Clinical practice guidelines for achondroplasia

Takuo Kubota, Masanori Adachi, Taichi Kitaoka, Kosei Hasegawa, Yasuhisa Ohata, Makoto Fujiwara, Toshimi Michigami, Hiroshi Mochizuki, Keiichi Ozono

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Achondroplasia (ACH) is a skeletal dysplasia that presents with limb shortening, short stature, and characteristic facial configuration. ACH is caused by mutations of the FGFR3 gene, leading to constantly activated FGFR3 and activation of its downstream intracellular signaling pathway. This results in the suppression of chondrocyte differentiation and proliferation, which in turn impairs endochondral ossification and causes short-limb short stature. ACH also causes characteristic clinical symptoms, including foramen magnum narrowing, ventricular enlargement, sleep apnea, upper airway stenosis, otitis media, a narrow thorax, spinal canal stenosis, spinal kyphosis, and deformities of the lower extremities. Although outside Japan, papers on health supervision are available, they are based on reports and questionnaire survey results. Considering the scarcity of high levels of evidence and clinical guidelines for patients with ACH, clinical practical guidelines have been developed to assist both healthcare professionals and patients in making appropriate decisions in specific clinical situations. Eleven clinical questions were established and a systematic literature search was conducted using PubMed/MEDLINE. Evidence-based recommendations were developed, and the guidelines describe the recommendations related to the clinical management of ACH. We anticipate that these clinical practice guidelines for ACH will be useful for healthcare professionals and patients alike.

Original languageEnglish
Pages (from-to)25-42
Number of pages18
Journalclinical pediatric endocrinology
Issue number1
Publication statusPublished - 2020


  • Achondroplasia
  • Guideline
  • Systematic review

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology


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