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Correlation of vocal fold nodule size in children and perceptual assessment of voice quality
Roger C Nuss1, Jessica Ward, Lin Huang
1Dept of Otolaryngology and Communication Enhancement, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02115, USA.
Insights
Pediatric vocal fold nodule size significantly impacts voice quality. Larger nodules correlate with increased severity, roughness, strain, and pitch issues in children.
Area of Science:
- Pediatric Otolaryngology
- Speech-Language Pathology
- Voice Science
Background:
- Vocal fold nodules are common in children, affecting voice quality.
- Understanding the relationship between nodule size and perceptual voice characteristics is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the correlation between pediatric vocal fold nodule size and auditory-perceptual voice quality ratings.
- To determine if nodule size predicts specific voice disturbances in children.
Main Methods:
- Retrospective study of 145 children diagnosed with vocal fold nodules.
- Vocal fold nodule size assessed using a validated scale.
- Voice quality evaluated using the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) scale.
Main Results:
- A significant relationship (p < 0.05) was found between nodule size and voice disturbance severity, roughness, strain, pitch, and loudness.
- Increased nodule size correlated with higher perceptual scores for most voice qualities.
- Patient age was also a significant factor in overall severity and roughness.
Conclusions:
- Pediatric vocal fold nodule size is strongly correlated with the severity of voice disturbance and perceptual voice qualities.
- Findings suggest a potential causal link between nodule size and voice impairment in children.
- Nodule size is an important clinical indicator for voice problems in pediatric patients.
Objectives:
We examined the relationship between the size of vocal fold nodules and perceptual rating of voice quality in children.
Methods:
We carried out an Institutional Review Board-approved retrospective study in a voice clinic within a tertiary-care pediatric medical center. We studied children seen between 2000 and 2009 with a primary diagnosis of vocal fold nodules as the cause of their voice disturbance. Pediatric vocal fold nodule size was rated with a published validated scale, and voice quality was rated on the Consensus Auditory-Perceptual Evaluation of Voice scale.
Results:
One hundred forty-five patients met the inclusion criteria. Small nodules were noted in 23% of patients, medium nodules in 39%, and large nodules in 37%. Univariate and multivariate analyses demonstrated a statistically significant relationship (p < 0.05) between vocal fold nodule size and rated perceptual qualities of overall severity of voice disturbance, roughness, strain, pitch, and loudness. With the exception of loudness, as vocal fold nodule size increased, the mean value of perceptual characteristics became larger. The age of the patient was a significant factor associated with the overall severity of the voice disturbance and roughness.
Conclusions:
The overall severity of a child's voice disturbance and qualities of roughness, strain, pitch, and loudness have a strong correlational relationship with pediatric vocal fold nodule size, which is suggestive of causality.
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