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Published in: CEN Case Reports 4/2020

01-11-2020 | Alport Syndrome | Case Report

Poststreptococcal acute glomerulonephritis can be a risk factor for accelerating kidney dysfunction in Alport syndrome: a case experience

Authors: Yoshinori Araki, Azusa Kawaguchi, Nana Sakakibara, Yoshinobu Nagaoka, Tomohiko Yamamura, Tomoko Horinouchi, China Nagano, Naoya Morisada, Kazumoto Iijima, Kandai Nozu

Published in: CEN Case Reports | Issue 4/2020

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Abstract

Alport syndrome (AS) is a progressive kidney disease. Male cases with X-linked AS (XLAS) are reported to develop end-stage kidney disease (ESKD) at the age of around 20–30 years. One risk factor for developing ESKD at a young age is a genotype of having truncating variants in the COL4A5 gene. However, to date, other such factors have remained unclear. Here, we describe a 15-year-old Japanese boy with XLAS who had a missense variant in the COL4A5 gene. He presented with gross hematuria, severe proteinuria, oliguria, systemic edema, body weight gain, and hypertension after pharyngitis. Blood examination showed kidney dysfunction, hypocomplementemia, and elevated antistreptolysin-O level. We diagnosed him with poststreptococcal acute glomerulonephritis (PSAGN) and he was stopped treatment by lisinopril, and received supportive treatment. However, he showed an unusual clinical course for PSAGN and, consequently, developed ESKD 15 months after the onset of PSAGN without recovery from the kidney dysfunction. This case showed that the onset of PSAGN can be a risk factor for AS patients to develop ESKD at a young age.
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Metadata
Title
Poststreptococcal acute glomerulonephritis can be a risk factor for accelerating kidney dysfunction in Alport syndrome: a case experience
Authors
Yoshinori Araki
Azusa Kawaguchi
Nana Sakakibara
Yoshinobu Nagaoka
Tomohiko Yamamura
Tomoko Horinouchi
China Nagano
Naoya Morisada
Kazumoto Iijima
Kandai Nozu
Publication date
01-11-2020
Publisher
Springer Singapore
Published in
CEN Case Reports / Issue 4/2020
Electronic ISSN: 2192-4449
DOI
https://doi.org/10.1007/s13730-020-00498-2

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