Clinical neurology and neurosurgery citation: effect of aneurysm morphologic parameters on occlusion rates following pipeline embolization.Yiping lia, jason kimb, azam ahmeda et.Al.(https://doi.Org/10.1016/j.Clineuro.2019.105395).The pipeline flex device will not be returned for evaluation; therefore, product analysis cannot be performed.The device was not returned; therefore, the reported event could not be confirmed.The cause of the event cannot be conclusively determined from the provided information.If information is provided in the future, a supplemental report will be issued.
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The purpose of this study is to identify morphological characteristics predictive of treatment failure after ped.Medtronic received information through literature regarding patients who underwent ped placement with at least 12 months follow-up using conventional cerebral angiography were included for further review.During the study period 84 patients who underwent placement of peds to treat unruptured intracranial aneurysms met inclusion criteria and had at least 12 months follow-up with conventional cerebral angiography.Ten patients (11.9%) experienced treatment failure defined by retained flow within the aneurysm at 12 months follow-up and eight patients required additional retreatment (9.5%) consisting of placement of one or two additional peds.Of these eight cases, residual was total in one and subtotal in 7 cases.Of those who failed ped stand-alone therapy, three patients (37.5%) continued to be refractory to flow diversion therapy despite retreatment with an median follow-up of 1104 days compared to the 606 days of the nominal group.One patient continued to demonstrate subtotal filling and two patients demonstrated entry remnant filling at last follow-up.
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