{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"1"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"51"},{"groupId":"OG001","value":"50"}],"units":"Participants"}],"description":"Number of patients with repeat PTx procedure performed after the current procedure.","groups":[{"description":"Parathyroid gland identification will be performed with PTeye using NIRAF detection technology as an adjunctive tool in patients who undergo parathyroidectomy (PTx).\n\nNIRAF Detection Technology: Near Infrared Autofluorescence (NIRAF) detection technology or 'PTeye' consists of a disposable fiber-optic probe that emits non-ionizing radiation from a NIR 785 nm laser source, and also transmits the resulting tissue NIRAF to a photo detector. The 785 nm laser source emits a maximum power of 20 mW. The device is FDA cleared for clinical use in general surgeries and dermatological use (Class 2 device).\n\nAfter surgeon identifies a potential parathyroid gland in the surgical field, the surgeon places the fiber-optic probe of PTeye on suspect tissue and presses the device foot-pedal to activate tissue NIRAF measurement. Auditory beep at high frequency with a Detection Ratio \\> 1.2 is interpreted by device as the suspect tissue being positive for parathyroid.","id":"OG000","title":"NIRAF Detection Technology +"},{"description":"Parathyroid gland identification will be performed with the naked eye of the surgeon without using PTeye - NIRAF detection technology in patients who undergo parathyroidectomy (PTx).","id":"OG001","title":"NIRAF Detection Technology -"}],"paramType":"COUNT_OF_PARTICIPANTS","populationDescription":"Nearly all patients attended their first follow-up appointment (5-14 days post-operation), however about 30 patients were lost for long-term follow-up.","reportingStatus":"POSTED","timeFrame":"At 6-months post-operation","title":"Number of Patients Who Have Had Repeat Parathyroidectomy (PTx) Procedure","type":"SECONDARY","unitOfMeasure":"Participants"}