{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,10,2]],"date-time":"2024-10-02T04:20:42Z","timestamp":1727842842117},"reference-count":30,"publisher":"American Veterinary Medical Association (AVMA)","issue":"2","license":[{"start":{"date-parts":[[2024,2,1]],"date-time":"2024-02-01T00:00:00Z","timestamp":1706745600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ajvr"],"published-print":{"date-parts":[[2024,2,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:sec id=\"sc_a1\">\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>To describe left recurrent laryngeal neurectomy (LRLn) performed under standing sedation and evaluate the effect of LRLn on upper respiratory tract function using a high-speed treadmill test (HST). We hypothesized that (1) unilateral LRLn could be performed in standing horses, resulting in ipsilateral arytenoid cartilage collapse (ACC); and (2) HST after LRLn would be associated with alterations in upper respiratory function consistent with dynamic ACC.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a2\">\n<jats:title>ANIMALS<\/jats:title>\n<jats:p>6 Thoroughbred horses.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a3\">\n<jats:title>METHODS<\/jats:title>\n<jats:p>The horses were trained and underwent a baseline HST up to 14 m\/s at 5% incline until fatigue. Evaluation included; airflow, pharyngeal and tracheal pressures, and dynamic upper respiratory tract endoscopy. Trans-laryngeal impedance (TLI) and left-to-right quotient angle ratio (LRQ) were calculated after testing. The following day, standing LRLn was performed in the mid-cervical region. A HST was repeated within 4 days after surgery.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a4\">\n<jats:title>RESULTS<\/jats:title>\n<jats:p>Standing LRLn was performed without complication resulting in Havemayer grade 4 ACC at rest (complete paralysis) and Rakestraw grade C or D ACC (collapse up to or beyond rima glottis midline) during exercise. Increasing treadmill speed from 11 to 14 m\/s increased TLI (<jats:italic>P<\/jats:italic> &lt; .001) and reduced LRQ (<jats:italic>P<\/jats:italic> &lt; .001)<jats:sub>. <\/jats:sub>Neurectomy resulted in an increase in TLI (<jats:italic>P<\/jats:italic> = .021) and a reduction in LRQ (<jats:italic>P<\/jats:italic> &lt; .001).<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a5\">\n<jats:title>CLINICAL RELEVANCE<\/jats:title>\n<jats:p>Standing LRLn induces laryngeal hemiplegia that can be evaluated using a HST closely after neurectomy. Standing LRLn may be useful for future prospective evaluations of surgical interventions for laryngeal hemiplegia.<\/jats:p>\n<\/jats:sec>","DOI":"10.2460\/ajvr.23.08.0185","type":"journal-article","created":{"date-parts":[[2023,12,12]],"date-time":"2023-12-12T14:38:26Z","timestamp":1702391906000},"source":"Crossref","is-referenced-by-count":0,"title":["Standing left recurrent laryngeal neurectomy for prospective evaluation of laryngeal hemiplegia evaluated by a high-speed treadmill test"],"prefix":"10.2460","volume":"85","author":[{"given":"Natasha E.","family":"Lean","sequence":"first","affiliation":[{"name":"School of Veterinary Science, The University of Queensland, Gatton, Queensland, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samantha H.","family":"Franklin","sequence":"additional","affiliation":[{"name":"Equine Health and Performance Centre, University of Adelaide, Roseworthy, South Australia, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin J.","family":"Ahern","sequence":"additional","affiliation":[{"name":"School of Veterinary Science, The University of Queensland, Gatton, Queensland, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"B1","series-title":"Equine Vet J","first-page":"155","article-title":"Fifty years of recurring struggles with recurrent laryngeal neuropathy","volume":"50","author":"Parente EJ","year":"2018","unstructured":"Parente EJ. 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