4.1 Article

Clinical Significance of the Interposition Graft for Reconstruction Between the Common Hepatic Artery and Gastroduodenal Artery for Arterial Patency of the Pancreas Graft in Pancreas Transplantation

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TRANSPLANTATION PROCEEDINGS
卷 55, 期 4, 页码 980-984

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ELSEVIER SCIENCE INC
DOI: 10.1016/j.transproceed.2023.03.063

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Due to limited organ donations from deceased donors in Japan, pancreas grafts for pancreas transplantation (PTx) are often harvested from the same donor surgery as the liver graft. This study investigated the clinical significance of gastroduodenal artery (GDA) reconstruction using an interposition graft (I-graft) in maintaining blood flow to the pancreas graft in patients after PTx.
Background. Due to the limited number of organ donations from deceased donors in Japan, pancreas grafts for pancreas transplantation (PTx) are frequently harvested from the donor in the same donation surgery as the liver graft. In such a situation, the common hepatic artery (CHA) and gastroduodenal artery (GDA) are dissected, resulting in decreased blood flow to the head of the pancreas graft. Therefore, GDA reconstruction using an interposition graft (I-graft) between the CHA and GDA has been traditionally performed to maintain blood flow. This study investi-gated the clinical significance of GDA reconstruction with the I-graft regarding the arterial patency of the pancreas graft in patients after PTx. Methods. Fifty-seven patients underwent PTx for type 1 diabetes mellitus at our hospital between 2000 and 2021. Twenty-four cases in which GDA reconstruction was performed using the I-graft and artery blood flow of the pancreas graft was evaluated by contrast-enhanced com-puted tomography or angiography were included in this study. Results. The patency of the I-graft was 95.8%, and only one patient had a thrombus in the I-graft. Nineteen patients (79.2%) had no thrombus in the artery of the pancreas graft; the other five cases had thrombus in the superior mesenteric artery (SMA). The patient with the thrombus in the I-graft required graftectomy for the pancreas graft. Conclusions. The patency of the I-graft was favorable. Furthermore, the clinical significance of the GDA reconstruction with the I-graft is suggested to maintain blood flow in the pancreas head if the SMA is occluded.

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