Per the field clinical specialist (fcs) report, 2 years after the implantation of a 29mm sapien 3 valve the patient had been re-admitted on 2 occasions due to heart failure and was found to have stenosis of the s3 valve.A 29mm s3 valve was placed without incidence.The patient has end-stage renal disease (esrd) on hemodialysis 3x/week.Was worked up for kidney replacement, reportedly not compliant with all medications (e.G.Phoslo and has heavily calcified vessels) and was rejected from an outside hospital for renal transplant secondary to calcifications.
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Per the instructions for use of the device, valve restenosis is a known potential risk associated with the overall tavr procedure.Per the valve academic research consortium (varc), valve stenosis can result from a number of factors, including pannus, calcification, support structure deformation (out-of-round configuration), trauma (cardio-pulmonary resuscitation, blunt chest trauma), endocarditis, prosthetic valve thrombosis, and native leaflet prolapse impeding prosthetic leaflet motion.The mechanisms for bioprosthetic heart valve tissue calcification are not fully understood.Many factors can contribute to the onset and propagation of calcification including patient related (e.G.Patient age, disease state, immune status, and other co-morbidities), pharmacological, and intrinsic properties of the valve itself.It is widely understood that patients with chronic renal disease and prior history of calcific stenosis of the native valve may be predisposed to bioprosthetic calcification.In this case the cause of aortic stenosis is unknown; however, it could be related to the patient¿s significant co-morbidities (end-stage renal disease on hemodialysis, patient non-compliant with medications).Complaint histories for all reported events are reviewed against trending control limits on a monthly basis, and any excursions above the control limits are assessed and documented as part of this monthly review.No corrective or preventative actions are required.
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