Doppler Echocardiographic Assessment of Haemodynamic Indices after Aortic Valve Replacement

Dr. Bijumon PR; Dr. Stanley George

Volume : VI, Issue : XII, December - 2017

Doppler Echocardiographic Assessment of Haemodynamic Indices after Aortic Valve Replacement

Dr. Bijumon Pr, Dr. Stanley George

Abstract :

Objective: The present study was postulated to assess the haemodynamic parameters after aortic valve replacement(AVR) using Doppler echocardiography.

Methods: This was a prospective, single–centred, observational study which included a total of 50 patients who underwent AVR. Post–operative Doppler echocardiography was done prior to discharge for assessment of various haemodynamic parameters for critical estimation prosthetic valve function. The univariant analysis was performed for indexed EOA with DVI, AT and AT/ET to establish correlation among them.

Results: The current study included patients of varied age from 20–80 years. Indexed EOA was >0.85 in 48 patients, between 0.65–0.85 in 1 patient and <0.65 in 1 patient. A total of 36% patients were found to have higher trans–valvular gradient in the immediate post AVR period. But on assessment after 6 month of AVR, trans–valvular gradient was normalized in 88% patients. Only 2 out of 50 patients remained high with echo–doppler parameters, suggested presence of prosthesis patient mismatch(PPM). A strong positive correlation was observed between indexed EOA and DVI with a p–value of 0.0001 and r²–value of 0.8.

Conclusion: The post–operative assessment as well as long–term follow–up should be taken in the patients who underwent AVR to reduce occurrence of early and late complications.