Cardiovascular System Flashcards
Cardiac Syncope
Acute onset of cardiac failure causing collapse and unconsciousness
Congestive heart failure
Develops slowly from gradual loss of cardiac output due to pressure or volume overload or myocardial injury
Clinical signs of congenital anomalies
Exercise intolerance
Cyanosis
Stunted body growth
4 abnormalities of Tetralogy of Fallot
- Narrowing of the pulmonary valve
- Thickening of wall of right ventricle
- Displacement of aorta over ventricular septal defect
- Ventricular septal defect- opening between the left and right ventricles
Pathogenesis of Tetralogy of Fallot
Overriding aorta, pulmonic stenosis –> right ventricle hypertrophy
Jet lesions
endocardial fibrosis
Jet lesions pathogenesis
endocardial fibrosis associated with chronic trauma from high pressure from the right ventricle producing chronic trauma
Patent Ductus Arteriosus
No closure of the ductus arteriosus causing blood to go from the right side of the heart and increase blood and increase the work load eventually leading to pulmonary hypertension, hypertrophy of the right ventricle and eventually right sided congestive heart failure
Persistent Right Aortic Arch
The cranial portion of the esophagus if dilated due to the ligamentum arteriosum obstructing the esophagus
Cause of Mulberry heart disease
Vitamin E/Selenium Deficiency
Endocardial mineralization
secondary to excessive vitamin D or calcinogenic plants
In what animals does Endocardial mineralization occur?
Cattle with Johne’s Disease
Valvular endocardiosis affects what age of dogs?
Middle aged to old dogs
Cavalier King Charles Spaniels
What is valvular endocardiosis characterized by?
Degeneration of valvular collagen
What lesions are characteristic of Endocarditis?
“vegetative” or “verrucous” valvular endocarditis