This additional information received on 09feb2018 as follows: pt allegedly received an implant on (b)(6) 2007 via the right common femoral vein to prevent blood clots after a car accident.Pt is alleging vena cava perforation, device is unable to be retrieved, organ perforation - small bowel and clogged filter.Additionally pt.Alleges chest pain, anxiety, deep vein thrombosis after filter placement and pulmonary emboli after filter placement.There are no filter retrieval attempts.
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Additional information: investigation:investigation is reopened due to additional information provided.It has not been possible to further investigate or evaluate this alleged event based on the limited information provided to date via the operative note stating 'tulip - vc and organ perf, unable to be retrieved, filter clogged (occlusion), pain, anxiety, dvt, pe'.Cook will reopen its investigation if further information is received warranting supplementation in accordance with 21 c.F.R.803.56.Vena cava wall perforation is a known potential complication of vena cava filters.Both symptomatic and asymptomatic events have been reported.Among other causes, vena cava wall perforation may inadvertently be initiated by improper deployment, excessive force or manipulations near an implanted filter (e.G., a surgical procedure in the vicinity of a filter) and (or) procedures that involve other devices being passed through an in situ filter.There is a current debate in the published scientific literature on a differentiation between ivc wall perforation with and without clinical sequelae.E.G.Filter legs may be outside the contrast lumen on imaging without actually perforating the ivc wall (known as tenting) and with no clinical sequelae.In contrast, perforation of adjacent organs is reported with clinical sequelae.Filter retrieval is occasionally difficult.This is well-known from published scientific literature where filter retrievals are referred to as simple vs.Complex.Several case reports published in scientific literature describe complex cases with successful endovascular filter retrievals using additional, advanced techniques.Ivc thrombotic occlusion as an outcome for cook ivc filters is addressed in the published scientific literature.Ivc thrombotic occlusion is defined as the presence of an occluding thrombus in the ivc after filter insertion and documented by ultrasound (us), ct, mr imaging or venography; this may be symptomatic or asymptomatic.Pe is a known risk in relation to filter implant reported in the published scientific literature.Also, it is reported that the pulmonary embolism in some cases may originate from upper extremities instead of lower extremity veins.With all filters, there is some risk of further pulmonary embolism.Unknown if the reported anxiety is directly related to the filter and unable to identify corresponding failure mode(s) at this time.Unknown if the reported peripheral vein thrombosis is directly related to the filter and unable to identify a corresponding failure mode at this time.No relevant notes on work order.No other complaints on lot.Product is manufactured and inspected according to specifications.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.
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