Comparison of EuroSCORE II and the society of thoracic surgeons risk score for predicting 30-day mortality among Bangladeshi patients undergoing isolated coronary artery bypass grafting at a single center

M. Zafar Al-Nimari; Nittyananda Pal; Dewan Iftakher Raza Chowdhury; Ahmad Pear Salahuddin; Mohammad Azizul Islam; Satyajit Sharma; Oindril Saha; Anowarul Azim

doi:10.18203/2349-2902.isj20253836

Authors

M. Zafar Al-Nimari Department of Cardiac Surgery, National Heart Foundation Hospital and Research Institute (NHFH and RI), Dhaka, Bangladesh
Nittyananda Pal Department of Cardiac Surgery, Khwaja Yunus Ali Medical College and Hospital, Sirajganj, Bangladesh
Dewan Iftakher Raza Chowdhury Department of Cardiac Surgery, TMSS Medical College and Rafatullah Community Hospital, Bogura, Bangladesh
Ahmad Pear Salahuddin Department of Cardiac Surgery, TMSS Medical College and Rafatullah Community Hospital, Bogura, Bangladesh
Mohammad Azizul Islam Department of Cardiac Surgery, Khwaja Yunus Ali Medical College and Hospital, Sirajganj, Bangladesh
Satyajit Sharma Department of Cardiac Surgery, National Heart Foundation Hospital and Research Institute (NHFH and RI), Dhaka, Bangladesh
Oindril Saha Department of Cardiac Surgery, National Heart Foundation Hospital and Research Institute (NHFH and RI), Dhaka, Bangladesh
Anowarul Azim Department of Cardiac Surgery, National Heart Foundation Hospital and Research Institute (NHFH and RI), Dhaka, Bangladesh

DOI:

https://doi.org/10.18203/2349-2902.isj20253836

Keywords:

EuroSCORE II, STS risk score, Coronary artery bypass grafting, Mortality prediction, Risk stratification, Cardiac surgery

Abstract

Background: There are many risk stratification models have been developed to predict short-term morbidity and mortality after cardiac surgery. This study compared the European system for cardiac operative risk evaluation (EuroSCORE) II and the society of thoracic surgeons (STS) risk score to predict 30-days mortality in patients undergoing isolated coronary artery bypass grafting (CABG).

Methods: This comparative cross-sectional study was carried out in department of cardiac surgery of national heart foundation hospital and research institute, Dhaka, from September 2020 to August 2022. Ethical approval was taken from the institutional review board of NHFH and RI. Following informed written consent, preoperative EuroSCORE II and STS risk score were assessed among total of 500 patients who underwent isolated CABG. Patients were followed up after 30-days to see the outcome. Data were analyzed by SPSS-26. Risk model comparison was done by calculating Z score of area under receiver operator curves, unpaired t test and McNemar’s test. P<0.05 was considered statistically significant.

Results: Mean±SD age of the study was 60.20±7.46 (SD) years. Maximum patients were male (81.8%), overweight (55.6%), hypertensive (63.6%) and diabetic (44.2%). Mean EuroSCORE II and STS risk score of all patients was 2.51±1.98 and 2.42±1.86, respectively. Overall, 30-days mortality was 1.4% (n=7). Both EuroSCORE II and STS risk score had similar capability in predicting 30-days mortality among isolated CABG patients with excellent accuracy (as area under curve was 0.936 and 0.922, respectively).

Conclusions: Both EuroSCORE II and STS risk score are similarly effective to predict 30-days mortality in isolated CABG patients.

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References

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