Journals / Uludağ Üniversitesi Tıp Fakültesi Dergisi / 2025 / Cilt: 52

Prognostic Value of Berden Histopathological Classification in Anca-Associated Vasculitis with Renal Involvement: A Single-Center Retrospective Cohort Study

Böbrek Tutulumu Olan ANCA İlişkili Vaskülitte Berden Histopatolojik Sınıflandırmasının Prognostik Değeri: Tek merkezli Retrospektif Kohort Çalışması

Mehmet Fethullah Aydın(Balıkesir Atatürk City Hospital, Department of Nephrology, Balıkesir, Türkiye.)0000-0002-5665-7402
Ayşegül Oruç(Bursa Uludağ University, Faculty of Medicine, Department of Nephrology, Bursa, Türkiye.)0000-0002-0342-9692
Berna Aytaç Vuruşkan(Bursa Uludağ University, Faculty of Medicine, Department of Pathology, Bursa, Türkiye.)0000-0001-9549-8435
Suat Akgür(Bursa Çekirge State Hospital, Department of Nephrology, Bursa, Türkiye.)0000-0003-1745-6744
Yavuz Ayar(Bursa City Hospital, Department of Nephrology, Bursa, Türkiye.)0000-0003-4607-9220
Mustafa Güllülü(Bursa Uludağ University, Faculty of Medicine, Department of Nephrology, Bursa, Türkiye.)0000-0002-8911-7189
Kamil Dilek(Bursa Uludağ University, Faculty of Medicine, Department of Nephrology, Bursa, Türkiye.)0000-0001-6149-1913
Mahmut Yavuz(Bursa Uludağ University, Faculty of Medicine, Department of Nephrology, Bursa, Türkiye.)0000-0001-6755-6386
Alparslan Ersoy(Bursa Uludağ University, Faculty of Medicine, Department of Nephrology, Bursa, Türkiye.)0000-0002-0710-0923
Abdülmecit Yıldız(Bursa Uludağ University, Faculty of Medicine, Department of Nephrology, Bursa, Türkiye.)0000-0001-5941-9103
Pages
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Publication Date
2026-10-07
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Histopathological biopsy findings, histopathological classification model, and certain laboratory markers are effective predictors of treatment response and prognosis in ANCA-associated glomerulonephritis.

📌 3 Key Takeaways

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Objective & Hypothesis:The kidneys are frequently affected by anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides, and this renal involvement is a significant determinant of the disease's prognosis.
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Key Findings & Data:This retrospective analysis comprised 47 cases of AAV identified from a cohort of 1954 patients who underwent renal biopsy at our institution between 1987 and 2017.
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Conclusion & Impact:Histopathological biopsy findings, histopathological classification model, and certain laboratory markers are effective predictors of treatment response and prognosis in ANCA-associated glomerulonephritis.
🔬Design:Modeling & Simulation
📍Scope:2017 Verileri
⚙️Variables:Anti-nötrofil sitoplazmik antikor · glomerülonefrit · histopatolojik sınıflandırma

Abstract

The kidneys are frequently affected by anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides, and this renal involvement is a significant determinant of the disease's prognosis. Certain demographic, laboratory, and histopathological findings are effective in predicting kidney and patient survival. The objective of this research was to evaluate both the prognostic utility of the Berden histopathological classification and the determinants of survival among patients with ANCA-associated vasculitis (AAV) and concurrent renal involvement, who were diagnosed at Bursa Uludağ University Hospital. This retrospective analysis comprised 47 cases of AAV identified from a cohort of 1954 patients who underwent renal biopsy at our institution between 1987 and 2017. The demographic, histopathological, and laboratory findings of the patients were examined. Glomerular findings in renal biopsies were evaluated to classify the histopathology and calculate the percentage of normal glomeruli. The prognostic value of these parameters for predicting first-year treatment responses (remission, end-stage renal disease, and death) was evaluated. Histopathological classification, the percentage of normal glomeruli, baseline creatinine, eGFR, proteinuria, and C-reactive protein (CRP) levels were all identified as significant predictors of first-year treatment response (p = 0.046, p = 0.004, p = 0.026, p = 0.021, p = 0.039, and p = 0.016, respectively). While the focal group showed the best prognosis, the sclerotic group had the worst. Factors associated with a poor prognosis included a low normal glomerular percentage in the kidney biopsy, low baseline eGFR, and high levels of baseline serum creatinine, CRP, and proteinuria. Histopathological biopsy findings, histopathological classification model, and certain laboratory markers are effective predictors of treatment response and prognosis in ANCA-associated glomerulonephritis.

Özet

Böbrekler sıklıkla anti-nötrofil sitoplazmik antikor (ANCA) ile ilişkili vaskülitlerden etkilenir ve bu böbrek tutulumu, hastalığın prognozunun önemli bir belirleyicisidir. Bazı demografik, laboratuvar ve histopatolojik bulgular böbrek ve hasta sağkalımını tahmin etmede etkilidir. Bu araştırmanın amacı, Bursa Uludağ Üniversitesi Hastanesi'nde ANCA ilişkili vaskülit (AAV) ve eş zamanlı böbrek tutulumu tanısı konulan hastalarda Berden histopatolojik sınıflandırmasının prognostik faydasını ve sağkalım belirleyicilerini değerlendirmektir. Bu retrospektif analiz, 1987 ile 2017 yılları arasında kurumumuzda böbrek biyopsisi yapılan 1954 hastadan oluşan bir kohorttan belirlenen 47 AAV vakasını kapsamaktadır. Hastaların demografik, histopatolojik ve laboratuvar bulguları incelendi. Böbrek biyopsilerindeki glomerüler bulgular, histopatolojiyi sınıflandırmak ve normal glomerül yüzdesini hesaplamak için değerlendirildi. Bu parametrelerin ilk yıl tedavi yanıtlarını (remisyon, son dönem böbrek hastalığı ve ölüm) tahmin etmedeki prognostik değeri değerlendirildi. Histopatolojik sınıflandırma, normal glomerül yüzdesi, başlangıç kreatinin, eGFR, proteinüri ve C-reaktif protein (CRP) düzeyleri, ilk yıl tedavi yanıtının önemli belirleyicileri olarak tanımlandı (sırasıyla p = 0,046, p = 0,004, p = 0,026, p = 0,021, p = 0,039 ve p = 0,016). Fokal grup en iyi prognozu gösterirken, sklerotik grup en kötü prognoza sahipti. Kötü prognozla ilişkili faktörler arasında böbrek biyopsisinde düşük normal glomerül yüzdesi, düşük eGFR değeri ve yüksek serum kreatinin, CRP ve proteinüri düzeyleri yer almaktadır. Histopatolojik biyopsi bulguları, histopatolojik sınıflandırma modeli ve bazı laboratuvar belirteçleri, ANCA ile ilişkili glomerülonefritte tedavi yanıtı ve prognozun etkili öngörücüleridir.

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Cite This Article

Aydın, M. F., Oruç, A., Vuruşkan, B. A., Akgür, S., Ayar, Y., Güllülü, M., Dilek, K., Yavuz, M., Ersoy, A., Yıldız, A., *, M. F. A. (2026). Prognostic Value of Berden Histopathological Classification in Anca-Associated Vasculitis with Renal Involvement: A Single-Center Retrospective Cohort Study. Uludağ Üniversitesi Tıp Fakültesi Dergisi, Cilt: 52. https://doi.org/10.32708/uutfd.1915048

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