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Ultrasound Prediction For Vocal Cord Dysfunction In Patients Scheduled For Anterior Cervical Spine Surgeries

Vocal Cord Dysfunction Clinical Trial

Official title:
Ultrasound Prediction For Vocal Cord Dysfunction In Patients Scheduled For Anterior Cervical Spine Surgeries: A Prospective Cohort Study

Clinical Trial Summary

• Anterior cervical discectomy and fusion (ACDF) is a highly effective and safe method for spinal cord and cervical root decompression. Vocal cord paralysis secondary to recurrent laryngeal nerve injury is a common complication after ACDF. The incidence reported as high as 22%. The standard technique for vocal cord evaluation and the most commonly used tool is direct laryngoscopy. Laryngoscopy causes patients annoyance and could potentially contribute to poor patient compliance. Ultrasonography is a non-invasive technique that is used as an alternative tool.

Clinical Trial Description

1. Design: A prospective cohort study.

2. Sample size: Assuming that the target population is 240 and positive predictive value of transcutaneous laryngeal ultrasonography is 89.4%. So, the sample size is 91 cases using OPEN Source Epidemiologic Statistics for Public Health (OPENEPI) with confidence interval 95% and power of test is 80%.

All patients underwent transcutaneous laryngeal ultrasonography examination by both anterior and lateral approach of the Vocal Cords (VCs) before the surgery, immediately after extubation, 2 h, 12h, 24 and 48hour postoperatively by an anesthesiologist with an experience of at least three years in ultrasonography scan. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04140799
Study type Observational [Patient Registry]
Source Zagazig University
Contact
Status Completed
Phase
Start date January 16, 2019
Completion date February 15, 2020
View Details
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