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Secondary hyperparathyroidism is the medical condition of excessive secretion of parathyroid hormone (PTH) by the parathyroid glands in response to hypocalcemia (low blood calcium levels), with resultant hyperplasia of these glands. This disorder is primarily seen in patients with chronic kidney failure.
Hyperparathyroidism is an increase in parathyroid hormone (PTH) levels in the blood. [1] [4] This occurs from a disorder either within the parathyroid glands (primary hyperparathyroidism) or as response to external stimuli (secondary hyperparathyroidism). [1]
Another related condition is called secondary hyperparathyroidism (HPT for short), which is common in patients with chronic kidney disease on dialysis. In secondary HPT, the parathyroid glands make too much parathyroid hormone (PTH) because the kidneys have failed, and the calcium and phosphorus are out of balance.
Renal disease may lead to hyperparathyroidism. When too much calcium is lost from the blood via urination, there is a compensation by the parathyroid, and parathyroid hormone is released. The glands enlarge (hypertrophy) to synthesize more parathyroid hormone. This is known as secondary hyperparathyroidism.
Household pets such as dogs and cats are found to develop hypercalcemia. It is less common in cats, and many feline cases are idiopathic. [29] In dogs, lymphosarcoma, Addison's disease, primary hyperparathyroidism, and chronic kidney failure are the main causes of hypercalcemia, but there are also environmental causes usually unique to indoor ...
Hypothyroidism is classified as either primary, secondary, or tertiary. Primary hypothyroidism is for when the cause is due to an abnormality of the thyroid gland, secondary hypothyroidism is when the cause is decreased thyroid-stimulating hormone levels, and tertiary hypothyroidism is when the cause is an inadequate amount of thyrotropin-releasing hormone being released.
Secondary hyperparathyroidism; T. Tertiary hyperparathyroidism This page was last edited on 2 May 2013, at 05:54 (UTC). Text is ...
Primary hyperparathyroidism (or PHPT) is a medical condition where the parathyroid gland (or a benign tumor within it) produce excess amounts of parathyroid hormone (PTH). The symptoms of the condition relate to the resulting elevated serum calcium ( hypercalcemia ), which can cause digestive symptoms, kidney stones , psychiatric abnormalities ...