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TAPVRTotal Anomalous Pulmonary Venous Return
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Echocardiography is an excellent diagnostic modality, but challenges may be seen in cases with mixed or infracardiac variety, identification of obstruction and in TAPVR associated with heterotaxy syndrome or right atrial isomerism.6-8 In neonates with respiratory distress, especially those on high-frequency oscillation mode of ventilation, poor acoustic windows, spatial resolution and the subjective interpretation of the operator are additional factors limiting accurate echocardiographic diagnosis.
The objective of this study was to evaluate the accuracy of echocardiography in the diagnosis of TAPVR (isolated or associated with other structural heart defects) when compared to the diagnosis made by cardiac CT angiography or during surgery and to determine diagnostic errors responsible for any differences observed.
Our patient demonstrated radiographic features of TAPVR (the snowman sign) and of NAI.
TAPVR is a rare congenital cardiac defect that may present with cyanosis, cardiac failure and failure to thrive in infancy.
TAPVR type 1 has a typical radiographic appearance of the heart termed the snowman.
Total anomalous pulmonary venous drainage (TAPVR) is a rare condition and makes 1-2% of all congenital heart lesions4.
Although interrupted IVC is characteristic of LAI and bilateral Superior vena cava (SVC) along with partial anomalous venous drainage (PAPVR) is common in these patients, incidence of TAPVR is rare.
One was a case of TAPVR. The other case was normal postnatally.