Evaluation of Early Alterations in Transmitral Diastolic Flow and Tissue Doppler Findings of the Septal and Lattral Segments of Left Ventricles in Early Period after Coronary Angioplasty

Document Type : Original Article(s)

Authors

1 Associate Professor, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.

2 Resident, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.

3 Assistant Professor, Department of Internal Medicine and Cardiology, School of Medicine, Kordestan University of Medical Sciences, Sanandaj, Iran.

Abstract

Background: We aimed to evaluate subepicardial and subendocardial left ventricular (LV) functions in patients with single coronary artery lesion at early stage after percutaneous coronary intervention (PCI). Methods: Patients with left anterior descending (LAD) lesion (n = 40) were evaluated. Patients un-derwent PCI and at least one coronary stent was placed. After PCI, the pulsed-wave tissue doppler im-aging (pw-TDI) parameters taken from subepicardial and subepicardial layers were compared among the them. Finding: The systolic and diastolic pw-TDI parameters were apparently different between the patient after PCI, while the systolic pw-TDI parameters did not change. The diastolic pw-TDI parameters taken from both subepicardial (circumferential contraction) and subendocardial layers (longitudinal contraction) improved after PCI. After PCI, it was shown that while Ea velocity (P = 0.012) taken from the subendocardial layer increased, IVRa velocity (P < 0.001) taken from the subepicardial layer decreased. Conclusion: In our study, left ventricular, left atrium, and aortic valve diameter increase in patients with coronary artery disease. The systolic and diastolic functions were impaired at subendocardial and subepicardial layers. These dysfunctions can be easily presented with pw-TDI. Although systolic dys-function persists, diastolic dysfunction improves at early stage after PCI. Key words: Angioplasty, Percutaneous Coronary, Echocardiography, Doppler, Tissue doppler imag-ing.

Keywords

References

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Journal of Isfahan Medical School
Volume 28, Issue 116 - Serial Number 116
September and October 2011
Pages 1016-1023

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History

  • Receive Date: 29 January 2011
  • Revise Date: 01 November 2024
  • Accept Date: 06 April 2022

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