{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T16:25:19Z","timestamp":1762100719908,"version":"3.38.0"},"reference-count":12,"publisher":"American Veterinary Medical Association (AVMA)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2007,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p><jats:bold>Case Description<\/jats:bold>\u2014A 7-year-old sexually intact male Thoroughbred racehorse was evaluated because of exercise intolerance, respiratory tract noise, and coughing when eating.<\/jats:p>\n<jats:p><jats:bold>Clinical Findings<\/jats:bold>\u2014A persistent dorsal displacement of the soft palate was identified during endoscopic examination of the upper portions of the respiratory tract. Radiography of the pharyngeal and laryngeal regions revealed a hypoplastic epiglottis that was ventral to, and not in contact with, the soft palate. The horse was anesthetized, and an oral endoscopic examination revealed a subepiglottic frenulum that had resulted in the dorsal displacement of the soft palate.<\/jats:p>\n<jats:p><jats:bold>Treatment and Outcome<\/jats:bold>\u2014The frenulum was transected transendoscopically by use of a diode laser. Twenty-four hours following surgery, repeat endoscopic and radiographic examinations revealed that the epiglottis had returned to its correct anatomic position in relation to the soft palate. Four weeks after surgery, endoscopy of the upper portions of the airway revealed recurrence of the dorsal displacement of the soft palate.<\/jats:p>\n<jats:p><jats:bold>Clinical Relevance<\/jats:bold>\u2014A subepiglottic frenulum should be considered as a cause of persistent dorsal displacement of the soft palate in horses. An endoscopic examination of the oropharyngeal region should be performed in horses prior to undertaking any surgical interventions to treat persistent dorsal displacement of the soft palate.<\/jats:p>","DOI":"10.2460\/javma.231.5.751","type":"journal-article","created":{"date-parts":[[2007,9,1]],"date-time":"2007-09-01T15:04:43Z","timestamp":1188659083000},"page":"751-754","source":"Crossref","is-referenced-by-count":5,"title":["Persistent dorsal displacement of the soft palate attributable to a frenulum of the epiglottis in a racing Thoroughbred"],"prefix":"10.2460","volume":"231","author":[{"given":"Valerie J.","family":"Moorman","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John F.","family":"Marshall","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henry W.","family":"Jann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"ref1","article-title":"The Jockey Club Information Systems. Equineline.com Web site"},{"key":"ref2","series-title":"Equine internal medicine","first-page":"355","article-title":"Disorders of the cardiovascular system","author":"Bonagura","year":"2004"},{"key":"ref3","series-title":"Equine internal medicine","first-page":"289","article-title":"Disorders of the respiratory system","author":"Ainsworth","year":"2004"},{"key":"ref4","series-title":"Equine Vet J","first-page":"389","article-title":"Long-term survey of laryngoplasty and ventriculocordectomy in an older, mixedbreed population of 200 horses. Part 1: maintenance of surgical arytenoid abduction and complications of surgery","volume":"35","author":"Dixon","year":"2003"},{"key":"ref5","series-title":"Equine surgery","first-page":"544","article-title":"Pharynx","author":"Ducharme","year":"2006"},{"key":"ref6","series-title":"J Am Vet Med Assoc","first-page":"677","article-title":"Persistent dorsal displacement of the soft palate associated with epiglottic shortening in two horses","volume":"179","author":"Haynes","year":"1981"},{"key":"ref7","series-title":"Am J Vet Res","first-page":"504","article-title":"Bilateral nerve blockade of the pharyngeal branch of the vagus nerve produces persistent soft palate dysfunction in horses","volume":"59","author":"Holcombe","year":"1998"},{"key":"ref8","series-title":"Equine Vet J","first-page":"258","article-title":"Investigations into the role of the thyrohyoid muscles in the pathogenesis of dorsal displacement of the soft palate in horses","volume":"35","author":"Ducharme","year":"2003"},{"key":"ref9","series-title":"Equine surgery","first-page":"566","article-title":"Larynx","author":"Stick","year":"2006"},{"key":"ref10","series-title":"Vet Surg","first-page":"287","article-title":"Persistent frenulum of the epiglottis in four foals","volume":"28","author":"Yarbrough","year":"1999"},{"key":"ref11","series-title":"Equine Vet J","first-page":"397","article-title":"Long-term survey of laryngoplasty and ventriculocordectomy in an older, mixed-breed population of 200 horses. Part 2: owners' assessment of the value of surgery","volume":"35","author":"Dixon","year":"2003"},{"key":"ref12","series-title":"Equine Vet J","first-page":"418","article-title":"Surgical advancement of the larynx (laryngeal tie-forward) as a treatment for dorsal displacement of the soft palate in horses: a prospective study 2001\u20132004","volume":"37","author":"Woodie","year":"2005"}],"container-title":["Journal of the American Veterinary Medical Association"],"original-title":[],"link":[{"URL":"https:\/\/avmajournals.avma.org\/view\/journals\/javma\/231\/5\/javma.231.5.751.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/avmajournals.avma.org\/downloadpdf\/journals\/javma\/231\/5\/javma.231.5.751.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/avmajournals.avma.org\/downloadpdf\/journals\/javma\/231\/5\/javma.231.5.751.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T14:05:17Z","timestamp":1741356317000},"score":1,"resource":{"primary":{"URL":"https:\/\/avmajournals.avma.org\/view\/journals\/javma\/231\/5\/javma.231.5.751.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,9,1]]},"references-count":12,"journal-issue":{"issue":"5"},"URL":"https:\/\/doi.org\/10.2460\/javma.231.5.751","relation":{},"ISSN":["0003-1488"],"issn-type":[{"type":"print","value":"0003-1488"}],"subject":[],"published":{"date-parts":[[2007,9,1]]}}}