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Arrhythmogenic Right Ventricular Cardiomyopathy - Feline Cardiomyopathies (view source)
Revision as of 11:24, 14 January 2013
, 11:24, 14 January 2013→Echocardiography
There may be left atrial dilation in some cats with ARVC because end-stage disease may also effect the left ventricle and left atrium.
There may be left atrial dilation in some cats with ARVC because end-stage disease may also effect the left ventricle and left atrium.
==== Two Dimensional and M-mode====
====Two Dimensional and M-mode====
* Right ventricular dilation +/- aneurismal thinning (thinning of the myocardial wall, usually at the apex)
* Right ventricular dilation +/- aneurismal thinning (thinning of the myocardial wall, usually at the apex)
* Right ventricular hypokinesia
* Right ventricular hypokinesia
====Doppler====
====Doppler====
* Mild tricuspid regurgitation
* Mild tricuspid regurgitation
====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.
==Treatment==
==Treatment==
==Prognosis==
==Prognosis==
==References==
==References==