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-Guarded
 
-Guarded
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==From Pathology==
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Often associated with mitral regurgitation and left atrial volume overload.  Usually progresses to left sided heart failure.
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''Incidence:''
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[[Image:AV valve dysplasia cat.jpg|right|thumb|200px|<small><center>'''Mitral dyplasia'''. Courtesy of A. Jefferies</center></small>]]
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*Most common congenital defect in cats.
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*Also reported in pure breed dogs E.g GSD, Great Danes.
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''Clinical Signs:''
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*Often murmur is the only clinical sign; pansystolic with increased intensity over the mitral valve area.
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*May also see exercise intolerance, dyspnoea and coughing.
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''Diagnosis:''
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*Left atrial enlargement on radiology and ECG.
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*Doppler echocardiography can dtect abnormal flow.
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''Treatment:''
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*Prognosis poor, medically manage left heart failure with ACE-inhibitors etc.
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[[Category:Cardiovascular_System_-_Developmental_Pathology]]
 
[[Category:Cardiovascular_System_-_Developmental_Pathology]]
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