martes, 2 de junio de 2015

Sobrevida postoperatoria/Postoperative survival

Sobrevida después morbilidad postoperatoria: Estudio longitudinal, observacional de cohortes
Survival after postoperative morbidity: a longitudinal observational cohort study.
Moonesinghe SR, Harris S, Mythen MG, Rowan KM, Haddad FS, Emberton M, Grocott MP.
Br J Anaesth. 2014 Dec;113(6):977-84. doi: 10.1093/bja/aeu224. Epub 2014 Jul 10.
Abstract
BACKGROUND: Previous studies have suggested that there may be long-term harm associated with postoperative complications. Uncertainty exists however, because of the need for risk adjustment and inconsistent definitions of postoperative morbidity. METHODS: We did a longitudinal observational cohort study of patients undergoing major surgery. Case-mix adjustment was applied and morbiditywas recorded using a validated outcome measure. Cox proportional hazards modelling using time-dependent covariates was used to measure the independent relationship between prolonged postoperative morbidity and longer term survival. RESULTS: Data were analysed for 1362 patients. The median length of stay was 9 days and the median follow-up time was 6.5 yr. Independent of perioperative risk, postoperative neurological morbidity (prevalence 2.9%) was associated with a relative hazard for long-term mortality of 2.00 [P=0.001; 95% confidence interval (CI) 1.32-3.04]. Prolonged postoperative morbidity (prevalence 15.6%) conferred a relative hazard for death in the first 12 months after surgery of 3.51 (P<0.001; 95% CI 2.28-5.42) and for the next 2 yr of 2.44 (P<0.001; 95% CI 1.62-3.65), returning to baseline thereafter. CONCLUSIONS: Prolonged morbidity after surgery is associated with a risk of premature death for a longer duration than perhaps is commonly thought; however, this risk falls with time. We suggest that prolonged postoperative morbidity measured in this way may be a valid indicator of the quality of surgical healthcare. Our findings reinforce the importance of research and quality improvement initiatives aimed at reducing the duration and severity of postoperative complications.
KEYWORDS: complications; complications, morbidity; complications, neurological; surgery, non-cardiac
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Anestesia y Medicina del Dolor
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