To determine the frequency of triple vessel coronary artery disease in patients admitted with acute coronary syndrome.

Objective: To determine the frequency of triple vessel coronary artery disease in patients less than 40 years of age undergone diagnostic coronary angiography and were admitted with acute coronary syndrome Study Design: Cross Sectional study. Setting: Department of Cardiology, Punjab Institute of Cardiology, Lahore. Period: 3rd Sep 2018 to 2nd March 2019. Methods: It was consisted of 90 patients Results: Total 90 cases were enrolled in the study. All presented with central or left sided chest pain clinically diagnosed to be having acute coronary syndrome. All patients undergo diagnostic coronary angiography for the first time. 36.7 % of the presenting cases included in the present study were females while 63.3 % were males who had acute coronary syndrome. Average age of patients included in present study was 30.1±5.9 Data was stratified according to age, gender, type of ACS present. Post stratification chi-square test was applied. It showed that 23.29 % patients had triple vessel coronary artery disease whereas 76.71% did not have triple vessel coronary artery disease. Conclusion: TVCAD was observed in 23.29% of patients presented with acute coronary syndrome in patients less than 40 years of age.