Our Cardiology Service cares for patients with heart conditions including those that were present at birth (congenital), those that develop with age, or those that cause disturbances in the regular beating of the heart (rhythm disturbances, dysrhythmias). The majority of these conditions can be diagnosed by performing an ultrasound of the heart (echocardiography), electrocardiography (ECG) and radiographic evaluation of the cardio-respiratory system (chest x-rays). Treatment of heart conditions is provided either by medication or by performing interventional procedures called catheter interventions.

At The Ralph, our Cardiology Service provides investigation and management for all types of congenital and acquired canine and feline heart diseases. These include but are not limited to:

  • Diagnosis and management of acute and chronic congestive heart failure
  • Congenital disorders (including patent ductus arteriosus, aortic and pulmonic stenosis, dysplasia of the mitral and tricuspid valves, ventricular septal defects and other anomalies)
  • Chronic degenerative valvular disease in dogs (i.e. myxomatous mitral valve disease)
  • Canine and feline myocardial (heart muscle) disorders (i.e. cardiomyopathies and myocarditis)
  • Pericardial diseases (i.e. pericardial effusions and cardiac neoplasia)
  • Feline arterial thromboembolism
  • Cardiac dysrhythmias
  • Recurrent falling and fainting

These are facilitated by an extensive range of specialist equipment – including colour and spectral Doppler Echocardiography, thoracic radiography, 3- and 6-lead digital ECG recording, 24/48 hour ambulatory ECG (Holter) monitoring, Implantable Loop Recorders, High Definition Oscillometry Blood Pressure Monitoring, Interventional Cardiology, Tele-cardiology.

Our Cardiologist Heidi Ferasin works alongside the Internal Medicine, Diagnostic Imaging, Emergency and Critical Care (ECC) and General Surgery teams in cases requiring a multi-disciplinary approach. The ECC and Internal Medicine teams are fully trained to manage life-threatening cardiac emergencies which arise outside of Cardiology clinic hours.

Our Cardiology Service is very happy to provide advice on all aspects of cardio-respiratory medicine, either over the telephone or via email. Please send emails to