Vocal Evaluation of Children with Congenital Hypothyroidism

Vocal Characteristics of Children With Short Stature Before and After Growth Hormone Treatment

OBJECTIVE

To evaluate the vocal characteristics of children with short stature before and 12 months after growth hormone treatment.

MATERIAL AND METHODS

This analytical, observational cohort study included 23 children (age 5-11 years) diagnosed with short stature. Children in the short stature group (SSG) were matched (1:1) for age and sex with children with normal growth (normal stature group; NSG). Participants in the SSG underwent assessments before and 12 months after growth hormone treatment, while those in the NSG underwent the same assessments at baseline and 12 months. The assessments included evaluation of (A) vocal characteristics (history, vocal self-assessment, auditory-perceptual evaluation, and acoustic analysis), (B) anthropometry, (C) bone age, and (D) measurement of insulin-like growth factor-1 (IGF-1) levels.

RESULTS

Children in the SSG had more vocal complaints (P = 0.026) than those in the NSG. The groups were similar in terms of vocal self-assessment and auditory-perceptual evaluation (P = nonsignificant). Results of acoustic analysis were also similar for fundamental frequency (F 0) and perturbation measures (P for both = nonsignificant). F 0 and speech frequency decreased significantly at 12 months in both groups. F1 values were higher at 12 months in the NSG, while F2 values were significantly higher in the baseline evaluation in boys in the SSG. Children in the SSG compared with those in the NSG presented a greater increase in height measurements at 12 months, although the anthropometric means were lower in both evaluations (P < 0.001).

CONCLUSION

Vocal characteristics in children with short stature before and after treatment with growth hormone are comparable to those in children with normal growth.

Auditory-perceptual evaluation of voice: comparing different speech tasks to identify children with and without laryngeal lesions

PURPOSE

To compare the vowel emission and number counting tasks in perceptual-auditory differentiation among children with and without laryngeal lesions.

METHODS

Observational, analytical, and cross-sectional methods were used. Medical records of 44 children were selected from a database of an otorhinolaryngology service at a University Hospital and they were divided into groups: without laryngeal lesion (WOLL), and with laryngeal lesion (WLL), with 33 and 11 children. For the auditory-perceptual evaluation, the vocal samples were separated according to the type of task. They were analyzed separately by a judge who analyzed the general degree of vocal deviation and assessed whether the child would pass or fail in the face of a screening situation.

RESULTS

There was a difference between the WOLL and WLL groups in terms of the overall degree of vocal deviation for the task of number counting, with a predominance of mild deviations in WOLL and moderate in WLL. In the screening, there was a difference between the groups during the number counting task, with more failures in the WLL. The groups were similar in the sustained vowel task, both in terms of the overall degree of vocal deviation and the vocal screening. Most children in the WLL failed in both tasks during vocal screening compared to the children in the WOLL who, in general, failed in only one task.

CONCLUSION

The task of number counting contributes to the auditory differentiation in children with and without laryngeal lesion, by identifying deviations of greater intensity in children with laryngeal lesion.

Auditory-perceptual evaluation of voice: comparing different speech tasks to identify children with and without laryngeal lesions

ABSTRACT Purpose To compare the vowel emission and number counting tasks in perceptual-auditory differentiation among children with and without laryngeal lesions. Methods Observational, analytical, and cross-sectional methods were used. Medical records of 44 children were selected from a database of an otorhinolaryngology service at a University Hospital and they were divided into groups: without laryngeal lesion (WOLL), and with laryngeal lesion (WLL), with 33 and 11 children. For the auditory-perceptual evaluation, the vocal samples were separated according to the type of task. They were analyzed separately by a judge who analyzed the general degree of vocal deviation and assessed whether the child would pass or fail in the face of a screening situation. Results There was a difference between the WOLL and WLL groups in terms of the overall degree of vocal deviation for the task of number counting, with a predominance of mild deviations in WOLL and moderate in WLL. In the screening, there was a difference between the groups during the number counting task, with more failures in the WLL. The groups were similar in the sustained vowel task, both in terms of the overall degree of vocal deviation and the vocal screening. Most children in the WLL failed in both tasks during vocal screening compared to the children in the WOLL who, in general, failed in only one task. Conclusion The task of number counting contributes to the auditory differentiation in children with and without laryngeal lesion, by identifying deviations of greater intensity in children with laryngeal lesion.

Pubertal development and adult height in patients with congenital hypothyroidism detected by neonatal screening in southern Brazil

Objectives Adequate treatment of congenital hypothyroidism (CH) is required for normal growth and sexual development. To evaluate pubertal development in patients with permanent CH detected by a statewide Neonatal Screening Program of Paraná and, secondly, to evaluate adult height (AH) in a subgroup of patients. Methods Clinical, laboratory, and auxological data obtained from medical records of 174 patients (123 girls). Results Median chronological age (CA) at treatment initiation was 24 days, and mean initial levothyroxine dose was 11.7 ± 1.9 μg/kg/day; mean CA at puberty onset was 11.5 ± 1.3 years (boys) and 9.7 ± 1.2 years (girls); mean CA in girls who underwent menarche (n=81) was 12.1 ± 1.1 years. Thyroid-stimulating hormone (TSH) values above the normal range were observed in 36.4% of the boys and 32.7% of the girls on puberty onset, and in 44.6% around menarche. Among 15 boys and 66 girls who had reached the AH, the median height z-score value was significantly greater than the target height (TH) z-score value in boys (p=0.01) and in girls (p<0.001). Boys with normal TSH values at puberty onset had greater mean AH z-score compared with boys with TSH values above the normal range (p=0.04). Conclusions In this group, pubertal development in girls with CH was not different from that reported in healthy girls in the general Brazilian population. Boys with higher TSH at puberty onset may have an increased risk of not reaching their potential height compared with those with normal TSH during this period. In a subgroup who attained AH, the median AH z-score was greater than the median TH z-score.

The Effect of Parental Smoking on Voice-Related Quality of Life in the Pediatric Population

OBJECTIVES

Exposure to cigarette smoke has significant effects on the respiratory mucosa. However, little is known about the effects of household smoke exposure on children's voice-related quality of life. The aim of this study was to elucidate the effect of parental smoking (PS) on voice-related quality of life in the pediatric population.

SUBJECTS AND METHODS

The Pediatric Voice-related Quality of Life (PVRQoL) instrument was administered to the parents of 104 healthy children without any known voice disorder. The children were evaluated in two groups. The first group of children had no PS history and no household smoke exposure (non-PS group), in the second group, at least one parent of the child consumed tobacco products in the house (PS group). Social emotional and physical functional subdomains of the PVRQoL were also calculated.

RESULTS

A total of 104 surveys were analyzed. The overall percentage of dysphonia in the PS group was 23.6%, whereas it was 6.1% in the non-PS group. The mean PVRQoL scores were 89.1 (±13.8) in the PS group and 97.7 (±4.7) in the non-PS group (P < 0.001). The mean physical functional-PVRQoL score was 35.4 (±7.2) in the PS group and 39.0 (±6.0) in the non-PS group. The mean social emotional-PVRQoL scores were 51.2 (±9.3) in the PS group and 57.2 (±5.6) in the non-PS group. The overall voice quality was significantly lower in the PS group than in the non-PS group.

CONCLUSION

Exposure to PS has negative effects on voice-related quality of life in children that cannot be underestimated. Parents should be informed about the detrimental effects of passive smoking on the voice quality of their children. Inclusion of items in pediatric voice surveys about PS that lead to dysphonia would be suggested.

Development and validation of the protocol for the evaluation of voice in patients with hearing impairment (PEV-SHI)

Introduction

The voice of individuals with hearing impairment has been widely described, and can be compromised in all levels of the phonatory system.

Objective

To develop and validate an instrument for evaluating the voice of this population.

Methods

The instrument underwent the validation steps suggested by the Scientific Advisory Committee of the Medical Outcomes Trust. The study sample consisted of seventy-eight Brazilian people with cochlear implants (experimental group) and 78 individuals with normal hearing (control group), divided in groups by age range — children from 3 to 5 years; children from 6 to 10 years and adults from 18 to 46 years. The study sample participated in a voice recording of the sustained vowel /a/, connected speech and spontaneous conversation, in which three voice specialists rated using the proposed instrument. It consists of visual-analog scales of suprasegmental aspects, respiratory-phonatory coordination, resonance, phonation, additional parameters and general vocal perception.

Results

Evaluation by an expert committee and a pilot test established content validity. Reliability measures showed excellent test-retest reproducibility for the majority of the parameters. Analysis with the ROC curve showed that perceptual evaluation with the sustained vowel did not strongly differentiate individuals with cochlear implants from those with normal hearing, and the parameter “speech rate” did not differentiate the groups at all. For the connected speech and spontaneous conversation, the majority of the parameters differentiated the experimental group from the control group with an area under the curve ≥0.7. The cutoff values with maximum specificity and sensitivity were 30.5 for mild, 49.0 for moderate and 69.5 for intense deviation.

Conclusions

The protocol for the evaluation of voice in subjects with hearing impairment, PEV-SHI, is a reliable and useful tool for assessing the particularities of the voice of individuals with hearing impairment treated with cochlear implants and can be used in research and clinical settings to standardize evaluation and facilitate information exchange among services.