Canine Cardiomyopathy

Question 1

What is the most common cardiomyopathy see in dogs?

Answer 1

DCM

Question 2

Which breed is predisposed to familial arrhythmogenic cardiomyopathy?

Answer 2

Boxers

Question 3

What is DCM?

Answer 3

1* myocardial disease w/cardiac enlargement and impaired systolic function

Question 4

What breeds are prone to DCM?

Answer 4

Large breeds (esp Doberman)

Question 5

What type of diet is linked to DCM?

Answer 5

Grain-free

Question 6

What are early clinical signs of DCM?

Answer 6

Fainting, exercise intolerance, asymptomatic

Question 7

Respiratory distress results from CHF of which side of the heart?

Answer 7

L-CHF

Question 8

Abdominal distention from ascites results from CHF of which side of the heart?

Answer 8

R-CHF

Question 9

How do you dx DCM?

Answer 9

Echo w/poor contractility and shortening fraction

Question 10

How do you treat early stages of DCM?

Answer 10

ACE inhibitors/pimobendan for early disease

Question 11

How do you treat arrhythmias assoc. w/DCM?

Answer 11

Sotalol, amiodarone, low dose atenolol

Question 12

What is familial arrhythmic cardiomyopathy also known as?

Answer 12

ARVC

Question 13

Of what inheritance is ARVC in Boxers?

Answer 13

Autosomal dominant

Question 14

What type of arrhythmias do you see with ARVC?

Answer 14

VPCs

Question 15

What is a major clinical sign of ARVC?

Answer 15

SYncope

Question 16

How do you diagnose ARVC?

Answer 16

24h holter monitor

Question 17

When should you treat asymptomatic ARVC?

Answer 17

> 100 VPCs/24h or runs of couplets, VT, or R-on-T

Question 18

How do you treat ARVC dogs with syncope?

Answer 18

Sotolol or mexilitine + atenolol

Question 19

How do you treat an ARVC dog with systolic dysfunction and heart failure?

Answer 19

Same as DCM + L-carnitine