04 - tetralogy of fallot and atrioventricluar valvular dysplasia

Question 1

(tetralogy of fallot)

1-4. characterized by what 4 things?

Answer 1

1. ventricular septal defect
2. pulmonic stenosis
3. overriding aorta
4. right ventricular hypertrophy

Question 2

(tetralogy of fallot)

1. pulmonic stenosis creates obstruction to blood flow into the plumonary artery. deoxygenated blood is delivered to the systemic circulation, resulting in hypoxemia

Question 3

what is the most common cyanotic congenital heart defect in dogs?

Answer 3

tetralogy of fallot

Question 4

genetics of tetralogy of fallot?

Answer 4

simple autosomal recessive

Question 5

tetralogy of fallot

common breeds?

Answer 5

keeshond, english bulldog

Question 6

tetralogy of fallot

Cx = may be normal, ex intol, lethargy, syncope, seizures, dyspnea from hypoxemia, ascites

Question 7

tetralogy of fallot

physical exam

systolic left or right basilar murmur of pulmonic stenosis, noraml pulse quality, ascites, jugular venous distension

Question 8

(tetralogy of fallot)

radiographic signs?

Answer 8

right ventricular enlargement, decreased pulmonary vasc, poststenotic dilation of main pulmonary artery

Question 9

(tetralogy of fallot)

1. balloon valvuloplasty for pulmonic stenosis, beta blockers, CHF stuff

Question 10

(tetralogy of fallot)

(prog)

1. mild - rare Cx
2. mod - may get Cx
3. severe - Cx, shortened life span, risk of sudden death

Question 11

(Atrioventricular valvular dysplasia)

mitral and tricuspid valve dysplasia

malformation of the valve leaflets, chordae tendinae or papillary msucles result in regurgitation of the valve, valvular stenosis, or both

Question 12

(atrioventricular valve dysplasia)

Question 13

tricuspid valve failure leads to right or left sided heart failure?

which causes what?

Answer 13

right

ascites

Question 14

mitral valve dysplasia leads to left or right sided heart failure?

which causes what?

Answer 14

left

cough, dyspnea

Question 15

tricuspid valve dysplasia

where murmur?

Answer 15

systolic right sided murmur

Question 16

mitral valve dysplasia

murmur where?

Answer 16

systolic left apical murmur

Question 17

tricuspid valve dysplasia

radiographs

see enlargement of what?

Answer 17

RA, RV, caudal vena cava

Question 18

mitral valve dysplasia

radiographs

enlargement of what?

Answer 18

LA, LV, pulmonary venous enlargement

Question 19

(Atrioventricular valve dz)

treatment?

Answer 19

balloon valvuloplasty (tricuspid valve stenosis), surgery hard

medical mgmt for CHF and antiarrythmic therapy

Question 20

(atrioventricluar valve dz)

prog like everything else…