Problems encountered during and after stent-graft treatment of XXXX .

@entity1 @entity2806 @entity1070 @entity439 @entity1580
PURPOSE: The authors report their experiences with the problems encountered during and after stent-graft placement in @entity1 with @entity1580 . MATERIALS AND METHODS: Between July 1994 and December 2003, stent-graft placement was performed in 60 @entity1 with @entity1580 , 9 @entity1 with Stanford type A dissection and 51 @entity1 with type B. Ten @entity1 had acute dissection and 50 @entity1 had chronic dissection. Each @entity1 was followed for 12 to 107 months (mean, 33 mo). All cases were retrospectively reviewed for any problem that occurred during and after the procedure. RESULTS: During the procedure, there were two cases (3%) of stent-graft migration, one case (2%) of stent-graft torsion, two cases (3%) of stent-graft folding due to oversizing, three cases (5%) of persistent thoracic false lumen flow by the appearance of a hidden intimal tear, one case (2%) of new intimal tear that resulted in retrograde type A dissection, and 12 cases (20%) of type I endoleaks on aortograms taken immediately after the procedure. During the follow-up period, one case (2%) of transient @entity2806 , six cases (10%) of persistent type I endoleaks, two cases (3%) of @entity1070 through the intercostal artery, four cases (7%) with progressive dilatation of abdominal false lumen, six cases (10%) of new intimal tears which resulted in @entity439 (n=4) or new dissections (n=2) on either or both ends of the stent-graft, and two cases (3%) of mechanical failure were observed. Overall, five @entity1 (8%) required surgical conversion, and there were no cases of procedure-related mortality. CONCLUSION: Various problems can occur during and after stent-graft placement in @entity1580 . The thorough evaluation of preoperative imaging and close follow-up are mandatory to optimize the management of such problems.
