Treatment of velopharyngeal insufficiency in a patient with a submucous cleft palate using a speech aid: the more treatment options, the better the treatment results

Influence of speech aid prosthesis with speech therapy on speech outcomes in adult patients with persisting velopharyngeal insufficiency: A retrospective analysis

STATEMENT OF PROBLEM

Prosthetic intervention with a speech aid prosthesis (SAP) along with speech therapy has been reported to improve speech outcomes in patients with persisting velopharyngeal insufficiency (VPI). However, little is known regarding the impact of this treatment on different speech parameters over time in adult patients with VPI.

PURPOSE

The purpose of this retrospective study was to evaluate the change in speech parameters after rehabilitation with an SAP and speech therapy in adult patients with VPI using subjective and objective tests.

MATERIAL AND METHODS

Patients above 16 years of age who had received prosthetic treatment for VPI and had complete speech assessment records between 2017 and 2020 were included in the analysis. After completion of the prosthetic treatment, speech therapy comprising 2 sessions per week of 45 minutes was provided by a speech pathologist. Speech evaluation was performed using tests that included speech intelligibility calculation, nasal pinch test, audible nasal air emissions, acoustic analysis, and the nasalance check. Assessments were done at 4 time intervals: T0: without an SAP; T1: 1 week with an SAP; T2: 1 month with an SAP; and T3: 3 months with an SAP. A descriptive analysis was followed by a comparison between groups using the Friedman test for subjective assessments and repeated measures ANOVA for objective tests (α=.05).

RESULTS

Of 10 individuals who had received an SAP, 5 participants, 2 men and 3 women with a mean age of 38 years were included in the analysis. Statistically significant improvement in mean scores was observed from T0 to T3 concerning speech intelligibility (P<.001), hypernasality (P<.001), audible nasal air emission (P<.001), mean fundamental frequency (P=.034), shimmer percentage (P=.004), and nasalance (P=.004). Improvement in jitter percentage was not statistically significant (P=.218).

CONCLUSIONS

An SAP along with speech therapy should be considered as a conservative and effective treatment option for addressing speech issues in adult patients with VPI.

Cephalometric Pharyngeal Morphology in Adults with Unoperated Cleft Palate

OBJECTIVE

The aim of this study was to cephalometrically evaluate the pharyngeal morphology in adults with unoperated Submucous Cleft Palate (SMCP), adults with unoperated Overt Cleft Palate (OCP), and adults without clefts.

DESIGN

This study employed a retrospective cross-sectional design. Lateral cephalometric radiography was performed on three groups of adults: 1) 29 with unrepaired SMCP; 2) 41 with unrepaired OCP; and 3) 39 without clefts, who served as controls. One-way ANOVA and rank-sum tests were used for intergroup comparisons. P value was set at .05.

RESULTS

The soft palate length and the ratio of soft palate length to pharyngeal depth were significantly lower in subjects with unoperated SMCP and OCP than in non-cleft controls. Significant differences were also observed in pharyngeal depth, nasopharyngeal depth, and posterior pharyngeal wall thickness between subjects with unoperated OCP and non-cleft controls.

CONCLUSIONS

Pharyngeal morphology differs significantly between individuals with and without clefts, particularly in soft palate length and the ratio of soft palate length to pharyngeal depth.

Subjective and Objective Evaluation of Speech in Adult Patients With Repaired Cleft Palate

OBJECTIVE

To explore the speech outcomes of adult patients with repaired cleft palate through subjective perception evaluation and objective acoustic analysis, and to compare the differences in pronunciation characteristics between speakers with complete velopharyngeal closure (VPC) and velopharyngeal insufficiency (VPI) patients.

PARTICIPANTS AND INTERVENTION

Subjective evaluation indicators included speech intelligibility, nasality and consonant missing rate, for objective acoustic analysis, we used speech sample normalization and objective acoustic parameters included normalized vowel formants, voice onset time and the analysis of 3-dimensional spectrogram and spectrum, were carried out on speech samples produced by 3 groups of speakers: (a) speakers with velopharyngeal competence after palatorrhaphy (n=38); (b) speakers with velopharyngeal incompetence after palatorrhaphy (n=70), (c) adult patients with cleft palate (n=65) and (d) typical speakers (n=30).

RESULTS

There was a highly negative correlation between VPC grade and speech intelligibility (ρ=-0.933), and a highly positive correlation between VPC and nasality (ρ=0.813). In subjective evaluation, the speech level of VPI patients was significantly lower than that of VPC patients and normal adults. Although the nasality and consonant loss rate of VPC patients were significantly higher than that of normal adults, the speech intelligibility of VPC patients was not significantly different from that of normal adults. In acoustic analysis, patients with VPI still performed poorly compared with patients with VPC.

CONCLUSIONS

The speech function of adult cleft palate patients is affected by abnormal palatal structure and bad pronunciation habits. In subjective evaluation, there was no significant difference in speech level between VPC patients and normal adults, whereas there was significant difference between VPI patients and normal adults. The acoustic parameters were different between the 2 groups after cleft palate repair. The condition of palatopharyngeal closure after cleft palate can affect the patient's speech.

Speech-aid prosthesis in velopharyngeal incompetency patient with cleft palate: can speech aids be applicable for adult patient?

Background

Velopharyngeal incompetence (VPI) therapy for cleft palate (speech therapy alone, speech therapy using speech aids, or combined therapy such as speech therapy using a pharyngeal flap), is more effective in younger patients than in adult patients. Speech therapy is known as very difficult for patients who still have VPI as an adult. Because of the possibility of subsequent speech disorders, the timing of surgery for cleft palate is accelerating. Herein, we present a case of an adult with articulation disorder due to VPI who was treated by speech therapy and a speech-aid prosthesis.

Case presentation

A woman who underwent cleft palate surgery at 8 years of age still had difficulty with articulation due to VPI as a 24-year-old adult because of a lack of continuous speech therapy. We decided to use a speech-aid application using palatal lift, and a reduction program was conducted four times, along with simultaneous speech therapy, over a period of 1 year and 7 months. During the therapy period, she was able to speak normally within a relatively short period of time, and after implementation of the reduction program, the therapy was completed by completely removing the device. Long-term observations have shown normal speech function without recurrence, even after the device was removed.

Conclusion

As seen in this case, speech therapy using speech aids can show a good result for adult patients with cleft palate who missed the usual timing for the treatment of articulation disorders, depending on the situation. Therefore, it is hereby reported as a therapy option worthy of consideration.

An Observational Study to Evaluate Association Between Velopharyngeal Anatomy and Speech Outcomes in Adult Patients With Severe Velopharyngeal Insufficiency

OBJECTIVE

By measuring velopharyngeal structure and evaluating speech intelligibility, to explore and observe the association between velopharyngeal anatomy and speech outcomes in these patients.

METHODS

Thirty-one adult patients with velopharyngeal insufficiency after the primary palatoplasty aged 18 to 35 years (mean 22.03 years) were enrolled as the study group. The patients had significant hypernasality and audible nasal emission. The degree of velopharyngeal closure assessed by electronic nasopharyngeal fiberoptic endoscopy was grade III. Cephalometric analysis was performed on lateral cephalograms to measure velopharyngeal structure, including hard palate length (ANS-PNS), velar length (PNS-U), pharyngeal depth (PNS-PPW), and oropharyngeal airway space (U-MPW). Their speech intelligibility was evaluated through the Mandarin Chinese speech intelligibility test, and each speech sample was examined by 2 speech and language pathologists. The results were assessed with the SPSS 23.0 software package, and regression analysis was used to examine the relationship between velopharyngeal structure and speech outcomes.

RESULTS

A significant negative correlation was confirmed between speech intelligibility and pharyngeal depth. Pharyngeal depth also showed a linear relationship with speech intelligibility, and there was no significant correlation between speech intelligibility and other measures (hard palate length, velar length, oropharyngeal airway space).

CONCLUSIONS

In the velopharyngeal anatomy, only pharyngeal depth was associated with speech intelligibility in adult patients with severe velopharyngeal insufficiency, this is consistent with our clinical observation. It suggests that appropriate reduction of pharyngeal depth during palatopharyngoplasty may have a good effect on the speech recovery in patients with cleft palate and patients with velopharyngeal insufficiency after palatorrhaphy.

Speech Outcomes Comparison Between Adult Velopharyngeal Insufficiency and Patients With Unrepaired Cleft Palate

OBJECTIVE

This study compared the speech outcomes of adult velopharyngeal insufficiency patients and adult cleft palate (ACP) patients, and explored whether there was any difference in the phonological level of these 2 types of patients.

METHODS

Perceptual evaluation was used to assess speech intelligibility, hypernasality and compensatory articulation in 89 adult patients with velopharyngeal insufficiency and 35 adult patients with unrepaired cleft palate. Each group was divided into complete cleft palate and incomplete cleft palate (including submucous cleft palate). The phonological differences were compared between the 2 groups of patients and 2 types of cleft palate.

RESULTS

The mean speech intelligibility was 43.04% in velopharyngeal insufficiency group and 32.87% in ACP group. There was a significant difference in speech intelligibility between the 2 groups by T test, t = 2.916 (P < 0.01), speech intelligibility between 2 types of cleft palate was no significant difference. Also, there was a significant difference between the 2 groups in the constitution of hypernasality degree by Chi-Square test, x2 = 31.650 (P < 0.01), compensatory articulation were present in 74.3% ACP patients (26/35) and 47.2% velopharyngeal insufficiency patients (42/89), x2 = 7.446 (P < 0.01), there was a significant difference in incidence of compensatory articulation between the 2 groups.

CONCLUSIONS

Adult patients with unpaired cleft palate present an even worse speech intelligibility and hypernasality degree than velopharyngeal insufficiency patients after cleft palate repair, regardless of the cleft type. Additionally, patients in ACP group have a higher incidence of compensatory articulation than that in incomplete cleft palate group. In sequenced treatments of cleft lip and palate, evaluation and treatment of speech disorders cannot be ignored.

Acoustic analysis and detection of pharyngeal fricative in cleft palate speech using correlation of signals in independent frequency bands and octave spectrum prominent peak

BACKGROUND

Pharyngeal fricative is one typical compensatory articulation error of cleft palate speech. It passively influences daily communication for people who suffer from it. The automatic detection of pharyngeal fricatives in cleft palate speech can provide information for clinical doctors and speech-language pathologists to aid in diagnosis.

RESULTS

This paper proposes two features (CSIFs: correlation of signals in independent frequency bands; OSPP: octave spectrum prominent peak) to detect pharyngeal fricative speech. CSIFs feature is proposed to detect the distribution characteristics of frequency components in pharyngeal fricative speech caused by the changed place of articulation and movement of articulators. While OSPP is presented to reflect the concentration degree of prominent peak which is closely related to the place of articulation in pharyngeal fricative, both features are investigated to relate to the altered production process of pharyngeal fricative. To evaluate the capability of these two features to detect pharyngeal fricative, we collected a speech database covering all the types of initial consonants in which pharyngeal fricatives occur. In this detection task, the classifier used to discriminate pharyngeal fricative speech and normal speech is based on ensemble learning.

CONCLUSION

The detection accuracy obtained with CSIFs and OSPP features ranges from 83.5 to 84.5% and from 85 to 87%, respectively. When these two features are combined, the detection accuracy for pharyngeal fricative speech ranges from 88 to 89%, with an AUC (area under the receiver operating characteristic curve) value of 93%.