3. Mitral and Tricuspid Dysplasia (esp cats, esp mitral)
How can the great vessels be displaced?
1. Persistent R.Aortic Arch - forms a vascular ring around esophagus and trachea, causing Proximal Megaesophagus
2. Transposition of aorta and pulmonary artery
What is Ectopia cordis?
Heart is outside of the thoracic cavity.
Most frequent in Cattle
What is the condition in cats/dogs in which the intestine and/or liver enter the pericardial sac?
Peritoneal-pericardial diaphragmatic hernia
What are the 4 lesions of Tetralogy of Fallot?
1. Pulmonic Stenosis
2. Ventricular Septal Defect
3. Dextroposition of Aorta
4. R-Vent Hypertrophy (secondary)
What happens in Tetralogy of Fallot?
Pulmonic Stenosis -> increase R pressure -> R-vent Hypertrophy -> Blood shunting R to L through Ventricular Septal Defect -> venous blood enters systemic circulation (due to great dextropositioning) -> Cyanosis