National registry of patients with Fukuyama congenital muscular dystrophy in Japan

Keiko Ishigaki, Chikoto Ihara, Harumasa Nakamura, Madoka Mori-Yoshimura, Kazushi Maruo, Mariko Taniguchi-Ikeda, En Kimura, Terumi Murakami, Takatoshi Sato, Tatsushi Toda, Hisanobu Kaiya, Makiko Osawa

Research output: Contribution to journalArticle

Abstract

Fukuyama congenital muscular dystrophy (FCMD) is the second most common form of muscular dystrophy in the Japanese population and is caused by mutations in the fukutin (FKTN) gene. In 2011, the Japan Muscular Dystrophy Association (JMDA) developed a nationwide registry of genetically confirmed patients with FCMD. We retrospectively reviewed the registry dataset of patients with FCMD to obtain data, including age, sex, developmental milestones, intellectual level, complications, and primary treatments. In total, 207 patients with FCMD (104 boys and 103 girls) were registered by the end of September 2013. Mean patient age at first registration was 8.1 ± 7.8 years (median, 6 years; range, 0–42 years). A homozygous 3-kb founder insertion mutation in the FKTN gene was present in 80% of registrants, whereas 20% had a compound heterozygous mutation. Sixty-nine patients (33%) had febrile seizures and/or epilepsy. Myopia was the most frequently detected abnormality (8.7%), followed by strabismus (5.9%). Overall, 16% of patients required respiratory support and this percentage increased with age. Cardiac dysfunction was detected in 16%, and dysphagia was observed in 22% of patients with FCMD. The FCMD patient registry is useful for clarifying the natural history of FCMD and recruiting patients for clinical trials.

Original languageEnglish
Pages (from-to)885-893
Number of pages9
JournalNeuromuscular Disorders
Volume28
Issue number10
DOIs
Publication statusPublished - 10-2018

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Walker-Warburg Syndrome
Registries
Japan
Muscular Dystrophies
Febrile Seizures
Mutation
Insertional Mutagenesis
Strabismus
Myopia
Deglutition Disorders
Genes
Epilepsy
Clinical Trials

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Neurology
  • Clinical Neurology
  • Genetics(clinical)

Cite this

Ishigaki, K., Ihara, C., Nakamura, H., Mori-Yoshimura, M., Maruo, K., Taniguchi-Ikeda, M., ... Osawa, M. (2018). National registry of patients with Fukuyama congenital muscular dystrophy in Japan. Neuromuscular Disorders, 28(10), 885-893. https://doi.org/10.1016/j.nmd.2018.08.001
Ishigaki, Keiko ; Ihara, Chikoto ; Nakamura, Harumasa ; Mori-Yoshimura, Madoka ; Maruo, Kazushi ; Taniguchi-Ikeda, Mariko ; Kimura, En ; Murakami, Terumi ; Sato, Takatoshi ; Toda, Tatsushi ; Kaiya, Hisanobu ; Osawa, Makiko. / National registry of patients with Fukuyama congenital muscular dystrophy in Japan. In: Neuromuscular Disorders. 2018 ; Vol. 28, No. 10. pp. 885-893.
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Ishigaki, K, Ihara, C, Nakamura, H, Mori-Yoshimura, M, Maruo, K, Taniguchi-Ikeda, M, Kimura, E, Murakami, T, Sato, T, Toda, T, Kaiya, H & Osawa, M 2018, 'National registry of patients with Fukuyama congenital muscular dystrophy in Japan', Neuromuscular Disorders, vol. 28, no. 10, pp. 885-893. https://doi.org/10.1016/j.nmd.2018.08.001

National registry of patients with Fukuyama congenital muscular dystrophy in Japan. / Ishigaki, Keiko; Ihara, Chikoto; Nakamura, Harumasa; Mori-Yoshimura, Madoka; Maruo, Kazushi; Taniguchi-Ikeda, Mariko; Kimura, En; Murakami, Terumi; Sato, Takatoshi; Toda, Tatsushi; Kaiya, Hisanobu; Osawa, Makiko.

In: Neuromuscular Disorders, Vol. 28, No. 10, 10.2018, p. 885-893.

Research output: Contribution to journalArticle

TY - JOUR

T1 - National registry of patients with Fukuyama congenital muscular dystrophy in Japan

AU - Ishigaki, Keiko

AU - Ihara, Chikoto

AU - Nakamura, Harumasa

AU - Mori-Yoshimura, Madoka

AU - Maruo, Kazushi

AU - Taniguchi-Ikeda, Mariko

AU - Kimura, En

AU - Murakami, Terumi

AU - Sato, Takatoshi

AU - Toda, Tatsushi

AU - Kaiya, Hisanobu

AU - Osawa, Makiko

PY - 2018/10

Y1 - 2018/10

N2 - Fukuyama congenital muscular dystrophy (FCMD) is the second most common form of muscular dystrophy in the Japanese population and is caused by mutations in the fukutin (FKTN) gene. In 2011, the Japan Muscular Dystrophy Association (JMDA) developed a nationwide registry of genetically confirmed patients with FCMD. We retrospectively reviewed the registry dataset of patients with FCMD to obtain data, including age, sex, developmental milestones, intellectual level, complications, and primary treatments. In total, 207 patients with FCMD (104 boys and 103 girls) were registered by the end of September 2013. Mean patient age at first registration was 8.1 ± 7.8 years (median, 6 years; range, 0–42 years). A homozygous 3-kb founder insertion mutation in the FKTN gene was present in 80% of registrants, whereas 20% had a compound heterozygous mutation. Sixty-nine patients (33%) had febrile seizures and/or epilepsy. Myopia was the most frequently detected abnormality (8.7%), followed by strabismus (5.9%). Overall, 16% of patients required respiratory support and this percentage increased with age. Cardiac dysfunction was detected in 16%, and dysphagia was observed in 22% of patients with FCMD. The FCMD patient registry is useful for clarifying the natural history of FCMD and recruiting patients for clinical trials.

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