Early speech and language intervention in Brazilian-Portuguese toddlers with cleft lip and/or palate

What works for whom? A systematic review on personalized speech intervention in children and adolescents with a cleft palate

OBJECTIVE

Personalized health care involves intervention that is tailored to the unique characteristics of the individual. Even though personalized interventions have gained more attention in the past decades, this topic has not yet been systematically studied in the area of speech and language intervention in children with a cleft (lip and) palate (CP ± L). The aim of this systematic review is to summarize the evidence of the effects of personalized speech intervention in children with a CP ± L, aged 3-18 years, with a narrow focus on anterior oral, posterior oral, and non-oral cleft speech characteristics.

METHODS

This systematic literature review was developed following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (via PubMed), and Embase were searched and the grey literature was checked. The search strategy was based on three concepts: cleft palate, speech intervention, and children. Two raters independently determined the eligibility and extracted all relevant data from the included studies. The methodological quality of the included study was also assessed using the QualSyst tool.

RESULTS

Four studies were included in this review. The overall quality of the included studies was good. Children with severe, non-oral cleft speech characteristics were found to benefit from motor-phonetic based intervention strategies. Linguistic-phonological strategies, in contrast, were more effective in improving speech and health-related quality of life in children with less severe, anterior oral or posterior oral cleft speech characteristics.

CONCLUSION

There is some evidence that personalized speech intervention yields better outcomes than a "one-size-fits-all" approach. Further research, especially randomized (sham-)controlled trials, is necessary to confirm these results.

Systematic Review and Meta-Analysis of Enhanced Milieu Teaching

PURPOSE

Early language intervention is essential for children with indicators of language delay. Enhanced milieu teaching (EMT) is a naturalistic intervention that supports the language development of children with emerging language. We conducted a systematic review and meta-analysis of all qualifying single-case and group design studies that evaluate the experimental effects of EMT on child outcomes.

METHOD

We evaluated the risk of bias in the included studies and conducted a descriptive analysis of study quality, effect sizes, and demographics. We reviewed a total of 29 single-case and 17 group design studies in which 1,590 children participated.

RESULTS

Out of 46 studies, 39 met the What Works Clearinghouse standards without reservations, showing low levels of risk of bias. The effects were comparable when EMT was implemented alone and when it was implemented with another intervention component, and EMT was more effective when implemented by caregivers than when implemented by therapists. Most studies did not report sufficient participant demographics.

CONCLUSIONS

The EMT research literature published thus far is of high study quality; the effects across studies are comparable; and the intervention has been studied via a wide range of delivery modalities, contexts, implementers, and samples. Future research could systematically examine the effects of EMT and explore these varying intervention delivery, implementer, and learner characteristics as moderators.

Personalized, performance-specific speech intervention in children with a cleft palate: A systematic review protocol

BACKGROUND

The provision of speech intervention in children requires personalized, child-tailored approaches. Different speech-intervention approaches exist to eliminate cleft-related speech errors in children with a cleft palate. However, it is unclear what approach works best for the subtypes of cleft-related speech errors.

AIMS

To describe a protocol for a systematic review that provides speech-language pathologists with the current literature concerning more individualized speech intervention in children with a cleft palate.

METHODS & PROCEDURES

A systematic literature review was performed following the preferred reporting items for systematic reviews and meta-analyses. Two speech-language pathologists with clinical and scientific experience in cleft speech searched different electronic databases for relevant studies. No limit regarding publication date was set. Specific eligibility criteria were defined and used to include or exclude the studies. All included studies were evaluated with a risk-of-bias assessment tool and levels of evidence. Relevant data were extracted from the studies (study design, study population characteristics, intervention characteristics and outcome characteristics) and a narrative synthesis was performed.

CONCLUSIONS & IMPLICATIONS

The findings of this systematic review will significantly contribute to the evidence on personalized speech intervention in children with a cleft palate. The study will inform speech-language pathologists on the possibilities to tailor treatment plans more to the specific subtype of cleft-related speech errors. The planned systematic review also makes recommendations for further cleft speech intervention research.

WHAT THIS PAPER ADDS

What is already known on this subject At present, there is growing evidence for different speech therapy approaches in children with a cleft palate. Despite the recognized need for personalized, child-tailored therapy, there is no consensus on the best speech therapy approach per different subtype of compensatory cleft speech characteristic. What this study adds to the existing knowledge This paper provides a protocol for a systematic literature review of this topic. Specifically, it searches the literature for the use of personalized speech therapy approaches in children with different subtypes of compensatory cleft speech characteristics. What are the practical and clinical implications of this work? The systematic literature review provides speech-language pathologists with the current literature concerning personalized, performance-specific speech intervention in children with a cleft palate. Besides, the results will support therapy decision-making in children with a cleft palate in different speech-related clinical contexts.

A meta-analysis of the relationship between speech and language development in children with nonsyndromic cleft palate with or without cleft lip

OBJECTIVE

Children with nonsyndromic cleft palate with or without cleft lip are at risk of speech production and language delays. In typical development, a strong relationship exists between speech and expressive language development. However, the understanding of this relationship in children with nonsyndromic cleft palate with or without cleft lip is incomplete. The objective of this study was to determine the average correlation between consonant inventory and two expressive language skills in children with NSCP ± L.

DESIGN

The study used a random effects meta-analyses design. Articles were included by searching PubMed, APA PsycINFO, and ERIC.

MAIN OUTCOME MEASURES

Correlations between consonant inventory and (1) expressive vocabulary and (2) mean length of utterance.

RESULT

Based on eight studies representing 187 children with nonsyndromic cleft palate with or without cleft lip, consonant inventory was positively correlated with expressive vocabulary size (k = 8, z = 0.74, SE = .16, p < .001, [0.424, 1.052]). Using data from four studies, representing 83 children with nonsyndromic cleft palate with or without cleft lip, consonant inventory had a positive nonsignificant correlation with mean length of utterance (k = 4, z = 0.513, SE = 0.293, p = .081, [-0.063, 1.088]).

CONCLUSION

Results support a connection between consonant inventory and expressive vocabulary size in children with nonsyndromic cleft palate with or without cleft lip across four languages. Small consonant inventories are often associated with expressive language delays.

A Comparative Effectiveness Study of Speech and Surgical Outcomes: Study Overview

AIMS

To provide an overview of the Cleft Outcomes Research NETwork (CORNET) and the CORNET Speech and Surgery study. The study is (1) comparing speech outcomes and fistula rate between two common palate repair techniques, straight-line closure with intra-velar veloplasty (IVVP) and Furlow Double-Opposing Z-palatoplasty (Furlow Z-plasty); (2) summarizing practice variation in the utilization of early intervention speech-language (EI-SL) services; and (3) exploring the association between EI-SL services and speech outcomes.

DESIGN

Prospective, longitudinal, observational, comparative effectiveness, multi-center.

SITES

Twenty sites across the United States.

PARTICIPANTS

One thousand two hundred forty-seven children with cleft palate with or without cleft lip (CP ± L). Children with submucous cleft palate or bilateral sensorineural severe to profound hearing loss were excluded from participation.

INTERVENTIONS

Straight-line closure with IVVP or Furlow Z-plasty based on each surgeon's standard clinical protocol.

MAIN OUTCOME MEASURE(S)

The primary study outcome is perceptual ratings of hypernasality judged from speech samples collected at 3 years of age. Secondary outcomes are fistula rate, measures of speech production, and quality of life. The statistical analyses will include generalized estimating equations with propensity score weighting to address potential confounders.

CURRENT PROGRESS

Recruitment was completed in February 2023; 80% of children have been retained to date. Five hundred sixty two children have completed their final 3-year speech assessment. Final study activities will end in early 2025.

CONCLUSIONS

This study addresses long-standing questions related to the effectiveness of the two most common palatoplasty approaches and describes CORNET which provides an infrastructure that will streamline future studies in all areas of cleft care.

Management of Speech and Hearing in Low-Income and Middle-Income Countries: Current Conditions, Problems, Future Directions

Management of speech and hearing issues in low-income and middle-income countries (LMICs) has been challenging, considering the population size and availability of resources. There is a need to investigate the depth of these challenges and explore the efficacy of strategies to overcome them. This review aimed to delineate the speech and hearing issues in individuals with cleft lip and palate and how they have been managed in the context of LMICs. Keywords were developed based on the objectives of the study to search for literature published during the period 2010 to 2023. Articles from PubMed, Google Scholar, Science Direct, and ProQuest databases were retrieved using appropriate keyword searches. The titles and abstracts were screened to delete the unsuitable articles. Relevant gray literature and hand-searched articles published were also included. The findings are summarized under the following heads in the context of LMICs: incidence and severity of speech and hearing issues, challenges, and barriers in providing speech and hearing services, methods of developing manpower and training, methods of assessing speech and hearing outcomes, service delivery models employed, and the recent advances relating to management of speech and hearing. A wide range of topics revolving around managing speech and hearing issues in individuals with cleft lip and palate has been researched in the context of LMICs. Scattered and fragmented solutions have been provided to overcome the varied challenges in LMICs. The gaps in the literature and the future directions for research have been identified.

Book-Sharing for Toddlers with Clefts (BOOST): Protocol for a randomized controlled trial of a remote intervention to promote language development in children with cleft palate

BACKGROUND

Children with cleft palate, with or without cleft lip (CP±L), exhibit language delays on average compared to children without clefts. Interventions to address these disparities are scarce. In this multi-center study, Book Sharing for Toddlers with Clefts (BOOST), we will test a remote, parent-focused intervention to promote language development in children with CP±L.

OBJECTIVES

The study will test two primary hypotheses. First, toddlers randomized to BOOST will exhibit better language outcomes than children receiving standard-of-care (SOC). Second, we hypothesize that the BOOST program's effect on language outcomes is mediated by the frequency and quality of parent-child reading interactions.

METHODS

The study is a randomized-controlled trial comparing the BOOST group to a SOC comparison group. We will enroll N = 320 English and/or Spanish-speaking children ages 24-32 months with isolated CP±L (n = 160 per group). Both groups will receive children's books, and parents will record and upload videos of themselves reading the books with their children using a smartphone app developed for the study. Parents will also complete surveys asking whether they read to their children on five randomly selected days each week. In addition, the BOOST group will participate in 3 remote dialogic book-sharing intervention sessions via Zoom. We will code book-sharing videos to assess parents' target skill usage and children's expressive language. End-of-study assessments will include measures of child language outcomes (e.g., clinician-administered measures, parent reports, and naturalistic child language samples).

RESULTS

Enrollment began in April 2024 and will continue through approximately April 2028.

CONCLUSION

The BOOST study will address a critical gap in the literature on interventions to improve language in children with CP±L. The results will inform the care for toddlers with oral clefts and have potential applications for other populations.

The impact of enhanced Milieu teaching with phonological emphasis (EMT + PE) on the speech and language outcomes for toddlers with cleft palate in Brazil and the United States of America

PURPOSE

The purpose of this study was to compare the speech and language outcomes of children with cleft palate with or without cleft lip (CP+/-L) in the USA to children with CP+/-L in Brazil who underwent intervention with enhanced Milieu teaching with phonological emphasis (EMT + PE), as there are few cross-country intervention comparisons for children with CP+/-L.

METHOD

This is a retrospective analysis of 29 participants from the USA and 24 participants from Brazil who were matched on age. The US participants were between the ages of 13-35 months (M = 23.76), spoke Standard American English in the home, and were recruited from East Tennessee State University and Vanderbilt University. The Brazilian participants were between the ages of 20-34 months (M = 25.04), spoke Brazilian Portuguese in the home, and were recruited from the Hospital de Reabilitação de Anomalias Craniofaciais-Universidade de São Paulo. All treatment participants received EMT + PE from trained speech-language pathologists in hospital-university clinics.

RESULT

The treatment groups demonstrated greater gains than comparison groups in percent consonants correct, number of different words, and expressive/receptive vocabulary. There was no main effect nor interaction by country.

CONCLUSION

The application of EMT + PE in a second culture and language is a viable early intervention option for participants with CP+/-L.

Telepractice Parent Training of Enhanced Milieu Teaching With Phonological Emphasis (EMT+PE) For Persian-Speaking Toddlers With Nonsyndromic Cleft Palate: Protocol for a Randomized Controlled Trial

BACKGROUND

Children born with a cleft palate with or without a cleft lip (CP/L) are at increased risk for delayed language development and speech sound disorders. Enhanced Milieu Teaching with Phonological Emphasis (EMT+PE) is a recommended naturalistic intervention for toddlers with CP/L. The parents' role in providing naturalistic interventions is critical and they need training based on learning principles to implement these interventions. Telepractice is an appropriate method for training parents and children with various speech-related disorders.

OBJECTIVE

This study aims to determine and compare the effectiveness of telepractice and the parent-implemented EMT+PE intervention on language and speech measures in toddlers with CP/L with usual interventions and determine the effectiveness maintenance of the intervention.

METHODS

A randomized controlled trial (RCT) will assess the efficacy of telepractice and the parent-implemented EMT+PE intervention in enhancing speech and language measures in toddlers with CP/L. Eligible participants will be randomly assigned to one of 2 groups: the conventional intervention group and the EMT+PE intervention group. Participants' speech and language measures will be evaluated remotely by trained raters before and after the intervention and 2 months after the intervention. Parents of participants in the intervention group will receive 3 months of training in speech and language supportive strategies from trained therapists using telehealth fidelity scales. Parents of participants in the control group will receive the conventional speech and language intervention by cleft team therapists. Study outcomes will include language variables (mean length of utterance) and speech production variables (percent correct consonants).

RESULTS

The protocol was approved by the Research Ethics Committee of the University of Social Welfare and Rehabilitation Sciences in February 2022. The selection process of participants, as well as training therapists and raters, commenced in January 2022, the therapy and follow-up period ended in June 2023, and pre- and postintervention assessments have been conducted. Data analysis is ongoing, and we expect to publish our results by the summer of 2024. Funding is yet to be received.

CONCLUSIONS

The results of this study may help us develop a speech and language intervention with a different delivery model for toddlers with CP/L, and the cleft team care can use these results in service delivery. Consistent with our hypothesis, speech and language measures are expected to improve.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/54426.

Teaching Spanish-Speaking Caregivers to Implement EMT en Español: A Small Randomized Trial

PURPOSE

The primary purpose of this study was to examine the effects of using the Teach-Model-Coach-Review approach to teach Spanish-speaking caregivers from low-income households to implement EMT en Español with their young children with language delays. A secondary purpose was to explore the effects of the caregiver-implemented intervention on children's vocabulary. A final and more exploratory goal was to gain insight into caregivers' perceptions of the intervention.

METHOD

21 caregiver-child dyads participated in the intent-to-treat randomized control trial. Their children were 30-43 months old with language delays. Dyads were randomly assigned to receive 24 caregiver training sessions delivered at home in Spanish or a wait list control group. Pre, post and 3-month follow assessments included observational measures of caregiver-child interactions and child standardized vocabulary assessments. Caregivers completed surveys rating their perception of the intervention.

RESULTS

Caregivers in the intervention group had significantly higher percentages of matched turns, expansions, and targets at post-assessment and of expansions and targets at follow-up compared to the control group. Overall, children in the intervention condition had significantly higher receptive vocabulary scores and performed better than children in the control condition on observational measure of their lexical diversity, with moderate effect sizes for most outcomes. Caregivers perceived the intervention as effective and culturally appropriate.

CONCLUSIONS

Teach-Model-Coach-Review is effective in increasing Spanish-speaking caregivers' use of EMT en Español strategies with their young children with language delays. The intervention also appears to be effective for child vocabulary outcomes and acceptable to caregivers.

A systematic review of early speech interventions for children with cleft palate

BACKGROUND

Children with cleft palate with or without cleft lip (CP±L) are at high risk of problems with early speech sound production, and these difficulties can persist into later childhood. Early intervention could help to reduce the number of children whose problems become persistent. However, much research in the field to date has focused on older children. There is a need to determine if providing intervention during the phase of early typical speech development leads to better outcomes.

AIMS

To review the evidence for the effectiveness of interventions targeting speech, delivered in the first 3 years of life for children with CP±L, and discuss factors such as intervention type, facilitator, dosage, outcome measures and the age of the child.

METHODS & PROCEDURES

The systematic review was registered with PROSPERO (CRD42019121964). Eight bibliographic databases including CINAHL and MEDLINE were searched in August 2018. Studies were included if participants received speech and language interventions before 37 months and if they reported outcomes for speech. Two reviewers independently completed inclusion reviews, quality analysis and data extraction.

OUTCOME & RESULTS

The review included seven papers: one pilot randomized controlled trial, one controlled trial, four cohort studies and one case series report. Interventions largely took a naturalistic approach, namely focused stimulation and milieu teaching. The findings provide preliminary support for naturalistic interventions and suggest that these interventions can be delivered by parents with suitable training. Studies included in the review provided low-strength evidence with variation in both the type of intervention, the manner of delivery and in the risk of bias in the designs used.

CONCLUSIONS & IMPLICATIONS

The papers included in this review suggest that early naturalistic interventions can have positive impacts on the speech development of children with CP±L. However, the reported methodological quality of the publications overall was weak, and the current evidence lacks clarity and specificity in terms of therapy technique, delivery and optimum age of delivery. Future research should use more robust methodological designs to determine whether early speech interventions are beneficial for children born with CP±L.

WHAT THIS PAPER ADDS

What is already known on the subject Children with CP±L show difficulties with early speech development and often have restricted speech sound inventories. They may reach the canonical babbling stage later than children without CP±L and studies have shown that 20% of children with CP±L have speech which is considered unintelligible or barely intelligible at age 5. It has been proposed that early intervention can lessen the impact of CP±L on speech development. However, currently, the evidence for early interventions for children with CP±L is limited, with the majority of studies focusing on children aged 3 years and older. What this paper adds to existing knowledge This paper reviews the evidence for different types of early interventions for speech provided to children born with CP±L and whether these interventions are effective in supporting speech sound development. In this review, early intervention is defined as intervention provided to children in the first 3 years of life. This review describes intervention approaches and how they are delivered for this population. What are the potential or actual clinical implications of this work? In the UK, children born with CP±L and their families are supported by National Health Service (NHS) services over a 20-year period and speech and language therapy sessions may take place over many weeks and months. If providing early intervention in the first 3 years of life is effective, there is the potential for improved speech outcomes in early childhood and a reduced burden of care on children, families and services. This review considers the evidence for early speech intervention for children with CP±L in the first 3 years of life and identifies areas for future research.

Enhanced Milieu Teaching with Phonological Emphasis: A Pilot Telepractice Parent Training Study for Toddlers with Clefts

OBJECTIVE

the purpose of this study was to evaluate the effects of training caregivers to use intervention strategies from the Enhanced Milieu Teaching with Phonological Emphasis (EMT + PE) program, delivered via telepractice, and to examine the effects on child speech and language outcomes for children with repaired cleft lip +/- palate (CL/P).

DESIGN

A multiple baseline within subject design across parent behaviors was replicated across three participating dyads. A pre-post intervention comparison was provided with a non-cleft twin.

PARTICIPANTS

Three mother-child dyads participated in this study. Children ranged in age from 21 to 27 months at the beginning of the study and all had a diagnosis of CL/P. A noncleft twin without CL/P was assessed pre- and post-intervention to provide a normative comparison.

RESULTS

Parents demonstrated a positive intervention effect by substantially increasing their use of EMT + PE intervention strategies during telepractice intervention sessions (Tau 0.675 to 1.1333). Following the conclusion of intervention, parents were able to maintain their use of strategies once direct coaching had been discontinued. Children demonstrated increased talking rate, improved speech production and expanded expressive vocabulary measures over the course of intervention. Speech and language development of a child without cleft palate was provided as a comparison.

CONCLUSIONS

Parents were trained through telepractice to effectively deliver EMT + PE speech and language facilitation strategies that resulted in increased language and speech outcomes for their children with CL/P.