CHAPTER 5:2 (PART 2) Flashcards
What kind of Surgical Procedures for Heart Defect implies that the heart needs to be opened in order to repair the defect and therefore the “bypass” machine is used to oxygenate and circulate the blood without using the heart or lungs.
Open
-most common signs of CHF
*Respiratory distress signs
*Cough
*diaphoresis
Surgical Procedures for Heart Defect implies that the “heart lung machine” or “bypass” machine is not used and the heart is visualized but not cut open.
Closed
What are the 4 Non-obstructive lesions
- VSD (Ventricular septal defect)
- ASD (atrial septal defect)
- PDA (patent ductus arteriosus)
- Atrioventricular Canal (AVC) Defect
What Non-obstructive lesions is when there is Abnormal opening between R+ L auricies (Atrial allowing blood from higher pressure LA to flow into the lower pressure RA crossing the pulmonic valve
ASD (atrial septal defect)
What Non-obstructive lesions is when LA pressure exceeds the RA pressure causes increase flow of oxygenated blood into the R side of the heart Management
ASD (atrial septal defect)
What Non-obstructive lesions causes Overloading of the RVentricle → R. Ventricular Hypertrophy
ASD (atrial septal defect)
What Non-obstructive lesions remains unnoticed in infancy and childhood until pulmonary hypertension is included causing late cyanotic heart disease and right-sided heart failure?
ASD (atrial septal defect)
Isolated ASD comprises about how many percent of congenital heart diseases?
10%
Blood flows across the atrial septum (arrow) from left to right. The murmur is produced by increased flow velocity across the pulmonary valve, as a result of left-to-right shunting and a large stroke volume. The density of shading is proportional to velocity of blood flow.
ASD (atrial septal defect)
It is when During fetal heart devt, the partitioning process does not occur completely, leaving an opening in the atrial septum
ASD (atrial septal defect)
It allows oxygenated (red) blood to pass from the left atrium, through the opening in the septum, and then mix with unoxygenated (blue) blood in the right atrium
ASD (atrial septal defect)
What condition is when blood passes through the this, from the left atrium to the right atrium → a larger volume of blood than normal must be handled by the right side of the heart → extra blood then passes through the pulmonary artery into the lungs → pulmonary hypertension and pulmonary congestion
ASD (atrial septal defect)
What phenomenon is the occurrence of reversal of the pressure gradient across the ASD causes the shunt to reverse –> a right-to- left shunt will exist
Eisenmenger’s syndrome
TYPES of ASD (atrial septal defect):
- Fossa Ovalis type or Ostium Secundum type
- Ostium Primum type
- Sinus venosus type
What TYPE of ASD (atrial septal defect) is the most common form comprising about 90% cases of ASD. The defect is situated in the region of the fossa ovalis that, in utero, was the foramen ovale
Fossa Ovalis type or Ostium Secundum type
What TYPE of ASD (atrial septal defect) comprises about 5% cases of ASD. The defect lies low in the interatrial septum adjacent to atrioventricular valves. There may be cleft in the aortic leaflet of the mitral valve producing mitral insufficiency.
Ostium Primum type
What TYPE of ASD (atrial septal defect) accounts for about 5% cases of
ASD. The defect is located high in the interatrial
septum near the entry of the superior vena cava.
Sinus venosus type
What ACYANOTIC HEART DISEASE have complications like:
*Pulmonary hypertension
* Enlargement of the right side of the heart
*At a later stage, the pressure on the right side is higher than on the left side creating late cyanotic heart disease.
* Endocarditis
ASD (atrial septal defect)
Management for ASD (atrial septal defect) in which it helps strengthen the heart muscle, enabling it to pump more efficiently
digoxin
Management for ASD (atrial septal defect) in which it relieve pulmonary congestion
diuretics
Management for ASD (atrial septal defect) in which, such as prophylactic antibiotics to prevent bacterial endocarditis before dental procedures and other invasive procedures
infection control
Management for ASD (atrial septal defect) in which the patient is placed on cardiopulmonary bypass (the heart-lung machine), the right atrium is then opened to allow access to the atrial septum below - defect may be closed with stitches or a special patch.
surgical repair
What management for ASD (atrial septal defect) in which, For larger ASDs, a patch is usually used to close the hole. This patch can be taken from the pericardium (the sac that surrounds the heart) or from synthetic materials such as Dacron or Teflon.
Dacron Patch Closure