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Condition caused by insufficient functioning of the parathyroid gland.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a condition caused by insufficient secretory activity of the parathyroid glands.

Hypoparathyroidism may arise after the removal of the parathyroid glands or after their injury during thyroid surgery. Hypoparathyroidism is accompanied by disorders in calcium metabolism, a disturbance in the assimilability of calcium in the gastrointestinal tract, lowered calcium content in the blood, and deformation of the teeth. The disturbance in calcium metabolism increases the excitability of the nervous system, and an inclination to spasms (tetany) appears. Spasms arise spontaneously or under the influence of provocative factors (for example, muscle strain, overheating, and contusions) in symmetrical groups of muscles (most often of the upper extremities, more rarely of the lower extremities, and even more rarely in the facial and other muscles). Hypoparathyroidism occurs in both latent and manifest forms. The latent form may not be outwardly evident and is manifested only in a fall in temperature of the extremities, paresthesia throughout the body, and spasms. Pregnancy, menstruation, mechanical and thermal irritation, poisoning, and infections can stimulate the transition from latent to manifest hypoparathyroidism. Treatment involves hormonal and vitamin therapy.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
However, in certain cases, hypoparathyroidism may worsen due to the inability of the maternal hypoparathyroid status to overcome fetal calcium requirement [6].
He also testified that he did not know that the patient was hypoparathyroid because the surgeon had not told him.
Patients classified as American Society of Anaesthesiologists (ASA) I and II going for elective surgery between the ages of 18 and 60 years were included Exclusion criteria comprised pregnancy emergency surgery history of muscular disease history of hyperthermia malignant contraindications of succinylcholine patients taking calcium channel blockers or beta blockers hypotension hypoparathyroid and hypocalcaemia.
To avoid adynamic bone disease, sufficient reduction in the amount of hyperfunctioning parathyroid tissue without causing a hypoparathyroid state can be achieved by subtotal (3 1/2-) parathyroidectomy or by total parathyroidectomy (PTX) with immediate or delayed autotransplantation of fresh or cryopreserved parathyroid tissue.