Staff Members - Benha University
Incidence and predictors of mismatch after mechanical mitral valve replacement
• 2019
Publication Information
Authors
Ashraf AH El Midany1 , Ezzeldin A Mostafa1 , Tamer Hikal1,
Mostafa G Elbarbary1, Ayman Doghish1, Ramy Khorshid1 ,
Basem M Abdelgawad2 , Mohamed Sharaa3,
Ismail N El-Sokkary3, Mohamed El Hossiny3,
Haytham Abdelmoaty3 and Bahaa A Elkhonezy3
Keywords
Not Available
Journal
Not Available
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
Patient-prosthesis mismatch after mitral valve replacement has an unfavorable postoperative hemodynamic
outcome, which underlines the importance of identifying and preventing prosthesis- and patient-related risk
factors. This study was conducted to determine the incidence and identify possible predictors of patientprosthesis
mismatch.
Methods: A prospective study was conducted on 715 patients with a mean age of 4211 years who underwent
mechanical mitral valve replacement between 2013 and 2017. The effective orifice area of the prostheses was estimated
by the continuity equation, and a mismatch was defined as an effective orifice area index 1.2 cm2m
2. The mean
clinical and echocardiographic follow-up was 26.7411.58 months. Multivariate regression analysis was performed to
identify predictors of patient-prosthesis mismatch.
Results: Patient-prosthesis mismatch was detected in 382 (53.4%) patients. A small mechanical prosthesis (
outcome, which underlines the importance of identifying and preventing prosthesis- and patient-related risk
factors. This study was conducted to determine the incidence and identify possible predictors of patientprosthesis
mismatch.
Methods: A prospective study was conducted on 715 patients with a mean age of 4211 years who underwent
mechanical mitral valve replacement between 2013 and 2017. The effective orifice area of the prostheses was estimated
by the continuity equation, and a mismatch was defined as an effective orifice area index 1.2 cm2m
2. The mean
clinical and echocardiographic follow-up was 26.7411.58 months. Multivariate regression analysis was performed to
identify predictors of patient-prosthesis mismatch.
Results: Patient-prosthesis mismatch was detected in 382 (53.4%) patients. A small mechanical prosthesis (