Long-Term Training Increases Atrial Fibrillation Sustainability in Standardbred Racehorses.

ABSTRACT: Atrial fibrillation (AF) is more prevalent in athletes, and currently, the mechanisms are not fully understood. Atrial fibrillation inducibility and stability was investigated in trained and untrained Standardbred racehorses. The horses underwent echocardiography for evaluation of atrial size. High-density mapping during AF was performed, and the presence of structural remodeling, as well as the expression of inflammatory and pro-inflammatory markers in the atria, was studied. Atrial fibrillation sustained significantly longer after tachypacing in the trained horses, whereas no difference in AF inducibility was found. The untrained horses displayed a significant difference in the AF complexity when comparing right and left atria, whereas such difference was not observed in the trained anim

SUBMITTER: Carstensen H 

PROVIDER: S-EPMC10615936 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature