Calcium determination in primary hyperparathyroidism

24-hour urinary calcium in primary hyperparathyroidism.

OBJECTIVE To establish whether urinary and serum calcium levels are correlated in patients with primary hyperparathyroidism (PHPT) and to evaluate related factors including serum levels of parathyroid hormone (PTH) and vitamin D, age, gender and renal function. DESIGN Retrospective review on patients undergoing a parathyroidectomy for PHPT from 2000- 2008. Data collected included: age, sex, p...

Changes in total body calcium content in primary hyperparathyroidism.

1. The change in total body calcium content after surgery for primary hyperparathyroidism was studied in seven patients by whole body neutron activation analysis. Three patients who remained in the uncontrolled state for up to 12 months were also studied by this technique. 2. The technique and its reproducibility are described. Changes in total body calcium greater than f 4 % should be detectab...

Adenoma weight and biochemical parameters in primary hyperparathyroidism

 Abstract Background: Primary hyperparathyroidism is autonomous production of parathyroid hormone. After removal of adenoma, one of the surgeons concern is postoperative hypocalcaemia. There is no precise method to determine if patients have hypocalcaemia postoperatively. The purpose of this study was to determine the relation between parathyroid adenoma weights, postoperative serum calcium and...

The PTH-calcium curve and the set point of calcium in primary and secondary hyperparathyroidism.

BACKGROUND The regulation of PTH secretion by calcium is altered in patients with primary hyperparathyroidism (HPT). A similar abnormality may occur in secondary HPT, but comparisons of PTH secretion in normal subjects and those with secondary HPT have given contrasting results. Differences in baseline serum ionized calcium (ICa) may partly account for these conflicting results. The aim of the ...

Ultrasound in primary hyperparathyroidism