Vocal Cord Movement Assessment Using Airway Ultrasound.

Pre and Post-operative Evaluation of Vocal Cord Movement in Patients Undergoing Thyroid Surgery by Airway Ultrasound Scanning.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02847819

Enrollment

104

Registered

2016-07-28

Start date

2016-07-02

Completion date

2017-08-25

Last updated

2020-06-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vocal Cord Movement Assessment by Airway Ultrasound

Brief summary

Total of 100 patients are included in this is a prospective observational study to evaluate the role of airway ultrasound (USG) in assessing vocal cord mobility in patients undergoing thyroid surgery. patients will be scanned preoperatively by airway ultrasound which will be compared to post operative ultrasound scans.

Detailed description

All 100 patients between age groups of 15-70 years, will be scanned pre-operatively to see vocal cord mobility as a reference value. A proper acoustic window is mandatory for optimal visualization of laryngeal structures. 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, when both false vocal cords are visible (score1-2), along with false cord when both arytenoids are visible scored good (score3-4) and if single or both true vocal cords are visible then scored as very good(score5-6). After the surgery the same patient will be scanned again for vocal cord mobility at 4hours of extubation . Any change in mobility will be recorded. If any change will be observed, direct laryngoscopy (DL) will be done to confirm the diagnosis. Any complication in the post-operative period will be recorded.

Interventions

DEVICEairway ultrasound for vocal cords movement assessment.

Glottic aperture will be scanned using 7.5 megahertz (MHz) linear transducer portable ultrasound machine. after getting the best acoustic window, true, false vocal cords arytenoid movements will be visualized. Individual cord will be focused and doppler velocity will be measured for both the cords.

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

17 Years to 70 Years

Healthy volunteers

Inclusion criteria

* patients undergoing thyroid surgery between specified age limits.

Exclusion criteria

* Retro sternal goiters.

Design outcomes

Primary

Measure	Time frame
Objective confirmation of vocal cords movement	pre operatively and at 4 hours after extubation

Secondary

Measure	Time frame
Comparison of preoperative doppler velocity with post operative doppler velocity.	At 4 hours after extubation.

Countries

India

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026