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PATHOPHYSIOLOGYOF
TRANSPOSITION OF THE ARTERIES (TGA)
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Systemic Circulation
Pulmonary Circulation
NORMAL CIRCULATION NORMAL CIRCULATION
Systemic Circulation
Pulmonary Circulation
Right Atrium
Right Ventricle
PULMONARY ARTERY
Pulmonary Vein
Left Atrium
Left Ventricle
AORTAVena Cava
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Systemic Circulation
TGA CIRCULATION TGA CIRCULATION
Pulmonary Circulation
Systemic Circulation
Pulmonary Circulation
Right Atrium
Right Ventricle
AORTA Pulmonary Vein
Left Atrium
Left Ventricle
PULMONARY ARTERYVena Cava
RV
LV
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TGA CIRCULATION
Systemic Circulation
Pulmonary Circulation
Right Atrium
Right Ventricle
AORTA Pulmonary Vein
Left Atrium
Left Ventricle
PULMONARY ARTERYVena Cava
INCOMPA
TIBLE
WIT
H LIF
E!!!
TWO SEPARATECIRCULATIONS
UNLESS…
INCOMPATIBLE
WITH LIFE!!!
HY
PO
XIA
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TGA CIRCULATION
Systemic Circulation
Pulmonary Circulation
Right Atrium
Right Ventricle
AORTA
Pulmonary Vein
Left Atrium
Left Ventricle
PULMONARY ARTERY
Vena Cava ATRIAL SEPTAL DEFECT
PATENT DUCTUS ARTERIOSIS
VENTRICULAR SEPTAL DEFECT
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PHYSIOLOGYBEHIND TRICUSPID
VALVE REGURGITATION
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HIG
H
PR
ES
SU
RE
LO
W
PR
ES
SU
RE
H
IGH
P
RE
SS
UR
E
L
OW
P
RE
SS
UR
E
NORMAL CIRCULATION
Systemic Circulation
Pulmonary Circulation
Right Atrium
Right Ventricle
PULMONARY ARTERY
Pulmonary Vein
Left Atrium
Left Ventricle
AORTAVena Cava
Systemic Circulation
Pulmonary Circulation
Right Atrium
Right Ventricle
AORTA Pulmonary Vein
Left Atrium
Left Ventricle
PULMONARY ARTERYVena Cava
Tricuspid Valve
Tricuspid Valve
TGA CIRCULATION