Anne J. Hill

Assessing Acquired Language Disorders in Adults via the Internet

Aphasia, a language disturbance, frequently occurs following acquired brain impairment in adults. Because management of aphasia is often long-term, provision of ongoing and equitable access to treatment creates a significant challenge to speech-language pathologists (SLPs). This study aimed to determine the validity and reliability of assessing aphasia using standardized language assessments via an Internet-based videoconferencing system using a bandwidth of 128 kbits/sec. Thirty-two participants with aphasia due to stroke or traumatic brain injury were assessed simultaneously in either a face-to-face or online-led environment by two SLPs. Short forms of the Boston Diagnostic Aphasia Examination (BDAE-3) and the Boston Naming Test (BNT, 2nd edition) were administered. An eight-item participant satisfaction questionnaire was completed by 15 participants assigned to the online-led assessment. Results failed to identify any significant differences between the 24 subtest scores of the BDAE-3 and the BNT scores obtained in the online and face-to-face test environments (p > 0.01). Weighted kappa statistics indicated moderate to very good agreement (0.59-1.00) between the two assessors for the 24 subtests and eight rating scales of the BDAE-3, the BNT, and for aphasia diagnosis. Good to very good inter- and intra-rater reliability for the online assessment was found across the majority of assessment tasks. Participants reported high overall satisfaction, comfort level, and audio and visual quality in the online environment. This study supports the validity and reliability of delivering standardized assessments of aphasia online and provides a basis for ongoing development of telerehabilitation as an alternate mode of service delivery to persons with aphasia.

Assessment of communication and swallowing post-laryngectomy: a telerehabilitation trial

Ten laryngectomy patients were assessed using a purpose-designed, multimedia videoconferencing system incorporating a freestanding, self-focusing camera. Swallowing, stoma and communication status were assessed simultaneously by a remote clinician and face-to-face, by a second clinician at the patients site. The remote trial took place over a distance of approximately 1700 km using a commercial 3G phone network. A satisfaction questionnaire was also completed. There was excellent agreement between the two assessing clinicians. Image quality obtained via the freestanding camera was rated as lower than direct observation, but it was sufficient to assess the stoma and status of the voice prosthesis. During the trial, occasional difficulties with audio delays and image distortion were experienced, although these were manageable. Both patient and clinician satisfaction with remote assessment was high. The results provide further evidence to support the use of telerehabilitation for evaluating the speech and swallowing status of laryngectomy patients following discharge from acute care.

Using telerehabilitation to assess apraxia of speech in adults

BACKGROUND Telerehabilitation is the remote delivery of rehabilitation services via information technology and telecommunication systems. There have been a number of studies that have used videoconferencing to assess speech and language skills in people with acquired neurogenic communication disorders. However, few studies have focused on cases of apraxia of speech. In order to perform accurately differential diagnosis via the telerehabilitation medium, it is important that validation of the assessment of apraxia of speech be established as part of the overall evidence base for telerehabilitation communication assessment protocols. AIMS To determine if valid and reliable assessment of apraxia of speech using a standardized assessment tool was feasible via telerehabilitation. METHODS & PROCEDURES Eleven participants with an acquired apraxia of speech were assessed simultaneously via telerehabilitation and face-to-face methods on the Apraxia Battery for Adults - 2 (ABA-2). A custom-built telerehabilitation system developed at the University of Queensland enabled real-time telerehabilitation assessment over a 128 kbit/s internet connection. Data analysis included tests of significant difference between raw scores using the Wilcoxon signed rank statistic and analysis of the degree of agreement between the two methods using weighted Kappa statistics. Inter- and intra-rater reliabilities were also examined for the telerehabilitation-led assessments. OUTCOMES & RESULTS Results revealed no significant differences between the subtest scores of the ABA-2 obtained in the telerehabilitation and face-to-face test environments (p = 0.06-0.68). Weighted Kappa statistics indicated moderate to very good agreement (0.59-1.00) between the two environments for the subtests of the ABA-2. The reliability study was hampered by small sample size; however, the data were suggestive of reasonable reliability. Participants reported high overall satisfaction, comfort level, and audio and visual quality in the telerehabilitation environment. The speech-language pathologists (SLP) reported some difficulties assessing participants with severe apraxia of speech via the telerehabilitation system. CONCLUSIONS & IMPLICATIONS This study suggests that valid assessment of apraxia of speech using the ABA-2 over the internet is feasible. The reliability study on the telerehabilitation assessments was encouraging with results suggesting that telerehabilitation assessment using the ABA-2 could be reliable. Findings from the participant satisfaction questionnaire were favourable. However, comments from the SLP suggested that participants exhibiting severe apraxia of speech might be better suited to face-to-face assessment. These findings may have implications for the development of evidence-based guidelines for the use of telerehabilitation in the assessment of apraxia of speech. The authors propose that future research should include larger sample sizes with a range of participant severity levels and be conducted over higher bandwidth connections to explore further the validity and reliability of telerehabilitation assessment of apraxia of speech.

The effects of aphasia severity on the ability to assess language disorders via telerehabilitation

Background: Telerehabilitation is the remote delivery of rehabilitation services via information technology and telecommunication systems. There have been a number of recent studies that have used video conferencing to assess language skills in people with aphasia. These studies have highlighted the possibility that severity of impairment and aetiology may have an effect on the administration of telerehabilitation language assessment protocols. Furthermore, anecdotal accounts of difficulties in administering language assessment via telerehabilitation also demonstrate the need for research into the effects of severity of aphasia. It is important that the effects of severity of aphasia are determined as part of the overall evidence base for telerehabilitation language assessment protocols. Aims: To investigate the influence of severity of aphasia on the ability to assess acquired aphasia via telerehabilitation methods. Methods & Procedures: A total of 32 participants with an acquired aphasia were assessed simultaneously via telerehabilitation and face‐to‐face methods on the Boston Diagnostic Aphasia Examination 3rd Edition Short Form (BDAE‐3) and the Boston Naming Test (BNT) (2nd Edition Short Form). A custom‐built telerehabilitation system developed at the University of Queensland enabled real‐time telerehabilitation assessment over a 128 kbit/s Internet connection. Participants were grouped according to their severity level. Data analysis was conducted on the differences in scores from the two assessors. Outcomes & Results: Results revealed that severity of aphasia did not greatly influence the accuracy of the telerehabilitation assessment for the majority of the BDAE‐3 clusters. However, severity of aphasia appeared to affect the ability to assess naming and paraphasia via telerehabilitation methods. Post‐hoc analysis revealed that the scores given in the face‐to‐face and telerehabilitation environments were comparable within each severity level. Conclusions: Results suggest that severity of aphasia may influence the ability to assess some language parameters via telerehabilitation. Further research should use larger sample sizes to confirm these results and to refine the telerehabilitation technology to enable these parameters to be adequately assessed. Additionally, clinician satisfaction with telerehabilitation assessment should be qualitatively researched so as to widen clinician acceptance of this method.

The Redesign and Re-evaluation of an Internet-Based Telerehabilitation System for the Assessment of Dysarthria in Adults

A previous study revealed that reliable assessment of dysarthria was feasible. However, that study also revealed a number of system limitations and suggested that technological enhancements and improvements in study design and clinical assessment protocols were needed before validity and reliability of assessment of dysarthria via telerehabilitation could be confirmed. In the current study, improvements in technology, study design, and clinical assessment protocols were implemented in order to re-examine the validity and reliability of assessing and diagnosing dysarthria via the telerehabilitation medium. The aim of this study was to explore the validity and reliability of assessing dysarthria using both formal standardized and informal assessments via a purpose-built telerehabilitation system. Twenty-four participants with an acquired dysarthria were assessed simultaneously via telerehabilitation and face-to-face (FTF) on a battery of assessments. A custom-built telerehabilitation system enabled real-time telerehabilitation assessment over a 128 Kbps Internet connection. Data analysis included an analysis of strength of agreement between the two methods using percentage agreement and weighted ? statistics. Inter-rater and intrarater reliability were also examined for both the FTF and telerehabilitation-led assessments. Good strength of agreement was found between the FTF and telerehabilitation assessment methods. High intrarater and inter-rater reliability within both the FTF and telerehabilitation assessment methods supported these findings. Participants reported high overall satisfaction in the telerehabilitatin environment. This study describes the improvements made to the telerehabilitation system reported previously and confirms that valid and reliable assessment of dysarthria using both standardized and informal assessments over the Internet is possible using this system.

Research into telehealth applications in speech-language pathology

A literature review was conducted to investigate the extent to which telehealth has been researched within the domain of speech-language pathology and the outcomes of this research. A total of 13 studies were identified. Three early studies demonstrated that telehealth was feasible, although there was no discussion of the cost-effectiveness of this process in terms of patient outcomes. The majority of the subsequent studies indicated positive or encouraging outcomes resulting from telehealth. However, there were a number of shortcomings in the research, including a lack of cost benefit information, failure to evaluate the technology itself, an absence of studies of the educational and informational aspects of telehealth in relation to speech-language pathology, and the use of telehealth in a limited range of communication disorders. Future research into the application of telehealth to speech-language pathology services must adopt a scientific approach, and have a well defined development and evaluation framework that addresses the effectiveness of the technique, patient outcomes and satisfaction, and the cost benefit relationship.

A pilot trial of a speech pathology telehealth service for head and neck cancer patients

Summary We explored the feasibility of providing access to specialist speech pathology services via telehealth for patients with head and neck cancer. A weekly telehealth clinic was conducted between the speech pathology departments of a tertiary hospital and a regional hospital in Queensland. Over a 5-month period, 50 telehealth sessions were conducted for 18 patients. There were 38 patient consultations, nine case discussions between clinicians and three clinical training sessions relating to the skills needed for specific client management (e.g. voice prosthesis selection). Eight sessions had multidisciplinary involvement. All cases were successfully managed via telehealth. All patients agreed that they were comfortable using telehealth and would be happy to use it again in future. Both clinicians agreed that they could competently assess patients using the telehealth system. There appeared to be financial benefits for the patient, because by receiving specialist intervention at a local facility their travel expenses were lower. There was also the opportunity for workforce training and development through online case discussion and clinical consultation.

Clinical and quality of life outcomes of speech treatment for Parkinson’s disease delivered to the home via telerehabilitation: a noninferiority randomized controlled trial

PURPOSE This study investigated the noninferiority and validity of an intensive speech treatment for people with Parkinsons disease (PD) delivered via telerehabilitation to the home. The effect of location on online delivery was also investigated. METHOD In this single-blinded, randomized controlled noninferiority trial, 31 participants with dysarthria associated with PD from a metropolitan area were randomly assigned to either face-to-face or online Lee Silverman Voice Treatment (LSVT LOUD). A cohort of 21 participants from nonmetropolitan areas was also recruited and treated online. Outcomes were assessed using acoustic, perceptual, and quality of life measures. RESULTS Noninferiority of online treatment was confirmed through comparable clinical and quality of life outcomes for the metropolitan online and face-to-face treatment groups. Significant improvements posttreatment were achieved for several acoustic, perceptual, and quality of life measures across the groups. No significant effect of online treatment location was identified. CONCLUSIONS Clinical and quality of life outcomes supported the noninferiority and validity of online delivery of intensive speech treatment to people with PD in the home. Future research should address the implementation of online treatment in a clinical service, cost analyses, and potentially technology-enabled clinical pathways for people with PD in order to maintain optimal communication and quality of life.

Real-time telerehabilitation for the treatment of musculoskeletal conditions is effective and comparable to standard practice: a systematic review and meta-analysis:

Objective: To evaluate the effectiveness of treatment delivered via real-time telerehabilitation for the management of musculoskeletal conditions, and to determine if real-time telerehabilitation is comparable to conventional methods of delivery within this population. Data sources: Six databases (Medline, Embase, Cochrane CENTRAL, PEDro, psycINFO, CINAHL) were searched from inception to November 2015 for literature which reported on the outcomes of real-time telerehabilitation for musculoskeletal conditions. Review methods: Two reviewers screened 5913 abstracts where 13 studies (n = 1520) met the eligibility criteria. Methodological quality was assessed using the Downs & Black ‘Checklist for Measuring Quality’ tool. Results were pooled for meta-analysis based upon primary outcome measures and reported as standardised mean differences and 95% confidence intervals (CI). Results: Aggregate results suggest that telerehabilitation is effective in the improvement of physical function (SMD 1.63, 95%CI 0.92-2.33, I2=93%), whilst being slightly more favourable (SMD 0.44, 95%CI 0.19-0.69, I2=58%) than the control cohort following intervention. Sub-group analyses reveals that telerehabilitation in addition to usual care is more favourable (SMD 0.64, 95%CI 0.43-0.85, I2=10%) than usual care alone, whilst treatment delivered solely via telerehabilitation is equivalent to face-to-face intervention (SMD MD 0.14, 95% CI −0.10–0.37, I2 = 0%) for the improvement of physical function. The improvement of pain was also seen to be comparable between cohorts (SMD 0.66, 95%CI −0.27–1.60, I2=96%) following intervention. Conclusions: Real-time telerehabilitation appears to be effective and comparable to conventional methods of healthcare delivery for the improvement of physical function and pain in a variety of musculoskeletal conditions.

A pilot study of telepractice delivery for teaching listening and spoken language to children with hearing loss

Telemedicine (“telepractice”) allows improved access to specialised early intervention services such as Auditory-Verbal Therapy (AVT) for children with hearing loss. We investigated the effectiveness of a tele-AVT programme (eAVT) in the spoken language development of a group of young children with hearing loss. In a retrospective study we compared the language outcomes of children with bilateral hearing loss receiving eAVT with a control group who received therapy In Person. Seven children in each group (mean age 2.4 years) were matched on pre-amplification hearing level for the better hearing ear, age at optimal amplification and enrolment in the AVT programme. The eAVT sessions were conducted via Skype. Results on the Preschool Language Scale-4 were compared at 2 years post optimal amplification. There were no significant differences in language scores between the two groups. Language scores for the children in the eAVT group were within the normal range for children with normal hearing. The results suggest that early intervention AVT via telepractice may be as effective as delivery In Person for children with hearing loss.