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  • Title: Follow-up studies of three subtypes of acute postinfectious glomerulonephritis ascertained by renal biopsy.
    Author: Sorger K, Gessler M, Hübner FK, Köhler H, Olbing H, Schulz W, Thoenes GH, Thoenes W.
    Journal: Clin Nephrol; 1987 Mar; 27(3):111-24. PubMed ID: 3552342.
    Abstract:
    Quantitative correlative investigations by means of light, immunofluorescence and electron microscopy carried out in the early phase of the disease on 58 patients (children and adults) with acute postinfectious glomerulonephritis (APGN) formed the basis of subtyping APGN into a starry sky type, a mesangial type and a garland type [Sorger et al. 1982 and 1983]. The subtypes also showed differences in the clinical picture. The garland type was of special interest since most patients had severe proteinuria. This caused us to follow-up the patients with these three subtypes (up to 10 years and 7 months). Proteinuria proved to be the most reliable follow-up parameter. A comparison of the three groups showed that proteinuria rapidly declined as a rule in the patients with the starry sky and the mesangial patterns. In the garland pattern there were also cases with a complete disappearance of proteinuria, especially in younger patients, but other patients still had a distinct proteinuria after months to years indicating a protracted or chronic course. The morphological findings of the rebiopsies correlated with the clinical courses, especially with the course of proteinuria. The three morphological subtypes are thus significant for estimating the prognosis of APGN, which is favorable as a rule in patients with the starry sky and mesangial types, but much more unfavorable in patients with the garland type. Even if fewer cases with demonstrated streptococcal etiology were found in the garland pattern group, i.e., among patients with the most uncertain prognosis, than in the remaining groups, these differences were not statistically significant. Therefore, our investigations do not provide any indications that different etiological factors are responsible for the three subtypes. The individual immune response of the host body is likely to be very much more decisive.
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