Skip to content
Triangle logo TriangleGet started
← Full study record

NCT04281875 · OUTCOME

Postoperative Hypoparathyroidism/Hypocalcemia (Permanent)

Assessing Benefits of NIRAF Detection for Identifying Parathyroid Glands During Total Thyroidectomy. · Source last updated 2024-10-17

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
6 months after total thyroidectomy

What was measured

If blood calcium has not normalized at 1st postsurgical clinical visit, total calcium level and/or PTH is subsequently measured as necessary. Patient is defined to have permanent hypoparathyroidism if PTH \< 16 pg/mL and/or activated Vitamin D is required to be symptom free at or after the 6th postoperative month.

Analysis population: Only participants with at least 6-months of follow-up were included in this analysis. The majority of follow-ups for thyroid surgery occured nat 5-14 days post-operation and most people do not return for longer follow-up unless they have on-going abnormal labs after that mark.

Groups in this outcome

NIRAF Detection Technology +

Parathyroid gland identification will be performed with PTeye using NIRAF detection technology as an adjunctive tool in patients who undergo total thyroidectomy (TTx) with or without lymph node dissection (LND). NIRAF 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). After 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.

NIRAF Detection Technology -

Parathyroid gland identification will be performed with the naked eye of the surgeon without using PTeye - NIRAF detection technology in patients who undergo total thyroidectomy (TTx) with or without lymph node dissection (LND).

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
NIRAF Detection Technology +3
NIRAF Detection Technology -5

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
NIRAF Detection Technology +0Not reportedNot reportedNot reportedNot reported
NIRAF Detection Technology -0Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        0
denoms
  1. counts
    1. group Id
      OG000
      value
      3
    2. group Id
      OG001
      value
      5
    units
    Participants
description
If blood calcium has not normalized at 1st postsurgical clinical visit, total calcium level and/or PTH is subsequently measured as necessary. Patient is defined to have permanent hypoparathyroidism if PTH \< 16 pg/mL and/or activated Vitamin D is required to be symptom free at or after the 6th postoperative month.
groups
  1. description
    Parathyroid gland identification will be performed with PTeye using NIRAF detection technology as an adjunctive tool in patients who undergo total thyroidectomy (TTx) with or without lymph node dissection (LND). NIRAF 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). After 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 +
  2. description
    Parathyroid gland identification will be performed with the naked eye of the surgeon without using PTeye - NIRAF detection technology in patients who undergo total thyroidectomy (TTx) with or without lymph node dissection (LND).
    id
    OG001
    title
    NIRAF Detection Technology -
param Type
COUNT_OF_PARTICIPANTS
population Description
Only participants with at least 6-months of follow-up were included in this analysis. The majority of follow-ups for thyroid surgery occured nat 5-14 days post-operation and most people do not return for longer follow-up unless they have on-going abnormal labs after that mark.
reporting Status
POSTED
time Frame
6 months after total thyroidectomy
title
Postoperative Hypoparathyroidism/Hypocalcemia (Permanent)
type
SECONDARY
unit Of Measure
Participants

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice