{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T19:20:47Z","timestamp":1791228047072,"version":"4.1.0"},"reference-count":23,"publisher":"American Veterinary Medical Association (AVMA)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ajvr"],"published-print":{"date-parts":[[2007,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p><jats:bold>Objective<\/jats:bold>\u2014To determine ECG and echocardiographic measurements in healthy anesthetized Grevy's zebras (<jats:italic>Equus grevyi<\/jats:italic>).<\/jats:p>\n<jats:p><jats:bold>Animals<\/jats:bold>\u201420 healthy zebras.<\/jats:p>\n<jats:p><jats:bold>Procedures<\/jats:bold>\u2014Auscultation, base-apex ECG, and echocardiography were performed on anesthetized zebras.<\/jats:p>\n<jats:p><jats:bold>Results<\/jats:bold>\u2014Low-grade systolic murmurs were detected in the left basilar region in 4 of 20 zebras. Evaluation of ECGs from 19 zebras revealed sinus rhythm with a predominantly negative QRS complex and a mean \u00b1 SD heart rate of 67 \u00b1 10 beats\/min. Echocardiograms of sufficient image quality were obtained for 16 zebras. Interventricular septal thickness in diastole, left ventricular chamber in diastole and systole, left atrial diameter, and left ventricular mass were significantly and moderately correlated with estimated body weight (<jats:italic>r<\/jats:italic> values ranged from 0.650 to 0.884). Detectable swirling of blood in the right and sometimes the left ventricles was detected in 9 of 16 zebras, whereas physiologic regurgitation of blood was detected for the aortic valve in 3 zebras, pulmonary valve in 2 zebras, mitral valve in 2 zebras, and tricuspid valve in 1 zebra.<\/jats:p>\n<jats:p><jats:bold>Conclusions and Clinical Relevance<\/jats:bold>\u2014Results of this study provide reference information for use in the cardiac evaluation of anesthetized Grevy's zebras.<\/jats:p>","DOI":"10.2460\/ajvr.68.2.148","type":"journal-article","created":{"date-parts":[[2007,2,3]],"date-time":"2007-02-03T06:41:18Z","timestamp":1170484878000},"page":"148-152","source":"Crossref","is-referenced-by-count":5,"title":["Cardiac evaluation of anesthetized Grevy's zebras (Equus grevyi)"],"prefix":"10.2460","volume":"68","author":[{"given":"Darcy B.","family":"Adin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Herbert W.","family":"Maisenbacher","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nyurka","family":"Ojeda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine V.","family":"Fiorello","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amara H.","family":"Estrada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Prosek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Scott B.","family":"Citino","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1272","reference":[{"key":"ref1","series-title":"J Electrocardiol","doi-asserted-by":"publisher","first-page":"167","DOI":"10.1016\/S0022-0736(75)80025-2","article-title":"The normal electrocardiogram of the domestic pony","volume":"8","author":"Buss","year":"1975"},{"key":"ref2","series-title":"Equine cardiology","first-page":"70","article-title":"Diagnostic aids in equine cardiology","author":"Patteson","year":"1996"},{"key":"ref3","series-title":"Equine Vet Educ","doi-asserted-by":"publisher","first-page":"303","DOI":"10.1111\/j.2042-3292.1992.tb00972.x","article-title":"Two dimensional and M-mode echocardiography","volume":"4","author":"Long","year":"1992"},{"key":"ref4","series-title":"Equine Vet J","doi-asserted-by":"publisher","first-page":"226","DOI":"10.1111\/j.2042-3306.1992.tb02820.x","article-title":"Standardised imaging technique for guided M-mode and Doppler echocardiography in the horse","volume":"24","author":"Long","year":"1992"},{"key":"ref5","series-title":"Circulation","doi-asserted-by":"publisher","first-page":"613","DOI":"10.1161\/01.CIR.55.4.613","article-title":"Echocardiographic determination of left ventricular mass in man. 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