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Home / Equine Research Bank / Vet Radiol Ultrasound / Ultrasonographic findings post laryngoplasty in the horse.
Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association2019; 60(6); 707-716; doi: 10.1111/vru.12788

Ultrasonographic findings post laryngoplasty in the horse.

Abstract: Laryngoplasty is commonly used to treat laryngeal hemiplegia in Thoroughbred racehorses. Evaluation of the success of the laryngoplasty is traditionally determined using endoscopy. Laryngeal ultrasonography and normal ultrasonographic appearance have been reported in the standing horse, but post-laryngoplasty and ventriculectomy ultrasonographic evaluation has limited literature coverage. A prospective case series of 10 Thoroughbred racehorses with left laryngeal hemiplegia was examined ultrasonographically and endoscopically prior to 3-10 days, 30-50 days, and 6-12 months after laryngoplasty and ventriculectomy. Anatomical structures and Plica vocalis movements were described and measurements and gradings analyzed by repeated means analysis of variance (P < .05). Postsurgical ultrasonographic visualization of Ventriculus laryngis entrances was possible. The distance between Plica vocalis in exhalation was significantly larger than that during inhalation (P < .05). Pre- and postsurgical caudal Basihyoideum and rostral Cartilago thyroidea depth was significantly different in some instances (P < .05). No significant differences in the Muscularis cricoarytenoideus lateralis measurements were found. Complications in the extra-luminal structures were found in seven horses including soft tissue swelling, seroma, and hematoma. A luminal Plica vocalis abscess and Plica vocalis granuloma were also detected ultrasonographically. Ultrasonography can be used to evaluate the post-laryngoplasty horse for assessing the success of the procedure, monitoring healing, and detecting complications.
© 2019 American College of Veterinary Radiology.
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Publication Date: 2019-07-16 PubMed ID: 31313431DOI: 10.1111/vru.12788Google Scholar: Lookup
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  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The study investigates the use of ultrasonography after an operation known as laryngoplasty in racehorses. The focus was on how useful the technique can be to assess recovery and to pick up any post-surgical issues.

Background

  • Laryngoplasty is a surgery performed on racing Thoroughbreds with a condition known as laryngeal hemiplegia, which impairs their breathing.
  • Endoscopy has traditionally been the tool to determine the success of this type of surgery.
  • There is a gap in the literature on the use of ultrasonography to analyse the aftermath of laryngoplasty and a procedure known as ventriculectomy.

Methodology

  • The researchers undertook a case study involving 10 Thoroughbred racehorses. They each had a condition called left laryngeal hemiplegia.
  • Both ultrasonographic and endoscopic evaluations were conducted before surgery and 3-10 days, 30-50 days, and 6-12 months after surgery.
  • Various aspects of the laryngeal structures were studied and measured, and statistical tools were applied to analyse the findings .

Findings

  • The researchers were able to visually examine the entrances to the Ventriculus laryngis via ultrasonography post-surgery.
  • Significant differences were observed in the distance between Plica vocalis during exhalation and inhalation.
  • Before and after surgery, noticeable deviations were found in some aspects of the caudal Basihyoideum and rostral Cartilago thyroidea depth.
  • There were no substantial differences detected in the measurements of Muscularis cricoarytenoideus lateralis.
  • Importantly, seven horses demonstrated complications in the extra-luminal structures, including soft tissue swelling, seroma, and hematoma.
  • Ultrasonography even detected localized infections known as abscesses and granulomas in the Plica vocalis.

Conclusion

  • This study concluded that ultrasonography can be effectively utilized to evaluate recovery after laryngoplasty.
  • The procedure can monitor how well tissues are healing and detect complications that might arise after the surgery.

Cite This Article

APA
Miller S, Carstens A. (2019). Ultrasonographic findings post laryngoplasty in the horse. Vet Radiol Ultrasound, 60(6), 707-716. https://doi.org/10.1111/vru.12788

Publication

Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association
ISSN: 1740-8261
NlmUniqueID: 9209635
Country: England
Language: English
Volume: 60
Issue: 6
Pages: 707-716

Researcher Affiliations

Miller, Sean
  • Section Diagnostic Imaging, Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.
Carstens, Ann
  • Section Diagnostic Imaging, Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.

MeSH Terms

  • Animals
  • Female
  • Hematoma / diagnostic imaging
  • Hematoma / veterinary
  • Hemiplegia / diagnostic imaging
  • Hemiplegia / surgery
  • Horse Diseases / diagnostic imaging
  • Horse Diseases / surgery
  • Horses
  • Laryngoplasty / veterinary
  • Larynx / diagnostic imaging
  • Larynx / physiology
  • Male
  • Physical Functional Performance
  • Postoperative Complications / diagnostic imaging
  • Postoperative Complications / veterinary
  • Prospective Studies
  • Ultrasonography / veterinary
  • Vocal Cord Paralysis / diagnostic imaging
  • Vocal Cord Paralysis / surgery

Grant Funding

  • National Research Foundation

References

This article includes 44 references
  1. Tan R, Dowling B, Dart A. High-speed treadmill videoendoscopic examination of the upper respiratory tract in the horse: The result of 291 clinical cases.. Vet J 2005;170:243-248.
  2. Morris E, Seeherman H. Clinical evaluation of poor performance in the racehorse: The results of 275 evaluations.. Equine Vet J 1991;23:169-174.
  3. Kannegieter N, Dore M. Endoscopy of the upper respiratory tract during treadmill exercise: A clinical study of 100 horses.. Aust Vet J 1995;72:101-107.
  4. Martin BJ, Reef V, Parente E, Sage A. Causes of poor performance of horses during training, racing, or showing: 348 cases (1992-1996).. J Am Vet Med Assoc 2000;216:554-558.
  5. Dixon P, McGorum B, Railton D. Long-term survey of laryngoplasty and ventriculocordectomy in an older, mixed-breed population of 200 horses. part 1: Maintenance of surgical arytenoid abduction and complications of surgery.. Equine Vet J 2003;35:389-396.
  6. Hawkins J, Tulleners E, Ross M, Evans L, Raker C. Laryngoplasty with or without ventriculectomy for treatment of left laryngeal hemiplegia in 230 racehorses.. Vet Surg 1997;26:484-491.
  7. McCarrel T, Woodie J. Update on laryngeal disorders and treatment.. Vet Clin North Am: Equine Prac 2015;31:13-26.
  8. Garrett K. Advances in diagnostic imaging of the larynx and pharynx.. Equine Vet Educ 2012;24:17-18.
  9. Ahern B, Parente E. Surgical complications of the equine upper respiratory tract.. Vet Clin North Am: Equine Prac 2008;24:465-484.
  10. Davenport-Goodall C, Parente E. Disorders of the larynx.. Vet Clin North Am: Equine Prac 2003;19:169-187.
  11. Froydenlund T, Dixon P. A review of equine laryngoplasty complications.. Equine Vet Educ 2014;26:98-106.
  12. Strand E, Martin G, Haynes P, McClure J, Vice J. Career racing performance in thoroughbreds treated with prosthetic laryngoplasty for laryngeal neuropathy: 52 cases (1981-1989).. J Am Vet Med Assoc 2000;217:1689-1696.
  13. Kidd J, Slone D. Treatment of laryngeal hemiplegia in horses by prosthetic laryngoplasty, ventriculectomy and vocal cordectomy.. Vet Rec 2002;150:481-484.
  14. Barnett T, O'Leary J, Parkin T, Dixon P, Barakzai S. Long-term exercising video-endoscopic examination of the upper airway following laryngoplasty surgery: A prospective cross-sectional study of 41 horses.. Equine Vet J 2013;45:593-597.
  15. Compostella F, Tremaine W, Franklin S. Retrospective study investigating causes of abnormal respiratory noise in horses following prosthetic laryngoplasty.. Equine Vet J 2012;44:27-30.
  16. Kraus B, Parente E, Tulleners E. Laryngoplasty with ventriculectomy or ventriculocordectomy in 104 draft horses (1992-2000).. Vet Surg 2003;32:530-538.
  17. Hardcastle M, Pauwels F, Collett M. Clinicopathologic observations on laryngoplasty failure in a horse.. Vet Surg 2012;41:649-653.
  18. Davenport C, Tulleners E, Parente E. The effect of recurrent laryngeal neurectomy in conjunction with laryngoplasty and unilateral ventriculocordectomy in thoroughbred racehorses.. Vet Surg 2001;30:417-421.
  19. Barnett T, O'Leary J, Parkin T, Dixon P, Barakzai S. Long-term maintenance of arytenoid cartilage abduction and stability during exercise after laryngoplasty in 33 horses.. Vet Surg 2013;42:291-295.
  20. Cramp P, Barakzai S. Surgical management of recurrent laryngeal neuropathy.. Equine Vet Educ 2012;24:307-321.
  21. Taylor S, Barakzai S, Dixon P. Ventriculocordectomy as the sole treatment for recurrent laryngeal neuropathy: Long-term results from ninety-two horses.. Vet Surg 2006;35:653-657.
  22. Henderson C, Sullins K, Brown J. Transendoscopic, laser-assisted ventriculocordectomy for treatment of left laryngeal hemiplegia in horses: 22 cases (1999-2005).. J Am Vet Med Assoc 2007;231:1868-1872.
  23. Bienert-Zeit A, Roetting A, Reichert C, Ohnesorge B. Laryngeal fistula formation after laryngoplasty in two warmblood mares.. Equine Vet Educ 2014;26:88-92.
  24. Barakzai S, Dixon P, Hawkes C, Cox A, Barnett T. Upper esophageal incompetence in five horses after prosthetic laryngoplasty.. Vet Surg 2015;44:150-155.
  25. Garrett K, Woodie J, Embertson R, Pease A. Diagnosis of laryngeal dysplasia in five horses using magnetic resonance imaging and ultrasonography.. Equine Vet J 2009;41:766-771.
  26. Chalmers H, Cheetham J, Yeager A, Ducharme N. Ultrasonography of the equine larynx.. Vet Radiol Ultrasound 2006;47:476-481.
  27. Chalmers H, Yeager A, Cheetham J, Ducharme N. Diagnostic sensitivity of subjective and quantitative laryngeal ultrasonography for recurrent laryngeal neuropathy in horses.. Vet Radiol Ultrasound 2012;53:660-666.
  28. Chalmers H, Yeager A, Ducharme N. Ultrasonographic assessment of laryngohyoid position as a predictor of dorsal displacement of the soft palate in horses.. Vet Radiol Ultrasound 2009;50:91-96.
  29. Solano M, Penninck D. Ultrasonography of the canine, feline and equine tongue: Normal findings and case history reports.. Vet Radiol Ultrasound 1996;37:206-213.
  30. Chalmers-Chaudhry H. The Use of Ultrasonography for Assessment of the Equine Intrinsic Muscles [Doctoral Thesis].. Guelph, Canada: University of Guelph; 2014.
  31. Chalmers H, Caswell J, Perkins J. Ultrasonography detects early laryngeal muscle atrophy in an equine neurectomy model.. Muscle Nerve 2016;53:583-592.
  32. Vavasseur P, Lechartier A, Robert C, Mespoulhes C. Development of a quantitative method for ultrasonographic assessment of recurrent laryngeal neuropathy in horses.. Bull Acad Vet Fr 2017;170:118-125.
  33. Robinson N. Consensus statements on equine recurrent laryngeal neuropathy: Conclusions of the Havemeyer workshop.. Equine Vet Educ 2004;16:333-336.
  34. Collins N, Milne E, Hahn C, Dixon P. Correlation of the Havemeyer endoscopic laryngeal grading system with histopathological changes in the equine cricoarytenoideus lateralis muscle.. Irish Vet J 2009;62:334-338.
  35. Pillen S, Verrips A, van Alfen N, Arts I, Sie L, Zwarts M. Quantitative skeletal muscle ultrasound: Diagnostic value in childhood neuromuscular disease.. Neuromuscul Disord 2007;17:509-516.
  36. Pillen S, Arts I, Zwarts M. Muscle ultrasound in neuromuscular disorders.. Muscle Nerve 2008;37:679-693.
  37. Simon N, Ralph J, Lomen-Hoerth C. Quantitative ultrasound of denervated hand muscles.. Muscle Nerve 2015;52:221-230.
  38. Chalmers H, Viel L, Caswell J, Ducharme N. Ultrasonographic detection of early atrophy of the intrinsic laryngeal muscles of horses.. Am J Vet Res 2015;76:426-436.
  39. Dixon PM, Robinson N, Wade JF. Proceedings of a Workshop on Equine Recurrent Laryngeal Neuropathy.. Suffolk, UK: R and W Publishers; 2004.
  40. Wittkowski KM. Friedman-type statistics and consistent multiple comparisons for unbalanced designs with missing data.. J Am Stat Assoc 1988;83:1163-1117.
  41. Wilcoxon F. Individual comparisons by ranking methods.. Biometrics Bulletin 1945;1:80-83.
  42. STUDENT. The probable error of a mean.. Biometrika 1908;6:1-25.
  43. Loyer EM, Kaur H, David CL, DuBrow RA, Eftekhari F. Importance of dynamic assessment of the soft tissues in the sonographic diagnosis of echogenic superficial abscesses.. J Ultrasound Med 1995;14:669-671.
  44. Loyer EM, DuBrow RA, David CL, Coan JD, Eftekhari F. Imaging of superficial soft-tissue infections: Sonographic findings in cases of cellulitis and abscess.. Am J Roentgenol 1996;166:149-152.

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