Omission of Intact Parathyroid Hormone Testing During Surgery in Treating Patients With Primary Hyperparathyroidism

Exclusion Criteria

• •Patient has recurrent hyperparathyroidism
• •4D CT positive for multiple gland disease
• •Patient has inability to tolerate 4D CT scan (for example; contrast intravenous (IV) allergy, claustrophobia, renal disease)
• •Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
• •Pregnant or nursing female subjects; may be determined in the preoperative evaluation
• •Unwilling or unable to follow protocol requirements
• •Any condition which in the investigator's opinion deems the subject an unsuitable candidate to undergo observational study (may also include preoperative testing results including electrocardiography \[EKG\], chest x-ray, or pulmonary function tests that preclude a wide excision in the operating room)