Persistence of Respiratory-Swallowing Coordination After Laryngectomy The present study was designed to provide additional insights into the neural mechanisms underlying respiratory-swallowing coupling by studying potential alterations in movement coordination when upper airway protection is no longer necessary. Twelve laryngectomized participants, all at least 3 years postsurgery, were compared to age- and sex-matched controls. Respiration and swallowing ... Research Article
Research Article  |   February 01, 2005
Persistence of Respiratory-Swallowing Coordination After Laryngectomy
 
Author Affiliations & Notes
  • Isabelle Charbonneau
    Université de Montréal, Quebec, Canada
  • James P. Lund
    Université de Montréal and McGill University, Montréal, Quebec, Canada
  • David H. McFarland
    Université de Montréal and McGill University, Montréal, Quebec, Canada
  • Contact author: David H. McFarland, Faculté de médecine, Université de Montréal, C.P. 6128, succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada.
    Contact author: David H. McFarland, Faculté de médecine, Université de Montréal, C.P. 6128, succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada.×
  • Corresponding author: E-mail: david.mcfarland@umontreal.ca
Article Information
Speech, Voice & Prosodic Disorders / Voice Disorders / Swallowing, Dysphagia & Feeding Disorders / Speech / Research Articles
Research Article   |   February 01, 2005
Persistence of Respiratory-Swallowing Coordination After Laryngectomy
Journal of Speech, Language, and Hearing Research, February 2005, Vol. 48, 34-44. doi:10.1044/1092-4388(2005/004)
History: Received February 25, 2003 , Revised February 10, 2004 , Accepted June 22, 2004
 
Journal of Speech, Language, and Hearing Research, February 2005, Vol. 48, 34-44. doi:10.1044/1092-4388(2005/004)
History: Received February 25, 2003; Revised February 10, 2004; Accepted June 22, 2004
Web of Science® Times Cited: 23

The present study was designed to provide additional insights into the neural mechanisms underlying respiratory-swallowing coupling by studying potential alterations in movement coordination when upper airway protection is no longer necessary. Twelve laryngectomized participants, all at least 3 years postsurgery, were compared to age- and sex-matched controls. Respiration and swallowing were monitored before, during, and after mastication. No significant differences were found between the laryngectomized and normal control participants in the distribution of the respiratory phase in which swallowing occurs, our primary measure of respiratory-swallowing stability. Data suggest that the coupling between the swallowing and respiratory pattern generators is highly stable. Pronounced masticatory-related apnea was observed in 3 of the laryngectomized participants but in none of the controls, suggesting that masticatory/respiratory interactions may become abnormal in these patients.

Acknowledgments
This work was supported in part by grants from the Natural Sciences and Engineering Research Council of Canada. We thank the reviewers and editors for their helpful comments, Isabelle Faucher, Alexandra Gladu, Doris Lafond, and Christian Valiquette for their assistance, and the members of the Federation Quebecoise des Laryngectomises for participating in the experiments.
Isabelle Charbonneau is currently affiliated with Institut Raymond-Dewar.
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