The previous medwatch report was submitted by william cook europe under manufacturer report reference# 3002808486-2020-00910.Additional information provided determined that this device was manufactured by cook inc.With the submission of this initial medwatch report, cook inc.Informs that all future submissions regarding this complaint will be handled under the manufacturer report reference number referenced in this initial medwatch report.Reporter occupation: non-healthcare professional.Investigation: the following allegations have been investigated: vena cava perforation, embedment, difficult to remove, tilt, chest/body pain.Investigation is reopened due to additional information provided.The reported allegations have been further investigated based on the information provided to date.Filter interacts with ivc wall, e.G.Penetration/perforation/embedment.This may be either symptomatic or asymptomatic.Potential causes may include improper deployment; and (or) excessive force or manipulations near an in-situ filter (e.G., a surgical or endovascular procedure in the vicinity of a filter).Potential adverse events that may occur include, but are not limited to, the following: trauma to adjacent structures, vascular trauma, vena cava perforation, vena cava penetration.Filter tilt has been reported.Potential causes may include filter placement in ivcs with diameters larger than those specified in these instructions for use; improper deployment; manipulations near an implanted filter (e.G., a surgical or endovascular procedure in the vicinity of a filter); and (or) a failed retrieval attempt.Excessive filter tilt may contribute to difficult or failed retrieval; vena cava wall penetration/perforation; and (or) result in loss of filter efficiency.Potential adverse events that may occur include, but are not limited to, the following: unacceptable filter tilt.Physician practice guidelines and published guidance from regulatory agencies recommend that patients with indwelling filters undergo routine follow-up.The risks/benefits of filter retrieval should be considered for each patient during follow-up.Once protection from pe is no longer necessary, filter retrieval should be considered.Filter retrieval should be attempted when feasible and clinically indicated.Filter retrieval is a patient-specific, clinically complex decision; the decision to remove a filter should be based on each patient¿s individual risk/benefit profile (e.G., a patient¿s continued need for protection from pe compared to their experience with and (or) ongoing risk of experiencing filter-related complications).For all retrievable ivc filters, retrieval becomes more challenging with time, and this is commonly due to encapsulation of the filter legs or hook (in a tilted filter) by tissue ingrowth.The filter is designed to be retrieved with the günther tulip vena cava filter retrieval set.It may also be retrieved with the cloversnare® vascular retriever.Cook has not performed testing to evaluate the safety or effectiveness of filter retrieval using other retrieval systems or techniques.The published clinical literature includes descriptions of alternative techniques for filter retrieval; use of these techniques varies according to physician experience, patient anatomy, and filter position.The safety or effectiveness of these alternative retrieval techniques has not been established.Specific for ¿embedded¿ a filter that is embedded in the wall of the ivc may be difficult to retrieve.For all retrievable ivc filters, retrieval becomes more challenging with time, and this is commonly due to encapsulation of the filter legs or hook (in a tilted filter) by tissue ingrowth.Unknown if the reported chest/body pain are directly related to the filter and unable to identify a corresponding failure mode at this point in time.A total of (b)(4) devices were manufactured in the reported lot.To date, no other complaints have been reported against the lot.The associated work order was reviewed.No related/relevant notes were documented.The device is manufactured and inspected according to controls.No evidence to suggest that this device was not manufactured according to specifications and nothing indicates that the filter did not perform as intended, e.G.Intended for the prevention of recurrent pulmonary embolism (pe) via placement in the vena cava.Cook will reopen its investigation if further information is received warranting supplementation in accordance with 21 c.F.R.803.56.This report includes information known at this time.A follow-up medwatch report will be submitted if additional relevant information becomes available.
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The patient received an implant on (b)(6) 2010 via the right internal jugular vein after being diagnosed with venous thrombosis(vt)/ pulmonary embolism (pe); followed by an unsuccessful percutaneous removal attempt (b)(6) 2010.The patient alleges tilt and vena cava perforation.The patient further alleges chest pain and body pain.(b)(6) 2010, per a report from retrieval report (attempted): "inferior vena cava is free of thrombus.Filter is seen in the infrarenal inferior vena cava.Sheath was upsized and multiple attempts were made to snare the filter but the hook is embedded in the right lateral/posterior wall".¿impression- unsuccessful attempt to remove this retrievable inferior vena cava filter.Filter will remain in place.¿ (b)(6) 2018, per a report from computed tomography; ¿findings: ivc filter is in place just below the renal vein level.The proximal tip of the filter has penetrated through the anterior wall of the ivc and just abuts the third portion of the duodenal loop.Penetration of a medial prong of the filter at 3:00, extending to abut the posterior aspect of the abdominal aorta.Penetration of a prong at 6:00 is also present extending through the posterior wall of the ivc and just abutting the l4 vertebral body.There is also penetration of a filter prong at 9:00 extending through the right lateral wall of the ivc.¿.
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