The allograft was returned to cryolife and a sample evaluation was performed.The graft was returned with two cracks in the conduit.The larger of the two cracks was located in the rsc [right semi-lunar cusp] sinus and measured approximately 11mm.The second crack was located proximal to the right pulmonary artery and measured approximately 6mm long.There was no other visual damage to the allograft.A review of processing records was performed and no non-conformances or deviations were identified during this review.According to the processing records, this graft did not contain any attributes that would have rejected the graft.All attributes noted during inspection of the allograft were documented appropriately and the allograft met specifications.A review of training records indicates that the technician who inspected this allograft at packaging was appropriately trained for the task performed.The issue noted by the complainant may have been caused by mishandling the packaged graft while in the frozen state.The allograft was shipped to (b)(6) via (b)(6) on 12/26/2017 for priority overnight.Prior to the shipment of this allograft, there were no abnormalities noted on the outer packaging.There were no incident reports filed in the courier database for (b)(6) during transit/delivery of this allograft.The ifu provides the following information: "cryopreserved allografts are fragile and must be handled with care while in the frozen state to avoid causing damage to the allograft or packaging," "the patch may be damaged or the integrity of the pouch may be compromised if not properly handled.Do not implant the cryopatch sg:.If after unpacking, the patch was not stored at or below -135°c; if the innermost pouch is damaged, leaks, or is otherwise compromised; if the package has been handled with sharp instruments, dropped while at cryogenic temperatures, or otherwise mishandled, because of the risk of traumatic tissue damage and/ or loss of pouch integrity; if the patch is damaged," "do not damage the patch.If the patch is damaged, the patch must be explanted and replaced," "the cardiac thaw and rinse instructions must be followed exactly to minimize physical damage to the patch," and "cryopatch sg is human biological tissue and, as such, presents considerable anatomical variation.Specific allograft attributes (representing normal biological variation) and donor-specific information are described in the allograft diagram and the certificate of assurance supplied with each allograft.".
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