Pol. Merkur. Lek (Pol. Med. J.), 2020, XLVIII/284: 105-107 Maximize

Pol. Merkur. Lek (Pol. Med. J.), 2020, XLVIII/284: 105-107

Title: Pregnant woman with primary membranous nephropathy – case report

Authors: Jankowski J, Jedynak P, Pazik J. 

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Pregnant woman with primary membranous nephropathy – case report

Jankowski J, Jedynak P, Pazik J.

Department of Transplantation Medicine, Nephrology and Internal Medicine, Medical University of Warsaw

Membranous nephropathy is a common form of glomerulonephritis typically presenting between 30 to 50 years of age with nephrotic range proteinuria, with one third of patients undergoing spontaneous remission, one third experiencing non-progressive CKD (Chronic Kidney Disease) while the remaining third progressing to ESRD (end stage renal disease).
Case report
. A 21-year old pregnant female developed massive proteinuria and hypoalbuminemia during first weeks of pregnancy and required intensive nephrological evaluation and treatment. Renal biopsy was performed, microscopic examination was consistent with Membranous Nephropathy and as anti-PLA2R antibodies tested positive, active disease was confirmed. The patient received an immunosuppressive treatment consisting of prednizone and cyclosporine A, enoxaparine was also implemented. In the follow up proteinuria and hypoalbuminemia decreased significantly, stable eGFR and anti-PLA2R (M-type phospholipaseA2 receptor) depletion were observed. C-section was performed at 31 weeks of gestational age due to premature rupture of membranes. The baby developed correctly, showed no signs of nephrotic syndrome. After delivery the mother’s immunosuppressive treatment was continued.
. Diagnostic algorithm of adult patients with nephrotic syndrome suggests that in cases positive for anti PLA2R antibodies one can diagnose idiopathic membranous nephritis (IMN) based on serological testing and desist kidney biopsy. An early immunosupressive treatment applied in described case confirms proper procedure.

Key words: primary membranous nephropathy, pregnancy, anti-PLA2R antibodies

Pol Med J, 2020; XLVIII (284); 105–107