most common acquired in dogs?
DCM, arrythmogenic right ventricular cardiomyopathy, HCM
DCM
heritable in boxer, doberman, great dane, newfie
DCM
more common in male or female?
male
DCM
dilation of what compartment?
LV (with systolic dysfx)
can tachycardia induce DCM?
yes (leads to enlargement of all four heart chambers)
what does doxorubicin (adriamycin) cause?
reversible?
DCM
yes
what does toxoplasma gondii cause?
DCM
what does trypanosoma cruzi cause?
DCM
DCM
what two viruses can cause?
parvo and distemper
DCM
what endocrine dz can contribute?
hypothyroidism
DCM
what nutritional disorders can contribute?
taurine, carnitine
DCM
causes left or right sided heart failure?
both
DCM
murmur?
systolic left or right heart murmur (associated with atrioventricular valvular regurgitation)
DCM
can see enlargement of what on radiographs?
all four
DCM
best way to treat?
medical
ACE inhibitors, CHF management, antiarrhythmic therapy
DCM
which of these carry a poor prognosis
tachycardia, toxic, infectious myocarditis, endocrine, nutritional, idiopathic
infectious and idiopathic
Arrhythmogenic right ventricular cardiomyopathy
- what happens?
- familial in what breed?
- inherited how?
- fatty or fibrofatty infiltration of the right ventricle
- boxers
- autosomal dominant
Arrhythmogenic right ventricular cardiomyopathy
- characterized by syncope, ventricular arrhythmias with a right ventricular origin, and occasioanlly systolic dysfunction
- tx = antiarryhtmic meds such as solatol or mexilitine combined with atenolol
- high risk of sudden death
HCM
- characterized by what?
- how often in dogs?
- idiopathic concentric hypertrophy of the ventricle
- rare
(rule out secondary causes of ventricular hypertrophy - aortic stenosis, systemic hypertension, neoplasia)
