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During a transcatheter aortic valve replacement (tavr) procedure using a 20 mm sapien 3 ultra resilia valve, initial valve alignment was achieved but required a reset and a second attempt after reaching the limit of fine adjustment.Following successful realignment, the device was advanced across the arch and positioned within the annulus.During deployment, the balloon on the aortic side inflated first, while inflation on the left ventricular side was minimal.The interventional cardiologist was instructed to accelerate balloon inflation, resulting in full valve expansion and seating at 100/0.No paravalvular leak was observed, and the balloon was removed without complications.The device was discarded at the hospital.
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Correction to h6; component code, type of investigation, investigation findings, and investigation conclusion.The event reported is anticipated in the risk management documentation for transcatheter heart valve procedures.Additional assessment of the failure mode(s) is not required at this time.Due to the unavailability of the complaint device, engineering was unable to perform any visual inspection, functional testing, or dimensional analysis.Fluoroscopy video was reviewed, and the evaluation showed that balloon inflation was constrained at the distal end, with the distal constraint eventually resolving and full inflation subsequently achieved.The valve also appeared to be appropriately aligned between the markers prior to deployment.Review of the 3mensio imaging revealed calcification at the landing zone and tortuosity of the right iliac artery.The instructions for use (ifu), and training manuals have been reviewed.No inadequacies have been identified with regards to warnings, contraindications, and the directions/conditions for the successful use of the device.The complaint inflation difficulty was confirmed based on provided imagery.As the device was not returned, engineering was unable to perform any visual examination, functional testing, or dimensional analysis.Therefore, the presence of a manufacturing non-conformance was unable to be determined.However, review of the dhr and lot history did not provide any indication that a manufacturing non-conformance would have contributed to the complaint event.A review of ifu/training materials revealed no deficiencies.Furthermore, no abnormalities were reported during device unpacking or preparation.The patient screen manual provides guidance on proper assessment of the native aortic valve anatomy (e.G., valve type, annulus size, calcium distribution, etc.) and on determining patient suitability for the tavr procedure.An oval annulus and lvot can create uneven resistance and potentially lead to uneven inflation.Patient anatomical factors, such as calcification and angulation of the aorta can constrain the delivery system balloon during deployment and may contribute to difficulty inflating the balloon.Additionally, navigating through tortuous anatomy may cause transient kinking or twisting of the delivery system, partially obstructing the inflation lumen and altering fluid pressure transmission to the balloon, resulting in uneven inflation.The investigation did not conclusively identify a root cause.Analysis of the 3mensio imaging revealed the presence of calcification, a tortuous iliac artery, and moderate-to-severe elliptical landing zone geometries.The reported event may be associated with patient specific anatomical factors including annular shape, valve morphology, and calcium distribution that could have influenced balloon deployment.Although the asymmetrical deployment is consistent with a constrained inflation pattern, there is insufficient evidence to determine if constrainment was a contributing factor.Without the returned device, further investigation could not be performed.Based on the available information, the root cause remains indeterminable.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.Since no edwards product defects or labeling deficiencies were identified, no corrective or preventative action is required.
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