title: [C-reactive protein in the urine. The differential diagnosis of renal functional disorders following kidney transplantation].
abstract: A prospective study was undertaken in 73 patients (24 women, 49 men; mean age 47.9 [21-64] years) after renal transplantation to discover whether the presence of C-reactive protein in urine (CRPu) and its serum concentration (CRPs) are of value in the differential diagnosis of abnormal function in the transplanted kidney. CRPu concentration was measured with a highly sensitive immunoluminometric assay (minimal threshold value 6 micrograms/l). CRPu was demonstrated in 36 histologically proven rejection episodes and 21 bacterial infections proven by culture. In contrast, no CRPu was demonstrated when the course was normal and in individual cases of cyclosporin renal toxicity, as well as in 27 of 34 cases of cytomegalovirus infection. In addition, the CRPs to CRPu ratio was a sensitive means of distinguishing between rejection (CRPs/CRPu less than 1) and bacterial infection (CRPs/CRPu greater than 1). Determining CRPu concentration thus proved to be useful in the initial monitoring of renal transplantation before starting any specific urinary protein diagnosis, as well as (together with CRPs) in the diagnosis of severe posttransplantation complications.
authors.affiliation: Klinik für Innere Medizin, Medizinische Universität Lübeck.
authors.forename: J
authors.initials: J
authors.lastname: Steinhoff
authors.forename: U
authors.initials: U
authors.lastname: Bühner
authors.forename: A
authors.initials: A
authors.lastname: Feddersen
authors.forename: W G
authors.initials: WG
authors.lastname: Wood
authors.forename: R
authors.initials: R
authors.lastname: Preuss
authors.forename: L
authors.initials: L
authors.lastname: Fricke
authors.forename: P
authors.initials: P
authors.lastname: Faerber
authors.forename: C
authors.initials: C
authors.lastname: Dodt
authors.forename: J
authors.initials: J
authors.lastname: Hoyer
authors.forename: K
authors.initials: K
authors.lastname: Sack
mesh_terms: D000328:Adult; D002097:C-Reactive Protein / Q000652:urine*; D003937:Diagnosis, Differential; D005260:Female; D006084:Graft Rejection; D006801:Humans; D007159:Immunologic Tests / Q000379:methods; D007674:Kidney Diseases / Q000175:diagnosis* / Q000652:urine; D016030:Kidney Transplantation / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis* / Q000652:urine; D011446:Prospective Studies; D012680:Sensitivity and Specificity
chemical_list: D002097:C-Reactive Protein
vernacular_title: C-reaktives Protein im Urin. Differentialdiagnose renaler Funktionsstörungen nach Nierentransplantation.