The Effectiveness of Heart Valve Replacement Surgery in a Non-Referral Regional Hospital: The Analysis of Outcomes after Isolated and Complex Valve Replacement.

Background: To comprehensively investigate early and late outcomes for all valve replacement surgery patients in a non-referral regional hospital database and to compare these results with the literature.

Methods: This was a retrospective study and made up of patients undergoing heart valve replacement in the cardiovascular department of a non-referral regional hospital between May 2008 and February 2018. Inclusion criteria were aortic, mitral and double valve replacement with or without CABG.

Results: 212 patients were included in the study. Of the 212 patients, 65 were aortic valve replacement, 119 were mitral valve replacement, 28 were double valve replacement patients. Mean follow-up of all patients was 3.4 ± 2.9 years. There was no significant difference among the groups regarding hospital mortality. The occurrence of acute renal failure and neurological event was the main factors of morbidity-associated mortality. Concomitant CABG procedure was found to be an independent predictor of early mortality after MVR. In the AVR group, there was no significant difference between AVR with CABG and without CABG regarding the 5-year survival rates; whereas in MVR and DVR group, there was a statistically significant difference between the groups. According to Cox proportional hazards model for determining factors related to late mortality, preoperative chronic renal failure and concomitant CABG were factors independently related to late mortality after MVR.

Conclusion: We believe that our study will contribute to the development of the outcomes of heart valve replacement surgery in these centers by supporting other non-heart center clinics in working toward acceptable morality rates for complex valve surgeries.