Study of association and prognostic correlation of cardiac troponin I estimation in acute decompensated heart failure patients

Background: Heart failure is a major public health problem since last few decades affecting significant number of people worldwide. Acute decompensated heart failure is a major cause of hospitalization in elderly people with a high mortality rate. Heterogeneity and non-specificity of symptoms makes diagnosis of heart failure by clinical presentation alone more challenging. Aim of current study was to investigate troponin biomarkers in diagnosis, prognosis and management of acute decompensated heart failure. Methods: Present study was a prospective observational study conducted on 100 patients at Department of Cardiology, Superspeciality hospital, NSCB medical college Jabalpur and Department of cardiology Superspeciality hospital, SS medical college Rewa from October 2019 to August 2020. Patients were investigated for clinical, echocardiographic parameters and NYHA classification. Cardiac functions were analyzed by color doppler echocardiography.  Results: According to study findings, 65.2% of TnI positive patients were males whereas 34.8% were females. Mean age of TnI positive group was observed to be higher. Majority of troponin positive patients were in NYHA class IV. Recurrent hospitalization was observed more in TnI positive group. Logistic regression analysis depicted systolic blood pressure reduced significantly (p<0.001) on follow up study in TnI positive patients, FBS was significantly more in TnI positive patients (131.4+42.9 mg/dl) (p=0.049). LVID was significantly more in TnI positive patients (p=0.022). Reduction in EF was statistically significant (p=0.03) at the three months follow up study. Conclusions: A positive prognostic correlation was established between ADHF and troponin positivity, large prospective randomized trials are necessary to recommend quantitative troponin I determination in all patients of acute decompensated heart failure for prognosis and guiding therapy.