Objective: To analyze the correlation between clinical and video laryngoscopy findings for 89 patients with bilateral vocal fold immobility (BVFI), unilateral vocal fold immobility (UVFI), and healthy controls by quantitative analysis of normalized laryngeal outlet (NLO), bowing index (BI), and supraglottic compression (SGC).
Methods: Laryngoscope pictures were taken by two reviewers, and all pictures were standardized by scaling and calibrating to the same width and height in Image J. Three reviewers used quantitative measures to calculate BI, NLO, and SGC in Image J. We assessed reliability for each measurement by two-factor analysis of variance (ANOVA) without replication to calculate the interclass correlation coefficient. Analysis was broken down for each measurement in each group of interest by using a one-way test. The total glottic area was obtained by calculating the normalized glottal gap area from each image of maximum glottal closure during phonation.
Results: Overall reliability of all the measurements was 0.69 (IQ 0.58-0.83). Mean NLO from UVFI, BVFI, and control groups differed significantly. There was no significant difference between control and BVFI. The total glottic area did not consistently predict normalized laryngeal outlet values. Mean normalized laryngeal outlet values of UVFI and BVFI were significantly smaller in the BVFI groups compared with controls and UVFI. BI values consistently predicted total glottic area in the BVFI group. Static SGC measurement did not predict a difference between groups.
Conclusion: This is a reliable novel technique, which can be utilized in clinical settings. These measurements have clinical relevance for managing voice disorders. NLO is the most accurate measurement correlating with glottal incompetence. BI findings are sufficiently specific to identify between UVFI and BVFI.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jvoice.2023.03.020 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Short-Term Effects of Semi-Occluded Vocal Tract Therapy on the Phonation of Children With Vocal Fold Nodules: A Randomized Controlled Trial.
J Speech Lang Hear Res
January 2025
Center for Speech and Language Sciences, Department of Rehabilitation Sciences, Ghent University, Belgium.
Purpose: The aim was to determine and compare the short-term effects of two intensive semi-occluded vocal tract (SOVT) programs, "straw phonation" (SP) and "resonant voice therapy" (RVT), on the phonation of children with vocal fold nodules.
Method: A pretest-posttest randomized controlled study design was used. Thirty children aged 6-12 years were randomly assigned to the SP group ( = 11), RVT group ( = 11), or control group receiving indirect treatment ( = 8) for their voice problems.
EC and EC of Remifentanil for Inhibiting Bronchoscopy Responses in Elderly Patients During Fiberoptic Bronchoscopy Under Ciprofol Sedation: An Up-and-Down Sequential Allocation Trial.
Drug Des Devel Ther
January 2025
Department of Anesthesiology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.
Article Synopsis
- The study examines the necessary dose of remifentanil to suppress cough during fiberoptic bronchoscopy under ciprofol sedation in elderly patients.
- The research involved 39 patients, revealing that males require a higher effective concentration (3.25 ng/mL) of remifentanil compared to females (2.25 ng/mL) to manage responses during the procedure.
- Overall, findings suggest gender differences in medication dosage requirements for effective cough suppression during bronchoscopy while maintaining normal breathing.
Cepstral Peak Prominence: A Valuable Measure of Voice Outcome Severity in Patients With Unilateral Vocal Fold Paralysis.
J Voice
January 2025
Department of Otolaryngology Head and Neck Surgery, Mackay Memorial Hospital, Taipei, Taiwan; School of Medicine, Mackay Medical College, New Taipei City, Taiwan; Department of Audiology and Speech Language Pathology, Mackay Medical College, New Taipei City, Taiwan. Electronic address:
Objectives: This study investigated the relationship between the position of the paralyzed vocal fold and voice quality in patients with unilateral vocal fold paralysis (UVFP) and identified a reliable acoustic analysis tool to enhance the accuracy of voice quality assessments in this population.
Methods: A retrospective case-control study was conducted with 70 patients with UVFP diagnosed at Mackay Memorial Hospital. Acoustic features-jitter, shimmer, the harmonic-to-noise ratio (HNR), and the cepstral peak prominence smoothed (CPPs)-were analyzed using the Praat software.
Anatomical Study of the Larynx With Implications for Medialization Thyroplasty.
J Voice
January 2025
ENT Department, Valencia University General Hospital, Valencia, Spain; Medicine School of Valencia, University of Valencia, Valencia, Spain.
Objetives: Montgomery medialization thyroplasty involves fitting a silicone prosthesis in the thyroid cartilage according to gender-based placement criteria. This standardized procedure can lead in some cases to suboptimal results. The aim of this study is to identify individual anatomical differences between same-gender patients that could explain the occasional failures.
View Article and Find Full Text PDFAmniotic Fluid as a Potential Treatment for Vocal Fold Scar in a Rabbit Model.
J Voice
January 2025
Department of Otolaryngology - Head and Neck Surgery, University of Utah, Salt Lake City, UT; Department of Surgery, University Utah, Salt Lake City, UT.
Objectives/hypothesis: Vocal fold (VF) injury and chronic inflammation can progress to scarring, which is notoriously difficult to treat. Human amniotic fluid (AF) has potential for VF wound healing in a rabbit model, and we hypothesized that AF would demonstrate wound healing properties superior to hyaluronic acid (HA) over time.
Study Design: Randomized, controlled trial.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!