ASOCIACIÓN ENTRE TIEMPO DE CIRCULACIÓN EXTRACORPÓREA Y PINZAMIENTO AÓRTICO EN LA MORTALIDAD POSTOPERATORIA DE CIRUGÍA CARDÍACA EN LA UNIDAD DE CUIDADOS INTENSIVOS DEL HOSPITAL ALCÍVAR EN EL PERIODO ENERO 2017-JUNIO DEL 2018

Abstract

Cardiac surgeries such as valvular replacements, coronary revascularization or mixed procedures usually require extracorporeal circulation (ECC). It is believed that prolonged CPB time and aortic clamping time are independently associated with an increase in postoperative mortality. Objective: To determine the association between the time of extracorporeal circulation and aortic clamping with the post-operative mortality of cardiac surgery in the intensive care unit of the Alcívar Hospital from January 2017 to June 2018. Methodology: Observational, quantitative research, retrospective, analytical and transversal. The sample was of a non-probabilistic type for convenience that evaluated 90 patients undergoing cardiac surgery with extracorporeal circulation, divided into 4 groups: with CPB time> 120 minutes, CPB <120 minutes, PA> 60 minutes, and BP <60 minutes. Excel 2010 and SPSS 21 were used for the statistical processing of the data. Results: 57.8% (52) were patients> 60 years. The average age was 59.43 years. The male sex predominated with 72.2% (65). Coronary surgery was the most performed with 47% (42). The mortality rate was 24.4% (22). The surgical risk using Euroscore II in 68.9% was low. The most frequent risk factors were hypertension (56.7%), diabetes mellitus (18.9%) and cigarette consumption (13.3%). Conclusions: The HTA triples the risk of mortality in relation to the group that is not hypertensive (HR: 3,877 IC95%: 0,331-9,326). The extracorporeal circulation time> 120 minutes is a risk factor 3 times higher for mortality (HR: 3.587 IC95%: 1,234- 10,430). The time of aortic clamping> 60 minutes is a risk factor 4 times higher for mortality (HR: 4.307 IC95: 1.425-13.017).