{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,16]],"date-time":"2025-05-16T01:18:22Z","timestamp":1747358302846,"version":"3.38.0"},"reference-count":32,"publisher":"American Veterinary Medical Association (AVMA)","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ajvr"],"published-print":{"date-parts":[[2011,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p><jats:bold>Objective<\/jats:bold>\u2014To noninvasively evaluate physiologic postprandial adaptations of the heart in snakes.<\/jats:p>\n<jats:p><jats:bold>Animals<\/jats:bold>\u20146 juvenile Paraguay anacondas (<jats:italic>Eunectes notaeus<\/jats:italic>).<\/jats:p>\n<jats:p><jats:bold>Procedures<\/jats:bold>\u2014The heart of each anaconda was echocardiographically evaluated after food was withheld for 28 days as well as 3 and 10 days after feeding. Physical measurements included body length, weight, and circumference at the level of the heart. Echocardiographic measurements included heart rate and 2-D total and internal ventricular area. From these measurements, total ventricular volume as well as the myocardial area as a surrogate of myocardial mass was calculated.<\/jats:p>\n<jats:p><jats:bold>Results<\/jats:bold>\u2014No significant changes in body length, weight, and circumference were found. Significant increases in heart rate (from 45 to 58 beats\/min), total ventricular volume (from 4.63 to 5.54 mL), and myocardial area (from 0.7 to 0.81 cm<jats:sup>2<\/jats:sup>) were detected 10 days after feeding, compared with results obtained prior to feeding after food had been withheld for 28 days. No pericardial effusion was detected at any time point.<\/jats:p>\n<jats:p><jats:bold>Conclusions and Clinical Relevance<\/jats:bold>\u2014Echocardiographic evaluation of the heart of anacondas was performed, and feeding resulted in concentric cardiac hypertrophy. Physiologic fluctuation of cardiac dimensions should be considered when cardiac imaging is performed in snakes.<\/jats:p>","DOI":"10.2460\/ajvr.72.9.1253","type":"journal-article","created":{"date-parts":[[2011,9,1]],"date-time":"2011-09-01T17:52:13Z","timestamp":1314899533000},"page":"1253-1258","source":"Crossref","is-referenced-by-count":8,"title":["Ultrasonographic evaluation of postprandial heart variation in juvenile Paraguay anacondas (Eunectes notaeus)"],"prefix":"10.2460","volume":"72","author":[{"given":"Philipp","family":"Zerbe","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tony","family":"Glaus","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcus","family":"Clauss","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jean-Michel","family":"Hatt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hanspeter W.","family":"Steinmetz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"ref1","series-title":"Physiol Biochem Zool","doi-asserted-by":"publisher","first-page":"182","DOI":"10.1086\/427049","article-title":"The effect of meal composition on specific dynamic action in Burmese pythons (Python molurus)","volume":"78","author":"McCue","year":"2005"},{"key":"ref2","series-title":"J Comp Physiol B","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1007\/s00360-008-0283-7","article-title":"Specific dynamic action: a review of the postprandial metabolic response","volume":"179","author":"Secor","year":"2009"},{"key":"ref3","series-title":"Nature","doi-asserted-by":"publisher","first-page":"37","DOI":"10.1038\/434037a","article-title":"Physiology: postprandial cardiac hypertrophy in pythons","volume":"434","author":"Andersen","year":"2005"},{"key":"ref4","series-title":"Am J Physiol","first-page":"R902","article-title":"Effects of meal size on postprandial responses in juvenile Burmese pythons (Python molurus)","volume":"272","author":"Secor","year":"1997"},{"key":"ref5","series-title":"J Exp Biol","doi-asserted-by":"publisher","first-page":"340","DOI":"10.1242\/jeb.02626","article-title":"Adaptive regulation of digestive performance in the genus Python","volume":"210","author":"Ott","year":"2007"},{"key":"ref6","series-title":"J Exp Biol","doi-asserted-by":"publisher","first-page":"3767","DOI":"10.1242\/jeb.023754","article-title":"Digestive physiology of the Burmese python: broad regulation of integrated performance","volume":"211","author":"Secor","year":"2008"},{"key":"ref7","series-title":"J Exp Biol","doi-asserted-by":"publisher","first-page":"881","DOI":"10.1242\/jeb.01478","article-title":"Patterns of blood flow during the postprandial response in ball pythons, Python regius","volume":"208","author":"Starck","year":"2005"},{"key":"ref8","series-title":"Proc Biol Sci","doi-asserted-by":"publisher","first-page":"903","DOI":"10.1098\/rspb.2004.2681","article-title":"Pythons metabolize prey to fuel the response to feeding","volume":"271","author":"Starck","year":"2004"},{"key":"ref9","series-title":"Vet Rec","doi-asserted-by":"publisher","first-page":"786","DOI":"10.1136\/vr.154.25.786","article-title":"Clinical and pathological characterisation of primary pulmonary hypertension in a dog","volume":"154","author":"Glaus","year":"2004"},{"key":"ref10","series-title":"Vet Radiol Ultrasound","doi-asserted-by":"publisher","first-page":"233","DOI":"10.1111\/j.1740-8261.2004.04041.x","article-title":"Echocardiographic changes induced by moderate to marked hypobaric hypoxia in dogs","volume":"45","author":"Glaus","year":"2004"},{"key":"ref11","series-title":"J Vet Intern Med","doi-asserted-by":"publisher","first-page":"247","DOI":"10.1111\/j.1939-1676.1993.tb01015.x","article-title":"Recommendations for standards in transthoracic two-dimensional echocardiography in the dog and cat. 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