Читать книгу Manual of Equine Anesthesia and Analgesia - Группа авторов - Страница 150

 Sinus bradycardia is considered to be present when the HR is <24 beats/min, but the RR interval is regular.The normal HR is between 24 and 50 beats/min.

 Usually, bradycardia is due to increased vagal stimulation.Generally, disappears with exercise.

 HRs lower than 24 beats/minute may occur in a fit horse, but may also reflect cardiac disease, such as sinus abnormalities and/or infiltrative processes.