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Ann Thorac Surg. 2005 Aug;80(2):726-9.

Mycotic aneurysm of the descending thoracic aorta in a 2-kg neonate.

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Division of Pediatric Cardiothoracic Surgery, Children's Hospital, University of California, San Francisco, California, USA.


Umbilical artery catheterization is often performed in critically ill neonates. Infection and thromboembolic events are relatively frequent complications, but aneurysm formation is rare. We describe the case of a premature baby who developed a rapidly expanding aneurysm of the descending thoracic aorta, secondary to a highly placed infected umbilical catheter. The rapid progression under medical therapy prompted us to replace the thoracic aorta with an 8-mm polytetrafluoroethylene graft, using extracorporeal circulation and core cooling. The baby had an excellent recovery and was discharged home after a prolonged antibiotic course. He is being followed with repeated imaging studies for a small abdominal aneurysm. We describe a novel approach to this rare and complicated problem and provide a review of the literature on the subject.

[Indexed for MEDLINE]

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