A valiant captivia stent graft was implanted in a patient for the endovascular treatment of an unknown sized thoracic aortic aneurysm.A non-mdt stent graft was also implanted during the procedure.It was reported during the index procedure after the valiant navion was successfully implanted the non-mdt stent graft was placed at the target position.It was reported that just before implantation, bradycardia and cardiac arrest occurred.Angiography was performed and confirmed the presence of aortic regurgitation.Percutaneous cardiopulmonary support (pcps) was carried out.The symptoms recovered temporarily by using cardiac massage and a defibrillator and pcps was stopped.Angiography was performed again and the non-mdt stent graft implanted successfully.Angiography was performed again and confirmed that the aortic regurgitation persisted, and cardiac arrest then re-occurred.Pcps was restarted and intra-aortic balloon pumping (iabp) was also used to assist with circulation.The patient was transferred to the intensive care unit and was reported to have expired three days post the index procedure.As per the physician, the patient has a medical history of heart failure and poor heart condition.It was unable to be concluded at what point the aortic regurgitation occurred.It was considered, however, that there was the possibility the guide wire used during the procedure may have made contact with and damaged the aortic valve during the implantation of the non-mdt stent graft.No additional clinical sequalae were reported and the patient is expired.
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