title: Behaviour of the heart rate of horses with auricular fibrillation during exercise and after treatment.
abstract: Cardioversion through varying quinidine sulphate treatments was achieved in 3 riding horses with auricular fibrillation. The horses were subjected to continual telemetric ECG registration before and after reversion in a uniform exercise-tolerance-test. A comparison of the heart rate curves showed a strong decline of the heart beat frequency during the exercise phase after synchronisation. The decrease in heart rate during exercise was greater than 30% in all 3 patients. Anti-arrhythmic treatment is, therefore, recommended for horses with auricular fibrillation and without concurrent heart disease.
mesh_terms: D000818:Animals; D001281:Atrial Fibrillation / Q000188:drug therapy / Q000503:physiopathology / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000188:drug therapy / Q000503:physiopathology*; D006736:Horses; D008297:Male; D005082:Physical Exertion; D011802:Quinidine / Q000627:therapeutic use
chemical_list: D011802:Quinidine