The manufacturer was informed on this event through the recent publication 'acute dislocation of a perceval valve treated with tavi valve-in-valve: a literature review and case report' by julieta d morales-portano et al.A (b)(6) male with a history of hypertension, presented with severe dyspnea (nyha-iii); severe aortic stenosis was revealed by transthoracic echocardiography (tte); surgical procedure with a perceval valve size m (pvs23) was made without any complications (mean gradient 12 mmhg.The patient was transferred to the intensive care unit, but twenty-four hours after the procedure, the patient presented acute heart failure.The tee revealed a severe paravalvular leak, then fluoroscopy confirmed the dislocated and dysfunctional perceval valve.An emergency transcatheter aortic valve-in-valve (tavi-viv) procedure with a corevalve 29 mm was performed to correct the dislocated valve.The clinical status of the patient improved rapidly, and the patient was discharged without any complications one week after the procedure.
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Sections changed: b3, b4, b5, d6, g4, g7, h1, h2, h6.A complete manufacturing and material records review for the device has been performed.The results confirmed that the device satisfied all material, visual and performance standards required at the time of manufacture and release.Since the device was not explanted (viv performed), no further device investigation is possible at this time.Based on the available information, and given that no analysis of the device could be performed, it is not possible to draw a definitive conclusion for the reported event.However, based on the document review performed no manufacturing deficits were identified.As commented in the paper, 'although the surgeon was familiarized with the surgical technique, we cannot assure whether or not the cause of the dislocation could be related to the valve undersizing or to a high positioning of the prosthesis'.Based on this, a possible root cause can be traced to an unintended procedural error (malpositioning/mis-sizing).
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