Investigations into the role of the thyrohyoid muscles in the pathogenesis of dorsal displacement of the soft palate in horses

Equine Veterinary Journal

Volumn 35, Issue 3, 2003, Pages 258-263

  Ducharme, N G ^a   Hackett, R P ^a   Woodie, J B ^a   Dykes, N ^a   Erb, H N ^a   Mitchell, L M ^a   Soderholm, L V ^a  

^a Cornell University ^*  (United States)

Author keywords

Dorsal displacement; Exercise; Horse; Respiratory obstruction; Soft palate

Indexed keywords

AIRWAY PRESSURE; ANIMAL EXPERIMENT; ARTICLE; BREATHING RATE; CONTROLLED STUDY; DISEASE COURSE; ENDOSCOPY; FEMALE; GAIT; HORSE; HYOID BONE; LARYNX MUSCLE; MALE; MEASUREMENT; MUSCLE FUNCTION; MUSCLE RESECTION; NONHUMAN; PALATE DISEASE; PATHOGENESIS; PHARYNX; PRESSURE; PROSTHESIS; SOFT PALATE; SOFT PALATE DISPLACEMENT; SUTURE; TRACHEA; TREADMILL EXERCISE; UPPER RESPIRATORY TRACT; ANIMAL; ANIMAL DISEASE; EPIGLOTTIS; EXERCISE TEST; HORSE DISEASE; PALATE; PATHOPHYSIOLOGY; RANDOMIZATION;

ANIMALIA; EQUIDAE; EQUUS CABALLUS;

ANIMALS; ENDOSCOPY; EPIGLOTTIS; EXERCISE TEST; FEMALE; GAIT; HORSE DISEASES; HORSES; LARYNGEAL MUSCLES; MALE; PALATAL MUSCLES; PALATE, SOFT; PHYSICAL CONDITIONING, ANIMAL; RANDOM ALLOCATION;

EID: 0141958557     PISSN: 04251644     EISSN: None     Source Type: Journal    
DOI: 10.2746/042516403776148200     Document Type: Article

References (33)

1. Ahern, T.J. (1993) Oral palatopharyngoplasty; a survey of one hundred post-operative raced horses. J. equine vet. Sci. 13, 670-672.
2. Altman, J.S., Halpert, R.D., Mickelson. S.A. and Senior. B.A. (1999) Effect of uvulopalatopharyngoplasty and genial and hyoid advancement on swallowing in patients with obstructive sleep apnea syndrome. Otolaryngol. Head Neck Surg. 120, 454-457.
3. Anderson, J.D., Tulleners, E.P., Johnston, J.K. and Reeves, M.J. (1995) Sternothyrohyoideus myectomy or staphylectomy for treatment of intermittent dorsal displacement of the soft palate in racehorses: 209 cases (1986-1991). J. Am. vet. med. Ass. 206, 1909-1912.
4. Carter, B., Robertson, J., Beard, W. and Moore, R.M. (1993) Sternothyroideus myectomy, tenectomy and staphylectomy for treatment of dorsal displacement of the soft palate in horses. Vet. Surg. 22, 374.
5. Coleman, J. (1999) Oral and maxillofacial surgery for the management of obstructive sleep apnoea syndrome. Otolaryngol. Clin. Am. 32, 235-241.
6. Cook, W.R. (1981) Some observations on form and function of the equine upper airway in health and disease: I. The pharynx. Proc. Am. Ass. equine Practnrs. 27, 355-391.
7. Ducharme, N.G. (2001) The function of the extrinsic musculature in stabilising the upper airways. In: Proceedings of WEAS 2001 CD. Lifelearn, Guelph, Canada.
8. Ducharme, N.G. and Hackett, R.P. (1995) Dorsal displacement of the soft palate. In: Current Therapy in Equine Practice, 4th edn., Ed: N.E. Robinson, W.B. Saunders Co., Philadelphia. pp 415-418.
9. Ducharme, N.G., Hackett, R.P., Gleed, R.D., Ainsworth, D.M., Erb, H.N., Mitchell, L.M. and Soderholm, L.V. (1999) Pulmonary capillary pressure in horses undergoing alteration of pleural pressure by imposition of various upper airway resistive loads. Equine vet. J., Suppl. 30, 27-33.
10. Eisele, D.W., Schwartz, A.R., Hari, A., Thut, D.C. and Smith, P.L. (1995) The effects of selective nerve stimulation on upper airway airflow mechanics. Arch. Otolaryngol Head Neck Surg. 121, 1361-1364.
11. Hackett, R.P., Ducharme, N.G., Ainsworth, D.M., Erickson, B.K., Erb, H.N., Soderholm, L.V. and Thorson, L.M. (1999) Effects of extrathoracic airway obstruction on intrathoracic pressure and pulmonary artery pressure in exercising horses. Am. J. vet. Res. 60, 485-494.
12. Haynes, P.F. (1983) Dorsal displacement of the soft palate and epiglottic entrapment: diagnosis, management and interrelationship. Comp. cont. Educ. pract. Vet. 5, S379-S389.
13. Heffron, C.J. and Baker, C.W. (1979) Observations on the mechanism of functional obstruction of the nasopharyngeal airway in the horse. Equine vet. J. 11, 142-147.
14. Holcombe, S.J. and Ducharme, N.G. (1999) Pharynx. In: Equine Surgery, Ed: J.A. Auer, W.B. Saunders Co., Philadelphia. pp 337-344.
15. Holcombe, S.J., Beard, W.L., Hinchcliff, K.W. and Robertson, J.T. (1994) Effect of sternothyrohyoid myectomy on upper airway mechanics in normal horses. J. appl. Physiol. 77, 2812-2816.
16. Holcombe, S.J., Derksen, F.J., Stick, J.A. and Robinson, N.E. (1997) Effects of bilateral hypoglossal and glossopharyngeal nerve blocks on epiglottic and soft palate position in exercising horses. Am. J. vet. Res. 58, 1022-1026.
17. Holcombe, S.J., Derksen, F.J., Stick, J.A. and Robinson, N.E. (1998) Effect of bilateral blockade of the pharyngeal branch of the vagus nerve on soft palate function in horses. Am. J. vet. Res. 59, 504-508.
18. Holcombe, S.J., Derksen, F.J., Berney, C., Becker, A.C. and Horner, N.T. (2001) Effect of topical anesthesia of the laryngeal mucosa on upper airway mechanics in exercising horses. Am. J. vet. Res. 62, 1706-1710.
19. Hong, K.H., Ye, M., Kim, Y.M., Kevorkian, K.F. and Berke, G.S. (1997) The role of strap muscles in phonation - in vivo canine laryngeal model. J. Voice 11, 23-32.
20. Llewellyn, H.R. (1997) Sternothyroideus myotomy for the treatment of dorsal displacement of the soft palate. Proc. Am. Ass. equine Practnrs. 43, 239-243.
21. MacFarland, D.H. and Lund, J.P. (1993) An investigation of the coupling between respiration, mastication and swallowing in awake rabbits. J. Neurophysiol. 69, 95-108.
22. Maassen, W. (1978) Laryngeal release for tracheal resection. Thoraxchir. Vask Chir. 26, 291-296.
23. Nielan, G.J., Render, R., Ducharme, N.G. and Hackett, R.P. (1992) Measurement of tracheal static pressure in the exercising horse. Vet. Surg. 21, 423-428.
24. Odeh, M., Schall, R., Gavriely, N. and Oliven, A. (1993) Effect of upper airway muscle contraction on supraglottic resistance and stability. Respir. Physiol. 56, 139-150.
25. Oliven, A., Odeh, M. and Schnall, R.P. (1996) Improved upper airway patency elicited by electrical stimulation of the hypoglossus nerves. Respiration 63, 213-216.
26. Meng, Y., Uchida, K., Sato, T., Yamamura, K. and Yamada, Y. (1999) Difference in burst pattern of digastric and mylohyoid activities feeding in the freely behaving rabbit. Dysphagia 14, 78-84.
27. Rehder, R.S., Ducharme, N.G., Hackett, R.P. and Nielan, G.J. (1995) Measurement of upper airway pressures in exercising horses with dorsal displacement of the soft palate. Am. J. vet. Res. 56, 269-274.
28. Strohl, K.P., Wolin, A.D., van Lunteren, E. and Fouke, J.M. (1987) Assessment of muscle action on upper airway stability in anesthetised dogs. J. lab. clin. Med. 110, 221-30.
29. Sisson, S. (1975) Equine myology. In: The Anatomy of the Domestic Animals, Eds: S. Sisson, J.D. Grossman and R. Getty, W.B. Saunders Co., Philadelphia. pp 376-453.
30. Tsukroff, S., Ducharme, N.G., Bertram, J.E. and Hackett, R.P. (1998) Relationship of basihyoid bone and thyroid cartilage in exercising horses. In: CD Proceedings of 1st Meeting of the World Equine Airway Symposium.
31. Tulleners, E. and Hamir, A. (1991) Evaluation of epiglottic augmentation by use of polytetrafluoroethylene paste in horses. Am. J. vet. Res. 52, 1908-1916.
32. Van de Graaff, W.B., Gottfried, S.B., Mitra, J., van Lunteren, E., Hermiack, C. and Strohl, N.S. (1984) Respiratory function of hyoid muscles and hyoid arch. J. appl. Physiol. 57, 197-204.
33. Zertuche, J.M.L., Turner, T.A. and Colahan, P.T. (1990) Strap muscle myectomy for treatment of idiopathic intermittent dorsal displacement of the soft palate in racing Thoroughbreds. Vet. Surg. 12, 182. (Abstr.)