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Saudi J Kidney Dis Transpl. 2018 Sep-Oct;29(5):1174-1180. doi: 10.4103/1319-2442.243975.

Analysis of native kidney biopsy: Data from a single center from Bihar, India.

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Department of Nephrology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India.


This is a retrospective study of all native kidney biopsies performed at our center between October 1, 2012 and March 31, 2015. Relevant clinical and laboratory variables were recorded. Biopsy samples were processed for light microscopy and immunofluorescence in all cases. Histological classification was adapted from the World Health Organization recommendations. The indications for kidney biopsy were nephrotic syndrome in adults in 190 cases, rapidly progressive renal failure in 43, unexplained renal failure in 25, and steroid-resistant nephrotic syndrome in children in 12. The mean age of the patients was 31.48 ± 13.46 years. Male-to-female ratio was 1.87:1. Mean serum creatinine (SCr) of the patients was 2.36 ± 2.07 mg/dL. Primary glomerulonephritis accounted for 88.89% of cases (240) while secondary glomerulonephritis accounted for 7.40% of total cases (20). Interstitial disease accounted for 1.5% and vascular disease for 2.2%. The most common lesion among primary glomerulonephritis was focal segmental glomerulosclerosis (FSGS) (31.11%) followed by diffuse proliferative glomerulonephritis (DPGN) (13.33%) and membranous glomerulonephritis (MGN) (12.59%). Among secondary glomerulonephritis, lupus nephritis was the most common (5.56%). In patients with SCr 1.4 mg/dL or less (n = 131), FSGS was the most common histology (17.26%) followed by MGN (23.66%) and minimal change disease (7.63%). Whereas, in patients with SCr more than 1.4 mg/dL (n = 139), DPGN was the most common diagnosis (23.74%) followed by FSGS (17.26%) and IgAN (12.23%). Fourteen patients (5.2%) had one or more episode of gross hematuria, three of whom required blood transfusion. The overall FSGS was the most common lesion seen. When we consider only patients with deranged renal function, DPGN was the most common histopathological lesion. The reason for disproportionate high incidence for DPGN is not clear and requires further research.

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