03 - congenital: PDA and pulmonic stenosis Flashcards
1
Q
(PDA)
- dogs or cats?
- M or F more?
- heritable?
A
- dogs
- female
- yes
2
Q
(PDA)
- results from lack of what?
- shunt direction?
A
- ductal smooth muscle
- left to right (aorta into pulm artery)
3
Q
(PDA)
- common breeds: min poodle, maltese, german shephard, yorkshire terrier, shetland sheepdog, collie, pomeranain, lab, bichon frise
A
4
Q
(PDA)
- murmur location
- timing
- pulse quality
A
- left base
- continous
- bounding
5
Q
(PDA)
- enlargement of heart where?
A
- LV and LA
6
Q
(PDA)
radiographs
normal in dogs with mild disease
- see what?
A
- LA and LV enlargement
7
Q
(PDA)
blood pressure
- systolic?
- diastolic?
A
- normal
- decreased
8
Q
(PDA)
- treatment?
A
- plug it or ligate it
(+medical mgmt for CHF)
9
Q
(PDA)
(prog)
- small -> might not develop Cx
- large: develop Cx, shortened life span w/o tx
A
10
Q
when would you see R to L shunting PDA?
A
when ^ pulmonary vascular resistance
can’t close it -> prog is poor
11
Q
(pulmonic stenosis)
- common in dogs
- can get worse with age
- somteimes left coronoary artery encricles RV outflow tract causing this (bulldogs and boxers)
A
12
Q
(pulmonic stenosis)
- heritable?
- breeds: english bulldog, west highland white terrier, boxer, chihuahua, mastiff, beagle
A
- yes
13
Q
(pulmonic stenosis)
- Cx?
A
- may be normal, ex intol, lethargy, syncope, ascites, sudden death
14
Q
(pulmonic stenosis)
- murmur location?
- timing?
- pulse quality?
A
- left base
- systolic
- normal
15
Q
(pulmonic stenosis)
- enlargement of what chambers?
A
- RA and RV
(enlarged caudal vena cava)
