Topic:Myocardial Lesions
Myocardial lesions in horses refer to areas of damaged or diseased heart muscle tissue. These lesions can result from various causes, including infectious agents, toxins, nutritional deficiencies, or metabolic disorders. Myocardial lesions may affect the heart's ability to function efficiently, potentially leading to clinical signs such as arrhythmias, exercise intolerance, or heart failure. Diagnostic approaches for identifying myocardial lesions in horses include imaging techniques, electrocardiography, and blood tests for cardiac biomarkers. This page compiles peer-reviewed research studies and scholarly articles that explore the etiology, diagnosis, and implications of myocardial lesions in equine cardiac health.
Ventricular arrhythmias in horses: 21 cases (1984-1989). Ventricular premature depolarizations (VPD) were identified in 21 horses in which unexplained tachycardia or an arrhythmia was detected on auscultation. Horses were categorized into 3 groups on the basis of ECG findings. Seven horses had uniform isolated VPD (group 1); 7 horses had repetitive uniform VPD at a rate or = 100 VPD/min (group 3). Concurrent systemic disease was identified in 12 horses, 7 of which had gastrointestinal tract disorders. Serum cardiac isoenzyme activities were high in 6 (2 from each group) of 13 horses in which they were measured. Serum electrolyte concentrations were...
Cardiopathology of sudden cardiac death in the race horse. Twenty thoroughbred race horses were selected for postmortem cardiopathological study of sudden cardiac death; ten of the twenty horses died suddenly. In order to define accurately the morphological changes observed in these ten hearts, ten other thoroughbred race horses considered to have normal hearts were selected as a control group and studied by postmortem coronary angiography. Of the ten horses that died suddenly, eight were witnessed to have died either during or shortly after training or racing. The death was instantaneous except in one horse, which showed ventricular tachycardia and d...