Tehran University of Medical Sciences Archives of Anesthesiology and Critical Care 2423-5849 11 Supp. 1 2025 04 11 707 711 Muhammad Zulfikar Department of Anesthesiology and Intensive Care, Faculty of Medicine, Hasanuddin University – Dr. Wahidin Sudirohusodo Hospital, Makassar, Indonesia. Nur Surya Wirawan Department of Anesthesiology and Intensive Care, Faculty of Medicine, Hasanuddin University – Dr. Wahidin Sudirohusodo Hospital, Makassar, Indonesia. Syafri Arif Department of Anesthesiology and Intensive Care, Faculty of Medicine, Hasanuddin University – Dr. Wahidin Sudirohusodo Hospital, Makassar, Indonesia. Syafruddin Gaus Department of Anesthesiology and Intensive Care, Faculty of Medicine, Hasanuddin University – Dr. Wahidin Sudirohusodo Hospital, Makassar, Indonesia. Haizah Nurdin Department of Anesthesiology and Intensive Care, Faculty of Medicine, Hasanuddin University – Dr. Wahidin Sudirohusodo Hospital, Makassar, Indonesia. Andi Adil Department of Anesthesiology and Intensive Care, Faculty of Medicine, Hasanuddin University – Dr. Wahidin Sudirohusodo Hospital, Makassar, Indonesia. 2025 03 13 2025 03 18 Background: Non-cardiac surgery in patients with cardiovascular risk can lead to postoperative complications. Troponin T, a cardiac biomarker, is proposed as an indicator of cardiac risk in these patients. This study evaluates troponin T levels before and after non-cardiac surgery and their association with postoperative complications. Methods: This prospective cohort study included 46 patients selected through consecutive sampling. Demographic data and troponin T levels were recorded before and 24 hours after surgery. Results: Postoperative complications included cardiac events (15.21%), such as myocardial infarction (4.34%), heart failure (4.34%), and arrhythmia (6.52%), and non-cardiac events (17.39%), such as sepsis (4.34%), bleeding (4.34%), surgical site infection (6.52%), and respiratory insufficiency (2.17%). The average patient age was 50.15 ± 8.81 years, with 60.9% being male. There was a significant relationship between troponin T levels and the incidence of cardiac complications after surgery. Conclusion: Elevated postoperative troponin T levels may serve as a prognostic indicator for cardiac complications in non-cardiac surgery patients. Routine monitoring could aid in early detection and improved postoperative management. https://aacc.tums.ac.ir/index.php/aacc/article/view/1237