(b)(4).The case description has been reviewed by the corporate medical affairs manager whose assessment is below: "this event, (date unknown and) reported on 20-09-2022, is described as a cardioroot graft implantation for a bentall procedure, where the surgeon stated that hemostasis and coronary reimplantation was difficult.Per the reporter, the graft remained implanted, and the patient is doing well.No additional information is available, and we have been informed that no more details will be provided.There was no mention if there were any intraoperative challenges, such as a complicated procedure, friable tissue, or difficult anatomy which may have contributed to surgeon¿s difficulty.Also not provided by the complainant are the patient¿s coagulation parameters during the procedure.It would be important to know if it was additional sutures or the reversal of heparin which resolved the hemostasis issue, and if the reimplantation of the coronaries was due to a technically difficult case or some other factor.It would also be important to understand where the issue of hemostasis occurred ¿ if it was needle hole bleeding around the anastomosis or blushing throughout the graft.There is no mention of the quantity of blood loss or if any blood products were administered to the patient.Also pertinent to the case is if the patient had any pre-existing health issues which would contribute to the difficulty that the surgeon experienced.No information regarding the size of or lot number of the graft implanted, therefore no investigation can be conducted on retention product from the same lot.In conclusion, based on the limited information provided in this complaint record and without knowing the surgical details regarding the implantation of the cardioroot vascular graft, it is difficult to ascertain the exact cause of the surgeon¿s difficulty.However, when taking into consideration the lack of a prolonged procedure and the positive patient outcome, it is reasonable to conclude that the issue was due to the patient anatomy and/or surgeon¿s inexperience with the graft and not the prosthetic graft itself." the actual device involved in the adverse event remained implanted.
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