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  • Title: A 55-Year-Old Man with Recurrent Gastrointestinal Bleeding Due to Stricture of the Portal Vein Anastomotic Site 12 Years After Combined Pancreas and Kidney Transplantation.
    Author: Rassow S, Büttner S, Thalhammer A, Huber NM, Heise M, Peiffer KH, Avaniadi D, Seifert J, Geiger H, Bechstein WO, Pession U, Hauser IA.
    Journal: Am J Case Rep; 2022 Apr 19; 23():e936148. PubMed ID: 35437299.
    Abstract:
    BACKGROUND Varices of the upper gastrointestinal tract are due to portal hypertension and can result from occlusion of the portal venous system. This report is of a 55-year-old man with recurrent gastrointestinal bleeding due to stricture of the portal vein anastomotic site to inferior vena cava (IVC) 12 years after combined pancreas and kidney transplantation. CASE REPORT A 55-year-old man presented bleeding episodes requiring transfusion of more than 70 units of red blood cells (RBCs), complicated by bacterial and viral infection episodes including cytomegalovirus (CMV) reactivation and hepatitis E and transient impairment of function of the renal allograft. Endoscopy, computed tomography (CT) scan, and angiography revealed jejunal varices due to anastomotic stricture at the portal vein to IVC as the cause of the hemorrhage. Neither conservative therapy nor an anastomosis between the splenic vein of the graft and the internal iliac vein as a bypass could stop the life-threatening bleeding. During the recurrent bleeding, CD4 T lymphocytes were low, indicating immunodeficiency despite paused immunosuppressive therapy. After the hemorrhage resolved and immunosuppression was restarted, CD4 T lymphocyte levels normalized. Finally, to stop the hemorrhage and save the transplanted kidney and the patient's life, graft pancreatectomy was performed. Long-term damage to the renal transplant was not found. CONCLUSIONS This report is of a rare case of portal hypertension as a long-term complication of transplant surgery. Although acute venous thrombosis at the anastomotic site is a recognized postoperative complication of pancreatic transplant surgery, this case highlights the importance of post-transplant follow-up and diagnostic imaging.
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