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Arrhythmogenic Right Ventricular Cardiomyopathy - Feline Cardiomyopathies (view source)
Revision as of 11:28, 14 January 2013
, 11:28, 14 January 2013→Diagnosis
====Differential Diagnoses====
====Differential Diagnoses====
The main differential for ARVC in cats is tricuspid dysplasia, which causes severe volume overload to the right ventricle and right atrium. Colour flow doppler interrogation of the tricuspid valve in ARVC often reveals a mild central jet of tricuspid regurgitation secondary to annular dilation. The tricuspid valve appeas structurally normal. In comparison, a cat with tricuspid dysplasia would have significant tricuspid regurgitation and a structurally abnormal tricuspid valve with clubbed, thickened leaflets and a short, thickened chordae tendinae combined with abnormal papillary muscles. The distinction is important because prognosis for ARVC is grave compared with tricuspid dysplasia.
The main differential for ARVC in cats is tricuspid dysplasia, which causes severe volume overload to the right ventricle and right atrium. Colour flow doppler interrogation of the tricuspid valve in ARVC often reveals a mild central jet of tricuspid regurgitation secondary to annular dilation. The tricuspid valve appeas structurally normal. In comparison, a cat with tricuspid dysplasia would have significant tricuspid regurgitation and a structurally abnormal tricuspid valve with clubbed, thickened leaflets and a short, thickened chordae tendinae combined with abnormal papillary muscles. The distinction is important because prognosis for ARVC is grave compared with tricuspid dysplasia.
===Electrocardiography (ECG)===
Ventricular arrhythmias are common in cats with ARVC and can lead to syncope or sudden death. The arrhythmias are caused by macroreentrant circuits that develop in regions of fibrofatty replacement of cardiomyocytes.
==Treatment==
==Treatment==
==Prognosis==
==Prognosis==
==References==
==References==