Contents : 1 Cardiac Anatomy and Physiology 2 Cardiovascular Pathology and Pathophysiology 3 Clinical Examination 4 Diagnostic Aids in Equine Cardiology 5 Congenital Heart Disease 6 Acquired Cardiovascular Disease 7 Cardiac Arrhythmias 8 Problems in Equine Cardiology Appendix: Drugs Used in Equine Cardiology List of Tables : Table 1.1 Factors affecting preload, afterload, contractility and heart rate Table 2.1 Mechanisms in congestive heart failure Table 2.2 Causes of systolic and diastolic failure Table 3.1 Check list for clinical findings in horses with cardiac disease Table 3.2 Clinical signs of cardiac disease Table 3.3 Causes of dependent oedema Table 3.4 Classification of functional and pathology murmurs Table 4.1 Recording of an ECG. The lead system which can be used for recording an ECG Table 4.2 Interpretation of an ECG Table 4.3 Measurements of the normal complex and interval duration Table 4.4 Doppler equations (Doppler shift equation, Bernouilli equation, Nyquist principle, calculation of cardiac output) Table 4.5 Features of an ultrasound machine required for equine cardiology Table 4.6 Transducer positions Table 4.7 Guidelines for measuring cardiac dimensions and a range of values obtained in normal adult Thoroughbred horses Table 4.8 A protocal for 2DE and M-mode echocardiography Table 4.9 Summary: Echocardiographic features of mitral regurgitation Table 4.10 Summary: Echocardiographic features of tricuspid regurgitation Table 5.1 Summary: Echocardiographic features of aortic regurgitation Table 6.1 Summary: Ventricular septal defects Table 6.2 Basic rules of management of horses with cardiac disease Table 6.3 Summary: Clinical evaluation of horses with tricuspid regurgitation Table 6.4 Summary: Clinical evaluation of horses with aortic regurgitation Table 6.5 Summary: Clinical evaluation of horses with endocarditis Table 6.6 Summary: Clinical evaluation of horses with myocardial disease Table 6.7 Summary: Clinical evaluation of horses with pericardial disease Table 7.1 Summary: The clinical approach to horses with arrhythmias Table 7.2 Summary: Recognition of arrhythmias Table 7.3 Summary: Clinical features of atrial fibrillation Table 7.4 Summary: Treatment of atrial fibrillation Table 8.1 Summary: Evaluation of the cardiovascular system at pre-purchase examination Table 8.2 Summary: Interpretation of findings at pre-purchase examinations Table 8.3 Summary: Causes of poor athletic performance Table 8.4 Summary: Evaluation of the poor performance cases suspected of having a cardiovascular disease. Baseline information Table 8.5 Summary: Diagnostic aids in evaluation of the poor performance case Table 8.6 Summary: Important historical information in a collapsing horse Table 8.7 Summary: Examination of the collapsing horse Table 8.8 Summary: Causes of episodic collapse Table 8.9 Summary: Causes of sudden death