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BACKGROUND: With a rapidly aging population in mainland China, dysphagia has become one of the common geriatric disorders which creates a huge demand on speech and language therapists (SLTs). The major challenge is the shortage of SLTs in China. In addition, frontline practitioners in mainland China may not be well equipped with the knowledge and practical skills in dysphagia management due to lack of systematic training and the work nature. AIMS: This study evaluates the self-perceived effectiveness and feasibility of an online training program that aims to enhance the self-assessed knowledge and skills of SLTs providing dysphagia care in residential aged care homes. METHODS AND PROCEDURES: Sixteen SLTs working in a residential aged care homes in mainland China attended a three-hour pilot online training program which consists of didactic lecture and practical skills activity components. A total of 10 participants completed an online questionnaire one month after the training to evaluate the feasibility and effectiveness of this online training program. OUTCOMES AND RESULTS: The preliminary results demonstrated participants' self-perception of high training effectiveness in theoretical knowledge and practical skills. A majority of the participants perceived that the training enhanced their theoretical knowledge and all of them perceived that they acquired practical skills. All respondents were satisfied with the online training approach. They also highlighted the advantage and challenges of the online training approach. CONCLUSIONS AND IMPLICATIONS: Online training is an effective and feasible approach for theoretical knowledge and practical skills transfer in SLT training and could ultimately benefit the delivery of services for individuals with dysphagia in mainland China. WHAT THIS PAPER ADDS: What is already known on the subject Previous studies have shown that online training approach is as effective as face-to-face training in increasing professional knowledge. Online training programs may be more cost efficient and time efficient when compared with face-to-face training. What this study adds The present study provided preliminary evidence to support the feasibility and effectiveness of using online training on dysphagia for speech and language therapists working in residential aged care homes in mainland China. What are the clinical implications of this work? From the participants' perception, online training approach is effective and feasible in delivering theoretical knowledge and practical skills. It may be a better training approach for mainland China considering the lack of expertise and accessibility to training.
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Trastornos de Deglución , Terapia del Lenguaje , Humanos , Anciano , Terapia del Lenguaje/métodos , Logopedia/métodos , Trastornos de Deglución/terapia , Estudios de Factibilidad , Evaluación de NecesidadesRESUMEN
INTRODUCTION: This study aims at exploring the feasibility of applying a computer-based language test to young children aged 2-4 years. METHODS: Thirty-two Cantonese-speaking children, aged 2-4 years, were recruited from local kindergartens. All participants underwent assessment using both the computer-based and paper-pencil versions of the Macau Cantonese Language Screening Scale for Preschool Children, following a crossover study design. A short break of 15-30 minutes was provided between the two assessments. The data were analysed at three levels: the overall test, subcategory, and individual item levels. At the overall test and subcategory levels, data were analysed using the paired samples t-test and ICC. At the item level, the percentage of agreement and Cohen's kappa value were selected to assess the agreement of the two test formats. RESULTS: Excellent agreement was found for the overall test level, and good agreement was observed for four of the five subcategories. At the individual item level, 28 of the 35 items showed more than 80% agreement, and 16 items showed substantial to almost perfect agreement. CONCLUSION: These results suggest that the two test formats give similar total scores and subcategory scores for children aged 2-4. For children older than 2 years, 6 months, the agreement for matching items is as high as 83.68% (1318/1575). The computer-based test is thus highly recommended for this group of children. For children younger than 2 years, 6 months, a modified computer-based test is suggested to accommodate their needs.
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Speaking rhythmically, also known as syllable-timed speech (STS), has been known for centuries to be a fluency-inducing condition for people who stutter. Cantonese is a tonal syllable-timed language and it has been shown that, of all languages, Cantonese is the most rhythmic (Mok, 2009). However, it is not known if STS reduces stuttering in Cantonese as it does in English. This is the first study to investigate the effects of STS on stuttering in a syllable-timed language. Nineteen native Cantonese-speaking adults who stutter were engaged in conversational tasks in Cantonese under two conditions: one in their usual speaking style and one using STS. The speakers' percentage syllables stuttered (%SS) and speech rhythmicity were rated. The rhythmicity ratings were used to estimate the extent to which speakers were using STS in the syllable-timed condition. Results revealed a statistically significant reduction in %SS in the STS condition; however, this reduction was not as large as in previous studies in other languages and the amount of stuttering reduction varied across speakers. The rhythmicity ratings showed that some speakers were perceived to be speaking more rhythmically than others and that the perceived rhythmicity correlated positively with reductions in stuttering. The findings were unexpected, as it was anticipated that speakers of a highly rhythmic language such as Cantonese would find STS easy to use and that the consequent reductions in stuttering would be great, even greater perhaps than in a stress-timed language such as English. The theoretical and clinical implications of the findings are discussed.
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Medición de la Producción del Habla , Logopedia/métodos , Habla/fisiología , Tartamudeo/terapia , Adulto , Femenino , Hong Kong , Humanos , Lenguaje , Masculino , Adulto JovenRESUMEN
Cantonese is a tone language, in which the variation of the fundamental frequency contour of a syllable can change meaning. There are six different lexical tones in Cantonese. While research with Western languages has shown an association between stuttering and syllabic stress, nothing is known about whether stuttering in Cantonese speakers is associated with one or more of the six lexical tones. Such an association has been reported in conversational speech in Mandarin, which is also a tone language, but which varies markedly from Cantonese. Twenty-four native Cantonese-speaking adults who stutter participated in this study, ranging in age from 18-33 years. There were 18 men and 6 women. Participants read aloud 13 Cantonese syllables, each of which was produced with six contrastive lexical tones. All 78 syllables were embedded in the same carrier sentence, to reduce the influence of suprasegmental or linguistic stress, and were presented in random order. No significant differences were found for stuttering moments across the six lexical tones. It is suggested that this is because lexical tones, at least in Cantonese, do not place the task demands on the speech motor system that typify varying syllabic stress in Western languages: variations not only in fundamental frequency, but also in duration and intensity. The findings of this study suggest that treatments for adults who stutter in Western languages, such as speech restructuring, can be used with Cantonese speakers without undue attention to lexical tone.
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Lenguaje , Fonética , Tartamudeo , Adulto , China , Femenino , Humanos , Lingüística , MasculinoRESUMEN
OBJECTIVE: This is the first study to investigate the behavioral nature (topography) of stuttering in Cantonese. Cantonese, a Sino-Tibetan language, is both tonal and syllable-timed. Previous studies of stuttering topography have mainly been in Western languages, which are mainly stress-timed. METHODS: Conversational speech samples were collected from 24 native Cantonese-speaking adults who stuttered. Six consecutive stuttering moments from each participant were analyzed using the Lidcombe behavioral data language (LBDL). A complexity analysis based on the LBDL was developed to indicate the proportion of multiple-behavior stuttering moments for each participant. RESULTS: There was no significant difference in the frequency of the 7 LBDL behaviors. Almost half the stuttering moments across participants were reported as complex, containing more than 1 stuttering behavior, and stuttering complexity correlated significantly with stuttering severity. CONCLUSIONS: These preliminary findings require replication because of their important theoretical and clinical implications. Differences in topography across languages have the potential to contribute to our understanding of the nature of stuttering. Clinically, the recognition of such differences may assist practitioners in identifying stuttering, for example when screening for early stuttering. The LBDL complexity score developed in this study has the potential to be used in other languages.
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Tartamudeo/fisiopatología , Adolescente , Adulto , Pueblo Asiatico , Conducta , Femenino , Humanos , Lenguaje , Masculino , Movimiento , Fonación/fisiología , Postura , Grabación en Video , Adulto JovenRESUMEN
OBJECTIVE: To compare functional and cost-effectiveness of awake transnasal laser assisted-surgery versus microlaryngeal surgery for benign laryngeal lesions. METHODS: This was a prospective non-inferiority randomized controlled trial conducted from May 2021 to December 2022 at two tertiary referral hospitals in Hong Kong. Patients were block-randomized to receive either awake transnasal laser-assisted surgery or microlaryngeal surgery, with post-operative follow-up in a multidisciplinary voice clinic for 1-year. Primary outcome was Voice Handicap Index (VHI-30). Secondary outcomes included operation time, complications, length of stay, peri-operative discomfort, recurrence, and medical costs. RESULTS: Sixty-one patients were randomized to either awake transnasal laser-assisted surgery (n = 30) and microlaryngeal surgery (n = 31). Both groups had comparable demographics and laryngeal pathologies. Both groups showed significant improvement of VHI-30 score over time and had comparable post-operative VHI-30. Awake transnasal laser-assisted surgery group had a significantly shorter length of stay (0.5 vs. 1 day) and less throat discomfort (2 vs. 4) compared to microlaryngeal surgery group. Intraoperative complications were more common in microlaryngeal surgery group (14.3% vs. 0%). Otherwise, both groups had similar operative time and recurrence rate. Cost-analysis showed a significantly lower hospital cost for awake transnasal laser-assisted surgery (USD 3090) compared to microlaryngeal surgery group (USD 5120). CONCLUSION: Awake transnasal laser-assisted surgery was safe, functionally non-inferior, as measured by VHI-30, to microlaryngeal surgery in managing benign laryngeal lesions, while superior to microlaryngeal surgery in peri-operative discomfort and medical costs. LEVEL OF EVIDENCE: 2 Laryngoscope, 134:3732-3740, 2024.
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Enfermedades de la Laringe , Terapia por Láser , Humanos , Masculino , Femenino , Persona de Mediana Edad , Terapia por Láser/métodos , Terapia por Láser/economía , Enfermedades de la Laringe/cirugía , Estudios Prospectivos , Adulto , Análisis Costo-Beneficio , Resultado del Tratamiento , Anciano , Microcirugia/métodos , Microcirugia/economía , Tempo Operativo , Cirugía Endoscópica por Orificios Naturales/métodos , Cirugía Endoscópica por Orificios Naturales/economía , Tiempo de Internación/estadística & datos numéricos , Vigilia , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiologíaRESUMEN
English-speaking children with Autism Spectrum Disorders (ASD) are less capable of using prosodic cues such as intonation for irony comprehension. Prosodic cues, in particular intonation, in Cantonese are relatively restricted while sentence-final particles (SFPs) may be used for this pragmatic function. This study investigated the use of prosodic cues and SFPs in irony comprehension in Cantonese-speaking children with and without ASD. Thirteen children with ASD (8;3-12;9) were language-matched with 13 typically developing (TD) peers. By manipulating prosodic cues and SFPs, 16 stories with an ironic remark were constructed. Participants had to judge the speaker's belief and intention. Both groups performed similarly well in judging the speaker's belief. For the speaker's intention, the TD group relied more on SFPs. The ASD group performed significantly poorer and did not rely on either cue. SFPs may play a salient role in Cantonese irony comprehension. The differences between the two groups were discussed by considering the literature on theory of mind.
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Pueblo Asiatico/psicología , Trastornos Generalizados del Desarrollo Infantil/fisiopatología , Trastornos Generalizados del Desarrollo Infantil/psicología , Señales (Psicología) , Lingüística , Niño , Comprensión , Cultura , Femenino , Humanos , Intención , Pruebas del Lenguaje , Masculino , Multilingüismo , Psicolingüística , Teoría de la Mente , Conducta VerbalRESUMEN
Background: Exercise-based swallowing training (EBST) and transcutaneous neuromuscular electrical stimulation (TNMES) are common modalities used to treat late dysphagia after radiotherapy for nasopharyngeal carcinoma (NPC). We aimed to investigate and compare the efficacies of EBST and TNMES as proactive treatments administered early after radiotherapy. Methods: Patients with early post-radiotherapy NPC (n = 120) underwent either TNMES or EBST. Flexible endoscopic evaluation of swallowing (FEES), quality of life (QOL), and swallowing function questionnaires were completed before the intervention as well as immediately, 6, and 12 months after the intervention. Outcome measures included the scores for the swallowing function score (SFS), penetration and aspiration scale (PAS), dynamic imaging grade of swallowing toxicity (DIGEST), functional oral intake scale (FOIS), swallowing performance status scale (SPSS), pharyngeal motor impairment (PMI), pharyngeal function impairment (PFI), and functional assessment after cancer therapy-nasopharyngeal (FACT-NP) questionnaire. Results: Three months after radiotherapy, 31 and 34 patients underwent TNMES and EBST, respectively, and completed swallowing assessments at all four assessment timepoints. All patients showed post-radiotherapy impairments in the SFS, PAS, DIGEST, PMI, and PFI. Compared with the EBST group, the TNMES group showed significant improvements in the PFI and PMI scores, with small-to-medium effect sizes. Additionally, compared with the EBST group, the TNMES group demonstrated a trend toward slightly better improvements in the PAS, DIGEST, FOIS, and SPSS scores immediately and 6 months after the intervention. The SFS scores improved from baseline in both groups; however, the TNMES group showed an earlier improvement. Finally, the TNMES group showed better QOL according to the FACT-NP than the EBST group. Conclusion: Proactive TMNES and EBST are safe and feasible modalities for improving swallowing in patients with NPC when administered early after radiotherapy. Although TNMES showed better results than EBST, these results should be interpreted with caution given the study limitations. Level of evidence: 1B.
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BACKGROUND: Multilingualism can bring about various positive outcomes to typically developing children. Its effect on children with language difficulties is not yet clear. AIM: The aim of this study was to examine the effects of multilingual learning as a medium of instruction (MOI) on first language (L1) acquisition of children with language disorders (LD). METHODS & PROCEDURES: Nineteen Cantonese-speaking students aged 5;8-6;8 who were diagnosed with LD were recruited from a school that used Putonghua (an alternative Chinese dialect) as the MOI when learning Chinese language and were compared with 18 age-and-gender-matched Cantonese-speaking students with LD from a school that used Cantonese as the MOI when learning Chinese language. All the students also learned English (L2) as a subject at school. Proficiency in Cantonese was tested at the beginning and the end of the semester in Grade One in terms of: (1) grammar, (2) expressive vocabulary, (3) auditory textual comprehension, (4) word definition and (5) narration. OUTCOMES & RESULTS: Mixed-model ANOVAs revealed an effect of time on language proficiency indicating positive gains in both groups. Interaction effects between time and group were not significant. There was a trend that children learning Putonghua showed slightly more improvement in auditory textual comprehension. CONCLUSIONS & IMPLICATIONS: Proficiency gains were similar across groups. The study found no evidence that a multilingual learning environment hinders the language proficiency in L1 in students who have LD.
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Educación , Trastornos del Desarrollo del Lenguaje , Multilingüismo , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Hong Kong , Humanos , Desarrollo del Lenguaje , Pruebas del Lenguaje , Masculino , Análisis por Apareamiento , VocabularioRESUMEN
PURPOSE: The speech of some children does not follow a typical normalization trajectory, and they develop speech sound disorders (SSD). This study investigated predictive correlates of speech sound normalization in children who were at risk of SSD. METHOD: A prospective population cohort study of 845 Cantonese-speaking preschoolers was conducted over 2.5 years to examine (a) children who resolved nonadult realizations of consonants (normalized) and (b) those who had persisting speech sound difficulties (did not normalize). From these 845, a sample of 82 participants characterized as having SSD (1.25 SDs below the mean in a standardized speech assessment, with a delay in initial consonant acquisition or with one or more atypical errors) was followed for 2 years at 6-month intervals or until the completion of their initial consonant inventory. Data from 43 children who did not receive speech-language pathology services were analyzed with survival analysis to model time to normalization while controlling for covariates. The target event (outcome) was the completion of their initial consonant inventory. RESULTS: Under the no-intervention condition, the estimated median time to normalization was 6.59 years of age. Children who were more likely to normalize or normalized in a shorter time were stimulable to all errors and more intelligible as rated by caregivers using the Intelligibility in Context Scale. Those who showed atypical error patterns did not necessarily take longer to normalize. Similarly, expressive language ability was not significantly associated with speech normalization. CONCLUSIONS: Stimulability and intelligibility were more useful prognostic factors of speech normalization when compared to (a)typicality of error patterns and expressive language ability. Children with low intelligibility and poor stimulability should be prioritized for speech-language pathology services given that their speech errors are less likely to resolve naturally.
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Trastorno Fonológico , Niño , Estudios de Cohortes , Humanos , Fonética , Estudios Prospectivos , Habla , Trastornos del Habla/terapia , Trastorno Fonológico/diagnóstico , Trastorno Fonológico/terapiaRESUMEN
This study examined the early pragmatic language skills in typically developing (TD) preschool-age children, children with language impairment (LI) and children with autism spectrum disorder (ASD). Two hundred and sixty-two TD children, 73 children with LI, and 16 children with ASD were compared on early pragmatics through direct assessment (DA). Post hoc analysis revealed that children in two clinical groups displayed significant pragmatic language deficits. Children in the ASD group who were older exhibited comparable degree of impairments as their LI peers, suggesting a relatively stagnant development of pragmatic language skills in children with ASD. Findings also supported the use of DA in identifying pragmatic language deficits, which have implications for the adoption of this assessment approach in clinical settings.
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Trastorno del Espectro Autista , Trastornos del Desarrollo del Lenguaje , Aptitud , Niño , Preescolar , Humanos , Lenguaje , Trastornos del Desarrollo del Lenguaje/diagnósticoRESUMEN
OBJECTIVE: To demonstrate that oro-pharyngo-esophageal radionuclide scintigraphy (OPERS) not only detects tracheobronchial aspiration after swallowing, but also quantifies the amount of aspiration and subsequent clearance. METHODS: Data collected between 2014 and 2019 were reviewed for aspiration pneumonia at 12 and 24-months after OPERS. The predictive value for aspiration pneumonia on flexible endoscopic evaluation of swallowing (FEES), videofluoroscopic swallowing study (VFSS), and OPERS, and the overall survival of patients with or without aspiration were determined. RESULTS: Thirty-seven patients treated with radiotherapy for nasopharyngeal carcinoma (NPC) were reviewed. The incidence of aspiration detected on FEES, VFSS, and OPERS was 78.4%, 66.7%, and 44.4%, respectively. Using VFSS as a gold standard, the sensitivity and specificity of OPERS for aspiration was 73.7% and 100%. The positive and negative predictive values for aspiration were 100% and 66.7%, respectively, with an overall accuracy of 82.8%. A history of aspiration pneumonia was one factor associated with a higher chance of subsequent aspiration pneumonia within 12 months (odds ratio: 15.5, 95% CI 1.67-145.8, p < .05) and 24 months (odds ratio: 23.8, 95% CI 3.69-152.89, p < .01) of the swallowing assessment. Aspiration detected by OPERS was a significant risk factor for future aspiration pneumonia at 12 and 24 months respectively. Significantly, better survival was associated with an absence of aspiration on OPERS only, but not on FEES or VFSS. CONCLUSION: OPERS predicts the safety of swallowing, the incidence of subsequent aspiration pneumonia, and the survival prognosis in post-irradiated NPC dysphagia patients. LEVEL OF EVIDENCE: 3.
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BACKGROUND: Voice Handicap Index (VHI) has been used extensively in research and clinical settings. It has been suggested to be used as a diagnostic tool in the literature. However, little is known if it could be applied as a diagnostic tool to the Cantonese-speaking population. The study aims to establish cutoff points and the diagnostic accuracy for VHI-30 and VHI-10 to discriminate between Cantonese-speaking dysphonic and nondysphonic individuals. METHODS: Data from 256 adults from Hong Kong were extracted from a database at a local institution. There were a total of 91 nondysphonic individuals and 165 dysphonic individuals. Receiver operating characteristics curve analysis was conducted to establish cutoff points for VHI-30 and VHI-10. Diagnostic accuracy statistics such as sensitivity, specificity, positive, and negative predicted values (PPV and NPV) and likelihood ratios (LRs) were also reported. RESULTS: The dysphonic group scored higher than the nondysphonic group on the mean scores of both versions of VHI. Receiver operating characteristics curve analysis revealed a moderate to strong area under curve of 0.89 in both VHI-30 and VHI-10. A cutoff point of 18.5 point was yielded for VHI-30 (Sensitivity = 86.1%, Specificity = 81.3%, PPV = 89.3%, NPV = 76.3%, LR+ = 4.60, LR- = 0.17) and a cutoff point of 7.5 point was yielded for VHI-10 (Sensitivity = 80.6%, Specificity = 87.9%, PPV = 92.4%, NPV = 71.4%, LR+ = 6.66, LR- = 0.22). CONCLUSIONS: Both the Chinese VHI-30 and VHI-10 for Cantonese speakers showed promising diagnostic accuracy. VHI can be used as adjunct to clinical diagnosis and treatment outcome measures for voice disorders in the Cantonese-speaking population.
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Trastornos de la Voz , Calidad de la Voz , Adulto , Evaluación de la Discapacidad , Hong Kong , Humanos , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Trastornos de la Voz/diagnósticoRESUMEN
OBJECTIVES/HYPOTHESIS: To evaluate the voice and speech outcomes after tubed supraglottic laryngeal closure (TSLC) surgery to treat chronic aspiration after radiotherapy for head and neck cancer. STUDY DESIGN: A retrospective case-control study. METHODS: The data of patients who underwent radiotherapy for head and neck cancer and who later required total laryngectomy or TSLC for chronic aspiration between 2004 and 2017 were retrieved from a dysphagia clinic. Preoperative and postoperative voice and speech were assessed by the GRBAS and INFVo rating scales. Control subjects who underwent radiotherapy alone or total laryngectomy with a tracheoesophageal prosthesis for other indications were recruited for comparison. RESULTS: Of 15 patients who underwent a TSLC with a mean age of 57.3 years (45-75 years), 13 were male and 2 female. All patients had a history of nasopharyngeal carcinoma. The success rate of speech production using their own larynx following an intact TSLC was 64%. There was no statistically significant difference in voice and speech ratings between preoperative and TSLC subjects on the GRBAS (P = .32) and INFVo scales (P = .57), although the quality of voice appeared to deteriorate after TSLC. However, the INFVo scale for impression, intelligibility and unsteadiness of the voice after TSLC was statistically significantly better than for laryngectomy with tracheoesophageal speech. CONCLUSIONS: A tubed supraglottic laryngeal closure controls chronic aspiration while preserving the larynx for phonation, and results in a better voice and speech quality than a laryngectomy with a voice prosthesis. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:E1616-E1623, 2021.
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Laringoplastia/métodos , Carcinoma Nasofaríngeo/terapia , Neoplasias Nasofaríngeas/terapia , Traumatismos por Radiación/cirugía , Aspiración Respiratoria/cirugía , Anciano , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Laringectomía/efectos adversos , Laringoplastia/efectos adversos , Laringe/fisiopatología , Laringe/efectos de la radiación , Laringe/cirugía , Laringe Artificial/efectos adversos , Masculino , Persona de Mediana Edad , Fonación/fisiología , Periodo Posoperatorio , Traumatismos por Radiación/etiología , Aspiración Respiratoria/etiología , Estudios Retrospectivos , Inteligibilidad del Habla/fisiología , Resultado del Tratamiento , Calidad de la Voz/fisiología , Reconocimiento de VozRESUMEN
BACKGROUND: To investigate a novel velopharyngeal squeeze maneuver (VPSM) and novel endoscopic pharyngeal contraction grade (EPCG) scale for the evaluation of pharyngeal motor function. METHODS: During endoscopic examination of 77 post-irradiated nasopharyngeal carcinoma patients and control subjects, VPSM was rated and lateral pharyngeal wall movement graded with EPCG scale during swallowing. Pharyngeal constriction ratio (PCR) measured by videofluoroscopy was used for correlation. RESULTS: VPSM and EPCG scale showed almost perfect intra-rater and inter-rater reliability (Kappa: >0.90). VPSM was present in 61% of patients suggesting good pharyngeal motor function. VPSM was predictive of EPCG scale (Wald statistic = 29.99, p < 0.001). EPCG scale also correlated strongly with PCR (r: 0.812) and was predictive for aspiration (odds ratio: 22.14 [95% CI 5.01-97.89, p < 0.001]). CONCLUSIONS: VPSM and EPCG scale are two novel tools to assess pharyngeal motor function, and both correlate well with pharyngeal contractility and aspiration.
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Trastornos de Deglución , Neoplasias Nasofaríngeas , Deglución , Trastornos de Deglución/diagnóstico , Trastornos de Deglución/etiología , Humanos , Carcinoma Nasofaríngeo/radioterapia , Neoplasias Nasofaríngeas/radioterapia , Faringe/diagnóstico por imagen , Reproducibilidad de los ResultadosRESUMEN
Chronic stress can alter the immune system, adult hippocampal neurogenesis and induce anxiety- and depressive-like behaviour in rodents. However, previous studies have not discriminated between the effect(s) of different types of stress on these behavioural and biological outcomes. We investigated the effect(s) of repeated injection vs. permanent social isolation on behaviour, stress responsivity, immune system functioning and hippocampal neurogenesis, in young adult male mice, and found that the type of stress exposure does indeed matter. Exposure to 6 weeks of repeated injection resulted in an anxiety-like phenotype, decreased systemic inflammation (i.e., reduced plasma levels of TNFα and IL4), increased corticosterone reactivity, increased microglial activation and decreased neuronal differentiation in the dentate gyrus (DG). In contrast, exposure to 6 weeks of permanent social isolation resulted in a depressive-like phenotype, increased plasma levels of TNFα, decreased plasma levels of IL10 and VEGF, decreased corticosterone reactivity, decreased microglial cell density and increased cell density for radial glia, s100ß-positive cells and mature neuroblasts-all in the DG. Interestingly, combining the two distinct stress paradigms did not have an additive effect on behavioural and biological outcomes, but resulted in yet a different phenotype, characterized by increased anxiety-like behaviour, decreased plasma levels of IL1ß, IL4 and VEGF, and decreased hippocampal neuronal differentiation, without altered neuroinflammation or corticosterone reactivity. These findings demonstrate that different forms of chronic stress can differentially alter both behavioural and biological outcomes in young adult male mice, and that combining multiple stressors may not necessarily cause more severe pathological outcomes.
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Conducta Animal , Aislamiento Social , Animales , Ansiedad , Trastornos de Ansiedad , Corticosterona , Hipocampo , Masculino , Ratones , Neurogénesis , Estrés PsicológicoRESUMEN
OBJECTIVE: To evaluate the effectiveness and safety of acupuncture treatment for dysphagia as a complication of stroke. Methods and Design. This is a multicenter, pragmatic, nonrandomized, self-controlled clinical trial. A total of 39 patients were recruited from several Chinese medicine outpatient clinics and hospital-affiliated speech therapy outpatient clinics in Hong Kong. 26 patients completed all the 24 sessions of acupuncture treatment within two months, and only 12 of them were used as self-control. For the self-control group, the retrospective clinical data was taken from the electronic patient records with patient consent. The descriptive swallowing function data were converted into the quantitative Royal Brisbane Hospital Outcome Measure for Swallowing (RBHOMS) scores by two registered speech therapists through a validation process. And the data were validated by reaching consensus between the two speech therapists. All subjects underwent a baseline assessment before commencement of treatment, and outcome assessments were conducted upon the completion of treatment. The primary outcome measure is the RBHOMS score, which is a swallowing disability rating scale for monitoring difficulties in daily swallowing function. Secondary outcome measures include the Chinese version of the Swallow Quality-of-Life Questionnaire and adverse events. All the primary and secondary outcomes were assessed at baseline as well as at the end of acupuncture treatment (month 2). RESULTS: A total of 39 participants aged 46 to 89 years were enrolled in the study, and the male-to-female ratio was 15 : 11. The mean baseline RBHOMS score of all 39 participants was 5.92 ± 2.23. The mean retrospective RBHOMS score of the 12 subjects who were used as self-control was 5.67 ± 1.72 before enrollment, while the mean RBHOMS score of the 26 participants who completed all the 24 sessions of treatment was 6.92 ± 2.07. There were statistically significant differences between the RBHOMS score at the completion of treatment and baseline (p=0.006), and retrospective data (p=0.042). Moreover, a significant difference was also found in terms of swallow quality-of-life score before and after acupuncture treatment (p < 0.01). CONCLUSIONS: This pilot study provides preliminary evidence for the effectiveness of acupuncture for poststroke dysphagia. The findings from this trial can be used as a foundation for future full-scale randomized controlled clinical trials to assess the efficacy and safety of acupuncture for poststroke dysphagia. Ethics and Dissemination. The ethical approval of the clinical research study was granted by the Research Ethics Committee of both New Territories East and West Cluster of Hong Kong. Written informed consent was obtained from all participants, and the study was undertaken according to the ICH-GCP Guidelines. Trial Registration. This trial is registered with ChiCTR-TRC-12002621 and the registration date is 2012-10-26.
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OBJECTIVES/HYPOTHESIS: This study aimed to evaluate the effects of neuromuscular electrical stimulation (NMES) on vocal functions in patients with nasopharyngeal carcinoma following radiation therapy. STUDY DESIGN: Prospective, randomized controlled trial. METHODS: One hundred forty newly treated NPC patients were recruited and randomized into NMES or traditional swallowing exercise (TE) group. Participants received intensive NMES or traditional swallowing therapy and were followed up until 12 months postrandomization. Fifty-seven participants completed the treatment and all of the follow-up assessments. The Voice Handicap Index-30 (VHI-30) was used to measure the vocal functions of the participants. RESULTS: The NMES group showed no significant changes to their vocal functions, whereas the TE group showed a short-term deterioration of voice functions at the 6-month follow-up. VHI-30 scores returned to the baseline level for both groups at the 12-month follow-up. CONCLUSIONS: NMES is shown to provide a short-term benefit on vocal functions for NPC patients following radiation therapy. LEVEL OF EVIDENCE: 1b Laryngoscope, 127:1119-1124, 2017.
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Trastornos de Deglución/terapia , Terapia por Estimulación Eléctrica , Neoplasias Nasofaríngeas/complicaciones , Trastornos de la Voz/etiología , Trastornos de la Voz/terapia , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma , Trastornos de Deglución/etiología , Trastornos de Deglución/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Carcinoma Nasofaríngeo , Neoplasias Nasofaríngeas/patología , Neoplasias Nasofaríngeas/radioterapia , Estadificación de Neoplasias , Estudios Prospectivos , Resultado del Tratamiento , Trastornos de la Voz/fisiopatologíaRESUMEN
PURPOSE: To study the demographic characteristics of ocular trauma in Central Sarawak and identify the determinant factors of poor visual outcome. DESIGN: A retrospective study of ocular trauma cases presenting at the referral hospital in 2013. METHODS: Patients were identified and recruited from hospital records. Those presenting for follow-up review were excluded. Case records were retrieved and reviewed after recruitment. RESULTS: We studied 168 patients with 179 ocular injuries, of which 44% were work related. Compared with non-work-related cases, work-related cases were more likely to be male [odds ratio (OR), 19.7; 95% confidence interval (CI), 2.6-150.9] and foreign (OR, 18.0; 95% CI, 2.3-142.0). Open globe injuries constituted a higher percentage of impaired visual acuity (VA) during the first visit: 84.6% compared with 18.1% for closed globe injuries (OR, 25.0; 95% CI, 5.3-118.4; P < 0.001). Of the open globe injuries, 61.5% worsened or showed no improvement in VA after 3 months compared with closed globe injuries (28.9%) (OR, 3.9; 95% CI, 1.2-12.7; P = 0.015). Of cases presenting 7 or more days after trauma, 76.9% worsened or showed no improvement in VA after 3 months compared with those presenting in less than 7 days (27.7%) (OR, 8.7; 95% CI, 2.3-33.0; P < 0.001). Among those with work-related injuries, 23.1% had used eye protective devices (EPDs). CONCLUSIONS: Ocular injuries in Central Sarawak were predominantly work related, occurring at industrial premises, and involving males and foreigners. Both open globe injuries and a delay in seeking treatment resulted in significantly poorer visual outcomes.
Asunto(s)
Lesiones Oculares/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Lesiones Oculares/etiología , Lesiones Oculares/fisiopatología , Femenino , Humanos , Malasia/epidemiología , Masculino , Persona de Mediana Edad , Traumatismos Ocupacionales/epidemiología , Oportunidad Relativa , Pronóstico , Estudios Retrospectivos , Índices de Gravedad del Trauma , Agudeza Visual/fisiología , Adulto JovenRESUMEN
OBJECTIVE: To examine if angiotensin converting enzyme inhibitor reduces the risk of pneumonia in older patients on tube-feeding because of dysphagia from cerebrovascular diseases. DESIGN: Randomized placebo-controlled trial. SETTING: Acute and subacute geriatrics units, speech therapists' clinic, and nursing home. PARTICIPANTS: Older patients on tube-feeding for >2 weeks because of dysphagia secondary to cerebrovascular diseases. INTERVENTION: Participants were randomized to lisinopril 2.5 mg or placebo once daily for 26 weeks. MEASUREMENTS: Participants were followed up at weeks 12 and 26. The primary outcome was the incidence rate of pneumonia as determined by pneumonic changes on x-ray and clinical criteria. The secondary outcomes were mortality rate and swallowing ability as defined by the Royal Brisbane Hospital Outcome Measure for Swallowing at week 12. RESULTS: A total of 93 older patients were randomized. In interim analysis, 71 completed the trial, whereas 15 had dropped out. Among those who had completed the trial, odds ratio (OR) for death was significantly higher in the intervention group (unadjusted OR 2.94, P = .030; fully adjusted OR 7.79, P = .018). There was no difference in the incidence of pneumonia or fatal pneumonia in the 2 groups. The intervention group had a marginally better swallowing function at week 12 (Royal Brisbane Hospital Outcome Measure for Swallowing score: 4.2 ± 1.5 in intervention group, 3.5 ± 1.5 in placebo group, P = .053). As a result of the interim finding on mortality, the trial was prematurely terminated with 7 participants still in the trial. CONCLUSIONS: Low dose lisinopril given to older tube-fed patients with neurologic dysphagia resulted in increased mortality, although swallowing function showed marginal improvement. ACE inhibitors did not prevent pneumonia in older patients with neurologic dysphagia and might increase mortality.