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

Rajiv Gandhi Cancer Institute & Research Center, India

Status: Completed

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

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

Study type: Interventional

Funder types: Other

Identifiers

NCT02847780

505/AN/AKM-03

Details and patient eligibility

About

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.

Full 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.

Enrollment: 100 patients

Sex: All

Ages: 17 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patient's undergoing thyroid and parathyroid surgery.

Exclusion criteria

• patients not extubated.

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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100 participants in 2 patient groups

C-Mac video laryngoscope.

Active Comparator group

Description:

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

Treatment:

Device: Experimental: Airway ultrasound,

Device: Active Comparator :C-Mac Videolaryngoscope

Airway Ultrasound

Experimental group

Description:

Experimental: Airway Ultrasound for vocal cord movement assessment.

Treatment:

Device: Experimental: Airway ultrasound,

Device: Active Comparator :C-Mac Videolaryngoscope