Living with Neonatal severe primary hyperparathyroidism
A rare inherited condition with very high blood calcium from birth, caused by overactive parathyroid glands, affecting bones and muscle tone.
Understanding Neonatal severe primary hyperparathyroidism
It is linked to major hyperparathyroidism, which means overactive parathyroid glands. Features can include weak bones with repeated fractures, low muscle tone, a narrow chest, and an enlarged liver and spleen. Signs start in the newborn period.
Signs & symptoms
Symptoms vary from person to person. GARD lists these among the most common:
- Very high blood calcium from birth
- Low muscle tone (hypotonia)
- Repeated bone fractures
- Narrow chest
- Short stature
- Enlarged liver and spleen
Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.
Diagnosis
- 1Talk with your doctor
Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.
- 2See a specialist
Specialists who may be involved include bone and joint specialists, genetic specialists and hormone specialists.
- 3Consider genetic testing
Changes in CASR are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.
Care & treatment
- Care team
- Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists); Hormone specialists (endocrinologists)
- Expert care
- Ask about multidisciplinary care centers for rare conditions
- Treatment
- GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
- Research
- Clinical trials and observational studies may be options. See the research section below.
General information, not medical advice. Your care team makes the decisions.
Everyday life
Living with a rare condition is easier with support.
- Connect with rare disease patient organizations for support
- Keep notes on symptoms, changes and questions for appointments
- Ask about patient registries that help research
- Look into financial aid and travel resources for care visits
Quick facts
GARD lists changes in the CASR gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).
Also known as: hyperparathyroidism, neonatal; nshpt
Patient organizations
Rare-disease groups that can help
- Global GenesRare Diseases · United States
- National Organization for Rare DisordersRare Diseases · United States
- Genetic AllianceRare Diseases · United States
- RARE FoundationRare Diseases · United States
You are more than your diagnosis
Perspectives from people navigating life with Neonatal severe primary hyperparathyroidism.
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