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Flashcards in Equine Cardiology Deck (10)
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1

What are common non-pathologic heart arrhythmias in healthy (athletic) horses?

2* AV block

2

What are characteristics of a 2* AV block on ECG?

Slow normal HR, normal QRS, P-waves not always followed by QRS

3

How do you treat a 2* AV block in a healthy horse?

None

4

How can you diagnose a 2* AV block in a healthy horse on auscultation?

Regular rhythm w/dropped beats

5

What is the most common pathologic arrhythmia in horses?

A-fib

6

What are characteristics of A-fib on ECG?

High normal HR, normal QRS, irregular R-R, no P-waves just fibrillation waves

7

What are clinical signs of A-fib?

None, exercise intolerance/poor performance

8

How do you treat A-fib?

None if asymptomatic, quinidine

9

What are side effects of quinidine in horses?

D+, colic, laminitis

10

How common is it to see side effects of quinidine administration in horses?

Common