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Approach to Hypophosphatemic Rickets.

Sarah A Ackah1, Erik A Imel1

  • 1Department of Medicine, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA.

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|August 18, 2022
PubMed
Summary
This summary is machine-generated.

Hypophosphatemic rickets, often genetic, causes lifelong bone issues. Evaluation involves assessing phosphate metabolism, FGF23, and genetic factors for tailored treatments like vitamin D, phosphate salts, or burosumab.

Keywords:
X-linked hypophosphatemiaburosumabfibroblast growth factor 23hypophosphatemiarickets

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Area of Science:

  • Pediatric Endocrinology
  • Metabolic Bone Disease
  • Genetics

Background:

  • Hypophosphatemic rickets presents with skeletal deformities and growth plate abnormalities in early life.
  • Genetic causes, like X-linked hypophosphatemia, lead to persistent hypophosphatemia and osteomalacia.
  • Understanding phosphate metabolism, including fibroblast growth factor 23 (FGF23) and 1,25-dihydroxyvitamin-D (1,25(OH)2D), is key for diagnosis and treatment.

Purpose of the Study:

  • To outline the diagnostic approach for hypophosphatemic rickets.
  • To discuss various treatment strategies based on the underlying etiology.
  • To emphasize the importance of serum phosphorus measurement in suspected rickets or osteomalacia.

Main Methods:

  • Comprehensive clinical evaluation including history, physical examination, and laboratory investigations.
  • Measurement of serum phosphorus levels.
  • Genetic analysis for inherited forms and imaging for severity assessment.

Main Results:

  • Diagnosis relies on a combination of clinical findings, biochemical tests, genetic analysis, and imaging.
  • Treatment is etiology-dependent, ranging from vitamin D and phosphate supplementation to targeted therapies like burosumab for X-linked hypophosphatemia.

Conclusions:

  • Accurate diagnosis of hypophosphatemic rickets requires a multi-faceted approach.
  • Personalized treatment strategies are essential for managing this condition and improving patient outcomes.
  • Further research into phosphate metabolism and FGF23 regulation can refine therapeutic interventions.