Cardiac dysfunction
S.SINDHIYA RAJAKUMARI MSC (N)
Atrial Septal defect
Ventricular septal defect
Patent ductus artriosus
Atrioventricular septal defect
 It consist of a low ASD that is continuous with a high VSD
and clefts of mitral and tricuspid values which create a
central AV value that allows blood flow between all four
chambers of the heart.
Pathophysiology
 The alternation in hemodynamics depends on the
severity of the defects and the childs pulmonary
vascular resistance.
 Pulmonary resistance is high there is minimum
shunting of blood through the defects.
 Once resistance falls LF to RT shunting occurs and
pulmonary blood flow increases
 Pulmonary vascular enlargement predispose the
child to development of CHF.
CM
 Moderate to severe CHF
 Systolic murmur
 Mild cyanosis increase in crying
Complication
 Heart block
 CHF
 Mitral regurgitation
 Dysrhythmias and PHT
Management
 Surgical repair of septal closure
Coarctation of Aorta
 Narrowing of aortic arch,usually in juxtaductal
position.
 Incidence:
Three times more frequently in males than in
females
Types
 Preductus coarctation of Aorta
Pathophysiology
 Due to coarcted part blood unables to enter
 Dilation of aorta
 Due to major 3 blood vessels
 Coarcted
 Decreased blood supply
C/M
 Diminished or absent femoral pulses
 Pulse lag in lower extremities
 Blood pressure is greater in upper extremities that in
lower extremities
 Poor feeding
 Poor weight gain
 pallor
Diagnostic evaluation
 ECG – Lf or RT ventricular hypertrophy
 Echo
 Chest xray
 BP –all four extremities may reveal discrepancies
Management
 End to End anastomosis
 Subclavian flap aortoplasty
 Patch aortoplasty
 Balloon aortoplasty
Aortic stenosis
Types
 Valvular stenosis
 Supravalvular
 Subvalvular obstruction
Pathophysiology
 Due to aortic stenosis
 LV not ejaculated the blood into the aorta,LV will filled
and overload
 LV hypertrophy
 LV filled and back flow of blood into the pulmonary
vein
 Pulmonary overload
 Pulmonary edema
CM
 Asymptomic in infancy
 Systolic ejection murmur at upper right sternal border
 Thrill on carotid arteries
 Systolic click at the apex of the heart
Diagnostic Evaluation
 Chest xray
 Echo
Management
 Balloon angioplasty
 Value replacement
 Aortic valvotomy
Pulmonary stenosis
Pathophysiology
 High pressure of RA
 opens foramen ovale
 shunting occurs
 Mixing of de O2 RT to LF atrium systemic circulation
 Mild cyanosi
CM
 Cyanosis
 Poor feeding
 Dyspnea
 Activity intolerance
 Poor weight gain
 Growth retardation
 Severe cyanosis ccf
Diagnostic evaluation
 Chest X ray
 Echo
Management
 Pulmonary valvotomy
 Balloon angioplasty
Cyanotic
 Decreased pulmonary flow Mixed blood flow
Tetrology of fallot Transposition of great arteries
Tricuspid atresia Total anamolous pulmonary
venous return
Truncus arteriosis
Hypopladtic left heart syndrome
Tetralogy of fallot
 Pulmonary stenosis
 Right ventricular hypertrophy
 Over riding of aorta
 Ventricular sepal defect
Clinical features
 Cyanosis
 Tachypenia
 Clubbing of fingers
 Dyspnea
 Pansystolic murmur
 Blue spells
 Squating position
Diagnostic evaluation
 ECG
 Chest x ray
 Echo
Management
 Medical management
Surgical
 BT shunt
 Waterson shunt
 Potts procedure
 Brocks procedure
Tricuspid atresia
 Tricuspid valve fails to develop and no communication
exists between the right atrium and right ventricle.
 INCIDENCE
2-3% of congenital heart disease
Pathophysiology
 Tricuspid valve fails to develop
 Right ventricle is hypoplastic and ASD or patent foramen ovale present
 VSD is common
 Pulmonary arteries may be small in size
 Inn presence of tricuspid atresia,unoxygenated blood returning to the RA
cannot pass into the RV.
C/F
 Harsh murmur if vsd is present
 Clubbing of fingers
 Poor feeding
 Activity intolerance
D/E
 Cardiac examination
 ECG
 Chest xray
 Echo
Management
 Medical mgt
PGE1
surgical mgt
BT shunt
Balloon atrial septostomy
Fontan procedure 4-5 yrs of age
Post op complication
 Renal failure
 CHF
 Residual VSD
 Conduit obstruction
 Dysrhythmias
 Infective endocarditis
Transposition of Great Arteries
Incidence
 More common in males than females
 Usually seen in term babies
Pathophysiology
C/F
 Cyanosis
 Hypoxic spells during crying or exertion
 clubbing
Diagnostic evaluation
 Cardiac examination
 ECG
 Chest xray
 ECHO
Management
 Prostaglandin infusion IV to keep ductus arteriosus
open.
 O2 therapy
 Surgical mgt:
Rashkind procedure
Balock hanlon procedure
Corrective surgery
Atrial switch procedure
Mustard procedure
Senning procedure
Total Anamolous Pulmonary Venous
Correctoion
Types
 Supracardiac
 Cardiac
 Infradiaphargmatic
Pathophysiology
C/F
 Cyanosis early in life
 Children with unobstructed TAPVC may be
asymptomatic until pulmonary vascular resistance
decrease during infancy,increasing pulmonary blood
flow with resulting signs of CHF.
Surgical treatment
Corrective repair is performed in early infancy surgical
approach varies with theanatomical defect.
Truncus Arteriosus
Classification
 Type I II III
 Type IV
Presentation
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