Endocrinologist Footnote 1
The endocrinologist manages key impacts of DMD
Endocrine abnormalities in DMD are common and impactful, and include:
Impaired growth
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Growth assessments
Assess height every 6 months until completion of puberty and attainment of final height
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Impaired growth signs
Any of the following:
- Downward crossing of height percentile
- Height velocity of <4 cm/year
- Height <3rd percentile
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Refer to endocrinologist
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Recommended
- Assessment of bone age with left-hand X-ray
- Thyroid function tests
- Coeliac panel
- Growth factors
- Comprehensive metabolic panel
- Complete blood count
To be considered
- Growth hormone stimulation testing
Delayed puberty
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Puberty assessments
Physical assessment of pubertal status by Tanner staging every 6 months, starting by 9 years of age
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Delayed puberty signs
Testicular volume <4 cm Footnote 3 at age 14 years or older
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Refer to endocrinologist
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Recommended
Laboratory assays:
- Luteinising hormone
- Follicle-stimulating hormone
- Testosterone
To be considered
- Assessment of bone age with left-hand X-ray
Adrenal insufficiency
- Endocrinologists should be involved in managing glucocorticoid use, to prevent adrenal insufficiency via appropriate steroid tapering and patient education
- Endocrinologists should assist with the initiation of steroids using the PJ Nicholoff Steroid Protocol