Dilated cardiomyopathy (DCM) is a syndrome characterized by impaired myocardial function (systolic +/- diastolic),
ventricular dilation and frequently, tachyarrhythmias. In the dog, specific breed predispositions exist and the Doberman pinscher, Great Dane, Scottish deerhound, and Irish wolfhound appear to be over represented. This discussion will emphasize breed specific findings and newer developments in the understanding of etiologies, clinical presentation, diagnosis, screening and treatment for canine DCM as well as arrhythmogenic cardiomyopathy in the Boxer