{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,25]],"date-time":"2026-01-25T01:01:11Z","timestamp":1769302871801,"version":"3.49.0"},"reference-count":20,"publisher":"American Veterinary Medical Association (AVMA)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ajvr"],"published-print":{"date-parts":[[2002,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Objective<\/jats:bold>\u2014To calculate the monthly incidence of\ngastric dilatation-volvulus (GDV) in a population of military\nworking dogs during a 5-year period and determine\nwhether there was an association with synoptic\nclimatologic indices.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Sample Population<\/jats:bold>\u2014Medical records of all military\nworking dogs housed at Lackland Air Force Base,Tex,\nfrom Jan 1, 1993 to Dec 31, 1997.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Procedure<\/jats:bold>\u2014Confirmed cases of GDV were identified\nfrom evaluation of medical records and used to calculate\nincidence of GDV. Factor analysis of local climatologic\ndata was used to classify each day into 1 of 8\nmeteorologically homogeneous types of days for this\nlocation. Occurrence of GDV was compared with frequency\nof occurrence of synoptic climatologic days.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Results<\/jats:bold>\u201448 cases of GDV were identified from\nJanuary 1993 through December 1997. Mean monthly\nincidence was 2.5 cases\/1,000 dogs at risk (range,\n0 to 18.5 cases\/1,000 dogs; median, 2.5 cases\/1,000\ndogs). A seasonal increase in incidence of GDV was\ndetected, because half of the episodes were during\nNovember, December, and January. An association\nwith a specific synoptic climatologic day was not\ndetected.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Conclusion and Clinical Relevance<\/jats:bold>\u2014Seasonal fluctuations\nin incidence of GDV may be associated with\nexternal factors that precipitate physiologic changes\nresulting in GDV. Although a specific cause-effect relationship\nwas not documented, clinicians must be alert\nfor the potential of seasonal variation in incidence of\nGDV and accordingly heighten their index of suspicion\nfor the condition, particularly in populations of dogs\nthat are predisposed to development of GDV. 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