Objectives: We report comprehensive clinical, echocardiographic and prospective computerised tomography (CT) follow-up data following stenting for aortic coarctation from a single centre.
Background: Stenting for aortic coarctation is known to be effective in the medium term. Aneurysm formation following stent implantation is a recognized complication. However, data regarding aortic wall injury and stent integrity following stent placement are sparse.
Methods: Full data analysis of all patients undergoing balloon expandable stent implantation and follow up procedures in a single tertiary congenital cardiac unit.
Results: Between October 2002 and April 2008, we performed 102 coarctation stent procedures ( 94 stents, 88 patients) . Median age was 20.6 years (range 8.5-65) and median weight 65Kgs (range 34-101). Twelve procedures were re-dilatations. Stenting resulted in reduction of coarctation gradient from a median of 20 to 4mm Hg. There were no procedure related deaths. Four patients had immediate complications During median follow-up of 34.5 months (range 4.2-72.8), 2 patients had late complications requiring additional stent procedures. Follow-up CT data are available in 84 patients with MRI in one patient (96.5%). Only 1 patient developed a procedure related aortic aneurysm. All stent fractures (n=7) occurred with a single stent design.
Conclusions: Stenting for aortic coarctation and recoarctation is effective with low immediate complication rates. Computerized tomography is useful in the longer term for assessment of stent integrity and post-procedural aneurysm formation. Overall incidence of post-procedural aneurysm is rare and stent fractures were not seen with newer generation stents.
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