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According to the literature review, and as documented in a technical summary written by ew, vascular complications are a well-recognized complication of the transfemoral tvr procedure in this elderly population with multiple co-morbidities.Edwards has reviewed many reports, including screening data records and source documentation of vascular complications, and has found that the root cause is typically related to a combination of vessel size, tortuosity, and calcifications.Although the incidence is decreasing with smaller sheath/delivery system sizes and physician experience, there will continue to be cases in which vascular complications will occur.The training manuals instruct on procedural considerations for sheath insertion with regards to proper screening critical to reducing vascular complications.The training manual instructs the operator on proper sheath insertion and withdrawal techniques, including pre-dilating the vessel with the edwards dilators, as needed.It also notes that calcification may reduce lumen diameter and limit or prevent the transfemoral passage of the devices.The ifu contraindicates patients with ilio-femoral vessel characteristics that would preclude safe placement of sheaths such as severe obstructive calcification or severe tortuosity.Pre-procedure screening and assessment of the femoral/iliac artery internal diameters will enable the clinician to determine if the sapien valve (all models) can be delivered transfemorally.Assessment of location and amount of circumferential calcium will aid in determining areas of reduced vessel diameters.The operators are trained to measure minimum vessel diameter taking calcium into account.The training manual also lists the minimum recommended vessel size for each size device.Despite the best screening tools, a small percentage of patients will have femoral/iliac vessels that are not amenable to the trans-femoral approach or where increased resistance is encountered during insertion of devices.In many cases, the vessel minimum luminal diameter (mld) may be borderline or below the indicated size.In addition, significant calcification and/or tortuosity, not always appreciable on imaging, could be contributing factors to the event.The minimum required vessel diameter for an (14 fr sheath is 5.5 mm).In this case, there was no allegation or indication a product malfunction contributed to this adverse event.Investigation results suggest/indicate that procedural factors (sheath caught on to some calcium) caused or contributed to this event.A review of edwards lifesciences risk management documentation was performed for this case.The reported event is an anticipated risk of the transcatheter heart valve procedure, additional assessment of this adverse event is not required at this time.The ifu and training manuals have been reviewed and no inadequacies have been identified with regards to warnings, contraindications, and the directions/conditions for the successful use of the device.Complaint histories for all reported events are reviewed against trending control limits monthly, and any excursions above the control limits are assessed and documented as part of this monthly review.As such, neither a product risk assessment, nor corrective or preventative actions are required at this time.
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Per the field clinical specialist, during a transcatheter aortic valve replacement (tavr) procedure using a 26mm sapien 3 ultra resilia valve, the valve was successfully deployed.Upon removal of the 14fr esheath, a small dissection was noted in the common femoral artery.The implanters stented the vessel an moved the patient to standard recovery.The perceived root cause was thought to be the sheath caught on to some calcium, which caused the vessel to tear.There was no mention of an edwards product being deficient in any way as a result of this issue.Patient is currently stable and in recovery.
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