If you have hyperparathyroidism, it means that one or more of the parathyroid glands are overactive, resulting in the overproduction of the parathyroid hormone (PTH). Parathyroid hormones in excess can lead to an increase in the calcium levels in the blood (hypercalcemia). A high calcium level can lead to various health problems, which include:
- Weakened bones: Loss of calcium from the bones in the blood result in the weakening of the bone.
- Kidney stones: The small intestine may take up more calcium from the diet, adding to high levels of calcium in the blood. Extra calcium is transported to the kidney resulting in kidney stones.
- Heart disease
- High blood pressure
- Trouble concentrating
- Reduced kidney function, affecting its ability to filter
What are parathyroid glands?
The parathyroid glands are four pea-sized glands located in the neck near the thyroid gland. They produce parathyroid hormone, which helps to control the calcium and phosphorous levels in the body. They are located on the outside borders of the thyroid glands.
The parathyroid glands raise blood calcium levels by:
What causes hyperparathyroidism?
Primary hyperparathyroidism is a type of hyperparathyroidism that starts in at least one of the parathyroid glands. It occurs due to one of the following reasons:
Secondary hyperparathyroidism is a type of hyperparathyroidism that occurs due to low calcium levels in the blood, triggered by certain medical conditions. Secondary hyperparathyroidism may occur due to:
- Low calcium levels in the blood due to chronic kidney disease or some other conditions
- Low levels of Vitamin D that balances the amount of calcium in the blood
- Paraneoplastic syndrome (an accompanying disease because of cancers of other organs) may also be present with elevated PTH levels.
About 100,000 people in the United States develop hyperparathyroidism each year. Women are more commonly affected than men and the risk increases with age.
What are the symptoms of hyperparathyroidism?
Hyperparathyroidism does not manifest any symptoms in the majority of the patients. However, in some, hyperparathyroidism may exhibit the following symptoms:
- Joint pain
- Muscle weakness
- Trouble concentrating
- Loss of appetite
- Increased need for sleep
In severe cases of hyperparathyroidism, the patient may experience:
How is hyperparathyroidism diagnosed?
The physician may order blood tests to check the level of calcium and PTH in the blood. After diagnosis, the physician may conduct the following tests to assess the complications:
- Bone densitometry: It uses a small dose of ionizing radiation to look for reduced bone mineral density.
- Kidney ultrasound: It may be useful to check for kidney stones.
- Imaging tests, such as MRI or CT scan, may be helpful to check for broken bones
- 25-hydroxy-vitamin D blood test to assess the level of Vitamin D
How is hyperparathyroidism treated?
Treatment options include:
- Surgery: It involves removal of the either one or more overactive glands.
- Medication: Cinacalcet is approved for the treatment of primary as well as secondary hyperparathyroidism.
- Dietary supplements: Calcium and Vitamin D supplements need to be consumed lifelong.
- Identify and treat the cancer-causing paraneoplastic syndrome, if any.
- Regular monitoring involves physical examination from time to time, blood tests, and bone density measurements.
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Hyperparathyroidism is a disorder of the parathyroid glands. There are two types of hyperparathyroidism, primary and secondary. When the parathyroid glands produce too much hormone, hyperparathyroidism is the resulting condition. Most cases of hyperparathyroidism have no evident cause. Signs and symptoms of hyperparathyroidism include
- loss of appetite,
- constipation, or
Increased calcium and phosphorous excretion may cause kidney stones. The main treatment of hyperparathyroidism is surgery (parathyroidectomy).
HypoparathyroidismIn hypoparathyroidism, the parathyroid gland does not produce enough parathyroid hormone. Causes of hypoparathyroidism include injury to the parathyroid glands, autoimmune disorder association, or may be present ab birth. Symptoms of hypoparathyroidism include: tingling fingers, toes, and lips, brittle nails, dry, coarse skin, dry hair; memory loss, headaches, severe muscle cramps, cataracts, malformed teeth, and convulsions. Treatment of hypoparathyroidism is to restore the calcium and phosphorus to normal levels in the body.
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