Hospital risk factors for bovine pericardial bioprosthesis valve implantation

Risk factors associated with hospital mortality in mitral valve reoperation

OBJECTIVE

to identify the factors associated with mortality in mitral valve reoperation, to create a predictive model of mortality and to evaluate the EuroSCORE.

METHODS

a total of 65 patients were evaluated from January 2008 to December 2017. It was verified the association of variables with death and a multiple logistic regression model was used to stratify patients.

RESULTS

hospital mortality was 13.8% and in the Death Group: EuroSCORE was 12.33±8.87 (p=0.017), the left ventricular ejection fraction (LVEF) was 45.33±5.10 (p=0.000), the creatinine was 1.56±0.29 (p=0.002), the prothrombin time (TAP) was 1.64 (p=0.001), pulmonary artery systolic pressure (PSAP): 66.1±13.6 (p=0.002), female: 88% (p=0.000), malnutrition: 77.7% (p=0.007), associated tricuspid disease: 44,4% (p=0.048), presence of ventricular arrhythmia: 77.7% (p=0.005), implantation of a biological prosthesis: 55.5% (p=0.034), bronchopneumonia and sepsis: 33,3% (p=0.048), systemic inflammatory response syndrome (SIRS): 55.5% (p=0.001), low cardiac output syndrome (LCOS): 88.8% (p=0.000).

CONCLUSION

the factors associated with mortality were: EuroSCORE, LVEF, creatinine, TAP, PSAP, female, malnutrition, tricuspid disease, ventricular arrhythmia, implantation of biological prosthesis, SIRS, SBDC, bronchopneumonia and sepsis. The explanatory variables of death of the model were: EuroSCORE, creatinine, TAP, LVEF, length of stay in the intensive care unit (ICU), interval between surgeries and presence of ventricular arrhythmia. The high EuroSCORE is related to higher mortality.