Histopathological follow-up after bailout stenting for early postoperative stenosis of a central aorto-pulmonary shunt.
We treated a neonate with pulmonary atresia and a ventricular septal defect complicated by straddling of the atrioventricular valves by constructing a central aorto-pulmonary shunt. The postoperative course was complicated by obstruction of the shunt, which was treated by implantation of a coronary stent. Six months after the stenting, a Glenn anastomosis was created and the stented shunt removed. Analysis showed that the shunt was completely covered by a vascularized neointima. The stent had not produced injury to the shunt, with struts of the stent covered nicely by neoendothelium, with sparse inflammation surrounding the artificial implants.
Peuster
Matthias
M
Department of Pediatric Cardiology and Pediatric Intensive Care, Georg-August University, Goettingen, Germany. mpeuster@hdz-nrw.de
Wohlsein
Peter
P
von Schnakenburg
Christian
C
D001024:Aortic Valve Stenosis / Q000209:etiology / Q000473:pathology / Q000601:surgery; D005500:Follow-Up Studies; D018610:Heart Bypass, Right / Q000009:adverse effects*; D006801:Humans; D007231:Infant, Newborn; D007249:Inflammation / Q000209:etiology; D011666:Pulmonary Valve Stenosis / Q000209:etiology / Q000473:pathology / Q000601:surgery*; D012086:Reoperation; D015607:Stents / Q000009:adverse effects