Childhood Kidney Diseases

Korean Society of Pediatric Nephrology (대한소아신장학회)
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Clinical Characteristics and Long-Term Prognosis of Alport Syndrome: A Retrospective Single-Center Study

  • Jang, Hea Min (Department of Pediatrics, Kyungpook National University, School of Medicine) ;
  • Baek, Hee Sun (Department of Pediatrics, Kyungpook National University, School of Medicine) ;
  • Park, Sun-Hee (Department of Internal Medicine, Kyungpook National University, School of Medicine) ;
  • Kim, Yong-Lim (Department of Internal Medicine, Kyungpook National University, School of Medicine) ;
  • Kim, Chan-Duck (Department of Internal Medicine, Kyungpook National University, School of Medicine) ;
  • Jung, Hee-Yeon (Department of Internal Medicine, Kyungpook National University, School of Medicine) ;
  • Cho, Jang-Hee (Department of Internal Medicine, Kyungpook National University, School of Medicine) ;
  • Han, Man Hoon (Department of Pathology, Kyungpook National University, School of Medicine) ;
  • Kim, Yong Jin (Department of Pathology, Kyungpook National University, School of Medicine) ;
  • Cho, Min Hyun (Department of Pediatrics, Kyungpook National University, School of Medicine)
  • Received : 2020.08.10
  • Accepted : 2020.10.04
  • Published : 2020.10.31
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Abstract

Purpose: Alport syndrome (AS) is one of the most common inherited renal diseases caused due to mutations of genes encoding specific proteins of the type IV collagen family, and its major clinical manifestations include progressive renal failure, sensorineural deafness, and ocular abnormalities. We investigated the clinical characteristics and long-term prognosis of AS in Korean pediatric and adult populations. Methods: We conducted a retrospective review of medical records of 33 children and adults who had been diagnosed or treated with AS from 1985 to 2019. Results: The mean age of the 33 patients diagnosed with AS was 16.2±13.6 years, and the male-to-female ratio was 2:1. At the first visit, recurrent gross hematuria was the most common initial symptom. In 10 of 33 patients (30.3%), sensorineural hearing loss (SNHL) was diagnosed, but none had ophthalmic problems. Moreover, 11 of 33 patients (33.3%) had advanced to end-stage renal disease (ESRD), and a significant difference was observed in the age of the patients who progressed to ESRD based on the presence or absence of SNHL (P=0.035). Conclusion: SNHL in AS can be an important prognostic factor for long-term deterioration of renal function. Further investigation is required to confirm the clinical course and the genetic characteristics of AS in Korea through prospective national cohort studies.

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References

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