OBJECTIVE: To establish the risk of @entity2998 ( @entity2998 ) complications in @entity1 with @entity6127 . METHODS: In a prospective series of @entity1 submitted to @entity2998 , all cases with arch anomalies were compared with cases with normal arch anatomy (type I, II and III) in order to assess the impact of anatomic characteristics on technical and clinical outcome. Outcome was evaluated in term of @entity16 and technical success. RESULTS: Of 214 consecutive @entity1 undergoing @entity2998 , 189 (88.3%) had normal arch anatomy and 25 (11.7%) arch anomalies. The arch abnormalities included common origin of brachiocephalic trunk and left common carotid artery in 22 cases (10.2%), separate origin of right subclavian and common carotid in 2 cases (0.9%) and left common carotid agenesis with separate arch origin of internal and external carotid in 1 case (0.5%). The two groups were not different in term of epidemiology and preoperative clinical and morphological characteristics. Technical failure occurred overall in 26 cases (12%) and @entity16 in 14 cases (6.5%). All symptoms were temporary. Technical failure was higher in the arch anomaly group; however the difference did not reach statistical significance (89.6% vs 76.4%, P=0.1). @entity16 occurred more frequently in the arch anomaly group (20% vs 5.3%, P=0.039). Type of arch was the only variable independently associated with @entity16 (OR=2.01, p=0.026). CONCLUSION: @entity6127 are not infrequent and are associated with increased risk of @entity16 . The indication for @entity2998 should be carefully evaluated in these cases.

XXXX are associated with increased risk of neurological events in carotid stent procedures.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity16 :: ('MESH:D009422', 'Disease') :: ['Neurological complications', 'neurological complication', 'neurological complications'] @entity6127 :: ('MESH:D007569', 'Disease') :: ['Aortic arch anomalies', 'aortic arch anomalies'] @entity2998 :: ('MESH:D002340', 'Disease') :: ['CAS', 'carotid artery stent']
@entity6127 :: (MESH:D007569,Disease) :: ['Aortic arch anomalies']
