Assessment of clinical, paraclinical characteristics of patients receiving concomitant mitral and aortic valve replacement with On-X mechanical prosthesis at Bach Mai Hospital

Abstract

Objectives: To investigate clinical and paraclinical characteristics of patients undergoing concomitant mitral and aortic valve replacement with On-X mechanical valve at Bach Mai Hospital. Subjects and methods: This was a non-controlled, prospective, descriptive study on 100 patients with severe aortic and mitral diseases undergoing concomitant aortic and mitral valve replacement with On-X valve. Clinical and paraclinical parameters were selected based on Vietnam National Heart Association and ACC/AHA guidelines. Results: Clinical manifestations included history of rheumatic heart disease (70.0%), NYHA class II (36.0%), NYHA class III (64.0%), atrial fibrillation (67.0%). Echocardiography showed dilated left ventricle (LVEDd 55.2 ± 8.9 mm, LVEDs 37.3 ± 8.1 mm), preserved left ventricular ejection fraction (63.9 ± 9.5%), moderately pulmonary arterial hypertension (47.2 ± 13.8 mmHg), and dilated left atrium (53.8 ± 10.5 mm). Conclusion: Most patients undergoing concomitant On-X aortic and mitral prosthetic valve replacement presented with moderate and severe heart failure, dilated left ventricle and left atrium, and increased pulmonary arterial pressure.
 * Keywords: Mitral and aortic valve replacement; On-X valve.