Evaluation of surgical outcomes in mechanical aortic valve replacement at Hue Central Hospital

Abstract

Background: Mechanical aortic valve replacement (AVR) is the preferred treatment for young patients with severe aortic valve disease. Objective: To assess the outcomes of mechanical AVR. Methods: This study included 41 patients who underwent mechanical AVR at the Department of Cardiovascular and Thoracic Surgery, Hue Central Hospital, from January 2021 to January 2023. Results: The average age was 49.17 ± 10.78 years, with a male-to-female ratio of 4:3. Pre-surgery, 51.23% were in NYHA class I-II, and 48.77% in NYHA III-IV. Key measurements included a left ventricular ejection fraction (LVEF) of 56.17 ± 9.23%, a left ventricular end-diastolic diameter (LVEDD) of 52.66 ± 8.35 mm, and a left ventricular end-systolic diameter (LVESD) of 36.88 ± 8.02 mm. At 6 months, 87.81% were in NYHA I-II, and 12.19% in NYHA III-IV; LVEF was 61.68 ± 2.55%, LVEDD was 44.15 ± 4.08 mm, and LVESD was 29.0 ± 3.77 mm. Complications of acute kidney failure 7.31%, cardiac arrhythmia 4.88%. There were no deaths after surgery. Conclusion: Mechanical AVR surgery is a safe and effective treatment option. Key words: mechanical aortic valve replacement, aortic valve replacement, aortic valve.