Effect of perceptive-auditory training on the classification of speech hypernasality. / Efeito do treinamento perceptivo-auditivo na classificação da hipernasalidade de fala.

PURPOSE: To analyze the effect of auditory-perceptual training by inexperienced speech-language pathologists in the classification of hypernasality in individuals with cleft lip and palate and compare their classification of hypernasality individually, with the gold standard evaluation, before and after this training. METHODS: Three inexperienced speech-language pathologists used a four-point scale to assess 24 high-pressure speech samples from individuals with cleft lip and palate, before and after auditory-perceptual training. The speech samples corresponded to six samples of each degree of hypernasality. The speech-language pathologists received auditory-perceptual training during the assessments. They had access to anchor samples and immediate feedback of correct answers regarding the degree of hypernasality in training. RESULTS: There was no significant difference in the overall percentage of correct answers when comparing before and after the auditory-perceptual training. There was a significant association and agreement of the three evaluators with a gold standard evaluation after training, with an increase in agreement for a single evaluator for absent and mild degrees of hypernasality. The dichotomous analysis of the data showed an increase in the Kappa Index of Agreement of this evaluator. Although there was an increase in the Index of Agreement between evaluators for absent, mild, and severe hypernasality, this increase did not reach statistical significance. CONCLUSION: The auditory-perceptual training provided did not result in a significant improvement in the hypernasality classification for the inexperienced speech-language pathologists, even though the individual data analysis showed that the training favored one of the evaluators. Further studies involving gradual and more extensive auditory-perceptual training may favor the classification of hypernasality by inexperienced SLPs.

OBJETIVO: Analisar o efeito de um treinamento perceptivo-auditivo de fonoaudiólogas sem experiência na classificação da hipernasalidade de fala de indivíduos com fissura labiopalatina e comparar a classificação da presença e grau de hipernasalidade realizadas dessas fonoaudiólogas (com a avaliação padrão-ouro), antes e depois do treinamento perceptivo-auditivo. MÉTODO: Três fonoaudiólogas sem experiência analisaram 24 amostras de fala de alta pressão de indivíduos com fissura labiopalatina, antes e depois de treinamento perceptivo-auditivo, usando escala de quatro pontos. As amostras de fala correspondiam a seis amostras de cada grau de hipernasalidade. Entre as análises, as fonoaudiólogas receberam treinamento perceptivo-auditivo. Houve acesso às amostras de referência e feedback de respostas corretas quanto ao grau de hipernasalidade no treinamento. RESULTADOS: Não houve diferença significativa na porcentagem geral de acertos entre os momentos antes e depois do treinamento perceptivo-auditivo. Houve associação e concordância significativa das três avaliadoras com avaliação padrão ouro após treinamento, com aumento da concordância para uma avaliadora (aumento de respostas corretas para os graus ausente e leve). A análise dicotômica dos dados mostrou aumento do índice de concordância Kappa dessa avaliadora. Houve aumento do índice concordância inter-avaliadores para hipernasalidade ausente, leve, e grave, porém sem significância estatística. CONCLUSÃO: O treinamento perceptivo-auditivo não resultou em melhora significativa da classificação da hipernasalidade de fala pelas fonoaudiólogas sem experiência, embora a análise individual dos dados tenha mostrado que o treinamento favoreceu uma dessas avaliadoras. Novos estudos envolvendo treinamento perceptivo-auditivo gradual e mais extenso poderão favorecer a classificação da hipernasalidade de fala por fonoaudiólogos sem experiência.

Application of data mining to extract knowledge about the occurrence of fistulas after palatoplasty / Aplicação de mineração de dados para extração de conhecimento sobre ocorrência de fístulas após palatoplastia

Introduction: Data mining techniques expand access to important information for the decision-making process during health care. The objective the study proposes using data mining techniques to identify variables (surgical treatment protocols, patient characteristics, post-surgical complications) associated with fistulas after primary palatoplasty in patients with unilateral transforamen incisor cleft (UTIC). Method: A data set of 222 patients with UTIC without syndromes, operated by four surgeons with Furlow's or von Langenbeck's primary palatoplasty techniques, was analyzed for this study. Two models for detecting the outcome of surgery were induced using data mining techniques (Decision Tree and Apriori). Results: Five rules were selected from a decision tree pointing to some variables as predictors of fistulas associated with primary palatoplasty: infection, cough, hypernasality, and surgeon. Analysis of the model indicates that it correctly classifies 95.9% of occurrences between the absence and presence of fistulas. The second model indicates that the absence of post-surgical complications (infection and fever) and normal speech results (absent hypernasality, without suggestive of velopharyngeal dysfunction) are related to the absence of fistulas. Regarding surgical procedures, the Furlow technique and the Vomer flap were more frequent in patients with fistulas. Conclusion: Data mining techniques, as applied in the present study, pointed to infection and cough, hypernasality, and surgeon and surgical techniques as predictors of fistulas related to primary palatoplasty.

Introdução: As técnicas de mineração de dados ampliam o acesso a informações importantes para o processo de tomada de decisão durante os cuidados com a saúde. O objetivo do estudo propõe a utilização de técnicas de mineração de dados para identificar variáveis (protocolos de tratamento cirúrgico, características do paciente, intercorrências pós-cirúrgicas) associadas à ocorrência de fístulas após palatoplastia primária em pacientes com fissura transforame incisivo unilateral (FTIU). Método: Um conjunto de dados de 222 pacientes com FTIU sem síndromes, operados por quatro cirurgiões com as técnicas de palatoplastia primária de Furlow ou von Langenbeck, foi analisado para este estudo. Dois modelos para detecção do resultado da cirurgia foram induzidos usando técnicas de mineração de dados (Árvore de Decisão e Apriori). Resultados: Cinco regras foram selecionadas de uma árvore de decisão apontando para algumas variáveis como preditivas de fístulas associadas à palatoplastia primária: infecção, tosse, hipernasalidade, cirurgião. A análise do modelo indica que ele classifica corretamente 95,9% das ocorrências entre ausência e presença de fístulas. O segundo modelo indica que a ausência de intercorrências pós-cirúrgicas (infecção e febre) e resultado de fala normal (hipernasalidade ausente, sem sugestivo de disfunção velofaríngea) estão relacionados à ausência de fístulas. Em relação aos procedimentos cirúrgicos, o uso da técnica de Furlow e retalho de Vomer foram mais frequentes nos pacientes com fístulas. Conclusão: Técnicas de mineração de dados, conforme aplicadas no presente estudo, apontaram para infecção e tosse, presença de hipernasalidade, cirurgião e técnica cirúrgica como preditores de fístulas relacionadas à palatoplastia primária.

Influence of an Intensive Speech Therapy Program on the Speech of Individuals with Cleft Lip and Palate

Abstract Introduction Compensatory articulations are speech disorders due to the attempt of the individual with cleft palate/velopharyngeal dysfunction to generate intraoral pressure to produce high-pressure consonants. Speech therapy is the indicated intervention for their correction, and an intensive speech therapy meets the facilitating conditions for the correction of glottal stop articulation, which is the most common compensatory articulation. Objective To investigate the influence of an intensive speech therapy program (ISTP) to correct glottal stop articulation in the speech of individuals with cleft palate. Methods Speech recordings of 37 operated cleft palate participants of both genders (mean age = 19 years old) were rated by 3 experienced speech/language pathologists. Their task was to rate the presence and absence of glottal stops in the 6 Brazilian Portuguese occlusive consonants (p, b, t, d, k, g) distributed within several places in 6 sentences. Results Out of the 325 pretherapy target consonants rated with glottal stop, 197 (61%) remained with this error, and 128 (39%) no longer presented it. The comparison of the pre- and posttherapy results showed: a) a statical significance for the p1, p2, p3, p4, t1, k1, k2 and d6 consonants (McNemar test; p < 0.05); b) a statistical significance for the p consonant in relation to the k, b, d, g consonants and for the t consonant in relation to the b, d, and g consonants (chi-squared test; p < 0.05) in the comparison of the proportion improvement among the 6 occlusive consonants. Conclusion The ISTP influenced the correction of glottal stops in the speech of individuals with cleft palate.

Influence of an Intensive Speech Therapy Program on the Speech of Individuals with Cleft Lip and Palate.

Introduction Compensatory articulations are speech disorders due to the attempt of the individual with cleft palate/velopharyngeal dysfunction to generate intraoral pressure to produce high-pressure consonants. Speech therapy is the indicated intervention for their correction, and an intensive speech therapy meets the facilitating conditions for the correction of glottal stop articulation, which is the most common compensatory articulation. Objective To investigate the influence of an intensive speech therapy program (ISTP) to correct glottal stop articulation in the speech of individuals with cleft palate. Methods Speech recordings of 37 operated cleft palate participants of both genders (mean age = 19 years old) were rated by 3 experienced speech/language pathologists. Their task was to rate the presence and absence of glottal stops in the 6 Brazilian Portuguese occlusive consonants (p, b, t, d, k, g) distributed within several places in 6 sentences. Results Out of the 325 pretherapy target consonants rated with glottal stop, 197 (61%) remained with this error, and 128 (39%) no longer presented it. The comparison of the pre- and posttherapy results showed: a) a statical significance for the p1, p2, p3, p4, t1, k1, k2 and d6 consonants (McNemar test; p < 0.05); b) a statistical significance for the p consonant in relation to the k, b, d, g consonants and for the t consonant in relation to the b, d, and g consonants (chi-squared test; p < 0.05) in the comparison of the proportion improvement among the 6 occlusive consonants. Conclusion The ISTP influenced the correction of glottal stops in the speech of individuals with cleft palate.

Could speech disorders in children with cleft lip and palate be justified by impaired central auditory skills?

ABSTRACT Purpose: to verify the association between central auditory skills and speech disorders related to velopharyngeal dysfunction. Methods: forty-five children, with repaired non-syndromic cleft lip and palate or cleft lip only, aged 7-11 years old, were divided into three groups: G1 (n=15), children with hypernasality, nasal air emission, and compensatory articulations; G2 (n=15), children with hypernasality and nasal air emission, but without compensatory articulations; and G3 (n=15), children without hypernasality, nasal air emission, and compensatory articulations. The medical records of all participants were analyzed to verify the eligibility criteria and obtain speech assessments, and then, they were submitted to an assessment of central auditory skills. Statistical analysis comprised descriptive and chi-square test with a significance level of 5%. Results: G1 presented a higher occurrence of impairment in central auditory skills differing from the other groups, particularly in the temporal ordering and binaural integration skills. A significant difference was observed among groups in temporal ordering ability. No significant association was found between the use of specific types of compensatory articulations and impaired auditory skills. Conclusion: there was an association between changes in temporal ordering auditory skills and binaural integration in children with velopharyngeal dysfunction, regardless of the presence or type of compensatory articulation found.

Efeito do treinamento perceptivo-auditivo na classificação da hipernasalidade de fala / Effect of perceptive-auditory training on the classification of speech hypernasality

RESUMO Objetivo Analisar o efeito de um treinamento perceptivo-auditivo de fonoaudiólogas sem experiência na classificação da hipernasalidade de fala de indivíduos com fissura labiopalatina e comparar a classificação da presença e grau de hipernasalidade realizadas dessas fonoaudiólogas (com a avaliação padrão-ouro), antes e depois do treinamento perceptivo-auditivo. Método Três fonoaudiólogas sem experiência analisaram 24 amostras de fala de alta pressão de indivíduos com fissura labiopalatina, antes e depois de treinamento perceptivo-auditivo, usando escala de quatro pontos. As amostras de fala correspondiam a seis amostras de cada grau de hipernasalidade. Entre as análises, as fonoaudiólogas receberam treinamento perceptivo-auditivo. Houve acesso às amostras de referência e feedback de respostas corretas quanto ao grau de hipernasalidade no treinamento. Resultados Não houve diferença significativa na porcentagem geral de acertos entre os momentos antes e depois do treinamento perceptivo-auditivo. Houve associação e concordância significativa das três avaliadoras com avaliação padrão ouro após treinamento, com aumento da concordância para uma avaliadora (aumento de respostas corretas para os graus ausente e leve). A análise dicotômica dos dados mostrou aumento do índice de concordância Kappa dessa avaliadora. Houve aumento do índice concordância inter-avaliadores para hipernasalidade ausente, leve, e grave, porém sem significância estatística. Conclusão O treinamento perceptivo-auditivo não resultou em melhora significativa da classificação da hipernasalidade de fala pelas fonoaudiólogas sem experiência, embora a análise individual dos dados tenha mostrado que o treinamento favoreceu uma dessas avaliadoras. Novos estudos envolvendo treinamento perceptivo-auditivo gradual e mais extenso poderão favorecer a classificação da hipernasalidade de fala por fonoaudiólogos sem experiência.

ABSTRACT Purpose To analyze the effect of auditory-perceptual training by inexperienced speech-language pathologists in the classification of hypernasality in individuals with cleft lip and palate and compare their classification of hypernasality individually, with the gold standard evaluation, before and after this training. Methods Three inexperienced speech-language pathologists used a four-point scale to assess 24 high-pressure speech samples from individuals with cleft lip and palate, before and after auditory-perceptual training. The speech samples corresponded to six samples of each degree of hypernasality. The speech-language pathologists received auditory-perceptual training during the assessments. They had access to anchor samples and immediate feedback of correct answers regarding the degree of hypernasality in training. Results There was no significant difference in the overall percentage of correct answers when comparing before and after the auditory-perceptual training. There was a significant association and agreement of the three evaluators with a gold standard evaluation after training, with an increase in agreement for a single evaluator for absent and mild degrees of hypernasality. The dichotomous analysis of the data showed an increase in the Kappa Index of Agreement of this evaluator. Although there was an increase in the Index of Agreement between evaluators for absent, mild, and severe hypernasality, this increase did not reach statistical significance. Conclusion The auditory-perceptual training provided did not result in a significant improvement in the hypernasality classification for the inexperienced speech-language pathologists, even though the individual data analysis showed that the training favored one of the evaluators. Further studies involving gradual and more extensive auditory-perceptual training may favor the classification of hypernasality by inexperienced SLPs.

Pharyngeal bulb prosthesis and speech outcome in patients with cleft palate / Obturador faríngeo e resultados de fala em pacientes com fissura palatina

Abstract Introduction: Individuals with cleft palate can present with velopharyngeal dysfunction after primary palatoplasty and require a secondary treatment due to insufficiency. In these cases, the pharyngeal bulb prosthesis can be used temporarily while awaiting secondary surgery. Objective: This study aimed to investigate the outcome of treatment of hypernasality with pharyngeal bulb prosthesis in patients with history of cleft palate presenting with velopharyngeal insufficiency after primary palatal surgery. We hypothesized that the use of the pharyngeal bulb prosthesis is an effective approach to eliminate hypernasality related to velopharyngeal insufficiency in patients with cleft palate. Methods: Thirty speakers of Brazilian Portuguese (15 males and 15 females) with operated cleft palate, ages ranging from 6 to 14 years (mean: 9 years; SD = 1.87 years), participated in the study. All patients were fitted with a pharyngeal bulb prosthesis to manage velopharyngeal insufficiency while they were awaiting corrective surgery to be scheduled. Auditory-perceptual analysis of speech recorded in the conditions with and without pharyngeal bulb prosthesis were obtained from three listeners who rated the presence or absence of hypernasality for this study. Results: Seventy percent of the patients eliminated hypernasality while employing the pharyngeal bulb prosthesis, while 30% still presented with hypernasality. The comparison was statistically significant (p < 0.001). Conclusion: The use of the pharyngeal bulb prosthesis is an effective approach to eliminate hypernasality related to velopharyngeal insufficiency.

Resumo Introdução: Indivíduos com fissura palatina podem apresentar disfunção velofaríngea após a palatoplastia primária e necessitam de um secundário devido à insuficiência velofaríngea. Nesses casos, o obturador faríngeo pode ser usado temporariamente enquanto se aguarda uma cirurgia secundária. Objetivo: Investigar o resultado do tratamento da hipernasalidade com o uso de obturador faríngeo em pacientes com histórico de fissura palatina que apresentam insuficiência velofaríngea após a palatoplastia primária. Nossa hipótese é que o uso do obturador faríngeo seja uma abordagem eficaz para eliminar a hipernasalidade relacionada à insuficiência velofaríngea em pacientes com fissura palatina Método: Participaram do estudo 30 indivíduos falantes do Português Brasileiro (15 homens e 15 mulheres) com fissura palatina operada, de 6 a 14 anos de idade (média: 9 anos; DP = 1,87 anos). Todos os pacientes receberam obturador faríngeo para o tratamento da insuficiência velofaríngea, enquanto aguardavam vaga para a cirurgia secundária. A análise perceptivo-auditiva da fala, realizada nas condições com e sem obturador faríngeo, foi realizada por três ouvintes, quanto à presença e ausência da hipernasalidade. Resultados: 70% dos pacientes eliminaram a hipernasalidade de fala com o uso do obturador faríngeo, enquanto 30% não eliminaram. A comparação foi estatisticamente significante (p < 0,001). Conclusão: O uso temporário do obturador faríngeo é uma abordagem efetiva para eliminar a hipernasalidade decorrente da insuficiência velofaríngea.

Normative nasalance scores in Chilean adults.

PURPOSE: The present study is aimed towards determining and comparing normative nasalance scores in Chilean Spanish-speaking adult men and women. METHODS: 40 women (age range 18 to 35, X = 25.79, SD = 5.83) and 36 men (age range 18 to 35, X = 26.45, SD = 4.08) were invited to participate, all of them without any previous speech therapy, neurological pathologies, intellectual deficits, hearing loss, syndromes, or other diagnosed pathologies that could impact speech production.A study of proper velopharyngeal function was performed, using a perceptual resonance evaluation. Nasalance was determined using a model 6450 Nasometer, during the reading of three standardized speech samples in Spanish: a nasal passage (NP), an oronasal passage (ONP), and an oral passage (OP). Also, the nasalance distance was calculated. Genders were compared using Wilcoxon tests for independent samples. RESULTS: The NP presented the highest percentage of nasalance, with 52.13% (± 4.73), followed by the ONP with 25.38% (± 3.7), and finally the OP, which presented the lowest value of 14.15% (± 5.03). Meanwhile, nasalance distance was 37.98% (± 5.32). Finally, no significant differences were observed when comparing the nasalance between genders (p >0.05). CONCLUSION: The nasalance values obtained were similar to those observed for other Spanish speakers. Also, male and women showed similar scores. The results of this study are a contribution to the indirect assessment of velopharyngeal function in Chilean adults.

Pharyngeal bulb prosthesis and speech outcome in patients with cleft palate.

INTRODUCTION: Individuals with cleft palate can present with velopharyngeal dysfunction after primary palatoplasty and require a secondary treatment due to insufficiency. In these cases, the pharyngeal bulb prosthesis can be used temporarily while awaiting secondary surgery. OBJECTIVE: This study aimed to investigate the outcome of treatment of hypernasality with pharyngeal bulb prosthesis in patients with history of cleft palate presenting with velopharyngeal insufficiency after primary palatal surgery. We hypothesized that the use of the pharyngeal bulb prosthesis is an effective approach to eliminate hypernasality related to velopharyngeal insufficiency in patients with cleft palate. METHODS: Thirty speakers of Brazilian Portuguese (15 males and 15 females) with operated cleft palate, ages ranging from 6 to 14 years (mean: 9 years; SD = 1.87 years), participated in the study. All patients were fitted with a pharyngeal bulb prosthesis to manage velopharyngeal insufficiency while they were awaiting corrective surgery to be scheduled. Auditory-perceptual analysis of speech recorded in the conditions with and without pharyngeal bulb prosthesis were obtained from three listeners who rated the presence or absence of hypernasality for this study. RESULTS: Seventy percent of the patients eliminated hypernasality while employing the pharyngeal bulb prosthesis, while 30% still presented with hypernasality. The comparison was statistically significant (p < 0.001). CONCLUSION: The use of the pharyngeal bulb prosthesis is an effective approach to eliminate hypernasality related to velopharyngeal insufficiency.

Can a pharyngeal bulb prosthesis eliminate hypernasal speech in individuals with hypodynamic velopharynx?

ABSTRACT Purpose: to investigate the effectiveness of a pharyngeal bulb prosthesis to eliminate hypernasality in patients with operated cleft palate presenting with diagnosis of hypodynamic velopharynx. Methods: twenty patients with cleft palate, ages 11-40 years, presenting hypodynamic velopharynx participated in the study. Patients had their speech audio recorded twice, with and without prosthesis, simultaneously with nasometry. Three speech-pathologists rated the presence and absence of hypernasality. Perceptual and nasometric data without and with prosthesis were compared, using the McNemar Test (p<0.05). Results: three (15%) patients presented hypernasality without prosthesis and normal resonance with prosthesis, 3 (15%), normal resonance without prosthesis and hypernasality with prosthesis, 9 (45%), hypernasality without and with prosthesis, and 5 (25%), normal resonance in both conditions. Nasometry (≤27% cut off): 1 (5%), presented scores >27% without prosthesis and <27% with prosthesis, 2 (10%), scores <27% without prosthesis and >27% with prosthesis, 17 (85%), scores >27% in both conditions, and 1(5%), scores <27% in both conditions. The comparisons between the results were not significant (p=1.000). Conclusion: the pharyngeal bulb prosthesis alone is insufficient to eliminate hypernasality of patients presented with hypodynamic velopharynx. To this purpose, the combination between the prosthesis and speech therapy is required.

Normative nasalance scores in Chilean adults / Valores normativos de nasalancia en adultos chilenos

ABSTRACT Purpose The present study is aimed towards determining and comparing normative nasalance scores in Chilean Spanish-speaking adult men and women. Methods 40 women (age range 18 to 35, X = 25.79, SD = 5.83) and 36 men (age range 18 to 35, X = 26.45, SD = 4.08) were invited to participate, all of them without any previous speech therapy, neurological pathologies, intellectual deficits, hearing loss, syndromes, or other diagnosed pathologies that could impact speech production. A study of proper velopharyngeal function was performed, using a perceptual resonance evaluation. Nasalance was determined using a model 6450 Nasometer, during the reading of three standardized speech samples in Spanish: a nasal passage (NP), an oronasal passage (ONP), and an oral passage (OP). Also, the nasalance distance was calculated. Genders were compared using Wilcoxon tests for independent samples. Results The NP presented the highest percentage of nasalance, with 52.13% (± 4.73), followed by the ONP with 25.38% (± 3.7), and finally the OP, which presented the lowest value of 14.15% (± 5.03). Meanwhile, nasalance distance was 37.98% (± 5.32). Finally, no significant differences were observed when comparing the nasalance between genders (p >0.05). Conclusion The nasalance values obtained were similar to those observed for other Spanish speakers. Also, male and women showed similar scores. The results of this study are a contribution to the indirect assessment of velopharyngeal function in Chilean adults.

RESUMEN Objetivo El presente estudio tiene como objetivo determinar y comparar puntajes normativos de nasalancia en hombres y mujeres chilenos de habla hispana. Método Participaron 40 mujeres (rango de edad de 18 a 35, X = 25.79, DE = 5.83) y 36 hombres (rango de edad de 18 a 35, X = 26.45, DE = 4.08), todos sin ningún antecedente de tratamiento fonoaudiológico, patologías neurológicas, déficit intelectual, hipoacusia, síndromes u otras patologías diagnosticadas que podrían afectar la producción del habla. La adecuada función velofaríngea fue determinada en vivo a través de una evaluación perceptual de la resonancia. La nasalancia se determinó utilizando un Nasometer modelo 6450, durante la lectura de tres muestras de habla estandarizadas en español: un párrafo nasal (PN), un párrafo oronasal (PON) y un párrafo oral (PO). Además, se calculó la distancia de nasalancia. La comparación entre ambos sexos fue realizada con el test de Wilcoxon para muestras independientes. Resultados El PN presentó el mayor porcentaje de nasalancia con 52.13% (± 4.73), seguido del PON con 25.38% (± 3.7), y finalmente el PO, que presentó el valor más bajo de 14.15% (± 5.03). En tanto, la distancia de nasalancia fue del 37.98% (± 5.32). Por último, no se observaron diferencias significativas al comparar entre ambos sexos (p> 0.05). Conclusión Los valores de nasalancia obtenidos fueron similares a los observados para otros hispanohablantes. Además, hombres y mujeres mostraron puntuaciones similares. Los resultados de este estudio son una contribución a la evaluación indirecta de la función velofaríngea en adultos chilenos.

Cephalometric predictors of hypernasality and nasal air emission.

BACKGROUND: During times of increasingly recognized importance of interprofessional practices, professionals in Medicine, Dentistry, and Speech Pathology areas cooperate to optimize treatment of velopharyngeal dysfunction (VPD), after primary palatoplasty for correction of cleft palate. OBJECTIVE: Our study aims to compare velar length, velar thickness, and depth of the nasopharynx of patients with unilateral cleft lip and palate (UCLP) with the presence, or absence, of hypernasality and nasal air emission; and to verify if the depth:length ratio, between nasopharynx and velum, would be predictive of consistent hypernasality and nasal air emission (speech signs of VPD). METHODOLOGY: Cephalometric radiographs and outcome of speech assessment were obtained from 429 individuals, between 6 and 9 years of age, with repaired unilateral cleft lip and palate. Velar length, velar thickness, depth of the nasopharynx, depth:length ratio, scores of hypernasality, and scores of nasal air emission were studied and compared; grouping the radiographs according to presence or absence of hypernasality and nasal air emission. RESULTS: For the group with speech signs of velopharyngeal dysfunction (those with consistent hypernasality and nasal air emission), the velums were shorter and thinner; the nasopharynx was deeper and the depth:length ratio was larger than the group without hypernasality and nasal air emission. Velar length was significantly shorter in individuals with consistent hypernasality and nasal air emission (p<0.001) and with history of palatal fistula (p=0.032). Depth of nasopharynx was significantly greater in individuals with consistent hypernasality and nasal air emission (p<0.001). Depthlength ratio was significantly larger in individuals with consistent hypernasality and nasal air emission (p<0.001). A depth:length ratio larger than 0.93 was always associated with speech signs of VPD. CONCLUSION: Estimated with cephalometric radiographs, a depth:length ratio greater than 0.93, between the nasopharyngeal space and the velum, was 100% accurate in predicting hypernasality and nasal air emission after primary repair of unilateral cleft lip and palate.

Influence of surgical technique and timing of primary repair on interarch relationship in UCLP: A randomized clinical trial.

OBJECTIVE: To compare dental arch relationships in children with unilateral cleft lip and palate (UCLP) between two surgical techniques for repair of cleft lip/palate and two ages of palate repair. SETTINGS AND SAMPLE: Dental models were taken for a group of 448 subjects at a mean age of 7 years and were evaluated by means of the Goslon Yardstick. The patients studied consisted of an initial group of 673 infants with complete UCLP randomized into 8 study groups according to lip repair procedures (Millard versus Spina techniques); palate repair procedures (von Langenbeck versus Furlow techniques); and palate repair timing (early: 9 to 12 months versus late: 15-18 months). METHODS: Four surgeons performed all surgeries. Dependent variables included the following: lip repair technique, palate repair technique, age at time of palate repair and surgeon; with sex as an independent variable. The data were analysed using a general linear model (P < .05). RESULTS: There were no significant differences for occlusal index scores as a function of lip or palate surgical technique, palatal repair timing and sex. Significant differences were found for occlusal index scores as a function of the surgeon. CONCLUSION: Dental arch relationships were not influenced by lip and palatal repair techniques or patient age at palatal repair. The surgeon was the major factor that influenced the dental arch relationship outcome.

Cephalometric predictors of hypernasality and nasal air emission

Abstract During times of increasingly recognized importance of interprofessional practices, professionals in Medicine, Dentistry, and Speech Pathology areas cooperate to optimize treatment of velopharyngeal dysfunction (VPD), after primary palatoplasty for correction of cleft palate. Objective Our study aims to compare velar length, velar thickness, and depth of the nasopharynx of patients with unilateral cleft lip and palate (UCLP) with the presence, or absence, of hypernasality and nasal air emission; and to verify if the depth:length ratio, between nasopharynx and velum, would be predictive of consistent hypernasality and nasal air emission (speech signs of VPD). Methodology Cephalometric radiographs and outcome of speech assessment were obtained from 429 individuals, between 6 and 9 years of age, with repaired unilateral cleft lip and palate. Velar length, velar thickness, depth of the nasopharynx, depth:length ratio, scores of hypernasality, and scores of nasal air emission were studied and compared; grouping the radiographs according to presence or absence of hypernasality and nasal air emission. Results For the group with speech signs of velopharyngeal dysfunction (those with consistent hypernasality and nasal air emission), the velums were shorter and thinner; the nasopharynx was deeper and the depth:length ratio was larger than the group without hypernasality and nasal air emission. Velar length was significantly shorter in individuals with consistent hypernasality and nasal air emission (p<0.001) and with history of palatal fistula (p=0.032). Depth of nasopharynx was significantly greater in individuals with consistent hypernasality and nasal air emission (p<0.001). Depthlength ratio was significantly larger in individuals with consistent hypernasality and nasal air emission (p<0.001). A depth:length ratio larger than 0.93 was always associated with speech signs of VPD. Conclusion Estimated with cephalometric radiographs, a depth:length ratio greater than 0.93, between the nasopharyngeal space and the velum, was 100% accurate in predicting hypernasality and nasal air emission after primary repair of unilateral cleft lip and palate.

Influence of speech stimuli in the auditory perceptual identification of hypernasality in individuals with cleft lip and palate. / Influência de estímulos de fala na identificação perceptivo-auditiva da hipernasalidade em indivíduos com fissura labiopalatina.

PURPOSE: To investigate the influence of speech stimuli in the auditory perceptual identification of hypernasality in individuals with Cleft Lip and Palate (CLP). METHODS: Speech samples from 80 individuals with operated unilateral CLP, ages ranged from nine to 17 years (the mean age of: 12y7m), both genders, were edited for this study. Samples were recorded over the production of nine different speech stimuli, including counting and short sentences characterized by oral sounds, one loaded with low pressure consonants and seven loaded with high pressure consonants. Three speech-language pathologists rated the presence or absence of hypernasality while analyzing 864 recordings (80 individuals X 9 stimuli + 144 repeated recordings, for measuring the intra-rater agreement). Intra-rater and inter-rater indexes of agreement were established for all nine stimulus conditions. The indexes of inter-rater agreement were compared using the Z test (p<0.005), with samples comprising significant indexes of agreement interpreted as better stimuli for identifying the hypernasality in these individuals. RESULTS: Intra-rater agreement for high pressure stimuli with voiced consonants were significantly lower than indexes for other stimuli. Inter-rater agreement between each pair of SLPs ranged from 0.11 (plosive voicing stimuli) to 0.57 (12 short sentences, one of each high pressure consonant). The values of mean inter-rater agreement between all SLPs was 0.47 indicating moderate agreement for identifying hypernasal speech. CONCLUSION: Speech recordings obtained over the production of longer speech samples including 12 short sentences, for instance one for each high pressure consonant, may favor inter-rater agreement for identifying hypernasality.

OBJETIVO: Investigar a influência de estímulos de fala distintos na identificação perceptivo-auditiva da hipernasalidade em indivíduos com fissura labiopalatina operada (FLP). MÉTODO: Foram editadas amostras de fala gravadas em áudio de 80 indivíduos com FLP unilateral operada, de ambos os sexos, com idades entre 9 e 17 anos (média=12 anos e 7 meses). As amostras foram gravadas durante a produção de 9 estímulos de fala distintos: contagem de números e conjuntos de frase orais, sendo 1 constituído por consoantes de baixa pressão e 7 constituídos por consoantes de alta pressão. Três fonoaudiólogas identificaram a presença ou ausência da hipernasalidade ao analisarem 864 gravações (80 indivíduos X 9 estímulos + 144 gravações repetidas para análise de concordância intra-avaliador). Os índices de concordância intra e interavaliadores foram estabelecidos para todos os 9 estímulos de fala e comparados entre si por meio do Teste Z, com nível de significância de 5%, com maiores índices de concordância interpretados como melhores estímulos para identificação da hipernasalidade. RESULTADOS: Índices de concordância intra-avaliadores de estímulos de fala vozeados foram significativamente menores do que outros estímulos. Índices de concordância entre os pares de fonoaudiólogas variaram de 0,11 (concordância estímulos plosivos vozeados) a 0,57 (12 frases, uma com cada consoante de alta pressão), com média de 0,47 entre as três avaliadoras, indicando concordância moderada para identificação da hipernasalidade. CONCLUSÃO: Gravações de fala obtidas durante a produção de estímulos mais longos, incluindo 12 frases, uma com cada consoante de pressão, podem favorecer a concordância interavaliador na identificação da hipernasalidade.

Is the early mixed dentition dental arch relationship related to the anteroposterior alignment of the maxillary segments in infants with CUCLP?

OBJECTIVE: Midface retrusion is a concern in patients with complete unilateral cleft lip and palate (CUCLP). Maxillary segment alignment may influence the prognosis after corrective surgery. This study assessed the association between maxillary segment alignment and interarch relationship observed in the early mixed dentition. The null hypothesis was that there is no relation between the initial alignment of cleft segments and the width of the cleft in the infant, and the early mixed dentition interarch relationship. SETTING AND SAMPLE POPULATION: The sample consists of 352 children with CUCLP treated at the Hospital for Rehabilitation of Craniofacial Anomalies/USP. MATERIAL AND METHODS: Dental models were obtained before lip repair at three months and at the age of six. Based on the first, the sample was then divided into two groups: anteroposterior aligned and anteroposterior misaligned maxillary segments. They were also divided into 4 groups according to the cleft width (Narrow, Medium, Wide and Very Wide). Interarch relationship was graded using the 5-year-old index. The statistical association was evaluated using the chi-squared test (P < .05). RESULTS: Cleft width was inversely related to interarch relationship in the early mixed dentition phase. Interarch relationship at the age of six was more favourable in children with misaligned maxillary segments than in children with aligned segments (P = .048). CONCLUSION: Five-year interarch relationship in patients with CUCLP is related to the anteroposterior relationship of infant maxillary segments and initial cleft width before primary surgeries. Wide alveolar clefts and sagittally aligned maxillary segments showed a worse interarch relationship in the early mixed dentition.

Nasalance-Based Preclassification of Oral-Nasal Balance Disorders Results in Higher Agreement of Expert Listeners' Auditory-Perceptual Assessments: Results of a Retrospective Listening Study.

OBJECTIVE: Reliable perceptual and instrumental assessment of oral-nasal balance disorders is a persistent problem in speech-language pathology. The goal of the study was to evaluate whether nasalance-based preclassification of oral-nasal balance disorders improves listener agreement. DESIGN: Retrospective listening study. SETTING: Tertiary university hospital. PARTICIPANTS: Fifty-four randomly selected recordings of patients with repaired unilateral cleft lip and palate (UCLP). Three experienced speech-language pathologists participated as expert listeners. INTERVENTIONS: Two listening experiments were based on nasalance scores and audio recordings of speakers with repaired UCLP. The speakers were preclassified as normal, hypernasal, hyponasal, or mixed based on their nasalance scores. Initially, the listeners determined the diagnostic category of the oral-nasal balance for 62 audio recordings (8 repeats). Six months later, they listened to 38 of the recordings (6 repeats) along with a spreadsheet indicating the nasalance-based categories for the oral-nasal balance. The listeners confirmed, or rejected and corrected, the nasalance-based preclassification. MAIN OUTCOME MEASURES: Intralistener, interlistener agreement, and agreement between listener categories and nasalance-based oral-nasal balance categories. RESULTS: In the first study, the agreement between the listeners' diagnostic category and the nasalance-based category was 45.1% and the interlistener agreement was 36.7%. In the second study, the agreement between the listeners' category and the nasalance-based category was 67.1% (75% agreement for the correct nasalance-based categories and 41.7% for the misclassifications), and the interlistener agreement was 85.4%. CONCLUSIONS: Preclassification of oral-nasal balance disorders based on nasalance scores may help listeners achieve better diagnostic accuracy and higher agreement.

Analysis of oral-nasal balance after intensive speech therapy combined with speech bulb in speakers with cleft palate and hypernasality.

OBJECTIVE: To evaluate the efficacy of the combination of a speech bulb with an intensive speech therapy program in hypernasal participants with cleft palate. METHODS: Twenty hypernasal speakers with cleft palate (12 females and 8 males, median age 28.45 years), who were wearing speech bulbs underwent an intensive speech therapy program of 45 sessions over 3 weeks. Three experienced speech-language pathologists rated the participants' speech recordings before and after intensive speech therapy, with and without the speech bulb. Nasometric recordings and long-term averaged spectra were also analyzed using repeated-measures ANOVAs. RESULTS: The ANOVA of the hypernasality ratings showed significant effects of therapy [F (1,19) = 15.97; p < .001], speech bulb [F(1,190 = 28.54, p < .001] and a therapy -speech bulb interaction effect [F(1.19) = 22.30, p < 0.001]. The most favorable listener ratings of hypernasality were obtained post-therapy when participants were wearing their speech bulbs. Without the speech bulb, intensive speech therapy by itself did not result in a significant improvement. With speech bulb, nasalance scores for high [F (1,19) = 14.07, p < .001] and low pressure [F (1,19) = 14.84, p < .001] sentences were significantly lower post-therapy, providing preliminary evidence that an intensive speech therapy program may enhance the effect of a speech bulb. Before and after comparisons of individual nasalance profiles demonstrated variable improvement in 15 participants, no progress in 2 participants and more severe hypernasality after therapy in 3 participants. Long-term averaged spectra corroborated the findings of the perceptual analysis. Based on a frequency bin from 201 to 300 Hz, there was a significant within-subject effect for with and without speech bulb [F(1, 18) = 4.54, p = .047] as well as for before vs. after session [F (1,18) = 7.14, p = .015]. CONCLUSION: The speech bulb in combination with intensive speech therapy resulted in improved oral-nasal balance for the majority of participants. More research is needed to investigate long-term outcomes as well as individual factors contributing to therapy success.

Passavant's ridge during speech production with and without pharyngeal bulb.

The objective of this study was to investigate the occurrence of Passavant's ridge in patients with history of cleft palate presenting with velopharyngeal insufficiency (VPI) after primary palatal surgery. Twenty-five adult patients (mean age of 32 years), who wore a pharyngeal bulb prosthesis to correct VPI after primary palatoplasty participated in the study. Presence of Passavant's ridge was investigated in four conditions: prior to pharyngeal bulb for treatment of VPI (C1); during the molding of the pharyngeal bulb (C2); six months after the use of the pharyngeal bulb, but with the prosthesis removed (C3), and six months after the use of the pharyngeal bulb, but with the prosthesis in place (C4). Images of nasoendoscopic assessment of velopharyngeal function were obtained under all conditions were analyzed by speech-pathologists to identify the occurrence of Passavant's ridge during speech production. The results revealed a significant difference between molding condition (C2: 40%) and six months of bulb use (C4: 68%) (p = 0.028). The pharyngeal bulb may elicit the Passavant`s ridge in patients with history of cleft palate presenting with VPI.