S2 L6.1 Congenital Heart Disease Part 1 Flashcards
Adult patient who have CHD fall under three types namely:
Mild, Undergone correction, uncorrected
When an adult patient who has CHD undergone correction, they either had it surgically corrected or underwent __
Percutaneous Intervention
Catherters into femoral artery or vein and that’s the way doctors introduce gadgets to take care of congenital defects
An adult who has CHD present with symptoms like:
- Heart chambers are big, increased
pressures inside the heart - Already beyond correction even with surgery
- Hemodynamic problems inside heart cannot be corrected
2 Most Common Cardiac Anomalies
- Congenital, functionally normal bicuspid aortic valve
- Prolapse of the mitral valve
Statement 1: The aortic valve has 2 leaflets
Statement 2: Congenital malformation will manifest a person to only have 3 leaflets in the aortic valve. This will lead to aortic stenosis
a. TF
b. FT
c. TT
d. FF
d. FF
- 3 Leaflets
- 2 Leaflets
Statement 1: With present advances in medicine, >85% of patients with CHD reach adulthood
Statement 2: Identified in infancy by the presence of heart murmurs, cyanosis, poor feeding, etc
a. TF
b. FT
c. TT
d. FF
c. TT
CHD common in Male or Female?
Ebstein anomaly of the tricuspid valve
Females
CHD common in Male or Female?
Aortic Valve Stenosis
Males
CHD common in Male or Female?
Coarctation of the Aorta
Males
CHD common in Male or Female?
Atrial Septal Defect (ASD)
Females
CHD common in Male or Female?
Pulmonary and Tricuspid Atresia
Males
CHD common in Male or Female?
Transposition of the Great Arteries (TGA)
Males
CHD common in Male or Female?
Patent Ductus Arteriosus
Females
CHD common in Male or Female?
Hypoplastic Left Heart
Males
Occur in about 25% of infants with significant cardiac disease where heart defect is really severe and is symptomatic at birth - infancy
Extracardiac Anomalies
Statement 1: The etiology of Extracardiac Anomalies is genetic or environmental
Statement 2: Under environmental, it can be caused by maternal rubella and ingestion of thalidomide and isotentinoin
a. TF
b. FT
c. TT
d. FF
c. TT
This condition has these manifestations:
Deafness
Microcephaly
Congenital Cataracts
Rubella Syndrome
Statement 1: Had measles during pregnancy in the second trimester
Statement 2: Can develop multiple heart defects like Persistent Ductus Arteriosus (PDA), pulmonary valve and/or arterial stenosis, and ASD
a. TF
b. FT
c. TT
d. FF
b. FT
1: First trimester
Associated with major limb deformities and, occasionally, with cardiac malformations without a predilection for a specific lesion.
Thalodomide Exposure
Associated with ingestion of lithium during pregnancy (anti-psychotic drug)
Tricuspid Valve Anomalies
For mothers who drink alcohol during pregnancy, thic condition can arise.
Prenatal growth retardation
Developmental delay can be expected d/t growth retardation
Fetal Alcohol Syndrome
Other vein in the human body that carries oxygenated blood
Umbilical vein
the source of food of the fetus whle it’s still inside the womb
Placenta
Located in the interatrial septum: it is an opening where blood from the right atrium would go directly to left atrium
Foramen Ovale
Fetal Circulation
Another opening is the shortcut or duct that allows blood going from the pulmonary artery to the left side of the heart specifically the aorta
Ductus arteriosus
Classification
Determined by the chambers of the heart with more pressure
Shunting
Statement 1: It is called shunt because blood with flow from one
chamber to another
Statement 2: if more volume goes (accumulates) to the right side of the heart, the pressure on the right becomes higher compared to the left. Shunt reverses going from the usual right to the left.
a. TF
b. FT
c. TT
d. FF
c. TT
Classification
Determines the location of the defect (Location of the defect would determine the hemodynamic effects/consequences)
Right-sided vs. Left-sided
○ Less blood goes into the lungs for oxygenation
○ There is a problem with the conduits, leading used blood to the lungs for oxygenation purposes
Cyanotic vs. Acyanotic
Presence of cyanosis tells us the possibilities like:
■ Tetralogy of fallot
■ Pulmonary atresia
Conditions under Without Shunt Right-sided
○ Pulmonary Stenosis
○ Ebstein Anomaly
Conditions under Without Shunt Left-sided
○ Coarctation of the Aorta
Conditions under With Shunt Acyanotic
○ Atrial Septal Defect (ASD)
○ Patent Ductus Arteriosus (PDA)
○ Ventricular Septal Defect (VSD)
Conditions under With Shunt Cyanotic
○ Tetralogy of Fallot (TOF)
○ Eisenmenger Syndrome
○ Transposition of Great Arteries
○ Ebstein Malformation
○ Truncus Arteriosus
○ Tricuspid Atresia
■ When shunt is reversed; pressure reverses
■ Expect less oxygenation leading to cyanosis
Eisenmenger Syndrome
Which Congenital Heart Defect has the highest incidence?
Ventricular septal defect (VSD) (28.3)
Complications of Congenital Heart Disease (4)
Congestive Heart Failure
Hypoxemia
Growth retardation
Pulmonary vascular disease
(8) Squelae of Hypoxemia
- Cyanosis
- Clubbing
- Polycythemia
- Squatting
- Exercise Intolerance
- Hypoxic Spells
- Brain abscess
- Cerebrovascular accident
SEQUELAE OF HYPOXEMIA: spooning, sign of extreme hypoxia in pulmonary physical examination
Clubbing
SQUELAE OF HYPOXEMIA: If infant has chronic hypoxemia adaptive mechanism of body is to produce more erythrocytes
Polycythemia
SQUELAE OF HYPOXEMIA: Laro nang laro then pt may faint or exp shortness of breath
Hypoxic spells
CHD where the Pulmonary trunk is narrow or even atretic (did not develop at all)
Pulmonary Stenosis
This form the only outlet for blood from the right side of the heart
Patent Foramen Ovale
This is the only access route
to the pulmonary circulation
Patent Ductus Arteriosus
Statement 1: Thanks to the PDA, blood from the aorta can enter the pulmonary system through this conduit
Statement 2: Without the PDA and PFO, used blood can never reach the lungs for oxygenation
a. TF
b. FT
c. TT
d. FF
c. TT
Statement 1: Pulmonary Stenosis often coexists with ASD, VSD, PDA, TOF
Statement 2: It is also the third most common form of CHD in adult
a. TF
b. FT
c. TT
d. FF
a. TF
2: Second
This CHD is a downward displacement of the tricuspid valve into the right ventricle (Results in tricuspid regurgitation)
Ebstein Anomaly
In ebstein anomaly, the right ventricle is ___ which leads to pump failure
Hypoplastic
Increase in volume and
pressure on the right side causing shunt reversal
Eisenmengerization
Patients with severe Ebstein anomaly will have __ and __
Dyspnea and exercise tolerance
■ Heart has extra conducting systems
■ May promote by-pass tracts(abnormal) to produce arrhythmias
■ Can be deadly
Wolff-Parkinson-White Syndrome
Aortic lumen below the origin of the left subclavian artery is significantly narrowed
Coarctation of the Aorta
Narrowing of the aorta at the:
- Descending aorta (more common)
- Aortic Arch
2 Types of Coarctation of the Aorta
○ Preductal - PDA persists
○ Post-ductal - more common
Statement 1: ↑SBP and ↑DBP below the coarctation
Statement 2: ↓SBP and sl. ↓DBP above the coarctation
a. TF
b. FT
c. TT
d. FF
d. FF
- Above
- Below
○ D/t increased risk of harboring bacteria
○ Infection of the endocardium or myocardium
Risk of infective endocarditis
Mortality without surgical correction:
○ __ by 30 years of age
○ __ by 60 years of age
○ 50% by 30 years of age
○ 90% by 60 years of age
Large opening between LA and RA
○ Foramen ovale remains patent (PFO) after birth
Atrial Septal Defect
Causes of Atrial Septal Defect
- Excessive cell death and resorption of the septum primum
- Inadequate development of septum secundum
○ Occurs high in the atrial septum near the entry of the superior vena cava into the right atrium
○ Depends on anatomic placement
Sinus Venosus
Lie adjacent to the atrioventricular valves common in Down’s syndrome
Depends on anatomic placement
Ostium Primum
Most common
Involves the fossa ovalis
Midseptal in location
Ostium Secundum
Beyond 4th decade, it will manifest:
- Atrial Arrhythmias
- Pulmonary Arterial Hypertension
- Bidirectional and then right-to-left shunting of blood
- Cardiac Failure