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CompletedNCT02847780Updated Jun 17, 2020

Comparison of Two Technique for Assessment of Vocal Cord Movement by C-Mac Videolaryngoscope vs Airway Ultrasound.

An interventional study of Active Comparator :C-Mac Videolaryngoscope and Experimental: Airway ultrasound, in Objective Vocal Cord Movement Assessment by C-Mac Videolaryngoscope Vs Airway Ultrasound in Ca Thyroid, sponsored by Rajiv Gandhi Cancer Institute & Research Center, India. Completed at 1 site in India. Open to participants aged 17 Years to 70 Years. Per ClinicalTrials.gov, last updated 2020-06-17.

Sponsored by Rajiv Gandhi Cancer Institute & Research Center, India · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Non-randomized
Ages
17 Years to 70 Years
Sex
All
01

Study summary

This study is planned to compare C-Mac video-laryngoscope and airway ultrasound as two novel techniques (causing least discomfort to the patients) for the detection of impaired vocal-cord movement after thyroid surgery.

Read the detailed description

In this prospective study 100 patients posted for Thyroid surgery will be included, after explaining the procedure and written informed consent, all included patients in the study will be assessed for vocal cord mobility by C-Mac video laryngoscope (manufactured by KARL STORZ Video Laryngoscopes) followed by airway ultrasonography (USG). Linear transducer (7.5 MHz) will be used for scanning the airway placed at the level of thyroid cartilage with 10-15 degree cephalad tilt so to get proper acoustic window and for optimal visualization of laryngeal structures. C-Mac video laryngoscope will be required for virtual visualization of glottis apertures and vocal cord movement. All patients will be scanned pre-operatively by indirect laryngoscopy to see vocal cord mobility as a reference value. Immediately after extubation the patient will be scanned for vocal cord mobility by videolaryngoscope by first examiner, After oxygenation and stabilization of haemodynamic, ultrasound of airway will be performed to study the vocal cord movement by the other examiner (blinded to the laryngoscopy finding).Visibility of false vocal cords, true vocal cords and arytenoids will be given one point each for one side, maximal score will be 6. According to points the acoustic window scoring for glottis aperture will be graded as fair (score1-2), good(score3-4) and very good(score5-6) Findings of both the examiners will be collected by the primary investigator for data collection and analysis.

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Conditions studied

  • Objective Vocal Cord Movement Assessment by C-Mac Videolaryngoscope Vs Airway Ultrasound in Ca Thyroid

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03

In context

Thyroid Diseases

967 studies on the registry are indexed under Thyroid Diseases; 197 are open to participants now.

This study's enrollment of 100 is above the median of 60 across 544 interventional studies indexed under Thyroid Diseases.

Browse Thyroid Diseases studies →

Lead sponsor

Rajiv Gandhi Cancer Institute & Research Center, India is the lead sponsor of 25 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
17 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patient's undergoing thyroid and parathyroid surgery.

Exclusion criteria

Exclusion Criteria:

  • patients not extubated.
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
Single (Care provider)
Enrollment
100 participants (actual)

Study arms

  • Active comparator
    C-Mac video laryngoscope.

    Active Comparator: C-Mac Videolaryngoscope for vocal cord movement assessment.

    Device: Active Comparator :C-Mac Videolaryngoscope · Device: Experimental: Airway ultrasound,

  • Experimental
    Airway Ultrasound

    Experimental: Airway Ultrasound for vocal cord movement assessment.

    Device: Active Comparator :C-Mac Videolaryngoscope · Device: Experimental: Airway ultrasound,

Interventions

  • DeviceActive Comparator :C-Mac Videolaryngoscope

    Real time assessment of Glottic aperture at the time of extubation by videolaryngoscope

  • DeviceExperimental: Airway ultrasound,

    Airway ultrasound using portable ultrasound machine to assess vocal cords movement.

06

What researchers measure

Primary outcomes

  1. • To determine objective vocal cord mobility by the video laryngoscope and airway ultrasound

    patients vocal cords will be assessed by videolaryngoscope at time of extubation then the cords will be again assessed by airway ultrasound.

    Time frame: At time of extubation.

Secondary outcomes

  1. • To ascertain whether airway ultrasound can be used as a reliable alternative to assess post-operative vocal cord mobility

    After extubation with aseptic precaution patient's airway will be scanned for vocal cord movement assessment.

    Time frame: After extubation and before dressing.

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Study locations

1 site
  • Rajiv Gandhi Cancer Institute & Research center
    Rohini, New Delhi 110085, India
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 17, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02847780
Lead sponsor
Rajiv Gandhi Cancer Institute & Research Center, India
Responsible party
Amit Kumar Mittal (Consultant in-charge, Rajiv Gandhi Cancer Institute & Research Center, India) — Principal investigator
First posted
Jul 28, 2016
Start date
Jul 20, 2016
Primary completion
Jul 19, 2017
Completion
Aug 10, 2017
Last update
Jun 17, 2020

Study contacts

Amit kr Mittal, M.D
principal investigator · Rajiv Gandhi Cancer Institute & Research Centre, Rohini; New Delhi: India 110085.

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2017. You cannot join it, but the record below documents what was studied.

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