Relationship of Preoperative Parathyroid Hormone (PTH) and Ex-Vivo Gamma Counts in Minimally Invasive Parathyroidectomy

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
University of Arkansas Identifier:
First received: February 21, 2012
Last updated: March 9, 2015
Last verified: March 2015
The intent for this study is to do a retrospective chart review of all patients who have undergone minimally invasive parathyroidectomy for primary hyperthyroidism. All data collected will be recorded under assigned identification numbers that will have no association with medical record or hospital numbers. Identifying characteristics will include age and sex. Anonymity will be upheld. The patient/family will not be contacted directly. All information will be obtained from the medical chart. Demographics, location, preoperative PTH levels and intraoperative Ex-Vivo gamma counts, co-morbid conditions, and the outcome based on the hospital notes will be obtained from patients' charts and will be transferred to a secure database. It is our hypothesis that there is a linear relationship between immediate preoperative parathyroid hormone (PTH) levels and Ex-Vivo gamma counts and the aim of this study is to better describe this relationship.

Parathyroid Disease

Study Type: Observational
Study Design: Time Perspective: Retrospective
Official Title: Relationship of Preoperative PTH and Ex-Vivo Gamma Counts in Minimally Invasive Parathyroidectomy

Resource links provided by NLM:

Further study details as provided by University of Arkansas:

Primary Outcome Measures:
  • Retrospective Chart Review [ Time Frame: Retrospective Chart Review ] [ Designated as safety issue: No ]
    The information presented in this report will provide a surgical tool for otolaryngologists to improve the efficiency and efficacy in patients with hyperparathyroid disease.

Estimated Enrollment: 200
Study Start Date: January 2010
Estimated Study Completion Date: December 2015
Estimated Primary Completion Date: December 2015 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years to 90 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
An estimated 200 patient charts will be reviewed.

Inclusion Criteria:

  • Patients must be between the ages of 18 and 90 years old who have documented primary hyperparathyroidism and have undergone minimally invasive parathyroidectomy.

Exclusion Criteria:

  • Patients who have not had both intraoperative parathyroid hormone (PTH) levels and Gamma counts during their parathyroidectomy
  • Patients who have parathyroidectomies for reasons other than primary hyperparathyroidism.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01539486

United States, Arkansas
University of Arkansas for Medical Sciences
Little Rock, Arkansas, United States, 72205
Sponsors and Collaborators
University of Arkansas
Principal Investigator: Brendan Stack, MD University of Arkansas
  More Information

No publications provided

Responsible Party: University of Arkansas Identifier: NCT01539486     History of Changes
Other Study ID Numbers: 112684
Study First Received: February 21, 2012
Last Updated: March 9, 2015
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Parathyroid Diseases
Endocrine System Diseases processed this record on November 25, 2015