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Zappalla
Pediatric Cardiology
104
Medical
Graduate
09/16/2006

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Cards

Term
where does oxygenation occur
Definition
placenta
Term
55% of umbilical venous blood returns to IVC-RA via what?
Definition
ductus venosus
Term
where should you take BP in children?
Definition
all 4 extremities
Term
what are you ruling out when you take BP in all 4 limbs?
Definition
coarctation of aorta
Term
low BP in legs, high BP in arms
Definition
coarctation after L subclavian
Term
low BP in L arm, high in R arm and leg
Definition
coarc before L subclavian
Term
Split heart sounds are normal in children, But if it's widely split, what might be the problem?
Definition
RBBB or Ebstein's anomaly (inferior displacement of tricuspid valve)
Term
What phase of respiration is better to hear a split S2?
Definition
inspiration
Term
3 differentials for wide split S2
Definition
1) ASD
2) TAPVR
3) PS
Term
3 differentials for narrowly split S2
Definition
1)pulmonary HT
2)single semilunar valve
3)transposition of great arteries
Term
Increased P2 (pulmonic closure) indicates what?
Definition
pulmonary HT
Term
Decreased P2 indicates what 3 things?
Definition
1)severe PS
2)TOF
3)TA=tricuspid atresia
Term
S3 can be normal in children. But if it's loud, what might it be?
Definition
VSD or CHF
Term
Is S4 normal in kids?
Definition
no-it indicates poor compliance
Term
an ejection click heard at the base may indicate what 4 things?
Definition
1)AS
2)PS
3)Pulm HT
4)TOF
Term
Pt has a midsystolic click heart @ apex; what is it associated with?
Definition
MVP-rare except in Marfan's
Term
5yo child has a grade II systolic murmur w/a musical sound, localized to LLSB, and it increases when child is supine. When the child runs, the murmur is louder. What is the murmur?
Definition
Still's murmur: common bw 2-7yo
Term
Child has a grade 2 blowing, high pitched murmur @ Left sternal border that increases when child is supine. What is the differential diagnosis? How can you differentiate?
Definition
ASD and pulmonic flow murmur
diff by EKG
Term
Child has a continuous murmur below the clavicle that is loudest when the child is sitting and disappears when the child is supine. The murmur gets louder when the child moves their head away from the murmur. What is it?
Definition
venous hum
Term
Premature infant has a short systolic ejection murmur that radiates to the axilla. At 4mo, the murmur is gone. What is the murmur and what causes it?
Definition
-peripheral pulmonic stenosis
-hypoplastic branched arteries and angle of takeoff cause this murmur. as child grows, the angle decreases and the murmur disappears
Term
If mom is an alcoholic, what is the child at risk for?
Definition
1)VSD
2)ASD
3)TOF
4)coarctation
Term
Child is born w/Ebstein's anomaly or tricuspid atresia. What is the most likely teratogen?
Definition
Lithium
Term
Fetal hydrantoin is most likely to cause what?
Definition
1)VSD
2)ASD
3)PDA
4)TOF
5)coarctation
Term
Child is born with conotruncal abnormalities. What is most likely to cause?
Definition
retinoic acid
Term
What is the most common trisomy with multiple malformations?
Definition
downs (21)
Term
40% of downs syndrome patients have what heart problems?
Definition
VSD or complete AV canal defect
Term
Trisomy 18 (Edward's syndrome) px are most likely to have what CHD?
Definition
VSD-polyvalvular nodular dysplasia
Term
Patau's syndrome (13) px are most likely to have what CHD?
Definition
VSD, ASD, PDA
Term
Marfan's px have a defect in what chromosome that codes for what protein?
Definition
chr 15 coding for fibrillin
Term
What is the major cardiac finding in Marfan's px?
Definition
aortic dissection
Term
Can a 15yo Marfan's px try out for the football team?
Definition
NO!!!
Term
Replace f the aortic dissection is greater than what?
Definition
4cm
Term
What's the mortality rate for a pregnant Marfan's px?
Definition
50%
Term
A Noonan's px is most likely to have what?
Definition
valvular pulmonary stenosis
Term
80% of digeorge's patients (22q11 deletion) have what type of defect?
Definition
conotruncal
-Truncus arteriosus
-TOF
-interrupted aortic arch
-VSD
Term
A short stature 20yo female hasn't gone through puberty yet. She has coarctation of the aorta and a bicuspid aortic valve. What is her syndrome? What causes it?
Definition
Turner syndrome:
-she is missing one pair of chromosomes
-45X0
Term
A 2mo has an EKG w/RAD and inverted T waves in V1 and V3. What is the diagnosis?
Definition
normal EKG for infant
Term
If ERAD in infant's EKG, what is it?
Definition
likely to be Downs
Term
normal HR for baby
Definition
110-150
Term
Px has complete heart block and HR of 42. What is the tx?
Definition
pacemaker if HR is <55
Term
A child w/congenital heart block is most likely to be born to a mother that has what type of disease?
Definition
maternal collagen vascular disease
Term
A child w/congenital heart block is most likely to be born to a mother that has what type of disease?
Definition
maternal collagen vascular disease
Term
A child w/congenital heart block is most likely to be born to a mother that has what type of disease?
Definition
maternal collagen vascular disease
Term
An infant has surgery to repair a VSD. After the surgery, the child has a surgical heart block that has been present for more than 2 weeks. What is the tx?
Definition
permanent pacemaker
-if sx last 10 days to 2weeks, it is a temporary pacemaker
Term
Though tachycardia isn't a primary cardiac problem, what are 2 major cardiac causes you must rule out?
Definition
1)myocardial disease (myocarditis)
2)CHF
Term
1)During what phase of respiration does HR increase?
2)What nerve mediates this variation?
Definition
1)inspiration
2)vagus
Term
An otherwise normal newborn has a PAC. Should you be worried?
Definition
No, they are normal (20% of kids have them)
Term
Do you worry if you see a PAC + PVC?
Definition
yes, there's a blockage (aberrancy)
Term
How do you treat SVT d/t WPW?
Definition
propranolol: to slow AV conduction
-can also use digoxin
Term
2 patients come in w/SVT. One is 3mo, the other is 6yo. Which is more likely to have a recurrence?
Definition
6yo
Term
Infant presents w/HR of 275 (260-280). Px also is tachypneic, coughing, not eatin well, and irritable. You diagnose him w/SVT. When do you need to worry about the development of CHF?
Definition
24-48 hours
Term
Px has palpitations, clammy skin, sx while resting, HR 250-270, episodes that last 10-15 minutes, lightheadedness (no syncope) and no CHF. What is the diagnosis?
Definition
SVT
Term
8 yo has SVT. What is the emergency tx?
Definition
1)vagal maneuvers
--diving reflex, valsalva
2)adenosine: but will not terminate primary atrial tachycardia
Term
How is SVT tx different in children and infants?
Definition
Infants: NO IV VERAPAMIL (CV SHOCK)
-Use IV adenosine in both!
Term
If infant is unresponsive to adenosine or ice, what do you do?
Definition
synchronized direct current cardioversion
Term
What drug do you use for immature fetal SVT?
Definition
digoxin: need toxic doses to cross the placenta

hydropic fetus will NOT respond to maternal therapy
Term
15yo soccer player has LVH, nonspecific ST-T wave changes, Q wave changes, and has a HR of 52. Should you forbid them to play?
Definition
no: all are false positive findings in athletes
Term
What are 3 things you must rule out in PVC patient?
Definition
1)HCM
2)long QT syndrome
3)RV dysplasia
Term
Child has an idiopathic seizure. What do you do?
Definition
EKG and QTc measurement
Term
During workup, px has exercise induced PVCs. What is the prognosis?
Definition
poor-benign PVCs are suppressed by exercise
Term
What are the 3 ions involved in long QT syndrome?
Definition
Na, K, Ca
Term
What is the difference bw Jervell, Lange-Nielsen, and Romano-Ward forms of Congenital long QTc syndrome?
Definition
Jervell and Lange-Nielsen:
---rare, autosomal recessive

Romano-Ward
----autosomal dominant
Term
Px faints during exercise or w/loud noises or stress. Px has a family member that died suddenly @ 30yo. What is the likely cause?
Definition
Long QT syndrome
Term
How do you treat long QT syndrome?
Definition
AVOID DRUGS THAT PROLONG QT INTERVAL
no competitive sports
beta blockers
implantable defibrillator
Term
Does the foramen ovale always close?
A patent FO is risk for what?
Definition
no, it is open in 25-30% of kids
-emboli
Term
Px has dilated RA and RV. On EKG, she shows RAD, prolonged PR interval, RSR @ V1. She has a soft systolic flow murmur and a widely split S2. What type of ASD does she have?
Definition
Secundum: most common
Term
What are the 2 syndromes: Ellis van Crevald and Holt Oram Syndrome?
Definition
1)EVC: autosomal recessive prob, shows ASD and upper extremity anomalies: not sure if EVC shows both
2)HOS: autosomal dominant: ASD and UE anomalies
Term
What major problem can secundum ASDs cause to lungs?
Definition
irriversible pulmonary HT
Term
What is the concern w/surgical closure of ASD?
Definition
post pericardiotomy syndrome
-elevated ST segment
-px looks sick
to tx: give anti-inflammatories
Term
1wk old px has CHF sx, EKG shows first degree AV block and superior axis. chest xray shows cardiomegaly and increased pulm vasc markings. What defect is this? What is causing it?
Definition
atrioventricular septal defect: complete defect

1)large primum ASD: common in down's
2)large VSD
3)common atrioventricular valve
Term
What is the most common form of CHD?
Definition
VSD
most common VSD: perimembranous

needs surgery ASAP
Term
4yo px has a small, restrictive VSD. Px is asymptomatic and no endocarditis or aortic insufficiency. Should you perform surgery?
Definition
no, the risk of surgery will outweigh the benefit
Term
2mo has sx of LV failure. EKG shows LVH, prominent q waves, tall R, and peaked T @ V5,6 (RVH). She has cardiomegaly and increased pulm vasc markings @ CXR. What is her condition and how is it diagnosed?
Definition
moderate or large VSD

diag by ECHO
Term
What are the physical findings of a large PDA?
Definition
1)Continuous murmur @ LUSB that doesn't change based on position
2)LA/LV enlargement
3)CHF
Term
What group of infants need surgery for PDA?
Definition
premature and symptomatic neonates
Term
What other defect has similar findings to PDA?
Definition
aortopulmonary window: complete division bw aorta and pulm artery: hear a continuous murmur
Term
What are the 2 MC obstructive lesions?
Definition
PS and AS
Term
Px has a SEM @ LSB (pulmonic area) that radiates to axilla. Px has Noonan's syndrome but is otherwise asymptomatic. What type of obstructive lesion do they most likely have?
Definition
PS
Term
Neonate has CHF and shock sy. What type of lesion do they most likely have?
Definition
Critical AS
Term
Px has fatigue and chest pain. Finding show SEM and systolic ejection click. EKG shows LVH and LV. What is the likely diagnosis?
Definition
AS
Term
Px w/turner's syndrome has diminished femoral pulses and upper extremity HT. She has a SEM @ the base and axilla that radiates to the L interscapular region. What is her condition?
Definition
coarctation of aorta
Term
What is the difference bw EKG in an infant and older child w/coarctation? CXR?
Definition
EKG:
-infant: RVH
-child: LVH
CXR:
-3rd sign
-rib notching
Term
What are the sx of critical coarctation in an infant?
Definition
CHF and shock
Term
What are the tx options for coarctation?
Definition
-surgery:
---end to end anastomosis
---subclavian flap
-catheter:
---balloon angioplasty
---stent placement
Term
What is blue or dusky discoloration of the skin and mucus membranes d/t inadequate oxygen?
Definition
cyanosis
Term
px presents w/cyanosis around their mucus membranes and lips. What type is it?
Definition
central: correlates better w/hypoxemia
Term
What are classic examples of R to L shunting?
Definition
1)TOF
2)Transposition of Great Arteries
3)Hypoplastic L heart syndrome
4)TAPVR
Term
Px presents w/cyanosis, no resp distress, and normal pulses. Px has a single S2, marked hypoxemia, and decreased pulm blood clow. What are the possible lesions?
Definition
1)TOF
2)Pulm atresia
3)critical pulm stenosis
4)tricuspid atresia w/o VSD
Term
What is the most common cause of cyanotic CHD?
Definition
TOF
Term
What are the anatomic findings of TOF?
Definition
Pulmonic stenosis
RVH
Overriding aorta
VSD

(like PROVE)
Term
What is the classic CXR sign of TOF?
Definition
boot shaped heart
Term
Px has profound cyanosis hour after birth, normal pulses, marked hypoedema, acidosis, large heart, and egg on a string appearance of pedicle. What type of lesion?
Definition
Transposition of Great Arteries
Term
What do you do to tx TGA?
Definition
create ASD: balloon atrial septotomy
Term
What is the other inadequate mixing lesion besides TGA?
Definition
truncus arteriosus
Term
Px has gray skin, tachypnea, decreased/absent pulses, and a gallop rhythm. They have a single S2, RV heave, hepatomegaly, metabolic acidosis, and cardiomegaly. What type of lesion do they have?
Definition
decreased systemic flow d/t L heart obstruction:
1)hypoplastic left heart syndrome
2)critical coarctation of aorta
3)interrupted aortic arch
Term
What can happen w/closure of PDA in hypoplastic left heart syndrome?
Definition
cardiogenic shock: don't give oxygen or inotropes (dopamine, dig)
Term
What are the 3 types of TAPVR?
Definition
supracardiac: vertical vein to SVC
infracardiac: vertical vein to hepatic veins....super sick
cardiac: usually to coronary sinus
Term
Severely cyanotic neonate shows massive cardiomegaly. They also have WPW. What is the most likely diagnosis?
Definition
Ebstein's Anomaly: dysplastic redundant tricuspid valve
Term
Baby comes in with apnea and fever. They had been given something to maintain ductal patency. What had they been given?
Definition
PGE1
Term
What are the 3 types of infectious Acquired Heart Disease?
Definition
myocarditis
endocarditis
pericarditis
Term
What are the 3 types of inflammatory AHD?
Definition
rheumatic fever
post-pericardiotomy syndrome (ASD surgery)
collagen vascular syndrome
Term
What are the 2 traumatic causes of AHD?
Definition
blunt and penetrating
Term
3yo asian boy presents w/hx of fever for 7 days, rash @ diaper area, red and painful oral membranes, cervical lymphadenopathy, non-purulent conjunctivitis. Acute phase reactants, ESR and platelets are elevated, what is the dx?
Definition
Kawasaki's disease
Term
How do you treat Kawasaki's?
Definition
IV gamma globulin
aspirin
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