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Autosomal Dominant Hypocalcemia: Symptoms and Care
Autosomal Dominant Hypocalcemia (ADH) is a genetic disorder that affects how the body regulates calcium levels. In individuals with ADH, their bodies have difficulty maintaining proper levels of calcium in the blood, leading to potential health implications. This imbalance can impact various bodily functions and processes that rely on calcium, potentially affecting overall health and well-being.
What are the Symptoms of Autosomal Dominant Hypocalcemia
Autosomal Dominant Hypocalcemia typically presents with various symptoms related to low levels of calcium in the body.
- Muscle cramps
- Tingling sensation in the hands and feet
- Seizures
- Fatigue
- Irritability
- Abnormal heart rhythms
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Get Second OpinionCauses of Autosomal Dominant Hypocalcemia
Autosomal Dominant Hypocalcemia is primarily caused by genetic mutations affecting the calcium-sensing receptor in the parathyroid gland.
Causes of Autosomal Dominant Hypocalcemia:
- Mutations in the CASR gene
- Inherited genetic condition
- Autosomal dominant inheritance pattern
Types of Autosomal Dominant Hypocalcemia
Autosomal Dominant Hypocalcemia can present in different forms, each characterized by specific symptoms and severity levels.
- Type 1 Autosomal Dominant Hypocalcemia: Caused by mutations in the CASR gene, leading to impaired calcium sensing in the parathyroid glands.
- Type 2 Autosomal Dominant Hypocalcemia: Associated with mutations in the GNA11 gene, affecting calcium regulation in the kidneys and bone.
- Type 3 Autosomal Dominant Hypocalcemia: Linked to mutations in the AP2S1 gene, disrupting parathyroid hormone secretion and calcium homeostasis.
- Type 4 Autosomal Dominant Hypocalcemia: Caused by mutations in the GNA11 gene, resulting in abnormal calcium signaling and low blood calcium levels.
- Type 5 Autosomal Dominant Hypocalcemia: Rare subtype with specific genetic mutations affecting calcium metabolism but with less defined characteristics compared to other types.
Risk Factors
Autosomal Dominant Hypocalcemia risk factors include a family history of the condition, certain genetic mutations, and disorders affecting the parathyroid glands.
- Family history of Autosomal Dominant Hypocalcemia
- Mutations in the CASR gene
- Female gender (more commonly affected)
- Age (typically presents in early adulthood)
- Pregnancy
- Postpartum period
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Diagnosis of Autosomal Dominant Hypocalcemia
Autosomal Dominant Hypocalcemia is typically diagnosed through a combination of clinical symptoms, family history, and laboratory tests to assess calcium levels in the blood.
- Genetic testing
- Blood tests to measure calcium and parathyroid hormone levels
- Urine tests to assess calcium excretion
- Imaging studies like Xrays or CT scans to evaluate bone health and kidney stones
- Electrocardiogram (ECG) to monitor heart function
Treatment for Autosomal Dominant Hypocalcemia
Autosomal Dominant Hypocalcemia is typically managed by controlling calcium levels through various treatment approaches.
Calcium and Vitamin D Supplementation:
- Providing extra calcium and vitamin D helps maintain normal calcium levels in the body, addressing hypocalcemia symptoms.
Calcitriol (active form of vitamin D) Therapy:
- Calcitriol helps the body absorb calcium from the diet and supplements, aiding in the management of hypocalcemia.
Parathyroid Hormone (PTH) Replacement Therapy:
- PTH replacement therapy may be considered in severe cases to regulate calcium levels in the blood.
Thiazide Diuretics:
- Thiazide diuretics can help reduce urinary calcium excretion, thus increasing overall calcium levels in the body.
Avoiding HighPhosphate Foods:
- Limiting foods high in phosphate can prevent excess calcium binding, aiding in the management of autosomal dominant hypocalcemia.
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040-68334455Frequently Asked Questions
What is Autosomal Dominant Hypocalcemia?
Autosomal Dominant Hypocalcemia is a rare genetic disorder that causes low levels of calcium in the blood due to mutations in the calcium-sensing receptor gene.
What are the symptoms of Autosomal Dominant Hypocalcemia?
Symptoms may include muscle cramps, numbness, tingling, seizures, and abnormal heart rhythms due to low calcium levels in the blood.
How is Autosomal Dominant Hypocalcemia diagnosed?
Diagnosis involves blood tests to measure calcium levels, genetic testing to identify mutations in the calcium-sensing receptor gene, and imaging studies to assess bone health.
What are the treatment options for Autosomal Dominant Hypocalcemia?
Treatment often involves calcium and vitamin D supplements to maintain normal blood calcium levels. In severe cases, medications that affect calcium levels may be prescribed.
Is Autosomal Dominant Hypocalcemia a hereditary condition?
Yes, Autosomal Dominant Hypocalcemia is an inherited condition passed down from one affected parent to their children with a 50% chance of inheritance.
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