PMID- 12780663 OWN - NLM STAT- MEDLINE DCOM- 20031021 LR - 20191107 IS - 0902-0063 (Print) IS - 0902-0063 (Linking) VI - 17 IP - 3 DP - 2003 Jun TI - Chronic rejection with or without transplant vasculopathy. PG - 163-70 AB - BACKGROUND: Chronic allograft nephropathy (CAN) is defined and graded in the Banff '97 scheme by the severity of interstitial fibrosis and tubular atrophy. It has been denoted that chronic rejection can be diagnosed if the typical vascular lesions are seen, consisting of fibrointimal thickening. We observed several patients who developed CAN without vascular changes or signs of cyclosporine toxicity. Therefore, we assessed the risk factor profiles of CAN with and without transplant vasculopathy. METHODS: A cohort of 654 cadaveric renal transplants performed between 1983 and 1997 that functioned for more than 6 months was studied. Fifty-four transplants had CAN defined by a significant decline in renal function together with interstitial fibrosis and tubular atrophy without signs of cyclosporine nephrotoxicity or recurrent disease. Using the Banff chronic vascular (CV) score, 23 of 54 cases (43%) had a chronic vasculopathy score of 0 or 1 whereas 31 cases (57%) had a CV score of 2 or 3. Applying multivariate logistic regression, predictor variables of the two groups were compared with 231 transplants with a stable function for at least 5 yr. RESULTS: Graft histology was obtained at a mean of 2.4 and 2.9 yr after transplantation in the group with or without vasculopathy, respectively. Acute rejection episodes (AREs) after 3 months post-transplantation were the strongest risk factor for both forms of CAN, odds ratio (OR) 14.7 (6.0-36.0). CAN with vasculopathy was also associated with transplants performed in the 1980s, OR 4.95 (1.65-14.9) and with creatinine clearance at 6 months, OR 0.58 (0.44-0.75) per 10 mL/min increase. In contrast, young recipient age, OR 0.69 (0.47-0.99) per 10-yr increase, and the presence of panel reactive antibodies at the time of transplantation, OR 1.26 (1.08-1.47) per 10% increase, were independent risk factors for CAN without vasculopathy. CONCLUSIONS: After exclusion of cyclosporine toxicity or recurrent disease CAN occurred without moderate or severe transplant vasculopathy in 43% of the cases. The correlation with young recipient age, sensitization and late ARE suggest an immune pathogenesis, consistent with chronic rejection. FAU - Sijpkens, Yvo W J AU - Sijpkens YW AD - Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands. y.w.j.sijpkens@lumc.nl FAU - Doxiadis, Ilias I N AU - Doxiadis II FAU - van Kemenade, Folkert J AU - van Kemenade FJ FAU - Zwinderman, Aeilko H AU - Zwinderman AH FAU - de Fijter, Johan W AU - de Fijter JW FAU - Claas, Frans H J AU - Claas FH FAU - Bruijn, Jan A AU - Bruijn JA FAU - Paul, Leendert C AU - Paul LC LA - eng PT - Journal Article PL - Denmark TA - Clin Transplant JT - Clinical transplantation JID - 8710240 RN - 83HN0GTJ6D (Cyclosporine) SB - IM MH - Acute Disease MH - Adult MH - Atrophy MH - Chronic Disease MH - Cohort Studies MH - Cyclosporine/toxicity MH - Fibrosis/pathology MH - *Graft Rejection/pathology MH - Graft Survival MH - Humans MH - Kidney Transplantation/immunology/*pathology MH - Kidney Tubules/pathology MH - Logistic Models MH - Risk Factors MH - Time Factors MH - Vascular Diseases/*pathology EDAT- 2003/06/05 05:00 MHDA- 2003/10/22 05:00 CRDT- 2003/06/05 05:00 PHST- 2003/06/05 05:00 [pubmed] PHST- 2003/10/22 05:00 [medline] PHST- 2003/06/05 05:00 [entrez] AID - 039 [pii] AID - 10.1034/j.1399-0012.2003.00039.x [doi] PST - ppublish SO - Clin Transplant. 2003 Jun;17(3):163-70. doi: 10.1034/j.1399-0012.2003.00039.x.