Background: Right Ventricular (RV) dysfunction considered as a predictor of mortality in patients with ischemic heart
disease (IHD). Aim: This study was aimed to evaluate the impact of elective coronary artery revascularization on RV
myocardial function in Egyptian patients with IHD using Colour Tissue Doppler Imaging (CTDI). Methods: The present
study is prospective observational self-control study. Fifty consecutive patients with IHD were included in this study.
All participants were subjected to physical examination, Electrocardiograph (ECG), Laboratory test, Transthoracic Echocardiography
and color tissue Doppler Imaging. The RV myocardial performance index (MPI) and S’/RMPI index were
calculated in TDI modalities parameters. Results: No significant differences were detected between the demographic
characteristics of the investigated patients. Tricuspid annular plane systolic excursion (TAPSE) by echocardiographic RV
function parameters was improved significantly after PCI (P=0.001). Most of RV myocardial function showed significant
improvement after PCI by using PW-DTI: Early and late diastolic function: The E` and A` diastolic wave velocities were
improved significantly after PCI (P= 0.003, P= 0.008 respectively), RMPI (P= 0.008) SË‹/RIMP ratio (P=0.04). The myocardial
functions showed significant improvement after PCI by using color-coded tissue Doppler; E` wave (P= 0.02), RMPI was
improved significantly after PCI (P= 0.01). Conclusion: The TAPSE and Doppler tissue indices added important information
to the RV functions after successful percutaneous revisualization of coronary arteries. The measurements performed by
color-coded TDI derived myocardial velocities at basal, mid and apical might have added additional data describing RV
function and its recovery after RV ischemia.
Coronary Artery Disease, Percutaneous Coronary Intervention, Echocardiography, Tissue Doppler imaging,
Right Ventricular Function.