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W.L.Gore & associates, inc.(gore) is submitting this report to comply with 21 c.F.R.Part 803, the medical device reporting regulation.This report is based upon information obtained by gore, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Blank fields present on this report include required fields and fields determined to be not applicable.Blank required fields indicate that the information was not provided, was deemed unavailable or was not applicable.This report does not constitute an admission or a conclusion by fda, gore, or its associates that the device, gore or its associates caused or contributed to the event described in the report.In particular, this report does not constitute a legal admission by anyone that the product described in this report has any defects or has malfunctioned, as defined from a legal standpoint.These words are included in the report and are fixed items for selection created by the fda, to categorize the type of event solely for the purpose of reporting pursuant to part 803.This statement should be included with any information or report disclosed to the public under the freedom of information act.H6: code 213, no device problem found ¿ a review of manufacturing records verified that the lot involved in this event met all pre-release specifications.G3 / g4 date received by manufacturer: 22-jun-2022 ¿ this reflects the date that evaluations of provided imaging and information was completed in full.Imaging evaluation summary: ¿ four timepoints available for evaluation: pre-implantation ct (non-contrast), post-implantation cta¿s dated 3/26/2020, 3/29/2021, 4/19/2022.Four jpeg images attached in smartsolve.¿ 3d images appear to show distal migration of the implanted excluder® device.¿ proximal aortic diameters: 3/26/2020 23.2mm just distal to left renal 24.3mm 8mm distal to left renal 25.9mm 15mm distal to left renal 3/29/2021 23.9mm just distal to left renal 24.7mm 8mm distal to left renal 25.8mm 15mm distal to left renal 4/19/2022 26.9mm just distal to left renal 27.5mm 8mm distal to left renal 29.3mm 15mm distal to left renal ¿ the length from the left renal artery to the proximal tip of the implanted excluder® device appears to be ~2.5cm, by centerline.¿ the length from the left renal artery to the proximal circumferential excluder® device appears to be ~3.3cm, by centerline.¿ comparison axial imaging from all post-implantation timepoints appear to show: o there appears to be some thrombus along the posterior side of the aorta on all three timepoints at the level of the left renal artery.O the thrombus appears to be circumferential on most levels distal to the left renal artery on the 2022 imaging.O there appears to be thrombus within the trunk of the implanted device on the 4/19/2022 images.O there does not appear to be a significant change in the maximum diameters of the aneurysm comparatively.3/26/2020 ¿ 62.4mm x 71.6mm 3/29/2021 ¿ 61.6mm x 67.0mm 4/19/2022 ¿ 59.0mm x 68.1mm engineering evaluation sumnmary: · the device evaluation was performed based on what was reported to gore and images, including an imaging evaluation, attached to the event as the device was not returned for analysis.· the imaging evaluation concluded that the physician¿s observation that the endoprosthesis migrated distally appears to be confirmed.· the likely cause for the reported observation that the endoprosthesis migrated distally could not be determined with the available information.According to the gore® excluder® aaa endoprosthesis instructions for use (ifu), adverse events that may occur and/or require additional intraoperative procedure time or intervention include but are not limited to: endoprosthesis migration.Also, anatomical requirements within the ifu specify the following: for trunk-ipsilateral leg endoprosthesis and aortic extender endoprosthesis: proximal aortic neck angulation = 60° with minimal thrombus and / or calcification.
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