Membranous glomerulonephritis combined with anti-neutrophil cytoplasm antibody-associated crescentic glomerulonephritis
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Department of Nephrology,Changhai Hospital,Second Military Medical University

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Supported by Project of Shanghai Municipal Health Bureau for Young Scholars (2012106) and "1255" Discipline Construction Project of Changhai Hospital of Second Military Medical University (CH125540100).

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    Abstract:

    Objective To study the clinicopathological features of membranous nephropathy(MN) with ANCA-associated crescentic glomerulonephritis (ANCA-associated CGN). Methods 79 cases diagnosed as MN with ANCA associated CGN were selected from the whole English and Chinese literatures and a similar case was from our hospital. Total 80 casess were included in this study to summarize the clinicopathological features, treatment and prognosis. Results 44 male and 36 female patients were included. The average age was 56.8±13.1 years and the average disease onset period was 3.2±3.6 months. In 95% cases, MN and ANCA associated CGN occurred simultaneously. 93.8% patients presented renal dysfunction onset of the disease, the common clinical manifestation were nephrotic syndrome with rapidly progressive glomerulonephritis. All patients were serum ANCA positive and 88.2% cases were MPO-ANCA positive. The average 24h proteinuria was 5.27±4.3g and SCr was 420.7±307μmol/L. Renal biopsy showed crescent formation and GBM thicken. Immunofluorescence showed IgG and C3 deposits were positive. Prednisone combined with CTX could improve the prognosis. 62.7% cases reached relieve remission. Conclusions The coexistence of ANCA associated CGN and MN was rare. The pathogenesis of this condition is still unclear. Immunosuppressive therapy might improve the outcome.

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History
  • Received:July 05,2016
  • Revised:August 31,2016
  • Adopted:October 14,2016
  • Online: November 21,2016
  • Published:
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