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CorSalud
versión On-line ISSN 2078-7170
Resumen
FERNANDEZ MESA, José E. et al. Five-year survival of patients with left-side heart valve disease who underwent heart valve surgery. CorSalud [online]. 2020, vol.12, n.1, pp. 38-45. Epub 01-Mar-2020. ISSN 2078-7170.
Introduction:
The mid and long term survival rate is a necessary parameter to evaluate the outcomes of heart valve surgery.
Objectives:
To determine the five-year survival of patients who underwent aortic and/or mitral valve surgery, and the variables that could independently predict a lower survival in the follow-up.
Method:
A cohort study was conducted for evaluating 139 patients who underwent a heart valve surgery, in the period 2010-2012, at the Instituto de Cardiología y Cirugía Cardiovascular of Havana, Cuba, all of which survived the postoperative period, and were followed up to five years after the surgery. A Kaplan-Meier curve was performed to determine the survival after surgery. Also, a multivariate Cox regression was carried out to determine the variables that were independently associated with a lower survival rate. The statistical significance level used was p<0.05.
Results:
The sample was homogeneous according to clinical and demographic variables. The overall survival rate was 93% at the end of the study, with a mean follow up of 5.8 years. The older age (HR=1.15; p=0.001) and the history of perioperative low cardiac output syndrome (HR= 3.54; p=0.037) were the variables independently associated to lower survival in the follow-up.
Conclusions:
The patients’ survival when concluded the follow-up was high. The older age and the perioperative low cardiac output syndrome were the variables independently associated to lower survival.
Palabras clave : Left-side heart valve disease; Heart valve surgery; Survival; Survival Analysis.