Review Article
Ischemia-Reperfusion Injury and Ischemic-Type Biliary Lesions following Liver Transplantation
Table 1
Pathomechanisms leading to ITBLs after liver transplantation.
| Type of injury | |
| Ischemia reperfusion related | |
| (i) Warm ischemia in the donor | | (ii) Prolonged cold ischemia time | | (iii) Reperfusion injury | | (iv) High viscosity of cold preservation solutions | | (v) Warm ischemia during graft implantation | | (vi) Microcirculatory disturbances in the peribiliary capillary plexus | |
| Bile salts related | |
| (i) Cytoprotective hydrophilic bile salts (decreased after liver transplantation) | | (ii) Cytotoxic hydrophobic bile salts (accumulated after liver transplantation) | | Insufficient flush out of bile from the bile ducts during liver transplantation | | High biliary bile salt/phospholipid ratio after liver transplantation | | Impaired vectorial bile duct secretion with intracellular accumulation of bile salts in cholangiocytes | | Impaired biliary secretion of the protecting cholangiocyte factor HCO3(−) | |
| Immune mediated | |
| (i) ABO-incompatible liver transplantation | | (ii) Acute rejection | | (iii) Chronic rejection | | (iv) Gender (female liver transplanted in male recipient) | | (v) Cytomegalovirus (CMV) infection in the graft | | (vi) Chemokine polymorphism in graft recipients (CC receptor 5 delta 32) | | (vii) Preexisting autoimmune disease of the graft | | Primary sclerosing cholangitis | | Autoimmune hepatitis | | (viii) Metalloproteinase (MMP) polymorphism in donor and recipient graft | | MM P-2 genotype polymorphism | |
|
|