Journal of Veterinary Cardiology Flashcards
(5 cards)
A 6-month-old Vietnamese potbellied pig presented with exercise intolerance and exertional cyanosis. Echocardiography revealed both great arteries arising from the right ventricle, and a subaortic VSD without a distinct arterial outlet from the left ventricle. What is the most likely diagnosis?
Options:
A. Tetralogy of Fallot
B. Double-outlet right ventricle
C. d-transposition of the great arteries
Double-outlet right ventricle
A 4-month-old pot-bellied pig presented with tachypnea, syncope, and a right-sided heart murmur. Echocardiography showed a dilated right ventricle and severe tricuspid regurgitation. Histology revealed concentric medial hypertrophy of pulmonary arteries with rare plexiform lesions. What is the most likely diagnosis?
Options:
A. Pulmonary thromboembolism
B. Idiopathic pulmonary arterial hypertension
C. Ventricular septal defect with pulmonary overcirculation
Idiopathic pulmonary arterial hypertension
A pet ferret with syncope and third-degree AV block underwent epicardial pacemaker implantation. Which approach is most commonly used for pacemaker placement in this species based on a case series of eight ferrets?
Options:
A. Transvenous jugular access
B. Transdiaphragmatic approach
C. Subxiphoid thoracotomy
Transdiaphragmatic approach
A pet rabbit presented with a sudden-onset heart murmur. Echocardiography revealed an aortic-to-right atrial fistula originating from the right aortic sinus. Necropsy confirmed a lack of infectious or inflammatory etiology. What is the most likely cause?
Options:
A. Congenital ventricular septal defect
B. Sterile rupture of the right aortic sinus
C. Bacterial endocarditis
Sterile rupture of the right aortic sinus
In a study of 22 healthy guinea pigs, which echocardiographic parameter was found to be negatively correlated with heart rate?
Options:
A. Left atrial diameter
B. Left ventricular internal diameter in systole (LVIDs)
C. Aortic velocity
Left ventricular internal diameter in systole (LVIDs)
