1
|
Wei KC, Wang TG, Hsiao MY. The Cortical and Subcortical Neural Control of Swallowing: A Narrative Review. Dysphagia 2024; 39:177-197. [PMID: 37603047 DOI: 10.1007/s00455-023-10613-x] [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: 09/24/2022] [Accepted: 08/03/2023] [Indexed: 08/22/2023]
Abstract
Swallowing is a sophisticated process involving the precise and timely coordination of the central and peripheral nervous systems, along with the musculatures of the oral cavity, pharynx, and airway. The role of the infratentorial neural structure, including the swallowing central pattern generator and cranial nerve nuclei, has been described in greater detail compared with both the cortical and subcortical neural structures. Nonetheless, accumulated data from analysis of swallowing performance in patients with different neurological diseases and conditions, along with results from neurophysiological studies of normal swallowing have gradually enhanced understanding of the role of cortical and subcortical neural structures in swallowing, potentially leading to the development of treatment modalities for patients suffering from dysphagia. This review article summarizes findings about the role of both cortical and subcortical neural structures in swallowing based on results from neurophysiological studies and studies of various neurological diseases. In sum, cortical regions are mainly in charge of initiation and coordination of swallowing after receiving afferent information, while subcortical structures including basal ganglia and thalamus are responsible for movement control and regulation during swallowing through the cortico-basal ganglia-thalamo-cortical loop. This article also presents how cortical and subcortical neural structures interact with each other to generate the swallowing response. In addition, we provided the updated evidence about the clinical applications and efficacy of neuromodulation techniques, including both non-invasive brain stimulation and deep brain stimulation on dysphagia.
Collapse
Affiliation(s)
- Kuo-Chang Wei
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No. 7, Zhongshan South Road, Zhongzheng District, Taipei, 100, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Jinshan Branch, New Taipei City, Taiwan
| | - Tyng-Guey Wang
- Department of Physical Medicine and Rehabilitation, College of Medicine, National Taiwan University, No. 7, Zhongshan South Road, Zhongzheng District, Taipei, 100, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No. 7, Zhongshan South Road, Zhongzheng District, Taipei, 100, Taiwan
| | - Ming-Yen Hsiao
- Department of Physical Medicine and Rehabilitation, College of Medicine, National Taiwan University, No. 7, Zhongshan South Road, Zhongzheng District, Taipei, 100, Taiwan.
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No. 7, Zhongshan South Road, Zhongzheng District, Taipei, 100, Taiwan.
| |
Collapse
|
2
|
Wang P, Chen X, Chen M, Gao L, Xiong B, Ji C, Shen Q, Shen Y, Wu S, Pan Y, Li J, Wang B, Luo W. Dysphagia Pattern in Early to Moderate Parkinson's Disease Caused by Abnormal Pharyngeal Kinematic Function. Dysphagia 2024:10.1007/s00455-024-10672-8. [PMID: 38319366 DOI: 10.1007/s00455-024-10672-8] [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: 09/21/2023] [Accepted: 01/15/2024] [Indexed: 02/07/2024]
Abstract
Airway invasion is common in patients with Parkinson's disease (PD) and can cause serious complications. However, a PD-related dysphagic pattern has not been clearly elucidated. In this study, 53 patients with early to moderate PD were enrolled to undergo a videofluoroscopic study of swallowing evaluation (VFSS) and a battery of neuropsychological assessments. A set of VFSS variables (three visuoperceptual, nine temporal, and six spatial) were measured. The main effects of bolus viscosity and volume on airway invasion were calculated. Statistical analyses were performed to determine key kinematic factors of airway invasion for swallowing each bolus type. Airway invasion frequency was significantly higher for liquid boluses (liquid vs. pudding P < 0.001; liquid vs. honey P = 0.006). Laryngeal vestibule closure reaction time (LVCrt) was the key kinematic factor of airway invasion for 3 ml liquid swallow (P = 0.040), anterior displacement of hyoid bone was the key kinematic factor for both 5 ml and 10 ml liquid swallows (P = 0.010, 0.034, respectively). Male sex and advanced Hoehn and Yahr stage were significantly related to reduced anterior displacement of hyoid bone. These results reveal the dysphagic pattern related to PD, demonstrating that prolonged LVCrt and reduced anterior displacement of hyoid bone are two crucial kinematic factors contributing to airway invasion during the liquid swallow. In addition, hyoid bone dysfunction was correlated with disease severity and male sex. Our findings warrant further investigation of the pathophysiological mechanism of dysphagia in PD and would guide clinical intervention.
Collapse
Affiliation(s)
- Ping Wang
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
- Department of Rehabilitation, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinhui Chen
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Miao Chen
- Department of Neurology, Zhuji Affiliated Hospital of Shaoxing University, Shaoxing, China
| | - Leilei Gao
- Department of Rehabilitation, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bing Xiong
- Department of Rehabilitation, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Changmeng Ji
- Center for Rehabilitation Assessment and Therapy, Zhejiang Rehabilitation Medical Center, Hangzhou, China
| | - Qian Shen
- Department of Rehabilitation, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuanqing Shen
- Department of Rehabilitation, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng Wu
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Yanhong Pan
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Jinhui Li
- Department of Rehabilitation, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bo Wang
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
| | - Wei Luo
- Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
| |
Collapse
|
3
|
Chen SY, Wei KC, Cheng SH, Wang TG, Hsiao MY. The Hyoid Bone Kinematics in Dysphagic Stroke Patients: Instantaneous Velocity, Acceleration and Temporal Sequence Matters. Dysphagia 2023; 38:1598-1608. [PMID: 37231195 DOI: 10.1007/s00455-023-10587-w] [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: 02/04/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
Hyoid bone excursion (HBE) is one of the most critical events in the pharyngeal phase of swallowing. Most previous studies focused on the total displacement and average velocity of HBE. However, HBE during swallowing is not one-dimensional, and the change of velocity and acceleration is not linear. This study aims to elucidate the relationship between the instantaneous kinematics parameters of HBE and the severity of penetration/aspiration and pharyngeal residue in patients with stroke. A total of 132 sets of video-fluoroscopic swallowing study images collected from 72 dysphagic stroke patients were analyzed. The maximal instantaneous velocity, acceleration, displacement, and the time required to reach these values in the horizontal and vertical axes were measured. Patients were grouped according to the severity of the Penetration-Aspiration Scale and the Modified Barium Swallow Impairment Profile- Pharyngeal Residue. The outcome was then stratified according to the consistencies of swallowing materials. Stroke patients with aspiration were associated with a lower maximal horizontal instantaneous velocity and acceleration of HBE, a shorter horizontal displacement, and prolonged time to maximal vertical instantaneous velocity compared to the non-aspirators. In patients with pharyngeal residue, the maximal horizontal displacement of HBE was decreased. After stratification according to bolus consistencies, the temporal parameters of HBE were more significantly associated with aspiration severity when swallowing thin bolus. Meanwhile spatial parameters such as displacement had a bigger influence on aspiration severity when swallowing viscous bolus. These novel kinematic parameters of HBE could provide important reference for estimating swallowing function and outcomes in dysphagic stroke patients.
Collapse
Affiliation(s)
- Shao-Yu Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No.1 Changde St, Zhongzheng Dist, Taipei City, 100, Taiwan
| | - Kuo-Chang Wei
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No.1 Changde St, Zhongzheng Dist, Taipei City, 100, Taiwan
- Department of Physical Medicine and Rehabilitation, Cathay General Hospital, 280 Renai Rd. Sec.4, Taipei City, 106, Taiwan
| | - Sheng-Hao Cheng
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No.1 Changde St, Zhongzheng Dist, Taipei City, 100, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University BioMedical Park Hospital Chu-Tung Campus, No. 52, Zhishan Rd, Zhudong Township, Hsinchu County, 310, Taiwan
| | - Tyng-Guey Wang
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No.1 Changde St, Zhongzheng Dist, Taipei City, 100, Taiwan
- Department of Physical Medicine and Rehabilitation, College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd, Zhongzheng Dist, Taipei City, 100, Taiwan
| | - Ming-Yen Hsiao
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, No.1 Changde St, Zhongzheng Dist, Taipei City, 100, Taiwan.
- Department of Physical Medicine and Rehabilitation, College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd, Zhongzheng Dist, Taipei City, 100, Taiwan.
| |
Collapse
|
4
|
Noninvasive Evaluation of the Biomechanical Accommodations to Bolus Volume during Human Swallowing. Appl Bionics Biomech 2022; 2022:7146947. [DOI: 10.1155/2022/7146947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/10/2022] [Indexed: 11/17/2022] Open
Abstract
Bolus volume is very important in the biomechanics of swallowing. By noninvasively characterizing swallow responses to volume challenges, we can gain more knowledge on swallowing and evaluate swallowing behavior easily. This study aimed to evaluate the impact of bolus volume on the biomechanical characteristics of oropharyngeal swallowing events with a noninvasive sensing system. Fifteen healthy male subjects were recruited and instructed to swallow 5, 10, and 15 ml of water. The sensing system consisted of a tongue pressure sensor sheet, bend sensor, surface electrodes, and a microphone. They were used to monitor tongue pressure, hyoid activity, surface EMG of swallowing-related muscles, and swallowing sound, respectively. In addition to the onset, the peak time and offset of the above four structures, certain characteristics, such as the duration, peak value, and interval of the structure motions, were measured during the different drinking tasks. The coordination between the hyoid movement and tongue pressure was also assessed. Although no sequence of the structural events changed with volume, most of the timings of the structural events were significantly delayed, except for certain hyoid activities. The swallowing volume did not affect the active durations of the monitored structures, the peak values, or intervals of tongue pressure and supra- and infrahyoid muscle activity, but certain hyoid kinetic phases were prolonged when a larger volume was swallowed. Additionally, sequential coordination between hyoid movement and tongue pressure was confirmed among the three volumes. These findings suggest that oropharyngeal structural movements change in response to bolus volume to facilitate safe swallowing. The noninvasive and quantitative measurements taken with the sensing system provide essential information for understanding normal oropharyngeal swallowing.
Collapse
|
5
|
The kinematic features of hyoid bone movement during swallowing in different disease populations: A narrative review. J Formos Med Assoc 2022; 121:1892-1899. [DOI: 10.1016/j.jfma.2022.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 04/06/2022] [Accepted: 04/10/2022] [Indexed: 11/21/2022] Open
|
6
|
A multinational consensus on dysphagia in Parkinson's disease: screening, diagnosis and prognostic value. J Neurol 2021; 269:1335-1352. [PMID: 34417870 PMCID: PMC8857094 DOI: 10.1007/s00415-021-10739-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/01/2021] [Accepted: 08/02/2021] [Indexed: 11/25/2022]
Abstract
Background Parkinson’s disease (PD) is a neurodegenerative disorder characterized by a combination of motor and non-motor dysfunction. Dysphagia is a common symptom in PD, though it is still too frequently underdiagnosed. Consensus is lacking on screening, diagnosis, and prognosis of dysphagia in PD.
Objective To systematically review the literature and to define consensus statements on the screening and the diagnosis of dysphagia in PD, as well as on the impact of dysphagia on the prognosis and quality of life (QoL) of PD patients.
Methods A multinational group of experts in the field of neurogenic dysphagia and/or PD conducted a systematic revision of the literature published since January 1990 to February 2021 and reported the results according to PRISMA guidelines. The output of the research was then analyzed and discussed in a consensus conference convened in Pavia, Italy, where the consensus statements were drafted. The final version of statements was subsequently achieved by e-mail consensus.
Results Eighty-five papers were used to inform the Panel’s statements even though most of them were of Class IV quality. The statements tackled four main areas: (1) screening of dysphagia: timing and tools; (2) diagnosis of dysphagia: clinical and instrumental detection, severity assessment; (3) dysphagia and QoL: impact and assessment; (4) prognostic value of dysphagia; impact on the outcome and role of associated conditions. Conclusions The statements elaborated by the Consensus Panel provide a framework to guide the neurologist in the timely detection and accurate diagnosis of dysphagia in PD. Supplementary Information The online version contains supplementary material available at 10.1007/s00415-021-10739-8.
Collapse
|
7
|
Lee WH, Lim MH, Seo HG, Oh BM, Kim S. Hyoid kinematic features for poor swallowing prognosis in patients with post-stroke dysphagia. Sci Rep 2021; 11:1471. [PMID: 33446787 PMCID: PMC7809117 DOI: 10.1038/s41598-020-80871-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 12/29/2020] [Indexed: 01/25/2023] Open
Abstract
Identification of prognostic factors for swallowing recovery in patients with post-stroke dysphagia is crucial for determining therapeutic strategies. We aimed at exploring hyoid kinematic features of poor swallowing prognosis in patients with post-stroke dysphagia. Of 122 patients who experienced dysphagia following ischemic stroke, 18 with poor prognosis, and 18 age- and sex-matched patients with good prognosis were selected and retrospectively reviewed. Positional data of the hyoid bone during swallowing were obtained from the initial videofluoroscopic swallowing study after stroke onset. Normalized hyoid profiles of displacement/velocity and direction angle were analyzed using functional regression analysis, and maximal or mean values were compared between the good and poor prognosis patient groups. Kinematic analysis showed that maximal horizontal displacement (P = 0.031) and velocity (P = 0.034) in forward hyoid motions were significantly reduced in patients with poor prognosis compared to those with good prognosis. Mean direction angle for the initial swallowing phase was significantly lower in patients with poor prognosis than in those with good prognosis (P = 0.0498). Our study revealed that reduced horizontal forward and altered initial backward motions of the hyoid bone during swallowing can be novel kinematic features indicating poor swallowing prognosis in patients with post-stroke dysphagia.
Collapse
Affiliation(s)
- Woo Hyung Lee
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Min Hyuk Lim
- Department of Biomedical Engineering, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Han Gil Seo
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Byung-Mo Oh
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
- National Traffic Injury Rehabilitation Hospital, Yangpyeong, Gyeonggi-do, 12564, Republic of Korea.
- Institute of Aging, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
- Neuroscience Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Sungwan Kim
- Department of Biomedical Engineering, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University College of Medicine, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
| |
Collapse
|