title: Urinary thromboxane B2 as an indicator of acute rejection in human liver transplantation.
abstract: Urinary thromboxane B2 (u-TXB2) was measured and analyzed after a human liver transplantation in 28 patients (30 transplantations) who underwent an orthotopic liver transplantation. Our results showed that the u-TXB2 levels exceeded 3.0 micrograms/mmol creatinine in only 2 of the 13 cases that had a favorable postoperative course. In 10 of the 11 episodes of acute rejection, the u-TXB2 levels exceeded 3.0 micrograms/mmol creatinine. In 6 episodes of acute rejection, the TXB2 levels were more than 5.0. In 4 out of 6 episodes of infection unassociated with rejection, the u-TXB2 values were between 3.0 and 4.9 micrograms/mmol creatinine. In 2 episodes of liver necrosis the TXB2 value reached 5.3 in one and 0.9 in the other. In conclusion, the u-TXB2 level was observed to be elevated in cases of acute rejection, infection, or necrosis. The diagnosis of acute rejection on the basis of u-TXB2 showed a sensitivity of 58.8%, a specificity of 93.3%, and an accuracy of 75.0% for a threshold level of 3.0 micrograms/mmol creatinine, and a sensitivity of 85.7%, a specificity of 79.2%, and an accuracy of 80.6% for a threshold level of TXB2 of 5.0 micrograms/mmol creatinine. These results indicate that the serial determination of u-TXB2 is a useful diagnostic means for predicting acute rejection after liver transplantation.
authors.affiliation: Hepatobiliary Surgery and Liver Transplant Research Center, Paul Brousse Hospital, Villejuif, France.
authors.forename: H
authors.initials: H
authors.lastname: Isozaki
authors.forename: O
authors.initials: O
authors.lastname: Farges
authors.forename: D
authors.initials: D
authors.lastname: Samuel
authors.forename: R
authors.initials: R
authors.lastname: Adam
authors.forename: H
authors.initials: H
authors.lastname: Bismuth
mesh_terms: D000293:Adolescent; D000328:Adult; D003586:Cytomegalovirus Infections / Q000175:diagnosis / Q000276:immunology; D003937:Diagnosis, Differential; D005260:Female; D006084:Graft Rejection / Q000175:diagnosis* / Q000276:immunology; D006801:Humans; D008103:Liver Cirrhosis / Q000209:etiology / Q000276:immunology / Q000601:surgery*; D016031:Liver Transplantation / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D009894:Opportunistic Infections / Q000175:diagnosis / Q000276:immunology; D013530:Surgical Wound Infection / Q000175:diagnosis / Q000276:immunology; D013929:Thromboxane B2 / Q000652:urine*
chemical_list: D013929:Thromboxane B2