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Reza Shaker - One of the best experts on this subject based on the ideXlab platform.

  • Augmentation of Deglutitive Thyrohyoid Muscle Shortening by the Shaker Exercise
    Dysphagia, 2009
    Co-Authors: Rachel Mepani, Stephen Antonik, Benson Massey, Mark Kern, Jerilyn Logemann, Barbara Pauloski, Alfred Rademaker, Caryn Easterling, Reza Shaker
    Abstract:

    Earlier studies of the effect of 6 weeks of the Shaker Exercise have shown significant increase in UES opening and anterior excursion of larynx and hyoid during swallowing in patients with upper esophageal sphincter (UES) dysfunction, resulting in elimination of aspiration and resumption of oral intake. This effect is attributed to strengthening of the suprahyoid Muscles, as evidenced by comparison of electromyographic changes in Muscle fatigue before and after completion of the exercise regime. The effect of this exercise on Thyrohyoid Muscle shortening is unknown. Therefore the aim of this study was to determine the effect of the exercise on Thyrohyoid Muscle shortening. We studied 11 dysphagic patients with UES dysfunction. Six were randomized to traditional swallowing therapy and five to the Shaker Exercise. Videofluoroscopy was used to measure deglutitive Thyrohyoid shortening before and after completion of assigned therapy regimen. Maximum Thyrohyoid Muscle shortening occurred at close temporal proximity to the time of maximal thyroid cartilage excursion. The percent change in Thyrohyoid distance from initiation of deglutition to maximal anterior/superior hyoid excursion showed no statistically significant difference between the two groups prior to either therapy ( p  = 0.54). In contrast, after completion of therapy, the percent change in Thyrohyoid distance in the Shaker Exercise group was significantly greater compared to the traditional therapy ( p  = 0.034). The Shaker Exercise augments the Thyrohyoid Muscle shortening in addition to strengthening the suprahyoid Muscles. The combination of increased Thyrohyoid shortening and suprahyoid strengthening contributes to the Shaker Exercise outcome of deglutitive UES opening augmentation.

Jean-paul Marie - One of the best experts on this subject based on the ideXlab platform.

  • Selective laryngeal reinnervation: can rerouting of the Thyrohyoid nerve simplify the procedure by avoiding the use of a nerve graft?
    Surgical and Radiologic Anatomy, 2019
    Co-Authors: Frédéric Crampon, Fabrice Duparc, Olivier Trost, Jean-paul Marie
    Abstract:

    Purpose The objective of this study was to record the descriptive and metric anatomical characteristics of the Thyrohyoid nerve with the aim of rerouting it in a selective laryngeal reinnervation procedure. Methods An anatomical study was performed on ten formalin-embalmed cadavers. The origin of the Thyrohyoid nerve and the superior root of the ansa cervicalis , the location of the Thyrohyoid nerve ending in the Thyrohyoid Muscle, and the recurrent laryngeal nerve were established. Then, a rerouting of the Thyrohyoid nerve was performed. We measured the length of Thyrohyoid nerve, the distance between the Thyrohyoid nerve ending and the recurrent laryngeal nerve at the horizontal level of the cricothyroid joint before and after the rerouting, and the distance between the origin of the Thyrohyoid nerve and the superior root of the ansa cervicalis . Results The Thyrohyoid nerve was identified on both sides in all the cases. The average length of the Thyrohyoid nerve was 27 mm. The end of the Thyrohyoid nerve was found in 100% of the cases at the upper outer quarter of the Thyrohyoid Muscle. After the rerouting, an average reduction of 30% of the distance between the end of the thyroid nerve and the recurrent laryngeal nerve at the horizontal level of the cricothyroid joint was measured. Conclusion The rerouting of the Thyrohyoid nerve provided a reduction in the length of the nerve graft in laryngeal reinnervation. Moreover, the constancy of the Thyrohyoid nerve and its characteristics make it a valuable anatomical base for laryngeal reinnervation and laryngeal innervated allotransplantation.

  • Selective laryngeal reinnervation: can rerouting of the Thyrohyoid nerve simplify the procedure by avoiding the use of a nerve graft?
    Surgical and Radiologic Anatomy, 2018
    Co-Authors: Frédéric Crampon, Fabrice Duparc, Olivier Trost, Jean-paul Marie
    Abstract:

    The objective of this study was to record the descriptive and metric anatomical characteristics of the Thyrohyoid nerve with the aim of rerouting it in a selective laryngeal reinnervation procedure. An anatomical study was performed on ten formalin-embalmed cadavers. The origin of the Thyrohyoid nerve and the superior root of the ansa cervicalis, the location of the Thyrohyoid nerve ending in the Thyrohyoid Muscle, and the recurrent laryngeal nerve were established. Then, a rerouting of the Thyrohyoid nerve was performed. We measured the length of Thyrohyoid nerve, the distance between the Thyrohyoid nerve ending and the recurrent laryngeal nerve at the horizontal level of the cricothyroid joint before and after the rerouting, and the distance between the origin of the Thyrohyoid nerve and the superior root of the ansa cervicalis. The Thyrohyoid nerve was identified on both sides in all the cases. The average length of the Thyrohyoid nerve was 27 mm. The end of the Thyrohyoid nerve was found in 100% of the cases at the upper outer quarter of the Thyrohyoid Muscle. After the rerouting, an average reduction of 30% of the distance between the end of the thyroid nerve and the recurrent laryngeal nerve at the horizontal level of the cricothyroid joint was measured. The rerouting of the Thyrohyoid nerve provided a reduction in the length of the nerve graft in laryngeal reinnervation. Moreover, the constancy of the Thyrohyoid nerve and its characteristics make it a valuable anatomical base for laryngeal reinnervation and laryngeal innervated allotransplantation.

Rachel Mepani - One of the best experts on this subject based on the ideXlab platform.

  • Augmentation of Deglutitive Thyrohyoid Muscle Shortening by the Shaker Exercise
    2015
    Co-Authors: Rachel Mepani, Stephen Antonik, Benson Massey, Mark Kern, Barbara Pauloski, Alfred Rademaker, Caryn Easterling
    Abstract:

    Earlier studies of the effect of 6 weeks of the Shaker Exercise have shown significant increase in UES opening and anterior excursion of larynx and hyoid during swallowing in patients with upper esophageal sphincter (UES) dysfunction, resulting in elimination of aspiration and resumption of oral intake. This effect is attributed to strengthening of the suprahyoid Muscles, as evidenced by comparison of electromyographic changes in Muscle fatigue before and after completion of the exercise regime. The effect of this exercise on Thyrohyoid Muscle shortening is unknown. Therefore the aim of this study was to determine the effect of the exercise on Thyrohyoid Muscle shortening. We studied 11 dysphagic patients with UES dysfunction. Six were randomized to traditiona

  • Augmentation of Deglutitive Thyrohyoid Muscle Shortening by the Shaker Exercise
    Dysphagia, 2009
    Co-Authors: Rachel Mepani, Stephen Antonik, Benson Massey, Mark Kern, Jerilyn Logemann, Barbara Pauloski, Alfred Rademaker, Caryn Easterling, Reza Shaker
    Abstract:

    Earlier studies of the effect of 6 weeks of the Shaker Exercise have shown significant increase in UES opening and anterior excursion of larynx and hyoid during swallowing in patients with upper esophageal sphincter (UES) dysfunction, resulting in elimination of aspiration and resumption of oral intake. This effect is attributed to strengthening of the suprahyoid Muscles, as evidenced by comparison of electromyographic changes in Muscle fatigue before and after completion of the exercise regime. The effect of this exercise on Thyrohyoid Muscle shortening is unknown. Therefore the aim of this study was to determine the effect of the exercise on Thyrohyoid Muscle shortening. We studied 11 dysphagic patients with UES dysfunction. Six were randomized to traditional swallowing therapy and five to the Shaker Exercise. Videofluoroscopy was used to measure deglutitive Thyrohyoid shortening before and after completion of assigned therapy regimen. Maximum Thyrohyoid Muscle shortening occurred at close temporal proximity to the time of maximal thyroid cartilage excursion. The percent change in Thyrohyoid distance from initiation of deglutition to maximal anterior/superior hyoid excursion showed no statistically significant difference between the two groups prior to either therapy ( p  = 0.54). In contrast, after completion of therapy, the percent change in Thyrohyoid distance in the Shaker Exercise group was significantly greater compared to the traditional therapy ( p  = 0.034). The Shaker Exercise augments the Thyrohyoid Muscle shortening in addition to strengthening the suprahyoid Muscles. The combination of increased Thyrohyoid shortening and suprahyoid strengthening contributes to the Shaker Exercise outcome of deglutitive UES opening augmentation.

Caryn Easterling - One of the best experts on this subject based on the ideXlab platform.

  • Augmentation of Deglutitive Thyrohyoid Muscle Shortening by the Shaker Exercise
    2015
    Co-Authors: Rachel Mepani, Stephen Antonik, Benson Massey, Mark Kern, Barbara Pauloski, Alfred Rademaker, Caryn Easterling
    Abstract:

    Earlier studies of the effect of 6 weeks of the Shaker Exercise have shown significant increase in UES opening and anterior excursion of larynx and hyoid during swallowing in patients with upper esophageal sphincter (UES) dysfunction, resulting in elimination of aspiration and resumption of oral intake. This effect is attributed to strengthening of the suprahyoid Muscles, as evidenced by comparison of electromyographic changes in Muscle fatigue before and after completion of the exercise regime. The effect of this exercise on Thyrohyoid Muscle shortening is unknown. Therefore the aim of this study was to determine the effect of the exercise on Thyrohyoid Muscle shortening. We studied 11 dysphagic patients with UES dysfunction. Six were randomized to traditiona

  • Augmentation of Deglutitive Thyrohyoid Muscle Shortening by the Shaker Exercise
    Dysphagia, 2009
    Co-Authors: Rachel Mepani, Stephen Antonik, Benson Massey, Mark Kern, Jerilyn Logemann, Barbara Pauloski, Alfred Rademaker, Caryn Easterling, Reza Shaker
    Abstract:

    Earlier studies of the effect of 6 weeks of the Shaker Exercise have shown significant increase in UES opening and anterior excursion of larynx and hyoid during swallowing in patients with upper esophageal sphincter (UES) dysfunction, resulting in elimination of aspiration and resumption of oral intake. This effect is attributed to strengthening of the suprahyoid Muscles, as evidenced by comparison of electromyographic changes in Muscle fatigue before and after completion of the exercise regime. The effect of this exercise on Thyrohyoid Muscle shortening is unknown. Therefore the aim of this study was to determine the effect of the exercise on Thyrohyoid Muscle shortening. We studied 11 dysphagic patients with UES dysfunction. Six were randomized to traditional swallowing therapy and five to the Shaker Exercise. Videofluoroscopy was used to measure deglutitive Thyrohyoid shortening before and after completion of assigned therapy regimen. Maximum Thyrohyoid Muscle shortening occurred at close temporal proximity to the time of maximal thyroid cartilage excursion. The percent change in Thyrohyoid distance from initiation of deglutition to maximal anterior/superior hyoid excursion showed no statistically significant difference between the two groups prior to either therapy ( p  = 0.54). In contrast, after completion of therapy, the percent change in Thyrohyoid distance in the Shaker Exercise group was significantly greater compared to the traditional therapy ( p  = 0.034). The Shaker Exercise augments the Thyrohyoid Muscle shortening in addition to strengthening the suprahyoid Muscles. The combination of increased Thyrohyoid shortening and suprahyoid strengthening contributes to the Shaker Exercise outcome of deglutitive UES opening augmentation.

Yoshiaki Yamada - One of the best experts on this subject based on the ideXlab platform.

  • Comparison of SLN-evoked swallows during rest and chewing in the freely behaving rabbit
    Brain research, 2002
    Co-Authors: Masamichi Takagi, Tadashi Noda, Yoshiaki Yamada
    Abstract:

    Interactions between the swallowing central neural pathway and the chewing central neural pathway were examined in freely behaving, unanesthetized rabbits. Pharyngeal swallows were elicited by electrical stimulation of the superior laryngeal nerve (SLN) and defined by Thyrohyoid Muscle (TH) activity in the electromyogram (EMG). Recordings were obtained from rabbits at rest and during chewing. The number of swallows elicited by the SLN stimulation was significantly increased (P

  • Difference in the burst patterns of digastric and mylohyoid activities during feeding in the freely behaving rabbit.
    Dysphagia, 1999
    Co-Authors: Yang Meng, Kenji Uchida, Toshihide Sato, Kensuke Yamamura, Yoshiaki Yamada
    Abstract:

    Burst patterns in the digastric, mylohyoid, and masseter Muscles and the resultant jaw movement orbits during chewing and swallowing were investigated in the freely behaving rabbit. Activities in the posterior mylohyoid fibers consisted of two continuous bursts. Peaks in the first burst of the posterior fibers occurred in the middle part of opening and preceded the digastric burst. Peaks in the second burst occurred in the final part of opening and coincided with those in the working side of the digastric burst. After removal of the bilateral digastric Muscles, the gape size during chewing was largely reduced in the final part of opening and in the early part of closing. The results suggest that (a) the digastric may have a role in opening the mandible widely beyond the rest position but may not have a major role in the control of the horizontal (mediolateral) jaw movement, (b) the posterior mylohyoid fibers may have a function as an elevator of the tongue in the early part of opening, and (c) the posterior mylohyoid fibers may have a function as a depressor of the jaw in the late part of opening. Electromyographic burst in the mylohyoid Muscle began with marked activity in the mid-closing phase. The results support a role for the mylohyoid Muscle as a leading Muscle of swallowing. Swallowing events in the rabbit are easily distinguished from the activities of the mylohyoid Muscle and the Thyrohyoid Muscle.