Congenital Heart Disease Flashcards
Congenital heart disease
This is a general term used to describe _______ of the _____ or ______ that are present from _____
abnormalities
heart or great vessels
birth
Congenital heart disease
• Usually arises from faulty embryogenesis during the ____ week of gestation (max ____ week)
3rd
5th
Congenital heart disease
few are associated with live birth
T/F
F
Most are associated with live birth
Congenital heart disease
some are not compartible with intrauterine survival
T/F
T
AETIOLOGY of congenital heart disease
•____% unknown
•__________ ,with genetic and environmental factors playing a part
• associated with chromosomal disorders such as ——— and ______ syndrome
90
Multifactorial
Downs and Turners
AETIOLOGY of congenital heart disease
• Infection such as _______
• Hypoxia
•__________
•_______ exposure to mother (especially between __-__ week)
Rubella
Thalidomide
Radiation
3-8
SHUNTS- These are __________ between the chambers or blood vessels;
• -left to right shunts
• -right to left shunts
abnormal communications
Initial left to right shunt
• - ____
• -_____
• __________________
• -APVD
• ______________ SYNDROME
• Right to left shunt
• -______
• -____
ASD; PDA
PERSISTENT TRUNCUS ARTERIOSUS (PTA)
HYPOPLASTIC LEFT HEART
TOF; TA
What congenital heart defect has the highest Relative Incidence
VSD
ATRIAL SEPTAL DEFECT
• ASD refers to an abnormal opening in ________ allowing communication of blood between the ________ and _______
atrial septum
right and left atrium
ATRIAL SEPTAL DEFECT is the same as a patent foramen ovale which occurs in about ___% of normal individuals
T/F
F
different from a patent foramen ovale
30
ATRIAL SEPTAL DEFECT
• There 3 main types ;
• - _______ type
• -_________ type ASD
• -___________ type
sceundum
primum
sinus venosus
ATRIAL SEPTAL DEFECT
• There 3 main types ;
• -sceundum type ,located _______
• -primum typeASD, _________
• -sinus venosus type, near the ———
highup
lowerdown
SA node
ATRIAL SEPTAL DEFECT: Secundum type ASD
•_____ % of all ASDs
• Results from defiency or fenestration of the ___________,__________, or _________
90
embryonic septum primum, deficiency of septum secundum or both
ATRIAL SEPTAL DEFECT: Secundum type ASD
• Aperture may be _____,_______, or_______
• Larger defect creates a ________
single, multiple or fenestrated
single atrial chamber
ATRIAL SEPTAL DEFECT: Primum type ASD
• ____% of all ASDs
• Occurs (low or high?) in the atrium
5
Low
ATRIAL SEPTAL DEFECT: Primum type ASD
• (Antero or Posterò?) -(inferior or superior ?) to the fossa ovalis and adjacent to the ________
Antero ; inferior
AV node
ATRIAL SEPTAL DEFECT: Primum type ASD
• associated with ___________ leaflet and can be associated with _______ defect
left anterior mitral
partial AV
ATRIAL SEPTAL DEFECT: Sinus venosus
•___% of all ASDs
• Located (low or high ?) in atrial septum, near _______ which may saddle it
5
High
entrance of SVC
ATRIAL SEPTAL DEFECT: Sinus venosus
• Associated with anomalous connections of ______________ to the right atrium
right pulmonary veins
ATRIAL SEPTAL DEFECT: Clinical features
•_____ to ______ shunt
• Initially (cyanotic or acyanotic?)
• Increased _______ blood flow
Left to right
Acyanotic
pulmonary
ATRIAL SEPTAL DEFECT: Clinical features
• Small ASDs are (poorly or well?) tolerated, (asymptomatic or symptomatic?)
•Large ASDs usually manifest around age ____
• _________ is a late consequence because the ________________________
Well; asymptomatic
30
Pulmonary hypertension
lungs cant tolerate increased blood flow
ATRIAL SEPTAL DEFECT: Clinical features
• When pulmonary hypertension occurs, it results in
• - _______
• -_______ difficulty
• -________ failure
•__________ is rare
•_________ embolus or _______ occurs when blood flow is reversed
cyanosis
respiratory
Cardiac
Infective endocarditis; Paradoxical
brain abscess
__________ is the most common congenital anomaly
VENTRICULAR SEPTAL DEFECT
VENTRICULAR SEPTAL DEFECT
It is associated with other anomalies
•_____% are isolated
• It may present at birth, later in life or in adulthood
30
VENTRICULAR SEPTAL DEFECT
• It may be
• - ________(___%),and (single or multiple?)
• - __________(____%)
muscular; 10; multiple
membranous;90
Ventricular septal defect
Functional severity depends on the _____ and presence or absence of _______
size
pulmonary stenosis
VENTRICULAR SEPTAL DEFECT: Small defects
• are ‘ ________ ’
•____% close spontaneously
• are (poorly or well?) tolerated
muscular
50
Well
VENTRICULAR SEPTAL DEFECT
•____________ and _________ are present from birth
• Small defects produce ________ and predisposition to ________
Right ventricular hypertrophy and pulmonary hypertension
jet streams
infective endocarditis
PATENT DUCTUS ARTERIOSUS
• This occurs when the normal _________ channels during intra-uterine life remains open after birth
aorto-pulmonary vascular
PATENT DUCTUS ARTERIOSUS
• Increased ______ after birth and changes in _____ contribute to the constriction and closing of the DA, normally
oxygen tension
Prostaglandin
PATENT DUCTUS ARTERIOSUS
• After birth, it may remain open, especially in ______ babies due to ________
•___-___% are isolated, others have ____
premature
low oxygen levels
85-90; VSD
PATENT DUCTUS ARTERIOSUS: Clinical presentation
• Presents with a _______(____) murmur
• (Acyanosis or Cyanosis?) initially
machinery (pan systolic)
Acyanosis
PATENT DUCTUS ARTERIOSUS: Clinical presentation
eventual Pulmonary hypertension with reversal of shunt , leading to:
•_______,________,______
•____________ failure
Cyanosis, finger clubbing, polycythaemia
Right ventricular
PATENT DUCTUS ARTERIOSUS • Clinical presentation
• Acyanotic heart disease is converted to cyanotic heart disease because ________________________ which ought not to be so.
the pulmonary tension is higher than the systemic tension
PATENT DUCTUS ARTERIOSUS • Clinical presentation
• Red blood cells are produced in increased amount because ______________ leading to polycythaemia
the body senses hypoxia
PATENT DUCTUS ARTERIOSUS • Clinical presentation
• Right ventricular ______ over time leads to ______ which causes heart failure
hypertrophy
dilation
ATRIOVENTRICULAR SEPTAL DEFECT
• Failure of fusion of the ___________________________ results in (complete or incomplete?) closure of the _______ and the inadequate formation of the ____________ and __________ leaflets
superior and inferior endocardial cushions
Incomplete ; AV septum
septal tricuspid and anterior mitral
ATRIOVENTRICULAR SEPTAL DEFECT
• The commonest abnormality is
• -_____ AV septal defects
• -_______ AV septal defect and a ________
partial
complete; large common AV valve