Model Number PVF-L |
Device Problem
Migration or Expulsion of Device (1395)
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Patient Problem
Cardiac Enzyme Elevation (1838)
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Event Date 01/18/2024 |
Event Type
Injury
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Manufacturer Narrative
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H3 other text : unknown disposition.
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Event Description
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The manufacturer was notified of a reoperation on a patient implanted with a perceval plus prosthesis, size l due to valve displacement, the perceval valve had been implanted on (b)(6) 2024 through lateral minithoracotomy surgical approach.The patient's native aortic valve was triscuspid, stenotic with annular calcification.The annulus size was evaluated to be 22 mm pre-operatively and aorta ascendens 38-40mm.Reportedly, no issues were experienced during the valve collapsing and release and no concomitant procedures were performed.The intraoperative echo revealed trace of paravalvular leakage with a competent prosthesis.After 48 hours, the troponin and ck-mb were raised and the echo revealed a new lateral hypokinesis.The patient was sent to the cath lab, where the valve was found moved out to the level of the left main vessel.Urgently an aortic valve replacement was carried out with ecmo implantation.The perceval plus valve was replaced with a corcym bicarbon mechanical aortic heart valve, size 21 (unknown model).The mechanical prosthesis was implanted intra-annular after performing a small further decalcification.As per information received on 9 feb 2024, the patient was weaned from ecmo but still in icu, rehabilitating until the update received on february 21.A further update was received by the manufacturer on 6 march 2024, according to which the patient was discharged from the hospital and is currently recovering in a rehabilitation facility.As per medical judgement received, the displacement of the perceval prosthesis was possibly due to an oversizing of the valve.The patient's medical history includes a slight obesity.
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Manufacturer Narrative
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The manufacturing and material records for the perceval plus heart valve and stent involved in the event, as they pertain to the reported issue, were retrieved and reviewed by the manufacturer¿s quality engineering.The results confirmed that this valve satisfied all material, visual, and performance standards required for a model # pvf-l perceval plus heart valve at the time of manufacture and release.Since the explanted prosthesis was not returned for analysis, the manufacturer couldn't perform further investigation on the device.Based on the information and the medical judgment received, it's reasonable to conclude that the displacement of the device was caused by an oversizing of the perceval valve.In fact, it was reported that patient annulus size was evaluated to be 22 mm at the pre-operative assessment, which is smaller than the size recommended for a perceval plus valve size l (aortic annulus diameter of 23-25 mm) as per ifus.Moreover it was reported that a corcym bicarbon mechanical prosthesis size 21 was implanted as a replacement valve after further slight decalcification of the annulus.Even if the specific model of the bicarbon valve was not ultimately confirmed, since the prosthesis was implanted in intra-annular position it can be deduced that it was a fitline model.Based on dimensional considerations, this further confirms the oversizing of the perceval valve as the most reasonable cause of the event.It is possible that, despite the correct pre-operative assessment of the patient's annulus size, while performing the surgery, an unintended user error led to an incorrect sizing of the perceval valve intra-operatively which ultimately resulted in oversizing and consequent displacement of the prosthesis.H3 other text: unknown disposition.
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Search Alerts/Recalls
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