Key result
Mitral valve replacement using a tilting disc mechanical valve with total preservation of the mitral apparatus significantly reduced the mean mitral gradient from 13.95 to 3.32 mmHg and preserved left ventricular function.
Why the study?
The study aimed to evaluate early outcomes and left ventricular function following mitral valve replacement with a tilting disc valve and total preservation of the mitral valvular apparatus.
Does mitral valve replacement using a tilting disc mechanical valve with total preservation of mitral valvular apparatus improve early patient outcome and preserve left ventricular function?
Observational (n=22)
No
Does mitral valve replacement using a tilting disc mechanical valve with total preservation of mitral valvular apparatus improve early patient outcome and preserve left ventricular function?
Total preservation of the mitral valvular apparatus during mitral valve replacement with a tilting disc mechanical valve is safe, provides good hemodynamics, and preserves left ventricular function.
Answers are grounded in this paper and cite their sources.
Supports apparatus preservation in mechanical MVR for symptom and hemodynamic gains; hypothesis-generating for LV preservation, needing RCTs.
Introduction The study aimed to retrospectively evaluate the early patient outcome and left ventricular function after mitral valve replacement with a tilting disc valve and total preservation. Patients and methods This retrospective observational study includes patients who underwent mitral valve replacement using a tilting disc valve with total preservation of mitral valvular and subvalvular apparatus from July 2021 to August 2022 at a single center. Results The data were reviewed retrospectively for age, sex, comorbidities, operating time, aortic cross-clamp time, cardiopulmonary bypass time, preoperative and postoperative left ventricular ejection fraction, mean gradient across the mitral valve, left ventricular diameter, left atrial size, atrial fibrillation, complications, mortality, and early patient outcome. Echocardiographic and clinical data were compared for the preoperative and postoperative periods. A significant difference in the preoperative and postoperative left atrial size, pulmonary arterial pressure, New York Heart Association class, and mean gradient across the mitral valve was found. However, the difference between the preoperative and postoperative ejection fraction and left ventricular diameter in systole and diastole was not significant. Conclusion Early patient outcome after mitral valve replacement with a tilting disc valve and total preservation of mitral valvular apparatus gives good results with minimal morbidity and mortality. Favorable patient outcomes in this study lay to rest any skepticism regarding total preservation while using a tilting disc valve. The technique of total preservation is safe while using a tilting disc valve, and it helps in the preservation of the left ventricular ejection fraction and gives a low gradient across the valve.
No takes yet. Share an insight, caveat, or question.
Goyal et al. (2024) conducted an observational in Mitral valve disease (n=22). Mitral valve replacement with tilting disc valve and total preservation vs. Preoperative baseline was evaluated on Mean gradient across the mitral valve (p=<0.001). Mitral valve replacement using a tilting disc mechanical valve with total preservation of the mitral apparatus significantly reduced the mean mitral gradient from 13.95 to 3.32 mmHg and preserved left ventricular function.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: