Flashcards in Cardiac Conditions Deck (40)
Which direction does a PDA shunt blood?
L to R (from aorta to pulmonary artery)
Continuous/washing machine mumur
What is the most common congenital heart defect in dogs?
What is the most common congenital heart defect in species other than dogs?
How do you treat a PDA?
Surgical ligation or coil embolization
How do you treat a reverse PDA?
Which valve is most commonly affected by endocarditis in cows?
Which valve is most commonly affected by endocarditis in horses and small animals?
Aortic and mitral
What can valvular endocarditis lead to?
Does aortic regurgitation cause poor performance in horses?
Decrescendo holodiastolic murmur @ left base of horse heart
What will you see on an echo of valvular endocarditis?
Vegetative lesions on heart valves
Muffled heart sounds, pulsus paradoxus, and electrical alternans are all assoc. w/what heart condition?
How do you treat a pericardial effusion?
Why should you not give furosemide to a pericardial effusion?
Decreases preload on R heart = circulatory failure
How will a pericardial effusion present on necropsy?
Nutmeg liver d/t R-CHF
How will a pericardial effusion appear on rads?
Enlarged globoid heart
Which arrhythmia causes pulse deficits but is usually clinically insignificant and is only sometimes assoc. w/cardiac disease?
What is the most common supraventricular arrhythmia in cattle?
What causes A-fib in cattle?
Vagal tone, hypo/hyperK, Ca therapy
What is the most common pathologic arrhythmia in horses?
Pulsus alternans is assoc w/which arrhythmia?
How do you treat A-fib in a horse?
Quinidine (Na channel blocker)
If quinidine treatment of A-fib causes acceleration in ventricular response rate or HR >90, what other drug should you use as an adjunctive treatment?
How do you treat A-fib in a dog?
Diltiazem, digoxin, atenolol, procainamide
Chaotic electrical activity and mechanical activity during cardiac arrest?
When should you treat a dog with VPCs?
>100/24h, HR >180, R-on-T
How do you treat V-tach?