IgA Nephropathy in Salvador, Brazil. Clinical and laboratory presentation at diagnosis.
J Bras Nefrol 2018;
40:242-247. [PMID:
29782630 PMCID:
PMC6533954 DOI:
10.1590/2175-8239-jbn-3851]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 08/23/2017] [Indexed: 11/22/2022] Open
Abstract
Introduction:
IgA nephropathy (IgAN) is the most prevalent primary glomerulopathy in the
world, but great variation is reported in different countries. In Brazil,
the reported prevalence is high in the Southeastern States and low in
Salvador, Bahia State, Brazil.
Objectives:
This study investigated the clinical and histological patterns of patients
with IgAN in Salvador, Brazil.
Methods:
This is a descriptive study that included all patients with a diagnosis of
IgAN performed in native kidney biopsies collected from referral nephrology
services of public hospitals in Salvador between 2010 and 2015. Results:
Thirty-two cases of IgAN were identified, corresponding to 6% of primary
glomerulopathies. There was a slight male predominance (56%) and the median
age was 30 [22-40] years. Hematuria was present in 79%, non-nephrotic
proteinuria was present in 61%, and hypertension was present in 69% of
patients. Segmental sclerosis (S1 lesions) was present in 81% of cases, and
chronic tubulo-interstitial lesions (T1 and T2 lesions) were present in 44%
of cases. Patients with M1 and T2 MEST-C scores exhibited higher serum urea
and creatinine than other patients.
Conclusion:
The prevalence of IgAN was lower in Salvador than other regions of Brazil.
Chronic histological lesions and laboratory markers of severe disease were
frequent. M1 and T2 MEST-C scores were correlated with markers of renal
dysfunction.
Collapse