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Kelly E, Nazeer S, Fazzini B, Sutt AL, Olusanya S, Campion T, Puthucheary Z. Assessing the oral and suprahyoid muscles in healthy adults using muscle ultrasound to inform the swallowing process: a proof-of-concept study. Sci Rep 2024; 14:13198. [PMID: 38851791 PMCID: PMC11162466 DOI: 10.1038/s41598-024-62032-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 05/13/2024] [Indexed: 06/10/2024] Open
Abstract
The oral and suprahyoid muscles are responsible for movements of swallowing. Our study aimed to determine the reproducibility of static and dynamic measurements of these muscles using bedside ultrasound equipment. Forty healthy participants were recruited prospectively. Primary outcomes were evaluation of mass measurements of the anterior bellies of the digastric, mylohyoid, geniohyoid and tongue in B-mode ultrasound. Secondary outcomes were evaluation of geniohyoid muscle layer thickness and function using M-mode. Muscle mass measurements demonstrated little within-participant variability. Coefficient of Variance (CoV) across muscles were: anterior belly digastric (5.0%), mylohyoid (8.7%), geniohyoid (5.0%) and tongue (3.2%). A relationship between sex (r2 = 0.131 p = 0.022) was demonstrated for the geniohyoid muscle, with males having higher transverse Cross Sectional Area (CSA) (14.3 ± 3.6 mm vs. 11.9 ± 2.5 mm, p = 0.002). Tongue size was correlated with weight (r2 = 0.356, p = 0.001), height (r2 = 0.156, p = 0.012) and sex (r2 = 0.196, p = 0.004). Resting thickness of the geniohyoid muscle layer changed with increasing bolus sizes (f = 3.898, p = 0.026). Velocity increased with bolus size (p = < 0.001, F = 8.974). However swallow time and slope distance did not, potentially influenced by higher coefficients of variation. Oral and suprahyoid muscle mass are easily assessed using bedside ultrasound. Ultrasound may provide new information about muscle mass and function during swallowing.
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Affiliation(s)
- Eileen Kelly
- Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, London, E1 1BB, UK.
- Critical Care and Perioperative Medicine Research Group, William Harvey Research Institute, Queen Mary University of London, London, UK.
- Department of Speech and Language Therapy, The Royal London Hospital, Barts Health NHS Trust, London, UK.
| | - Saira Nazeer
- Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, London, E1 1BB, UK
- Critical Care and Perioperative Medicine Research Group, William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Brigitta Fazzini
- Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, London, E1 1BB, UK
- Critical Care and Perioperative Medicine Research Group, William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Anna-Liisa Sutt
- Department of Speech and Language Therapy, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Critical Care Research Group, Institute of Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Segun Olusanya
- Consultant in Intensive Care Medicine and ECMO, Department of Perioperative Medicine, Barts Heart Centre, London, UK
| | - Thomas Campion
- Consultant Head and Neck Neck/Neuroradiologist, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Zudin Puthucheary
- Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, London, E1 1BB, UK
- Critical Care and Perioperative Medicine Research Group, William Harvey Research Institute, Queen Mary University of London, London, UK
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de Andrade RA, Pernambuco LDA, de Almeida ANS, Mulatinho MEDCP, Dos Santos ENF, da Silva HJ. Methodological Procedures to Acquire and Analyze Ultrasound Images of Swallowing: A Scoping Review. Dysphagia 2024:10.1007/s00455-024-10714-1. [PMID: 38802587 DOI: 10.1007/s00455-024-10714-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/19/2024] [Indexed: 05/29/2024]
Abstract
This scoping review aimed to identify methodological procedures for acquiring and analyzing ultrasound images related to swallowing in adults and older adults. The inclusion criteria were based on the PCC strategy (participants, concept, and context), as follows: population (adults and older adults), concept (ultrasound assessment), and context (swallowing assessment). The review included observational, experimental, descriptive, and analytical studies and excluded those that were not available in full, animal studies, in vitro studies, letters to the editor, errata, study protocols, and those that used ultrasound for purposes other than swallowing. There were no language and time restrictions. Two independent blinded professionals selected 81 articles that met the inclusion criteria from different databases. The most evaluated parameters included tongue morphology and movements, hyoid bone displacement, swallowing muscle area, and pharyngeal residue detection, such as pharyngeal wall mobility. They used convex and linear transducers (3 MHz to 8 MHz) positioned in the submental, laryngeal, and lateral regions of the neck. The subjects were seated and instructed to eat different food volumes and consistencies. The literature mapping showed that ultrasound is a promising diagnostic tool, helping clinicians understand swallowing disorders, as it provides static and dynamic images in different modes and positions. Also, patients receive real-time biofeedback of changes related to dysphagia.
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Affiliation(s)
- Rodrigo Alves de Andrade
- Department of Speech-Language-Hearing Sciences, Federal University of Pernambuco, Av. Prof. Artur de Sá, S/N - Cidade Universitária, Recife, PE, CEP 50674-420, Brazil.
| | - Leandro de Araújo Pernambuco
- Federal University of Pernambuco, UFPE, Av. Prof. Artur de Sá, S/N - Cidade Universitária, Recife, PE, CEP 50674-420, Brazil
| | | | | | | | - Hilton Justino da Silva
- Federal University of Pernambuco, UFPE, Av. Prof. Artur de Sá, S/N - Cidade Universitária, Recife, PE, CEP 50674-420, Brazil
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Pauloski BR, Yahnke KM. Reliability of Measuring Geniohyoid Cross-Sectional Area with B-Mode Ultrasound. Dysphagia 2024:10.1007/s00455-024-10712-3. [PMID: 38789680 DOI: 10.1007/s00455-024-10712-3] [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: 08/26/2023] [Accepted: 04/19/2024] [Indexed: 05/26/2024]
Abstract
B-mode ultrasound is a safe noninvasive procedure that has been used to characterize aspects of the oropharyngeal swallow. The submental suprahyoid muscles are often investigated with ultrasound because of their contributions to hyolaryngeal elevation. There are several techniques for positioning the ultrasound transducer in the coronal plane, however, there is limited research on how reliability of measurement of the cross-sectional area (CSA) of the geniohyoid differs across transducer placement technique. This study examined three methods of transducer placement in the coronal plane by two examiners to determine the reliability of measurement of CSA of the geniohyoid muscle. Forty healthy adults participated in the study. Each participant's geniohyoid muscles were imaged using B-mode ultrasound under three transducer placement conditions in the coronal plane by two examiners. Geniohyoid CSA was measured from each ultrasound image. A three-way mixed-methods ANOVA was used to determine whether there were significant differences in geniohyoid CSA among transducer position conditions, trials, and examiners. There were significant differences among the transducer placement conditions, indicating that each condition was measuring a different portion of the muscle. There were no significant differences among repeated trials nor between examiners within each method of transducer placement. All three conditions of transducer placement were reliable at measuring geniohyoid CSA across trials and examiners. This study emphasizes the need for consistency of placement, whichever method is selected. It also highlights the need for researchers to provide a precise description of methods for positioning the transducer so that placement is reproducible.
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Affiliation(s)
- Barbara R Pauloski
- Department of Communication Sciences and Disorders, College of Health Sciences, University of Wisconsin Milwaukee, 2400 E. Hartford Avenue, Suite 840, Milwaukee, WI, 53211, USA.
| | - Kacey M Yahnke
- Department of Communication Sciences and Disorders, College of Health Sciences, University of Wisconsin Milwaukee, 2400 E. Hartford Avenue, Suite 840, Milwaukee, WI, 53211, USA
- Manhattan Star Academy, 180 Amsterdam Avenue, New York, NY, 10023, USA
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Sung JH, Baek SH, Park JW, Lee JH, Son MH, Kim BJ. Dynamic suprahyoid muscle ultrasound in assessing oropharyngeal dysphagia in neurological disorders. Eur J Phys Rehabil Med 2024; 60:233-244. [PMID: 38332698 PMCID: PMC11114157 DOI: 10.23736/s1973-9087.24.08216-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/19/2023] [Accepted: 01/16/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Appropriate evaluation and management of dysphagia are essential in neurological disorders. However, there is currently a lack of a simple yet reliable method for dysphagia evaluation. AIM This study aimed to investigate the usefulness of new dynamic M-mode ultrasonography (US) parameters of suprahyoid muscle (SHM) to evaluate dysphagia. DESIGN Prospective observational, cross-sectional study. SETTING Inpatient setting at neurology department of tertiary medical center. POPULATION A total of 89 patients with dysphagia and 175 healthy volunteers were enrolled in the study. Patients were subdivided into mild and severe dysphagia groups depending on the need for dietary changes and disease classification, which included amyotrophic lateral sclerosis, peripheral neuromuscular diseases, and stroke. METHODS Dynamic M-mode US was performed during swallowing to obtain the SHM thickness (the baseline thickness of the SHM), SHM displacement (peak-to-peak amplitude of SHM movement), SHM difference (SHM displacement - SHM thickness), SHM ratio (SHM displacement/SHM thickness), peak-to-peak time, and total duration. A videofluoroscopic swallowing study (VFSS) was performed. RESULTS Significant differences were found in SHM displacement and SHM difference according to dysphagia severity (P<0.001). The SHM ratio, total duration (P<0.001), and peak-to-peak time (P=0.001) differed significantly according to the patients' underlying diseases. The pharyngeal delay time and penetration-aspiration scale from the VFSS demonstrated significant negative correlations with SHM displacement and difference (P<0.001). By combining SHM difference and total duration, patients with dysphagia could be distinguished from healthy controls, with the highest negative predictive value of 95.6%. CONCLUSIONS Dynamic M-mode US of the SHM provided added value in evaluating the severity of dysphagia and differentiating swallowing mechanics of dysphagia related to underlying neurological disorders. CLINICAL REHABILITATION IMPACT Dynamic M-mode US of the SHM can serve as a supportive tool for rapid screening and repetitive follow-up of patients with dysphagia, which would contribute to dysphagia rehabilitation in patients with various neurological disorders.
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Affiliation(s)
- Joo Hye Sung
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
- Department of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, South Korea
| | - Seol-Hee Baek
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Jin-Woo Park
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Jung Hun Lee
- Neurophysiology Laboratory, Korea University Anam Hospital, Seoul, South Korea
| | - Myeong Hun Son
- Neurophysiology Laboratory, Korea University Anam Hospital, Seoul, South Korea
| | - Byung-Jo Kim
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea -
- BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, South Korea
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Görürgöz C, Yangıncı Y, Akçam MO, Orhan K. Is it possible to reveal a typical swallowing pattern for specific skeletal malocclusion types using M-mode sonographic imaging of tongue movements? J Orofac Orthop 2023; 84:392-404. [PMID: 35394138 DOI: 10.1007/s00056-022-00387-6] [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: 06/23/2021] [Accepted: 02/13/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE The present study aims to compare the M‑mode ultrasound findings of different skeletal malocclusions and to evaluate whether sonographic parameters can be used for the diagnosis of malocclusions. METHODS Tongue movements of 36 adolescents aged between 10.37 and 17.29 years (mean 14.25 ± 1.78 years) were assessed using simultaneous two-dimensional real-time B‑mode and M‑mode sonography. The swallowing patterns of the subjects were visualized recording the motion of the tongue surface in the ultrasound images utilizing a fixed scan line through the middle of the tongue. M‑mode scans of tongue motion during empty deglutition were recorded. The parameters range, duration, and speed were computed for the entirety of the swallowing process using M‑mode examination. Findings were evaluated and statistically analyzed. RESULTS No clear intraindividual repeatability in the M‑mode imaging of the subjects' swallowing process could be observed. Considering the setup used in the study, it was not always possible to distinguish individual swallowing stages in the M‑mode images with regard to the chosen reference points. The average duration, range of motion, and speed of swallowing were found to be 2.43 s, 24.06 mm, and 10.34 mm/s, respectively. The findings showed both intra- and intersubject variability during empty swallowing. CONCLUSION With the help of the metrics that could be calculated based on the M‑mode images, it was not possible to differentiate the swallowing acts of different skeletal malocclusion types. It remains unclear whether M‑mode imaging can accurately visualize the swallowing pattern. Therefore, further progress in technology and multidisciplinary work is needed in order to establish diagnostic references regarding swallowing.
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Affiliation(s)
- Cansu Görürgöz
- Department of Dentomaxillofacial Radiology, Bursa Uludag University, Faculty of Dentistry, 16059, Bursa, Turkey.
- Bursa Uludağ Üniversitesi Diş Hekimliği Fakültesi, Mimar Sinan Mah. Emniyet Cad. Yıldırım, Bursa, Turkey.
| | | | - Mehmet Okan Akçam
- Department of Orthodontics, Ankara University, Faculty of Dentistry, Ankara, Turkey
| | - Kaan Orhan
- Department of Dentomaxillofacial Radiology, Ankara University, Faculty of Dentistry, Ankara, Turkey
- Medical Design Application and Research Center (MEDITAM), Ankara University, Ankara, Turkey
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Martins GDS, Bandeira JDF, Alves MSGL, Costa BOID, Pernambuco L. Medidas cinemáticas da deglutição obtidas por ultrassonografia: um protocolo de revisão de escopo. REVISTA CEFAC 2022. [DOI: 10.1590/1982-0216/20222456922s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
RESUMO Objetivo: identificar e sintetizar as evidências científicas sobre medidas cinemáticas da deglutição obtidas por ultrassonografia. Métodos: este protocolo seguiu a metodologia proposta pelo Joanna Briggs Institute (JBI) e as diretrizes para elaboração de revisões de escopo do Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols - extension for scoping reviews (PRISMA-ScR). As bases de dados eletrônicas pesquisadas serão: PubMed/Medline, Scopus, Web of Science, Lilacs, ScienceDirect, Embase e Google Scholar. Uma estratégia de busca foi desenvolvida para PubMed/Medline, que será adaptada para cada base de dados. Inicialmente, os artigos serão rastreados pelo título e resumo por dois revisores independentes. Em seguida, farão a leitura do texto completo dos artigos de acordo com os critérios de elegibilidade. Os dados serão extraídos dos artigos incluídos por meio de formulário padronizado. Os resultados serão apresentados em fluxograma e resumo narrativo. Considerações Finais: a execução deste protocolo apresentará o estado da arte sobre o tema pesquisado e contribuirá para a melhor compreensão das possibilidades de análise quantitativa da deglutição por meio da ultrassonografia.
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Martins GDS, Bandeira JDF, Alves MSGL, Costa BOID, Pernambuco L. Kinematic measures of swallowing obtained with ultrasound: a scoping review protocol. REVISTA CEFAC 2022. [DOI: 10.1590/1982-0216/20222456922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
ABSTRACT Purpose: to identify and synthesize scientific evidence on kinematic measures of swallowing obtained with ultrasound. Methods: a protocol following the methodology proposed by the Joanna Briggs Institute and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols - extension for scoping reviews (PRISMA-ScR). The search will be made in PubMed/MEDLINE, Scopus, Web of Science, LILACS, ScienceDirect, Embase, and Google Scholar, using a search strategy developed for PubMed/MEDLINE, which will be adapted for each database. Articles will be initially screened by title and abstract by two independent reviewers who will read their full text according to the eligibility criteria. Data in included articles will be extracted by means of a standardized form and the results presented in a flowchart and narrative summary. Final Considerations: once carried out, this protocol will present the state-of-the-art on the research topic and help better understand the possibilities to quantitatively analyze swallowing through ultrasound.
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Kodama S, Fujiwara S, Okawa J, Shitara S, Hori K, Ono T. Modulation of tongue motion and tongue pressure during liquid swallowing with different bolus volumes. J Oral Rehabil 2021; 48:1243-1251. [PMID: 34415579 DOI: 10.1111/joor.13248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 07/27/2021] [Accepted: 08/03/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The tongue functions by modulating according to bolus volume when swallowing; however, associated tongue dynamics are unclear. OBJECTIVE We aimed to clarify how tongue motion and tongue pressure change with bolus volume during swallowing. METHODS Sixteen healthy volunteers (age 29.5 ± 3.8 years; 12 males, 4 females) were recruited. Two electromagnetic articulography markers were attached, one each on the anterior and posterior parts of the tongue, to measure motion. A sensor sheet, with five pressure-sensitive points, was attached to the hard palate to measure tongue pressure. Participants were asked to swallow 3 ml and 10 ml of water. Motion trajectory, maximum velocity, vertical displacement just before contact with the hard palate, and maximum magnitude and duration of tongue pressure were analysed. RESULTS Tongue rotation was observed in the sagittal plane; its rate of appearance was significantly higher when swallowing 3 ml of water than when swallowing 10 ml, and the rate of rotation at posterior part was significantly higher than at the anterior part. The maximum velocity and vertical displacement were significantly greater when swallowing 10 ml of water than those when swallowing 3 ml of water. There was no significant difference in either the maximum magnitude of tongue pressure or maximum duration of tongue pressure between 3 ml and 10 ml. CONCLUSION Bolus volume influenced the pattern of tongue motion; however, there was no difference in tongue pressure.
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Affiliation(s)
- Shohei Kodama
- Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shigehiro Fujiwara
- Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Jumpei Okawa
- Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Satoko Shitara
- Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kazuhiro Hori
- Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takahiro Ono
- Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Shitara S, Fujiwara S, Okawa J, Kodama S, Hori K, Ono T. Coordination between lingual motion and pressure production during dipper/tipper type swallows. J Oral Rehabil 2020; 47:1479-1488. [DOI: 10.1111/joor.13079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Satoko Shitara
- Division of Comprehensive Prosthodontics Niigata University Graduate School of Dental and Medical Sciences Niigata Japan
| | - Shigehiro Fujiwara
- Division of Comprehensive Prosthodontics Niigata University Graduate School of Dental and Medical Sciences Niigata Japan
| | - Jumpei Okawa
- Division of Comprehensive Prosthodontics Niigata University Graduate School of Dental and Medical Sciences Niigata Japan
| | - Shohei Kodama
- Division of Comprehensive Prosthodontics Niigata University Graduate School of Dental and Medical Sciences Niigata Japan
| | - Kazuhiro Hori
- Division of Comprehensive Prosthodontics Niigata University Graduate School of Dental and Medical Sciences Niigata Japan
| | - Takahiro Ono
- Division of Comprehensive Prosthodontics Niigata University Graduate School of Dental and Medical Sciences Niigata Japan
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Nienstedt JC, Müller F, Rösler A, Pflug C. Presbyphagia Diagnostics Using M-Mode Ultrasound: Changes in the Tongue Movement Pattern. Dysphagia 2019; 35:696-701. [PMID: 31745715 DOI: 10.1007/s00455-019-10076-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 11/07/2019] [Indexed: 12/01/2022]
Abstract
Age-related physiological changes of the swallowing act impair particularly the oral phase and the tongue function, which is very important for bolus preparation and transfer. At present, there are no easily applicable methods for measurement of this phase of swallowing. This study was designed to investigate the deglutitive tongue movement by M-mode ultrasound and to compare the collected parameters of different age groups. In this exploratory prospective study, the tongue and its movements of 20 younger and 30 older women were examined during swallowing by B-mode and M-mode ultrasound. Preexisting dysphagia or malnutrition as well as psychic or neurological deficits were excluded by clinical examination and screening with the Mini Nutritional Assessment-Short Form (MNA-SF), the Gugging Swallowing Screen (GUSS), the Mini-Mental State Examination (MMSE) and the Barthel Index. The data were compared with each other and statistically analyzed. With increasing age, a change in the tongue movement pattern becomes apparent. In the group of older women, the vertical lingual movement had a smaller amplitude (p < 0.001) and a shorter time to the maximum amplitude (p < 0.03) than in the group of younger women. However, there were no differences in the tongue diameter (p > 0.4). The tongue movement pattern appears to be subject to age-specific changes, in contrast to anatomy. The use of M-mode ultrasonography is an easy, radiation-free and cost-effective method for the assessment of the oral phase of swallowing. Limitations are the widely scattered values of the ultrasound findings. Further studies are needed for validation and definition of standard values for this promising method.
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Affiliation(s)
- Julie Cläre Nienstedt
- Center for Clinical Neurosciences, Department of Voice, Speech and Hearing Disorders, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - Frank Müller
- Center for Clinical Neurosciences, Department of Voice, Speech and Hearing Disorders, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Alexander Rösler
- Department of Geriatrics, Bethesda Krankenhaus Bergedorf, Hamburg, Germany
| | - Christina Pflug
- Center for Clinical Neurosciences, Department of Voice, Speech and Hearing Disorders, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
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Ohkubo M, Scobbie JM. Tongue Shape Dynamics in Swallowing Using Sagittal Ultrasound. Dysphagia 2018; 34:112-118. [PMID: 29955953 DOI: 10.1007/s00455-018-9921-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 06/23/2018] [Indexed: 10/28/2022]
Abstract
Ultrasound imaging is simple, repeatable, gives real-time feedback, and its dynamic soft tissue imaging may make it superior to other modalities for swallowing research. We tested this hypothesis and measured certain spatial and dynamic aspects of the swallowing to investigate its efficacy. Eleven healthy adults wearing a headset to stabilize the probe participated in the study. Both thickened and thin liquids were used, and liquid bolus volumes of 10 and 25 ml were administered to the subjects by using a cup. The tongue's surface was traced as a spline superimposed on a fan-shaped measurement space for every image from the time at which the tongue blade started moving up toward the palate at the start of swallowing to the time when the entire tongue was in contact with the palate. To measure depression depth, the distance (in mm) was measured along each radial fan line from the location at which the tongue's surface spline intersected the fan line to the point where the hard palate intersected the fan line at each timepoint. There were differences between individual participants in the imageability of the swallow, and so we defined quantitatively "measureable" and "unmeasurable" types. The most common type was measureable, in which we could find a clear bolus depression in the cupped tongue's surface. Indeed, with 10 ml of thin liquids, we were able to find and measure the depression depth for all participants. The average maximum radial distance from the palate to the tongue's surface was 20.9 mm (median) (IQR: 4.3 mm) for swallowing 10 ml of thin liquid compared to 24.6 mm (IQR: 3.3 mm) for 25 ml of thin liquid swallow (p < 0.001). We conclude that it is possible to use ultrasound imaging of the tongue to capture spatial aspects of swallowing.
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Affiliation(s)
- Mai Ohkubo
- Division of Dysphagia Rehabilitation, Department of Oral Health and Clinical Science, Tokyo Dental College, Tokyo, Japan.
| | - James M Scobbie
- Clinical Audiology, Speech and Language (CASL) Research Centre, Queen Margaret University, Edinburgh, UK
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