Serial measurement of high-sensitivity cardiac troponin I and N-terminal proB-type natriuretic peptide in a patient presenting with cardiac sarcoidosis.

A 65-year-old woman presenting with cardiac sarcoidosis underwent serial measurement of her serum high-sensitivity cardiac troponin I (Hs-cTnI) and N-terminal proB-type natriuretic peptide (NT-proBNP) concentrations. She was treated with 1,000 mg/day methylprednisolone for 2 days, which was subsequently replaced by 30 mg/day prednisolone, and decreased to 20 mg/day at the time of discharge, 2 months later. Her echocardiogram showed improvements in the left ventricular systolic and diastolic function, along with a decrease in the concentration of Hs-cTnI and NT-proBNP. This is the first report suggesting that Hs-cTnI might be a reliable means of assessing the effects of treatment of cardiac sarcoidosis.