before, (%41.83 ± 7.14) the day after, and (%44.0 ± 7.89) 3-6 months after PCI. Diastolic dysfunction were mild to moderate before PCI, which in %74 (86 patients) were improved to mild dysfunction the day after PCI but not changed 3-6 months later (P<0.0001). PCI improved LV ejection fraction, and LV diastolic function in our patient's population.
Related Concept Videos
Cardiac Catheterization III: Left Heart Catheterization
Cardiac Catheterization I: Pre-Procedure Overview
Cardiomyopathy V: Interprofessional Care
Coronary Artery Disease V: Interprofessional Care
Acute Coronary Syndrome III: Diagnostic Studies
Cardiomyopathy III: Hypertrophic Cardiomyopathy

