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Study of the Relationship Between Calcium Levels and Intact Parathyroid Hormone (iPTH) in Adults With Repaired or Palliated Conotruncal Cardiac Defects

Heart Defects, Congenital Clinical Trial

Clinical Trial Summary

OBJECTIVES: I. Identify latent hypoparathyroidism in normocalcemic adult survivors with repaired conotruncal cardiac defects, by evaluating parathyroid gland secretory function after induced hypocalcemia.

II. Determine the relationship of parathyroid hormone secretion to microdeletions in the same region of chromosome 22q11 as found in patients with DiGeorge anomaly.

Clinical Trial Description

PROTOCOL OUTLINE:

Patients are given sodium citrate over a 2 hour infusion on day 1. Blood is drawn at times -30, -15, 0, and every 10 minutes thereafter during the infusion. On day 2, patients are given calcium gluconate over a 2 hour infusion. Blood is drawn at times -30, -15, 0, and every 10 minutes thereafter during the infusion. ;

Study Design

Primary Purpose: Screening

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00004361
Study type Observational
Source Office of Rare Diseases (ORD)
Contact
Status Completed
Phase N/A
Start date July 1995
View Details
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