{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T18:31:07Z","timestamp":1787596267995,"version":"build-2736575974"},"reference-count":30,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T00:00:00Z","timestamp":1787529600000},"content-version":"vor","delay-in-days":54,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The dynamic respiratory abnormalities in dogs with pectus excavatum are incompletely characterized.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis\/Objectives<\/jats:title>\n                    <jats:p>To characterize fluoroscopic findings in dogs with pectus excavatum and evaluate their associations with clinical severity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Animals<\/jats:title>\n                    <jats:p>Fifty-three client-owned dogs with pectus excavatum.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Cross-sectional study. Dogs were classified into low-severity or high-severity groups based on respiratory signs and treatment. Fluoroscopic examinations were evaluated for pectus excavatum-intrinsic findings and concurrent respiratory abnormalities. Associations with clinical severity were assessed using univariable and multivariable analyses.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Multiple fluoroscopic findings of pectus excavatum were characterized. Paradoxical sternal movement was independently associated with clinical severity (odds ratio [OR] 3.71, 95% CI, 1.03-13.4; P\u00a0=\u00a0.045). Thoracic height reduction ratio was significantly higher in the high-severity group (0.140 [IQR, 0.100-0.228]) compared with the low-severity group (0.097 [IQR, 0.064-0.133]; P\u00a0=\u00a0.04). Mainstem bronchial collapse was present in all dogs (53\/53, 100%) and cervical lung lobe herniation in 50\/53 (94%; 95% CI, 84%-99%). Most other fluoroscopic variables showed no significant associations with clinical severity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions and clinical importance<\/jats:title>\n                    <jats:p>Paradoxical sternal movement, particularly with greater thoracic height reduction, may serve as a supportive indicator of clinical severity. The high prevalence of bronchial collapse and cervical lung lobe herniation suggests an association between pectus excavatum and these airway abnormalities in dogs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/jvimsj\/aalag171","type":"journal-article","created":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T18:05:38Z","timestamp":1787594738000},"source":"Crossref","is-referenced-by-count":0,"title":["Fluoroscopic characterization of pectus excavatum in dogs: a cross-sectional study"],"prefix":"10.1093","volume":"40","author":[{"given":"Minjoo","family":"Kwon","sequence":"first","affiliation":[{"name":"College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University , Seoul ,","place":["South Korea"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nayeong","family":"Park","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul 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