TNNI3 and arrhythmogenic right ventricular cardiomyopathy: <h4>Background</h4>Evidence regarding the diagnostic utility of serum anti-desmoglein-2 (DSG2) autoantibodies for arrhythmogenic right ventricular cardiomyopathy (ARVC) in boxer dogs is conflicting.<h4>Methods</h4>Prospective standardised evaluation of apparently healthy boxer dogs for ARVC was performed at three referral centres, including blood pressure measurement, electrocardiography, echocardiography, haematology, biochemistry (including cardiac troponin I) and 24-hour Holter monitoring.