{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T18:23:30Z","timestamp":1782325410695,"version":"3.54.5"},"reference-count":29,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,7,8]],"date-time":"2025-07-08T00:00:00Z","timestamp":1751932800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2025,7,8]],"date-time":"2025-07-08T00:00:00Z","timestamp":1751932800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["beva.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Equine Veterinary Journal"],"published-print":{"date-parts":[[2026,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Clinical evaluation of alar fold (AF) collapse is presently based upon subjective evaluation of improvement in breathing and respiratory noise after suturing the AFs dorsally.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>\n                      To evaluate use of nasopharyngeal airway pressure (\n                      <jats:styled-content style=\"fixed-case\">NAP<\/jats:styled-content>\n                      ) as an objective method of assessing for the presence of\n                      <jats:styled-content style=\"fixed-case\">AF<\/jats:styled-content>\n                      collapse during exercise.\n                      <jats:styled-content style=\"fixed-case\">NAPs<\/jats:styled-content>\n                      should also potentially provide a precise means to grade the degree of airway obstruction present and response to surgical treatment.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design<\/jats:title>\n                    <jats:p>Prospective clinical study of actively racing Standardbred horses.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Standardbreds undergoing this test were outfitted with a heart rate monitor and warmed up on the treadmill for approximately 2000 m, prior to instrumentation with the analogue pressure sensor positioned in the nasopharynx. NAPs were measured continuously before and after the AFs were temporarily sutured dorsally, when horses were trotted at a heart rate \u2265200\u2009bpm for 2\u2009min under identical testing circumstances. Peak inspiratory and expiratory NAPs were determined for each horse. A two\u2010way repeated measures ANOVA was performed to analyse the effect of suturing the AFs dorsally on inspiratory and expiratory NAPs. When possible, horses were tested again after AF resection surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Twenty\u2010one consecutive cases with suspected AF collapse were tested. Suturing the AFs dorsally had a significant effect on expiratory NAPs (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), but not on inspiratory NAPs. Expiratory NAPs decreased from baseline (mean\u2009\u00b1\u2009SD) 35.8\u2009\u00b1\u20098.81 cmH\n                      <jats:sub>2<\/jats:sub>\n                      O to 20.1\u2009\u00b1\u20097.04 cmH\n                      <jats:sub>2<\/jats:sub>\n                      O after suturing AFs dorsally; to 13.3\u2009\u00b1\u20092.29 cmH\n                      <jats:sub>2<\/jats:sub>\n                      O after complete AF resection in 13 available horses.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main Limitations<\/jats:title>\n                    <jats:p>Not all horses were available for NAP testing post\u2010operatively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>NAP measurements provided a precise objective means to determine whether a horse was affected with AF collapse and assess improvement in airway function after surgery. AF collapse caused a moderate to marked expiratory airway obstruction in many affected racehorses.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/evj.14556","type":"journal-article","created":{"date-parts":[[2025,7,8]],"date-time":"2025-07-08T10:09:33Z","timestamp":1751969373000},"page":"758-766","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Objective diagnosis of alar fold collapse in active Standardbred trotting racehorses using nasopharyngeal airway pressure measurements"],"prefix":"10.1111","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-7632-107X","authenticated-orcid":false,"given":"Eric","family":"Strand","sequence":"first","affiliation":[{"name":"Faculty of Veterinary Medicine Norwegian University of Life Sciences (NMBU)  \u00c5s 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