Congeital Heart Defects Flashcards

0
Q

Shunts for fetal circulation

A

Ductus venosus
Foremen ovale
Ductus arteriosis

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1
Q

Embryonic development of heart is by ______ weeks

A

12 weeks

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2
Q

Foremen ovale shunts blood from which ____ side to the ______ side

A

Left to right

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3
Q

Ductus arteriosus shunts blood from the…

A

Lungs

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4
Q

Path of fetal circulation

A

From mother, to fetus via umbilical vein, through fetal circulation…
Returns partially oxygenated and deoxygenated blood to mother via umbilical arteries

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5
Q

Incidence of congenital heart defects

A

5 to 8 in every 1000 live births

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6
Q

Congenital heart defects have an increased incidence in what kind of babies/births?

A

Premature, stillborns, low birth weight infants, and spontaneous abortions

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7
Q

Two major groups of heart defects are…

A

Congenital heart defects and acquired cardiac disorders

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8
Q

Types of congenital heart defects

A

Congestive heart failure and hypoxemia

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9
Q

Acquired cardiac disorders are from…

A

Infection, autoimmune responses, environmental factors, familial

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10
Q

Prenatal and maternal factors for congenital heart defects

A

Rubella, alcohol abuse, older than 40, type 1 diabetes

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11
Q

Genetic factors that put infants at risk for congenital heart defects

A

Sibling with a defect, parent with CHD, chromosomal problem, born with other noncardiac abnormality

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12
Q

What is pulmonary congestion?

A

A backup of fluid into lungs

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13
Q

What is a right to left blood shunt and the results of it?

A

Blood from right side enters left side of heart and causes hypoxemia, cyanosis, and polycythemia

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14
Q

What is polycythemia?

A

Increased viscosity in the blood because there are more RBCs than needed, prone to strokes

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15
Q

What is a left to right shunt and results of it

A

Blood flow from the high pressured left side to low pressure right side and causes tachypnea, dyspnea, and pulmonary edema

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16
Q

Symptoms of pediatric pulmonary hypertension

A

Tachycardia- over 160, tachypnea- over 60, s3 and s4 heart sounds, dyspnea, diaphoresis, easily fatigued,

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17
Q

What are acyanotic defects?

A

Increased pulmonary blood flow, ASD, VSD, PDA

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18
Q

What are cyanotic defects?

A

Decreased pulmonary blood flow, tetrology of fallot, transportation of great arteries

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19
Q

What is atrial septal defect (ASD)?

A

An abnormal opening between the right and left atrium from an incompetent foremen ovale and cause incorrect development of atrial septum

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20
Q

Clinical manifestations of Atrial septal defect

A

Can be asymptomatic, congestive heart failure symptoms, a murmur, and atrial dysrhythmiasw

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21
Q

Treatment of atrial septal defect (ASD)

A

Surgical with a Dacron patch or no surgical with cardiac catheterization

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22
Q

Surgical treatment of ASD requires…

A

Bypass and a 4-6 day stay

23
Q

What is ventricular septal defect (VSD)?

A

An abnormal opening between the left and right ventricles

24
Types of ventricular septal defects
Membranous and muscular
25
Clinical manifestations of ventricular septal defect
CHF, murmur, bacterial endocarditis, eisenmenger syndrome
26
Ventricular septal defect treatment
Surgical (palliative or a repair) Nonsurgical with cardiac cath Need bypass
27
What is Patent Ductus Arteriosus (PDA)?
Failure of ductus arteriosus to close after the first weeks of life. Blood flow is altered. Increased workload on left side of heart
28
Patent Ductus Arteriosus (PDA) blood flow alteration
Left side of heart has increased workload -- increases pulmonary vascular congestion and resistance, potential increase in right ventricular pressure and hypertrophy.
29
Clinical manifestations of patent ductus arteriosus (PDA)
Asymptomatic, CHF symptoms, machinery like murmur (humming top), widened pulse pressure, bounding pulse
30
Treatment of patent ductus arteriosus (PDA)
medical- endocin, or surgical is open heart surgery
31
What is Coarctation of the Aorta (COA)?
Narrowing of the aortic arch near the insertion of the ductus arteriosus with increase pressure near the narrowing and decreased pressure distal to the narrowing-- causes ventricular workoverload
32
Clinical manifestations of coarctation of the aorta (COA)?
increased BP, bounding pulses, weak/absent femoral pulses Cool lower extremities, symptoms worsen dizziness, faintness, headaches, increased BP
33
Treatment of coarctation of the aorta (COA)?
Surgical or nonsurgical
34
What is tetrology of fallot (TOF)?
When right ventricle contracts, blood resistance occurs related to pulmonary stenosis. Blood is shunted across ventricular septal defect, into the aorta, and the left ventricle gives persistent arterial unsaturation--- CYANOSIS
35
Four main defects of tetrology of fallot (TOF)?
Pulmonary stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy
36
Clinical manifestations of tetrology of fallot (TOF)?
Cyanosis, clubbing, systolic murmur, delayed growth and development, hypoxia, tet spells, squatting
37
Risks associated with tetrology of fallot (TOF)?
Emboli, brain abscesses, seizures, loss of consciousness,
38
Treatment of Tetrology of fallot (TOF)?
surgical- palliative- Balock-Taussig or Modified Blalock-Taussig Shunt and a complete repair in the 1st year of life
39
What is Transposition of the Great Areries and Transposition of the Great Vessels (TGA/TGV)?
When the pulmonary artery leaves the left ventricle and the aorta exits the right ventricle with no communication between the systemic and pulmonary circulations- mixed defect
40
What is basically happening with TGA and TGV?
the aorta and pulmonary artery are switched.
41
What are symptoms of TGA and TGV?
dependent on type and size of defects
42
Treatment of TGA/TGV
therapeutic prostaglandin and increased oxygen Cardiac catheterization- rashkind surgical- transection and anastomosis
43
Nursing Care- Patient history
family history of heart disease- sibilings too contact with teratogens- infections, drugs, alcohol history of genetic chromosomal abnormality poor weight gain and appetite Respiratory infections, heart murmurs, cyanosis
44
Assessment of clinical manifestations
activity intolerance with/without color changes, rest periods, weight gain/loss, difficulty eating and sucking, unusual position, skin assessment, lab studies, Tets
45
Physical Assessment of Peds patient
VS, Inspect skin, posture, clubbing, Palpate peripheral pulses and cap refill, Percuss liver size, Auscultate apical pulse, murmurs, lungs
46
Diagnostic procedures for Ped cardiac defects
Chest Xray, ECG, Echo, TEE, Cath, Stress test, MRI
47
How to hook up leads
Right side- White side | Left side- black on top, red/green on bottom (smoke over fire)
48
What is cardiac cauterization?
Diagnostic procedure where radiopaque dye is injected via catheter in a vein and is guided by fluoroscopy into heart chamber
49
Medication for cardiac cath
digoxin q 12 hrs= check HR ACE inhibitors- --pril Diuretics- Lasix
50
What is Kawaski disease?
Inflammatory process that causes thickening and scarring of the vascular walls of coronary arteries
51
Acute stage of Kawaski disease
10-14 days- very sick with fever, conjunctivitis, strawberry tongue, hand edema tachycardia
52
Subacute stage of kawaski disease
15-25 days, fever gone, irritable, peeling, coronary aneurysms
53
Convalescent Stage of kawaski disease
26 days until ESR returns to normal and symptoms disappear- beaus lines on nails
54
Treatment of Kawaski Disease
Prevent coronary artery complications, IV immune globulin, antipyretics, aspirin therapy, corticosteroids, no live immunizations