Left Axis Deviation in AV Canal Defect

Report:

Sinus rhythm 88/min

Left axis deviation –60o

Incomplete right bundle branch block

Comment:

Although morphologically indistinguishable from LAHB, the LAD in AV canal defects has different pathology. One should always suspect ostium primum ASD or other AV canal (endocardial cushion) defects (this girl had cleft mitral valve and a VSD repaired) in a young person with LAD.

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