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• W2134927762 abstract "Progression of idiopathic membranous glomerulonephritis (IMGN) to renal insufficiency depends on various clinical and laboratory factors that have been taken into account in most therapeutic trials based on such aggressive drugs as alkylating agents or cyclosporine. However, few studies have envisaged the prognostic significance of morphological factors and their importance for stratification of patients enrolled in therapeutic trials.Records of patients with membranous glomerulonephritis (MGN) from 1976 to 2001 from five nephrology units were reviewed retrospectively. Secondary causes were ruled out, especially occult malignancy. Eligible cases were analyzed according to clinical profile, abundance of proteinuria, blood pressure, and standard renal pathological characteristics, including MGN staging, vascular lesions, and degree of interstitial fibrosis on a semiquantitative scale. Renal survival curves from renal insufficiency were calculated by the Kaplan-Meier method. Mean follow-up was 68 months.Initial multiple regression analysis showed that the most significant prognostic variable was the presence of focal segmental glomerulosclerosis (FSGS)-type glomerular lesions (P < 0.001), and patients therefore were divided into two groups: 42 patients had MGN only (group I) and 30 patients had superimposed FSGS (group II). Group II patients were more hypertensive, and all renal lesions were significantly more severe, with a higher mean stage of membranous lesions, more obsolescent glomeruli, greater mesangial proliferation, and worse interstitial fibrosis and vascular lesions. Renal survival for group II was significantly lower (P < 0.001, log-rank test). Only one remission occurred in group II, whereas 38% of group I patients experienced remission (P = 0.002). We pooled our results with those of three previous studies in the literature, totaling 282 patients (156 patients, MGN alone; 126 patients, MGN plus FSGS). Remission rates were 32% and 12.7%, respectively (P < 0.001). The prognostic value of hypertension was noted in three of the four series, including ours.FSGS lesions superimposed on IMGN are common and portend a significantly worse outcome in terms of nephrotic syndrome and renal insufficiency. Therefore, we consider that future therapeutic trials of IMGN should include case stratification based on the presence or absence of FSGS on pretreatment biopsy." @default.
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• W2134927762 date "2003-01-01" @default.
• W2134927762 modified "2023-10-18" @default.
• W2134927762 title "Clinical and morphological prognostic factors in membranous nephropathy: Significance of focal segmental glomerulosclerosis" @default.
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• W2134927762 doi "https://doi.org/10.1053/ajkd.2003.50015" @default.
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