hormonal and metabolic disorders
Hypoparathyroidism
Postoperative hypoparathyroidism
Postoperative hypoparathyroidism is a common and usually temporary condition that occurs after partial removal of the thyroid gland (subtotal thyroidectomy). Permanent hypoparathyroidism occurs after less than about 3% of subtotal thyroidectomies. People usually develop Hypocalcemia (Low Level of Calcium in the Blood) (low calcium level in the blood) about 24 to 48 hours after surgery, but hypocalcemia may occur months or years later. PTH deficiency is more common after complete removal of the thyroid gland (such as to treat thyroid cancer) or after surgery to remove overactive parathyroid glands. Even if all the parathyroid glands are not removed or a small piece of normal gland is reimplanted in a muscle (subtotal parathyroidectomy), severe hypocalcemia may occur. Risk factors for severe hypocalcemia after subtotal parathyroidectomy include High level of calcium in the blood before surgery Removal of a large Parathyroid Tumors (noncancerous tumor) Chronic Kidney Disease None Vitamin D Deficiency None 