On (b)(6) 2015, the zenith flex with spiral-z technology aaa endovascular graft iliac leg was placed.No complications were noted.On (b)(6) 2015, patient presents with left thrombosis iliac leg graft.Patient went to the operating room to undergo thrombectomy and supervision of the endograft.On (b)(6) 2015, patient left the operating room in good condition.
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By report the patient began to experience symptoms indicative of occlusion 6 days post a zenith endovascular procedure.Secondary minimally invasive treatment was necessary.During the investigation, a review of the complaint history and trends as well as the instructions for use (ifu) was conducted.Each zenith device is shipped with instructions for use (ifu) listing the indications for use, contraindications, warnings & precautions, and the correct deployment procedure.In regards to occlusions, the ifu lists several warnings/precautions that, if followed, could prevent this failure mode from occurring or lessen the associated effects, anatomical criteria, anatomical conditions, importance of accurate placement.Specific to this case zenith ifus state: "patients experiencing reduced blood flow through the graft limb and/or leaks may be required to undergo secondary interventions or surgical procedures." 'vessels that are significantly calcified, occlusive, tortuous or thrombus-lined may preclude placement of the endovascular graft and/or may increase the risk of embolization." no product or imaging were returned to assist with this investigation, and only limited information was provided.Based on the information, a definitive root cause cannot be determined or reported at this time.There is no evidence to suggest that the device design or functionality contributed to this event.We will continue to monitor for similar complaints and notify the appropriate internal personnel.
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