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Congenital Heart Defects Pediatrics
CSM Nursing Pediatric Congenital Heart Defects
101
Nursing
Undergraduate 3
02/07/2016

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Cards

Term
CV Observation/Inspection Assessment Areas
Definition
1. Color
2. Mucous Membranes
3. Precordium
4. Edema
Term
What happens to fetal circulation after birth?
Definition
1. Systemic vascular resistance increases
2. Foramen ovale closes
3. Ductus arterious constricts-closes within 10 to 15 hours of birth
4. Left ventricle enlarges due to increased pressure
Term
Why is an newborn heart rate so high?
Definition
High metabolic demands
Term
Does blood pressure increase or decrease as the heart develops from birth?
Definition
Increases
Term
What does pulse oximetry measure?
Definition
The amount of oxygen available for tissue delivery
Term
What is polycythemia?
Definition
An abnormally increased concentration of hemoglobin in the blood, through either reduction of plasma volume or increase in red cell numbers.
Term
What is the body's response to chronic hypoxia?
Definition
Polycythemia
Term
What is a major risk of polycythemia?
Definition
Dehydration turns the blood thick, like mud. This puts the patient at risk for a stroke
Term
How do you calculate cardiac output?
Definition
Heart Rate x Stroke Volume
Term
What are 5 situations that can lead to CHF in children?
Definition
1. Cardiac output cannot keep up with circulatory or metabolic demands
2. Congenital heart defects
3. Decreased heart contractility
4. Disease processes that require high cardiac output
5. Acquired diseases
Term
What are disease processes that require high cardiac output?
Definition
1. Severe anemia
2. Acidosis
3. Respiratory disease
Term
What are several risk factors for cardiac dysfunction in a child?
Definition
1. Alcohol/drugs
2. diabetes
3. infection early in pregnancy
4. Toxins
5. Family history
6. Trisomy 21, 13, 18
Term
What are examples of acquired diseases that result in child CHF?
Definition
1. Cardiomyopathy
2. Kawasaki disease
Term
What happens when there is a volume overload on the heart due to increased pulmonary circulation?
Definition
The is back flow from the right ventricle to the right atrium that results in peripheral edema
Right sided CHF
Term
What happens and obstruction defect, such as a dysfunctional right valve?
Definition
Left sided CHF that results in pulmonary edema
Term
What are early signs of CHF in infants?
Definition
1. Tiring during feeding
2. Weight loss (or lack of weight gain)
Term
What are early signs of CHF in children?
Definition
1. Exercise intolerance
2. Dyspnea
3. abdominal pain
4. Periorbital & sacral edema before any other edema
5. peripheral edema
Term
What are late signs of CHF in children?
Definition
1. Respiratory symptoms: tachypnea, nasal flaring, retractions, cough, crackles
2. Tachycardia
3. Generalized fluid overload
4. Cardiomegaly
Term
What are 4 diagnostic tests that measure cardiac function?
Definition
1. Radiography
2. EKG
3. Echocardiography
4. Cardiac catheterzation
Term
What is cardiac catheterization?
Definition
It is a catheter guided with fluoroscopy dye injected for visualization and blood pressures measured
Term
How can you determine cyanosis is cardiac related?
Definition
If you give the patient oxygen at he remains blue it is of cardiac in origin
Term
What can cardiac catheterization be used for?
Definition
1. Diagnosis
2. Intervention
3. Electrophysiology
Term
What is one risk associated to cardiac catheterization?
Definition
Hemorrhage from a blood clot
Term
What are reasons for cancellation of a cardiac catheterization?
Definition
Infection with a fever, rashes, arrhythmias
Term
What are possible nursing care tasks for a patient receiving a cardiac catheterization?
Definition
NPO, mark site with an X , keep the leg straight, keep a clean pressure dressing on the site, check pulses, vitals every 15 minutes for the first 4 hours following the procedure
Term
What education should be given by the nurse to a patient receiving a cardiac catheterization?
Definition
1. Normal activity within 24 hours
2. Call the physician if there is any drainage
3. Call the physician if there is a color change in the leg
4. Call the physician if there
Term
What are 4 heart defects that increase pulmonary blood flow?
Definition
Patent ductus arteriosus (PDA), atrial septal defect (ASD), Ventricular septal defect (VSD), atrioventricular can defect (AV canal)
Term
If left untreated what can pulmonary over circulation lead to?
Definition
1. CHF
2. Pulmonary HTN
3. Death
Term
How can you describe PDA circulation?
Definition
Persistent fetal circulation
Term
What infant characteristic is common with PDA?
Definition
They are preterm
Term
How can PDA be treated?
Definition
Closed with:
1. medication
2. Devices ie coil embolization
3. Surgery
Term
How can you describe ASD?
Definition
A very common heart defect (15% of child heart defects) that has an opening (large or small) in the atrial septum that permits left to right shunting of blood
Term
How can a closure be attained for an ASD?
Definition
1. It can close spontaneously
2. Devices that open like an umbrella can be inserted via cardiac catheter, and cause clotting
3.Surgery uses the pericardium to patch the opening
Term
What are the three types of ASDs?
Definition
1. Ostium secudum: an opening in the center which is easily fixed
2. Ostium primum and opening by the AV node or valves which is a more serious defect
3. Sinus Vinosous an opening near the superior vena cava
Term
How can you describe a VSD?
Definition
The most common child heart defect (25% of all child heart defects) is an opening in the ventricular septum that permits left-to-right shunting of blood.
Term
How can a closure be attained for a VSD?
Definition
1. Spontaneously
2. Surgery
Term
What is a major risk from VSD?
Definition
1. CHF
2. Endocarditis
Term
What is the prognosis of a child with a VSD?
Definition
High risk if repair is needed in first few weeks of life
Term
What is a sign of an VSD that can be found during assessment?
Definition
Sternal border murmur
Term
What is an AV canal?
Definition
ASD + VSD + tricuspid & mitral valve defects
Term
What group of children is at risk for an AV canal?
Definition
Down syndrome children
Term
How is an AV canal repaired?
Definition
Surgery:
1. Close the ventricle wall first
2. Cannot use artificial valves because the child is growing
Term
What is the prognosis for a child with AV canal?
Definition
Mitral valve insufficiency and arrhythmias are common
Term
What is the TOF?
Definition
Four defects: PS, Ventricular hypertrophy, VSD, Overriding aorta that increases in pressure on the right side of the heart and causes right to left shunting
Term
What are signs of TOF?
Definition
1. During the play the child suddenly stops and squats to promote blood flow back to the heart
2. Cyanotic (Tet) spells
Term
How is TOF treated?
Definition
Shunt is created from subclavian artery to the lungs. Then VSD is treated patched. As the child grows the other defects are treated.
Term
What is the prognosis of a child with TOF?
Definition
Mortality is less than 3%. The child may have right ventricular dysfunction.
Term
How can you treat TOF immediately?
Definition
Give oxygen and have the patient bend there knees
Term
What are 3 mixed heart defects in children?
Definition
1. Transposition of the great arteries (TGA)
2. Truncus Arterious
3. Total anomalous pulmonary venous return (TAPVR)
Term
What is an infant with mixed heart defects dependent on?
Definition
The mixing of systemic and pulmonary blood
Term
What is TGA?
Definition
Parallel circulation of the heart that is life threatening
Term
How does mixing of blood occur in a patient with PGA?
Definition
Via PDA, patent foramen ovale (PFO), ASD, or VSD
Term
What diagnostic tool is used to identify TGA?
Definition
Ultrasound
Term
How is a TGA corrected?
Definition
1. Prostaglandins E1 are given to maintain PDA
2. Balloon arterial septostomy is used to enlarge PFO (create ASD)
3. Surgical repair, usually within the first week (Jeteen switch
Term
What is the prognosis for TGA patients?
Definition
Less than 2% mortality; the 5 year survival rate is 82%. Pulmonary & aortic stenosis, coronary artery obstruction may occur
Term
What is Truncus Aterious?
Definition
An uncommon heart defect where a single large vessel empties into both vesicles instead of the normal two vessels (pulmonary trunk & aorta)
Term
What is the TOF?
Definition
Four defects: PS, Ventricular hypertrophy, VSD, Overriding aorta that increases in pressure on the right side of the heart and causes right to left shunting
Term
What are signs of TOF?
Definition
1. During the play the child suddenly stops and squats to promote blood flow back to the heart
2. Cyanotic (Tet) spells
Term
How is TOF treated?
Definition
Shunt is created from subclavian artery to the lungs. Then VSD is treated patched. As the child grows the other defects are treated.
Term
What is the prognosis of a child with TOF?
Definition
Mortality is less than 3%. The child may have right ventricular dysfunction.
Term
How can you treat TOF immediately?
Definition
Give oxygen and have the patient bend there knees
Term
What are 3 mixed heart defects in children?
Definition
1. Transposition of the great arteries (TGA)
2. Truncus Arterious
3. Total anomalous pulmonary venous return (TAPVR)
Term
What is an infant with mixed heart defects dependent on?
Definition
The mixing of systemic and pulmonary blood
Term
What is TGA?
Definition
Parallel circulation of the heart that is life threatening
Term
How does mixing of blood occur in a patient with PGA?
Definition
Via PDA, patent foramen ovale (PFO), ASD, or VSD
Term
What diagnostic tool is used to identify TGA?
Definition
Ultrasound
Term
How is a TGA corrected?
Definition
1. Prostaglandins E1 are given to maintain PDA
2. Balloon arterial septostomy is used to enlarge PFO (create ASD)
3. Surgical repair, usually within the first week (Jeteen switch
Term
What is the prognosis for TGA patients?
Definition
Less than 2% mortality; the 5 year survival rate is 82%. Pulmonary & aortic stenosis, coronary artery obstruction may occur
Term
What is Truncus Aterious?
Definition
An uncommon heart defect where a single large vessel empties into both vesicles instead of the normal two vessels (pulmonary trunk & aorta)
Term
What may result from truncus arteriosus?
Definition
1. Cardiomegaly
2. Right sided CHF
Term
What is TAPVR?
Definition
A rare heart condition where pulmonary veins empty into the right atrium instead of the left atrium
Term
How is mi
Definition
Term
How is truncus arterious treated?
Definition
Surgical
Term
What is the prognosis for truncus arteriosus?
Definition
Improving but long term is unknown
Term
How is blood mixed in a patient with TAPVR?
Definition
The foramen ovale allows oxygenated blood to move from the right atrium to the left atrium
Term
How is TAPVR repaired?
Definition
1. Prostaglandin E1 is used to to maintain PDA to allow more mixed blood
2. Balloon atrial sepstomy is use to enlarge PFO into and ASD
3. If pulmonary veins have an adequate diameter they can be surgically attached to the left atrium
Term
What is type I TAPVR?
Definition
The most common where pulmonary veins go into the superior vena cava
Term
What is type II TAPVR?
Definition
Pulmonary veins go directly to the right atrium
Term
What is type III TAPVR?
Definition
Pulmonary veins form a common pulmonary vein that descends below the diaphragm that goes into the ductus venosus or the portal vein so blood goes to the liver before is returns to the right atrium
Term
What is type IV TAPVR?
Definition
Some of the pulmonary veins join the system at one place and the other pulmonary veins at a second place randomly
Term
What is a complication with pulmonary veins that can occur in TAPVR patients?
Definition
The diameter size can be small and cause pulmonary hypertension
Term
Prognosis of patients with TAPVR?
Definition
Generally good as long as they have adequate diameter pulmonary veins.
Term
What are signs of TAPVR?
Definition
Crying and exercise causes increase in cyanosis
1/2 are cyanotic during the first month of life.
2/3 develop CHF by 3 months
90% have CHF by 1 year
Term
What are 3 heart defects that obstruct systemic blood flow?
Definition
1. Aortic stenosis
2. Coarction of the aorota
3. hypoplastic left heart syndrome
Term
What are the effects of defects that obstruct systemic blood flow?
Definition
Increase workload on one or both ventricles of the heart, leading to CHF if untreated
Term
What is aortic stenosis?
Definition
A narrowed aortic valve that obstructs blood flow. AS is very deadly
Term
How is AS treated?
Definition
1. The valve is dilated with a balloon
2. The valve is replaced or a surgical valvuloplasty is performed
Term
What is the prognosis for patients with AS?
Definition
The child may need repeated valve replacements or dilations as they grow. Sudden death may occur.
Term
What is a coarctation of the aorta?
Definition
A common defect where the aorta narrows, usually near the ductus, obstructing blood flow
Term
What does atresia mean?
Definition
a condition in which an orifice or passage in the body is abnormally closed or absent.
Term
What are signs of COA?
Definition
1. Blood pressure is higher in arms than legs
2. Weak femoral pulses
3. HTN IV treatment does not bring down the blood pressure
Term
How is COA repaired?
Definition
1. Balloon dilation
2. Surgical repair
Term
What is the prognosis for COA?
Definition
Persistent Hypertension is common aorta is common
Aorta can stenosis at the surgical site
Term
What is HLHS?
Definition
A very severe heart defect where the mitral and aortic are abnormally small because they fail to develop in utero. It is more common in males. 80% also have coarctation of the aorta. 95% die by week one.
Term
How is HLHS treated?
Definition
1. The ductus arteriosus and foramen ovale are kept open with prostaglandin E1
2. Comfort care is given
3. 3 stage surgery
4. Heart transplant
Term
Signs of HLHS
Definition
1. heptomegaly
2. CHF
Term
What are the different stages/surgeries involved in treating HLHS?
Definition
1. Norwood (immediately also highest mortality, 5 year survival rate is 50-70%)
2. Glen (3-8 mos)
3. Fontan (18 months)
Term
What are nursing considerations for HLHS patients?
Definition
1. Keep patient on dry side
2. Keep patient polycythemic (HCT 45%) to ensure enough oxygen is distributed throughout the tissues. O2 saturations will be around 80-85%.
3. Be cautious not to overload the right side of the heart because it will give up
Term
HLHS prognosis?
Definition
Without surgery the patient is dead within days.
Term
What is the issue with heart transplants for infants?
Definition
1. There are not many hearts available for that age.
2. Immunosuppressants must be used
3. Hearts last for 10-15 years
4. 63% of infants waiting for donor hearts die
Term
What is the prognosis for HLHS?
Definition
Long term survival rate is not known.
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