Valve Surgery after the Age of 70: Evaluation Risk Factors for Hospital Mortality

Objective: Valve surgery after the age of 70 is increasingly common in Algeria. The aim of this study was to identify risk factors for in-hospital mortality in this population. Methods: 56 patients with a mean age of 72 years (70-81) underwent valve surgery between 2016 and December 2019. 32 patients (57.4%) had aortic valve replacement, 17 patients (29.7%) had mitral surgery and 07 patients (12.9%) had aorto-mitral surgery. 04 procedures (8%) were urgent. The Euroscore was used to predict operative risk. The mean additive Euroscore was 9.05 and the mean logistic Euroscore was 14.2%. Results: Operative mortality was 3.8%. Preoperative risk factors were: NYHA III class, repeat operations, critical status according to the Euroscore,STS score , PAH, mitral surgery and tricuspid surgery. Post-operative complications were: low flow (12%), supra-ventricular arrhythmia (32.7%), renal dysfunction (14.6%), pulmonary (11%), intestinal (3.5%), infection (4%) and surgical re-exploration (6.5%). Post-operative risk factors for mortality were low flow, renal dysfunction, gastrointestinal complications and surgical re-exploration. Conclusion: Valve surgery after the age of 70 is a low-risk procedure. Our data are correlated with the Euroscore.