Reemplazo valvular aórtico con prótesis biológica en pacientes mayores de 70 años con estenosis aórtica
| Autor: | Oslando Padilla P, Cecilia Muñoz C, Gabriel Olivares R, Pedro Becker R, Rodrigo González F, Ricardo Mejía M, Ricardo Zalaquett S, Manuel J Irarrázaval Ll, Felipe Quezada D, Sergio Morán V |
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| Rok vydání: | 2011 |
| Předmět: |
Bioprosthesis
medicine.medical_specialty Ejection fraction business.industry medicine.medical_treatment General Medicine Perioperative Aortic valve stenosis medicine.disease Surgery Stenosis medicine.anatomical_structure Aortic valve replacement Valve replacement medicine business Survival rate Aged Artery |
| Zdroj: | Revista médica de Chile v.139 n.2 2011 SciELO Chile CONICYT Chile instacron:CONICYT |
| ISSN: | 0034-9887 |
| DOI: | 10.4067/s0034-98872011000200002 |
| Popis: | Background: Aortic valve stenosis is the most prevalent valvulopathy in the elderly, but it is frequently undertreated. Aim: To assess early and long term results of valve replacement with bioprostheses in patients 70 years old or older with aortic stenosis. Patients and Methods: A review of the database of the Cardiovascular Surgery Service of our hospital, for the period 1990-2007, identified 156 patients with aortic valve stenosis, aged 76.7 ± 4.5 years (67% males), that were subjected to an aortic valve replacement with bioprosthesis. Seventy eight (50%) were in functional class III-IV. Six patients had emergency surgery. In 67 patients (43%) coronary artery bypass graft were performed. Long term mortality was ascertained obtaining death records from Chilean death registry. Results: Operative mortality was 3.2% (5 patients). Four patients (2.6%) required a reoperation due to bleeding. The mean follow up was 66 ± 41 months. The survival rate at 1, 3 and 5years was 94%, 88% and 80%, respectively. Forty two patients (27%) were 80years old or older. In this sub-group, 1 patient (2.3%) died during the peri operative period and the estimated survival rate at 1, 3 and 5years was 97%, 92%, and 80%, respectively. Multivariate risk analysis, for the whole group, identified low ejection fraction and concomitant coronary artery bypass graft surgery as predictors of late mortality. Conclusions: Aortic valve replacement for aortic stenosis with bioprostheses in patients 70 years old or older had low perioperative mortality and morbidity and a good long term survival. |
| Databáze: | OpenAIRE |
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