BackgroundMediastinitis is a severe surgical complication of low incidence, but high
lethality. Scores used in the preoperative period to stratify the risk of
postoperative mediastinitis may contribute to improve the results.ObjectiveTo test the applicability of the MagedanzSCORE in predicting the risk factors
for mediastinitis in patients undergoing coronary artery bypass grafting at
a cardiology reference hospital.MethodsHistorical cohort study with adult patients who underwent coronary artery
bypass grafting. The analyzed variables were contemplated in the
MagedanzSCORE: reoperation, chronic obstructive pulmonary disease (COPD),
obesity, class IV unstable angina, polytransfusion therapy, mediastinitis
and death as outcome variables.ResultsOf the 1.322 patients examined, 56 (4.2%) developed mediastinitis. Of these,
26 (46.4%) were classified as high risk for mediastinitis and 15 (26.8%) at
very high risk for mediastinitis. Three of the five variables of the
Magendanz Score showed statistically significant differences: reoperation,
COPD and obesity. Class IV unstable angina and postoperative polytransfusion
were not associated with mediastinitis after coronary artery by-pass
grafting. The area under the ROC curve was 0.80 (CI 95% 0.73 - 0.86),
indicating the model's satisfactory ability to predict the occurrence of
mediastinitis.ConclusionThe tool was useful in the preoperative assessment demonstrating the risk for
mediastinitis in this population of intensive care patients.