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Li K, Fu C, Xie Z, Zhang J, Zhang C, Li R, Gao C, Wang J, Xue C, Zhang Y, Deng W. The impact of physical therapy on dysphagia in neurological diseases: a review. Front Hum Neurosci 2024; 18:1404398. [PMID: 38903410 PMCID: PMC11187312 DOI: 10.3389/fnhum.2024.1404398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/28/2024] [Indexed: 06/22/2024] Open
Abstract
A neurogenic dysphagia is dysphagia caused by problems with the central and peripheral nervous systems, is particularly prevalent in conditions such as Parkinson's disease and stroke. It significantly impacts the quality of life for affected individuals and causes additional burdens, such as malnutrition, aspiration pneumonia, asphyxia, or even death from choking due to improper eating. Physical therapy offers a non-invasive treatment with high efficacy and low cost. Evidence supporting the use of physical therapy in dysphagia treatment is increasing, including techniques such as neuromuscular electrical stimulation, sensory stimulation, transcranial direct current stimulation, and repetitive transcranial magnetic stimulation. While initial studies have shown promising results, the effectiveness of specific treatment regimens still requires further validation. At present, there is a lack of scientific evidence to guide patient selection, develop appropriate treatment regimens, and accurately evaluate treatment outcomes. Therefore, the primary objectives of this review are to review the results of existing research, summarize the application of physical therapy in dysphagia management, we also discussed the mechanisms and treatments of physical therapy for neurogenic dysphagia.
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Affiliation(s)
- Kun Li
- Shandong Daizhuang Hospital, Jining, China
| | - Cuiyuan Fu
- Shandong Daizhuang Hospital, Jining, China
| | - Zhen Xie
- Shandong Daizhuang Hospital, Jining, China
| | - Jiajia Zhang
- Department of Psychology, Xinxiang Medical University, Xinxiang, China
| | | | - Rui Li
- Shandong Daizhuang Hospital, Jining, China
| | | | | | - Chuang Xue
- Affiliated Mental Health Center and Hangzhou Seventh People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | | | - Wei Deng
- Affiliated Mental Health Center and Hangzhou Seventh People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Liangzhu Laboratory, MOE Frontier Science Center for Brain Science and Brain-machine Integration, State Key Laboratory of Brain-Machine Intelligence, Zhejiang University, Hangzhou, China
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Labeit B, Michou E, Trapl-Grundschober M, Suntrup-Krueger S, Muhle P, Bath PM, Dziewas R. Dysphagia after stroke: research advances in treatment interventions. Lancet Neurol 2024; 23:418-428. [PMID: 38508837 DOI: 10.1016/s1474-4422(24)00053-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 03/22/2024]
Abstract
After a stroke, most patients have dysphagia, which can lead to aspiration pneumonia, malnutrition, and adverse functional outcomes. Protective interventions aimed at reducing these complications remain the cornerstone of treatment. Dietary adjustments and oral hygiene help mitigate the risk of aspiration pneumonia, and nutritional supplementation, including tube feeding, might be needed to prevent malnutrition. Rehabilitative interventions aim to enhance swallowing function, with different behavioural strategies showing promise in small studies. Investigations have explored the use of pharmaceutical agents such as capsaicin and other Transient-Receptor-Potential-Vanilloid-1 (TRPV-1) sensory receptor agonists, which alter sensory perception in the pharynx. Neurostimulation techniques, such as transcranial direct current stimulation, repetitive transcranial magnetic stimulation, and pharyngeal electrical stimulation, might promote neuroplasticity within the sensorimotor swallowing network. Further advancements in the understanding of central and peripheral sensorimotor mechanisms in patients with dysphagia after a stroke, and during their recovery, will contribute to optimising treatment protocols.
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Affiliation(s)
- Bendix Labeit
- Department of Neurology, Medical Faculty, Heinrich Heine University Duesseldorf, Duesseldorf, North Rhine-Westphalia, Germany.
| | - Emilia Michou
- Department of Speech and Language Therapy, School of Health Rehabilitation Sciences, University of Patras, Patras, Achaia, Greece; Centre for Gastrointestinal Sciences, Faculty of Biology, Medicine and Health, University of Manchester and the Manchester Academic Health Sciences Centre (MAHSC), Manchester, Greater Manchester, UK
| | - Michaela Trapl-Grundschober
- Karl Landsteiner University of Health Sciences, Krems, Lower Austria, Austria; Division of Neurology, University Hospital Tulln, Tulln, Lower Austria, Austria
| | - Sonja Suntrup-Krueger
- Department of Neurology with Institute of Translational Neurology, University Hospital Muenster, Muenster, North Rhine-Westphalia, Germany
| | - Paul Muhle
- Department of Neurology with Institute of Translational Neurology, University Hospital Muenster, Muenster, North Rhine-Westphalia, Germany
| | - Philip M Bath
- Stroke Trials Unit, Mental Health & Clinical Neuroscience, University of Nottingham, Nottingham, Nottinghamshire, UK
| | - Rainer Dziewas
- Department of Neurology and Neurorehabilitation, Klinikum Osnabrueck - Academic teaching hospital of the University of Muenster, Osnabrueck, Lower Saxony, Germany
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Borders JC, Grande AA, Troche MS. Statistical Power and Swallowing Rehabilitation Research: Current Landscape and Next Steps. Dysphagia 2022; 37:1673-1688. [PMID: 35226185 DOI: 10.1007/s00455-022-10428-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/14/2022] [Indexed: 12/16/2022]
Abstract
Despite rapid growth in the number of treatments to rehabilitate dysphagia, studies often demonstrate mixed results with non-significant changes to functional outcomes. Given that power analyses are infrequently reported in dysphagia research, it remains unclear whether studies are adequately powered to detect a range of treatment effects. Therefore, this review sought to examine the current landscape of statistical power in swallowing rehabilitation research. Databases were searched for swallowing treatments using instrumental evaluations of swallowing and the penetration-aspiration scale as an outcome. Sensitivity power analyses based on each study's statistical test and sample size were performed to determine the minimum effect size detectable with 80% power. Eighty-nine studies with 94 treatment comparisons were included. Sixty-seven percent of treatment comparisons were unable to detect effects smaller than d = 0.80. The smallest detectable effect size was d = 0.29 for electrical stimulation, d = 0.49 for postural maneuvers, d = 0.52 for non-invasive brain stimulation, d = 0.61 for combined treatments, d = 0.63 for respiratory-based interventions, d = 0.70 for lingual strengthening, and d = 0.79 for oral sensory stimulation. Dysphagia treatments examining changes in penetration-aspiration scale scores were generally powered to reliably detect larger effect sizes and not smaller (but potentially clinically meaningful) effects. These findings suggest that non-significant results may be related to low statistical power, highlighting the need for collaborative, well-powered intervention studies that can detect smaller, clinically meaningful changes in swallowing function. To facilitate implementation, a tutorial on simulation-based power analyses for ordinal outcomes is provided ( https://osf.io/e6usd/ ).
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Affiliation(s)
- James C Borders
- Laboratory for the Study of Upper Airway Dysfunction, Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, USA.
| | | | - Michelle S Troche
- Laboratory for the Study of Upper Airway Dysfunction, Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, USA
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Hwang NK, Park JS, Choi JB, Jung YJ. Effect of Peripheral Magnetic Stimulation for Dysphagia Rehabilitation: A Systematic Review. Nutrients 2022; 14:3514. [PMID: 36079772 PMCID: PMC9460190 DOI: 10.3390/nu14173514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/25/2022] [Indexed: 11/19/2022] Open
Abstract
Recently, a therapeutic method to stimulate the suprahyoid muscle using peripheral magnetic stimulation for dysphagia rehabilitation has been reported. However, clinical evidence, application protocol, and intervention method remain unclear. Therefore, a systematic review of the published literature is needed. The objective of this study was to systematically review clinical studies of peripheral magnetic stimulation applied for rehabilitation of dysphagia. Issues to be considered in future studies are also suggested. This systematic review performed a literature search of four databases (Medline, Embase, CINAHL, and Web of Science) to identify relevant studies published on the application of repetitive peripheral magnetic stimulation (rPMS) for swallowing-related muscles between 2010 and 2022. Seven studies were reviewed. Randomized controlled trials and one-group pre-post, case study designs were included. In the included studies, rPMS was applied to strengthen the submental suprahyoid muscles. The intervention regime varied. The rPMS was applied at a frequency of 30 Hz for 2 s. Rest time ranged from 8 s to 27-28 s. The number of intervention sessions ranged from 2-3 to 30. The intensity ranged from pain-inducing minimum intensity (90% of maximum stimulus output) to non-painful intensity (70-80% of maximum intensity). The rPMS on the suprahyoid muscles had positive effects on physiological changes in the swallowing function, such as displacement of the hyoid bone, muscle strength (cervical flexor, jaw-opening force), swallowing safety, swallowing performance, and swallowing-related quality of life. Participants also reported little pain and adverse reactions during rPMS. Although rPMS is a therapeutic option that can help improve the swallowing function as a non-invasive stimulation method in the rehabilitation of dysphagia, clinical evidence is needed for the development of clear stimulation protocols and guidelines.
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Affiliation(s)
- Na-Kyoung Hwang
- Department of Occupational Therapy, Seoul North Municipal Hospital, Seoul 02062, Korea
| | - Ji-Su Park
- Research Institute for Korean Medicine, Pusan National University, Yangsan 50612, Korea
| | - Jong-Bae Choi
- Department of Occupational Therapy, Sangji University, Wonju 26339, Korea
| | - Young-Jin Jung
- School of Healthcare and Biomedical Engineering, Chonnam National University, Yeosu 59626, Korea
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Miller S, Peters K, Ptok M. Review of the effectiveness of neuromuscular electrical stimulation in the treatment of dysphagia - an update. GERMAN MEDICAL SCIENCE : GMS E-JOURNAL 2022; 20:Doc08. [PMID: 35875244 PMCID: PMC9284430 DOI: 10.3205/000310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/20/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND Neuromuscular electrical stimulation (NMES) has been used as a treatment option in the therapy of dysphagia for several years. In a previous review of the literature, it was concluded that NMES might be a valuable adjunct in patients with dysphagia and in patients with vocal fold paresis. However, due to different stimulation protocols, electrode positioning and various underlying pathological conditions, it was difficult to compare the studies which were identified and it was concluded that more empirical data is needed to fully understand the benefits provided by NMES. The purpose of this systematic review is, therefore, to evaluate recent studies regarding a potential effectiveness of transcutaneous NMES applied to the anterior neck as a treatment for dysphagia considering these different aspects. METHOD For this systematic review, a selective literature research in PubMed has been carried out on 5th May 2021 using the terms electrical stimulation AND dysphagia and screened for inclusion criteria by two reviewers in Rayyan. The search resulted in 62 hits. RESULTS Studies were excluded due to their publication language; because they did not meet inclusion criteria; because the topical focus was a different one; or because they did not qualify as level 2 studies. Eighteen studies were identified with varying patient groups, stimulation protocols, electrode placement and therapy settings. However, 16 studies have reported of beneficial outcomes in relation with NMES. DISCUSSION The purpose of this systematic review was to evaluate the most recent studies regarding a potential effectiveness of NMES as a treatment for oropharyngeal dysphagia considering different aspects. It could generally be concluded that there is a considerable amount of level 2 studies which suggest that NMES is an effective treatment option, especially when combined with TDT for patients with dysphagia after stroke and patients with Parkinson's disease, or with different kinds of brain injuries. Further research is still necessary in order to clarify which stimulation protocols, parameters and therapy settings are most beneficial for certain patient groups and degrees of impairment.
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Affiliation(s)
- Simone Miller
- Klinik für Phoniatrie und Pädaudiologie, Hannover, Germany,*To whom correspondence should be addressed: Simone Miller, Klinik für Phoniatrie und Pädaudiologie, MHH OE 6510, 30623 Hannover, Germany, Phone: +49 511 532-5778, Fax: +49 511 532-4609, E-mail:
| | | | - Martin Ptok
- Klinik für Phoniatrie und Pädaudiologie, Hannover, Germany
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Doan TN, Ho WC, Wang LH, Chang FC, Tran TTQ, Chou LW. Therapeutic Effect and Optimal Electrode Placement of Transcutaneous Neuromuscular Electrical Stimulation in Patients with Post-Stroke Dysphagia: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Life (Basel) 2022; 12:life12060875. [PMID: 35743906 PMCID: PMC9225155 DOI: 10.3390/life12060875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 12/29/2022] Open
Abstract
Background: To date, there is no conclusive evidence that transcutaneous neuromuscular electrical stimulation (TNMES) benefits patients with post-stroke dysphagia (PSD). In addition, the optimal TNMES electrode placement has not been well-established. This systematic review and meta-analysis were conducted to investigate these two research gaps. Methods: Five major databases were systematically searched for randomized controlled trials (RCTs) through January 2022. Effect sizes were computed using Hedges’ g statistic, which were then entered into the random-effects model to obtain pooled effect estimates. Results: Twenty-four RCTs met the eligibility criteria. On the improvement of swallowing function, TNMES alone was not superior to conventional swallowing therapies (CSTs); combined therapy of TNMES and CSTs significantly surpassed CSTs alone (standardized mean difference (SMD) = 0.91, 95% confidence interval (95% CI): 0.68 to 1.14, p < 0.0001; I2 = 63%). Moreover, significant pooled effect sizes were observed in subgroups with horizontal electrode placement above the hyoid bone (SMD = 0.94, 95% CI: 0.72 to 1.16; I2 = 0%) and horizontal electrode placement just above and below the hyoid bone (SMD = 0.87, 95% CI: 0.59 to 1.14; I2 = 0%). The largest pooled effect size was observed in the subgroup that individualized electrode placement according to dysphagia evaluation (SMD = 1.65, 95% CI: 0.38 to 2.91; I2 = 90%). Conclusion: TNMES should be used in combination with CSTs for PSD. Horizontal electrode placement should target suprahyoid muscles or both suprahyoid and thyrohyoid muscles.
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Affiliation(s)
- Thanh-Nhan Doan
- Department of Public Health, China Medical University, Taichung 406040, Taiwan; (T.-N.D.); (W.-C.H.)
- Department of Rehabilitation, Quang Nam Northern Mountainous Region General Hospital, Quang Nam 560000, Vietnam
| | - Wen-Chao Ho
- Department of Public Health, China Medical University, Taichung 406040, Taiwan; (T.-N.D.); (W.-C.H.)
| | - Liang-Hui Wang
- Department of Speech Language Pathology and Auditory, HungKuang University, Taichung 433304, Taiwan;
- Ph.D. Program for Aging, China Medical University, Taichung 404332, Taiwan;
| | - Fei-Chun Chang
- Ph.D. Program for Aging, China Medical University, Taichung 404332, Taiwan;
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung 404332, Taiwan
| | - Trang Thi Quynh Tran
- Faculty of Rehabilitation, University of Medicine and Pharmacy, Hue University, Thành phố Huế 530000, Vietnam;
| | - Li-Wei Chou
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung 404332, Taiwan
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Taichung 406040, Taiwan
- Department of Physical Medicine and Rehabilitation, Asia University Hospital, Asia University, Taichung 413505, Taiwan
- Correspondence: or
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Wen X, Liu Z, Zhong L, Peng Y, Wang J, Liu H, Gong X. The Effectiveness of Repetitive Transcranial Magnetic Stimulation for Post-stroke Dysphagia: A Systematic Review and Meta-Analysis. Front Hum Neurosci 2022; 16:841781. [PMID: 35370584 PMCID: PMC8967953 DOI: 10.3389/fnhum.2022.841781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/17/2022] [Indexed: 11/19/2022] Open
Abstract
Background Repetitive transcranial magnetic stimulation (rTMS) applied to the mylohyoid cortical region has positive clinical effects on post-stroke. Therefore, we conducted a meta-analysis to investigate the efficacy of rTMS for patients with post-stroke dysphagia. Methods According to PRISMA guidelines, we searched the databases of MEDLINE (PubMed), Cochrane Library, Embase, Web of Science, CNKI, Wangfang. We searched for studies of randomized controlled trials (RCTs) of rTMS to treat dysphagia after stroke and screened by inclusion and exclusion criteria. Features of RCTs were extracted. The heterogeneity of the trials was measured by I 2 statistic. Results In total, 11 RCTs with 463 dysphagia patients fulfilled our inclusion criteria. In our analysis, rTMS demonstrated a great beneficial effect for post-stroke dysphagia when combined with traditional swallowing exercises. Moreover, a greatly significant difference (P = 0.008) was noted based on stimulation frequency (high frequency vs. low frequency). Additionally, no significant difference (P = 0.53) was observed based on stimulation site (affected vs. unaffected hemisphere). Conclusions Overall, rTMS can effectively accelerate the improvement of swallowing function in patients with post-stroke swallowing disorders.
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Affiliation(s)
- Xin Wen
- Department of Rehabilitation Medicine, Yue Bei People's Hospital, Shaoguan, China
- School of Rehabilitation Medicine Gannan Medical University, Ganzhou, China
| | - Zicai Liu
- Department of Rehabilitation Medicine, Yue Bei People's Hospital, Shaoguan, China
- School of Rehabilitation Medicine Gannan Medical University, Ganzhou, China
| | - Lida Zhong
- Department of Rehabilitation Medicine, Yue Bei People's Hospital, Shaoguan, China
| | - Yang Peng
- Department of Rehabilitation Medicine, Yue Bei People's Hospital, Shaoguan, China
| | - Jing Wang
- Department of Rehabilitation Medicine, Yue Bei People's Hospital, Shaoguan, China
| | - Huiyu Liu
- Department of Rehabilitation Medicine, Yue Bei People's Hospital, Shaoguan, China
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Speyer R, Sutt AL, Bergström L, Hamdy S, Heijnen BJ, Remijn L, Wilkes-Gillan S, Cordier R. Neurostimulation in People with Oropharyngeal Dysphagia: A Systematic Review and Meta-Analyses of Randomised Controlled Trials-Part I: Pharyngeal and Neuromuscular Electrical Stimulation. J Clin Med 2022; 11:jcm11030776. [PMID: 35160228 PMCID: PMC8836998 DOI: 10.3390/jcm11030776] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/15/2022] [Accepted: 01/27/2022] [Indexed: 12/22/2022] Open
Abstract
Objective. To assess the effects of neurostimulation (i.e., neuromuscular electrical stimulation (NMES) and pharyngeal electrical stimulation (PES)) in people with oropharyngeal dysphagia (OD). Methods. Systematic literature searches were conducted to retrieve randomised controlled trials in four electronic databases (CINAHL, Embase, PsycINFO, and PubMed). The methodological quality of included studies was assessed using the Revised Cochrane risk-of-bias tool for randomised trials (RoB 2). Results. In total, 42 studies reporting on peripheral neurostimulation were included: 30 studies on NMES, eight studies on PES, and four studies on combined neurostimulation interventions. When conducting meta analyses, significant, large and significant, moderate pre-post treatment effects were found for NMES (11 studies) and PES (five studies), respectively. Between-group analyses showed small effect sizes in favour of NMES, but no significant effects for PES. Conclusions. NMES may have more promising effects compared to PES. However, NMES studies showed high heterogeneity in protocols and experimental variables, the presence of potential moderators, and inconsistent reporting of methodology. Therefore, only conservative generalisations and interpretation of meta-analyses could be made. To facilitate comparisons of studies and determine intervention effects, there is a need for more randomised controlled trials with larger population sizes, and greater standardisation of protocols and guidelines for reporting.
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Affiliation(s)
- Renée Speyer
- Department Special Needs Education, Faculty of Educational Sciences, University of Oslo, 0318 Oslo, Norway
- Curtin School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, WA 6102, Australia
- Department of Otorhinolaryngology and Head and Neck Surgery, Leiden University Medical Centre, 1233 ZA Leiden, The Netherlands;
- Correspondence:
| | - Anna-Liisa Sutt
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD 4032, Australia;
- School of Medicine, University of Queensland, Brisbane, QLD 4072, Australia
| | - Liza Bergström
- Remeo Stockholm, 128 64 Stockholm, Sweden;
- Speech Therapy Clinic, Danderyd University Hospital, 182 88 Stockholm, Sweden
| | - Shaheen Hamdy
- GI Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK;
| | - Bas Joris Heijnen
- Department of Otorhinolaryngology and Head and Neck Surgery, Leiden University Medical Centre, 1233 ZA Leiden, The Netherlands;
| | - Lianne Remijn
- School of Allied Health, HAN University of Applied Sciences, 6525 EN Nijmegen, The Netherlands;
| | - Sarah Wilkes-Gillan
- Discipline of Occupational Therapy, Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia;
| | - Reinie Cordier
- Curtin School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, WA 6102, Australia
- Department of Social Work, Education and Community Wellbeing, Faculty of Health & Life Sciences, Northumbria University, Newcastle upon Tyne NE7 7XA, UK;
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Ebihara S, Naito T. A Systematic Review of Reported Methods of Stimulating Swallowing Function and their Classification. TOHOKU J EXP MED 2022; 256:1-17. [DOI: 10.1620/tjem.256.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Satoru Ebihara
- Department of Rehabilitation Medicine, Toho University Graduate School of Medicine
| | - Toru Naito
- Section of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College
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