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Hypertrophic Cardiomyopathy (view source)
Revision as of 12:13, 5 September 2008
, 12:13, 5 September 2008New page: {{toplink |backcolour = |linkpage =Cardiology - WikiClinical |linktext =Cardiology |sublink1=Cardiovascular Conditions - WikiClinical |subtext1=CARDIOVASCULAR CONDITIONS |maplink1= Cardiov...
{{toplink
|backcolour =
|linkpage =Cardiology - WikiClinical
|linktext =Cardiology
|sublink1=Cardiovascular Conditions - WikiClinical
|subtext1=CARDIOVASCULAR CONDITIONS
|maplink1= Cardiovascular Conditions (Content Map) - WikiClinical
|pagetype=Clinical
}}
<br>
[[Image:hypertrophic cardiomyopathy.jpg|right|thumb|125px|<small><center>'''Hypertrophic cardiomyopathy (cat)'''. Courtesy of T. Scase</center></small>]]
[[Image:hypertrophic cardiomyopathy 2.jpg|right|thumb|125px|<small><center>'''Hypertrophic cardiomyopathy (cat)'''. Courtesy of T. Scase</center></small>]]
*Rare in dogs
*Common in cats
===Signalment===
Dogs: Rare
Cats: Pedigrees (e.g. Persians, Maine Coons) & mixed breeds; Occurs in young pedigrees and young to old mixed breeds; Male>Female
===Description===
*Left ventricular concentric hypertrophy without an identifiable cause is known as hypertrophic cardiomyopathy. The ventricular myocardium becomes so thick that the lumen is reduced to a size that is not compatible with maintaining the heart's function as a pump. The left ventricle no longer has the capacity to hold normal volumes of blood during diastole. As a result, the left atrium dilates from the increased pressure and volume of blood backing up into the lungs.
===Diagnosis===
====History & Clinical Signs====
-Asymptomatic
-Hindlimb paresis or weakness (saddle thrombus see in cats)
-Signs of left-sided heart failure
====Physical Exam:====
-Systolic murmur
-Ventricular arrhythmias
===Radiography====
-Left atrial enlargement
-Enlarged heart
-Pulmonary congestion & edema
===Electrocardiography (ECG)====
-Tall R wave
-Wide QRS
-Ventricular arrhythmias
-Conduction disturbances
-Sinus tachycardia
====Echocardiography====
-Left ventricular concentric hypertrophy
-Left atrial enlargement
-Mitral valve insufficiency
===Treatment===
-Treat the individual symptoms
Contraindications: Arterial Vasodilators; Positive Inotrops
===Prognosis===
-Poor for symptomatic cats
|backcolour =
|linkpage =Cardiology - WikiClinical
|linktext =Cardiology
|sublink1=Cardiovascular Conditions - WikiClinical
|subtext1=CARDIOVASCULAR CONDITIONS
|maplink1= Cardiovascular Conditions (Content Map) - WikiClinical
|pagetype=Clinical
}}
<br>
[[Image:hypertrophic cardiomyopathy.jpg|right|thumb|125px|<small><center>'''Hypertrophic cardiomyopathy (cat)'''. Courtesy of T. Scase</center></small>]]
[[Image:hypertrophic cardiomyopathy 2.jpg|right|thumb|125px|<small><center>'''Hypertrophic cardiomyopathy (cat)'''. Courtesy of T. Scase</center></small>]]
*Rare in dogs
*Common in cats
===Signalment===
Dogs: Rare
Cats: Pedigrees (e.g. Persians, Maine Coons) & mixed breeds; Occurs in young pedigrees and young to old mixed breeds; Male>Female
===Description===
*Left ventricular concentric hypertrophy without an identifiable cause is known as hypertrophic cardiomyopathy. The ventricular myocardium becomes so thick that the lumen is reduced to a size that is not compatible with maintaining the heart's function as a pump. The left ventricle no longer has the capacity to hold normal volumes of blood during diastole. As a result, the left atrium dilates from the increased pressure and volume of blood backing up into the lungs.
===Diagnosis===
====History & Clinical Signs====
-Asymptomatic
-Hindlimb paresis or weakness (saddle thrombus see in cats)
-Signs of left-sided heart failure
====Physical Exam:====
-Systolic murmur
-Ventricular arrhythmias
===Radiography====
-Left atrial enlargement
-Enlarged heart
-Pulmonary congestion & edema
===Electrocardiography (ECG)====
-Tall R wave
-Wide QRS
-Ventricular arrhythmias
-Conduction disturbances
-Sinus tachycardia
====Echocardiography====
-Left ventricular concentric hypertrophy
-Left atrial enlargement
-Mitral valve insufficiency
===Treatment===
-Treat the individual symptoms
Contraindications: Arterial Vasodilators; Positive Inotrops
===Prognosis===
-Poor for symptomatic cats