PATTERN OF CORONARY ARTERY DISEASE IN ASYMPTOMATIC SERVING SOLDIERS HAVING ABNORMAL SCREENING ETT
Keywords:Coronary artery disease (CAD), Computerized tomography (CT), Exercise tolerance test (ETT)
Objectives: To validate the application of ETT screening and to assess the extent of CAD in serving soldiers. Study Design: Comparative cross-sectional.
Place and Duration of Study: Study was conducted in AFIC/NIHD, from Oct 2018 to Jun 2019.
Methodology: Conducted in AFIC/NIHD for the duration of 9 months. Cases with abnormal ETT at screening were further worked up with Computed Tomographic (MSCT) Angiography. Those having critical disease underwent Coronary angiogram. All cases with severe or more disease, were worked for revascularization. Chi-square test was used to find association between ETT and its diagnostic yield and management modalities. A p-value <0.05 was taken as significant.
Results: A total of 256 cases with abnormal ETT were studied with 57.8% (148) cases from age group of 35-45 years. Majority of the cases 203 (76.6%) had normal CT angiography and 26 (10.2%) cases had any pattern of critical disease and 9 (3.5%) cases had calcium. Out of 256 cases 36 (14.06%) were proceeded with further work up with coronary angiogram. 31 out of these 36 cases revealed any pattern of critical CAD with 19 (7.4%) proceeded to Percutaneous Coronary Intervention (PCI) and 14 (5.5%) were offered Coronary Artery Bypass Grafting (CABG). Results show statistically significant association between diagnostic techniques and treatment modality.
Conclusion: The application of ETT screening for diagnosis of occult CAD is helpful.