Evaluation of Swallow Function After Tongue Cancer Treatment Using Real-Time Magnetic Resonance Imaging

Zu, Yihe; Narayanan, Shrikanth; Kim, Yoon‐Chul; Nayak, Krishna S.; Bronson-Lowe, Christina; Villegas, Brenda Capobres; Ouyoung, Melody; Sinha, Uttam K.

doi:10.1001/jamaoto.2013.5444

Cited by 26 publications

(28 citation statements)

References 40 publications

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“…In the current study, a thickened barium solution resulted in an OTT of 2.6 ± 1.6 seconds. A lengthening of the OTT is known to occur in tongue tumor patients [32,33]. Pauloski et al reported that the OTT of thick solutions 1 month post-surgery is 2.33 seconds, which is similar to the present findings [34].…”

Section: Esophagus 7 26supporting

confidence: 89%

Dynamics of Swallowing Tablets during the Recovery Period following Surgery for Tongue Cancer

Yoshizumi¹,

Mikushi²

2016

Otolaryngol

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Objective: Medicinal tablets are sometimes difficult to swallow, even for healthy individuals. Accordingly, it is likely more difficult for patients to swallow tablets after oral surgery for tongue tumors. In this study, we aimed to investigate the dynamics of swallowing tablets in the recovery period following surgery for tongue tumors. Methods:Two experiments were conducted (Experiment 1 and Experiment 2). In Experiment 1, 20 tongue cancer patients swallowed simulated tablets and underwent videofluoroscopic (VF) examination of swallowing before and after surgery. The ability or inability to pass the tablet to the esophagus and the number of swallowing attempts required to ingest the tablet were evaluated. In Experiment 2, 48 similar subjects swallowed thickened barium and simulated tablets and underwent VF examination of swallowing after surgery. The ability or inability to pass the tablet to the esophagus, the number of swallows required to ingest the tablet, the tablet position after the initial and the final swallowing reflexes, and the oral transit time and pharyngeal transit time for swallowing the thickened barium solution and simulated tablets were evaluated.Results: After subtotal glossectomy, more subjects were unable to pass the tablet to the esophagus after surgery rather than before surgery. However, after surgery, patients needed more numbers of swallowing reflex attempts in order to successfully swallow tablets. Also, the tablets remained not only in the mouth, but also in the epiglottic vallecula and pyriform sinus. In the patients who could pass the tablet, the oral transit time of the thickened barium solution was shorter than in the patients who could not. Conclusion:In cases of subtotal glossectomy, tablet intake should be avoided, particularly in the recovery phase, and VF or endoscopic evaluation of swallowing should be performed when tablets are prescribed. After tongue cancer surgery, patients should be recommended to make multiple swallowing attempts when swallowing tablets.

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Section: Esophagus 7 26supporting

confidence: 89%

Dynamics of Swallowing Tablets during the Recovery Period following Surgery for Tongue Cancer

Yoshizumi¹,

Mikushi²

2016

Otolaryngol

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“…As a result, we are not able to comprehensively compare the changes in hyolingual and jaw movement preceding, during, and following swallows in humans to that in macaques. Further comparisons with human data, [64, 65, 70–74] are necessary to fully understand the relevance of studies of macaque feeding for studies of mastication and swallowing disturbances in human.…”

Section: Discussionmentioning

confidence: 99%

Sagittal Plane Kinematics of the Jaw and Hyolingual Apparatus During Swallowing in Macaca mulatta

et al. 2017

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Studies of mechanisms of feeding behavior are important in a society where aging- and disease-related feeding disorders are increasingly prevalent. It is important to evaluate the clinical relevance of animal models of the disease and the control. Our present study quantifies macaque hyolingual and jaw kinematics around swallowing cycles to determine the extent to which macaque swallowing resembles that of humans. One female and one male adult Macaca mulatta were trained to feed in a primate chair. Videofluoroscopy was used to record kinematics in a sagittal view during natural feeding on solid food, and the kinematics of the hyoid bone, thyroid cartilage, mandibular jaw, and anterior-, middle-, and posterior-tongue. Jaw gape cycles were defined by consecutive maximum gapes, and the kinematics of the swallow cycles were compared with those of the two consecutive non-swallow cycles preceding and succeeding the swallow cycles. Although there are size differences between macaques and humans, and macaques have shorter durations of jaw gape cycles and hyoid and thyroid upward movements, there are several important similarities between our macaque data and human data reported in the literature: (1) The durations of jaw gape cycles during swallow cycles are longer than those of non-swallow cycles as a result of an increased duration of the jaw-opening phase; (2) Hyoid and thyroid upward movement is linked with a posterior tongue movement and is faster during swallow than non-swallow cycles; (3) Tongue elevation propagates from anterior to posterior during swallow and non-swallow cycles. These findings suggest that macaques can be a useful experimental model for human swallowing studies.

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“…26–28 A few clinical studies of swallowing have been carried out using RT-MRI, for example comparisons to existing invasive modalities on dysphagia patients, 29 assessment of swallowing disorders in normal and brainstem lesion patients, 30 and evaluation of swallowing in postglossectomy patients have been demonstrated. 31 …”

mentioning

confidence: 99%

“…[26][27][28] A few clinical studies of swallowing have been carried out using RT-MRI, for example comparisons to existing invasive modalities on dysphagia patients, 29 assessment of swallowing disorders in normal and brainstem lesion patients, 30 and evaluation of swallowing in postglossectomy patients have been demonstrated. 31 RT-MRI has been utilized to analyze and compare speech in normal subjects and postglossectomy patients, where portions of the infected tongue are treated with surgical resection (with or without reconstruction), and radiation therapy. 32,33 Such analyses may provide patients and their speech therapists with useful information in managing speech posttreatment.…”

mentioning

confidence: 99%

Recommendations for real-time speech MRI

Lingala

Sutton

Miquel

et al. 2015

J. Magn. Reson. Imaging

127

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Real-time magnetic resonance imaging (RT-MRI) is being increasingly used for speech and vocal production research studies. Several imaging protocols have emerged based on advances in RT-MRI acquisition, reconstruction, and audio-processing methods. This review summarizes the state-of-the-art, discusses technical considerations, and provides specific guidance for new groups entering this field. We provide recommendations for performing RT-MRI of the upper airway. This is a consensus statement stemming from the ISMRM-endorsed Speech MRI summit held in Los Angeles, February 2014. A major unmet need identified at the summit was the need for consensus on protocols that can be easily adapted by researchers equipped with conventional MRI systems. To this end, we provide a discussion of tradeoffs in RT-MRI in terms of acquisition requirements, a priori assumptions, artifacts, computational load, and performance for different speech tasks. We provide four recommended protocols and identify appropriate acquisition and reconstruction tools. We list pointers to open-source software that facilitate implementation. We conclude by discussing current open challenges in the methodological aspects of RT-MRI of speech.

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Evaluation of Swallow Function After Tongue Cancer Treatment Using Real-Time Magnetic Resonance Imaging

Cited by 26 publications

References 40 publications

Dynamics of Swallowing Tablets during the Recovery Period following Surgery for Tongue Cancer

Dynamics of Swallowing Tablets during the Recovery Period following Surgery for Tongue Cancer

Sagittal Plane Kinematics of the Jaw and Hyolingual Apparatus During Swallowing in Macaca mulatta

Recommendations for real-time speech MRI

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