High-sensitive cardiac troponin T and NT-proBNP are associated with the left ventricular apical thickness in apical hypertrophic cardiomyopathy

Apical hypertrophic cardiomyopathy (AHCM) is a subtype of hypertrophic cardiomyopathy (HCM). The expression level of high-sensitive cardiac troponin T (hs-cTNT) and N-terminal pro-BNP (NT-proBNP) in AHCM patients, and these relationships between echocardiography parameters were still unclear. We retrospectively screened AHCM patients between January 2019 and December 2021 in Zhongshan Hospital Fudan University. The relationship between the level of hs-cTNT, NT-proBNP and echocardiography parameters were analyzed. The risk factors for elevated hs-cTNT and NT-proBNP level were investigated with linear regression analysis. A total of 267 AHCM patients were enrolled. They were divided into hs-cTNT normal (129, 48.3%) and abnormal (138, 51.7%) group. Compared with hs-cTNT normal group, hs-cTNT abnormal group were elder (68.3 ± 11.6 vs. 63.8 ± 10.6, P = 0.001); with higher rate of atrial fibrillation (AF) (41.3% vs. 17.8%, P