Pulmonary Embolism Severity Index and Simplified Pulmonary Embolism Severity Index Risk Scores Are Useful to Predict Mortality in Japanese Patients With Pulmonary Embolism

Background: The Pulmonary Embolism Severity Index (PESI) and simplified PESI (sPESI) have not been fully evaluated in Japan, so the present study aimed to evaluate these risk stratification models in the prediction of mortality of affected patients in Japan. Methods and Results: We retrospectively analysed 302 PE patients (63.9 +/- 17.2 years of age; 42.4% male) from January 2011 to December 2012 using data from the Tokyo CCU Network. The areas under the receiver-operating characteristic curves were 0.92 (95% confidence interval (CI): 0.88-0.97) for the PESI and 0.88 (95% CI: 0.77-0.98) for the sPESI. Conclusions: Both scores can be used to predict PE mortality in Japan.