Key result
Surgical closure of an atrial septal defect can rarely cause iatrogenic diversion of the inferior vena cava to the left atrium if the eustachian valve is mistaken for the defect margin.
Highlights a rare surgical complication where the eustachian valve is mistaken for the ASD margin during closure of a sinus venosus ASD.
This rare pitfall warrants intraoperative vigilance during ASD repair to avoid cyanosis; case reports leave open true incidence and prevention strategies.
Iatrogenic diversion of the inferior vena cava (IVC) to the left atrium during surgical closure of an atrial septal defect (ASD) is a very rare complication in the era of cardiopulmonary bypass. The eustachian valve could be mistaken for the margin of the ASD. We report a case with this complication after closure of a sinus venosus ASD of the IVC type.
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Dalvi et al. (2012) studied this question. Surgical closure of an atrial septal defect can rarely cause iatrogenic diversion of the inferior vena cava to the left atrium if the eustachian valve is mistaken for the defect margin.
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