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  • Title: Anterograde stent implantation for treatment of recurrent coarctation after Norwood operation.
    Author: Schaeffler R, Sarikouch S, Peuster M.
    Journal: Pediatr Cardiol; 2008 Mar; 29(2):388-92. PubMed ID: 18027011.
    Abstract:
    Although balloon angioplasty (BA) has become the standard therapy for recurrent aortic arch obstruction, pressure gradient relief is often not complete, with a high incidence of restenosis after BA. We report our experience with anterograde stent implantation for treatment of recurrent arch obstruction in patients with hypoplastic left heart syndrome after Norwood operation. Between March 2003 and January 2006, seven patients with the Norwood procedure required BA. The average weight was 6.3 kg (range, 4.4-9.8 kg). Four patients had undergone prior BA. For the purpose of relieving aortic arch obstruction, we used five Palmaz Genesis (PG) XD stents, and for palliative purposes we used one PG 124P stent and one Jostent, 6-12 mm. The average time after Norwood stage I was 177 days (range, 56-365 days). In six of seven patients the procedure was performed antegradely from the femoral vein. In all patients the procedure was effective. The peak systolic gradient fell from 29 mm Hg (range, 5-70 mm Hg) to 3 mm Hg (range, 0-10 mm Hg). There were no complications. No aneurysm, stent dislocation, or severe bleeding was observed. In two of seven patients three growth-related redilatations were performed. We conclude that implantation of stents at the site of recurrent coarctation after Norwood operation shows excellent gradient relief. To reduce the risk of vascular complications due to arterial access in this small group of patients, the procedure can be done safely anterogradely.
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