The Role OF 3D echocardiography in prediction of pulmonary vascular resistance and its reversibility in simple congenital heart disease with secondary pulmonary hypertension.

Background: Pulmonary hypertension is a progressive and often fatal disease that frequently presents with the non-specific symptom of dyspnea on exertion.

Aim: To determine non-Invasive Predictors of Pulmonary vascular resistance severity and reversibility in simple Congenital Heart Disease Patients Using 3D Echocardiography.

Patients And Methods: This was a Prospective cohort study conducted on 40 patients selected from attendees of Cardiology clinics of Ain Shams University Hospitals over a period of 2 years.

Results: There was a statistically significant positive correlation between PVR and its reversibility and right ventricular parameters (EDV/ESV/SVI), tricuspid valvular parameters (Coaptation height/Tenting volume/Annulus perimeter/Major axis/Minor axis) measured by 3D echocardiography (P < 0.05). On the other hand, no statistically significant correlation was found between PVR or its reversibility and ejection fraction, and annulus area (P < 0.05). All echocardiographic parameters are either excellent or good predictors for reversibility of PVR except for EF, FAC, and S'.

Conclusion: We conclude that EDV, ESV, SVI, CoH, tenting volume, and annulus perimeter were the most important variables to predict the PVR and found that all echocardiographic parameters were either excellent or good predictors for reversibility of PVR except for EF, FAC, and S'.