A Validation Study for POSSUM and EuroSCORE as a Predictor of Mortality After Selective Cardiac Surgery
ABSTRACT: to assess
physiological and operative severity score for the enumeration of mortality
(POSSUM) scoring system and compare it with European system for cardiac
operative risk evaluation (EuroSCORE) scores in patients who underwent cardiac
surgery from two hospitals in the southwestern region of Iran. Methods: in this
retrospective study, total of all 1420 patients who were admitted for elective
cardiac surgery at our centers, from 2007 to 2012, were scored using the POSSUM
and EuroSCORE systems. Results: the overall mortality rate was 0.87%. Among the
risk factors, history of diabetes, smoking, respiratory disease, and myocardial
infarction, were signifcantly affect the mortality rate. Therefore, of these
risk factors, only the hemoglobin was signifcantly correlated with the
morbidity rate. The predictive accuracy of mortality equations was 74.5%. The
lower predictive accuracy of mortality equations was 67.8% was observed using
EuroSCORE. Conclusion: although results are statistically signifcant, but the
analysis have never intended to affect the decision to operate, and this
decision must be based on clinical expertise, because of the need to
standardize data collection and stratify the risks involved in operations,
scoring systems such as POSSUM should be used prospectively. However, if
analyzed correctly, POSSUM is a good predictor of mortality in patients
undergoing cardiac surgery.
Key words: cardiac surgery,
physiological and operative severity score for the enumeration of mortality (POSSUM),
European system for cardiac operative risk evaluation (EuroSCORE)
Author: Saeid Saeidimehr,
Ahmad Ebadi, Farhad Kalantari, Mehdi D. Firoozabadi, Fakher Rahim
Journal Code: jpkedokterangg150257
