PMID: 11899030Mar 20, 2002Paper

Morphology of ventricular arrhythmias in the boxer as measured by 12-lead electrocardiography with pace-mapping comparison

Journal of Veterinary Internal Medicine
Marc S KrausHollis N Erb

Abstract

The QRS amplitude and polarity were determined in 12-lead electrocardiograms recorded from 22 Boxers with ventricular arrhythmias. Eighty-one percent (18/22) of dogs displayed a positive QRS morphology in the caudoventral leads (II, III, and aVF) and 77% (17/22) of dogs displayed a positive QRS morphology in the left precordial leads (V2-V6). In leads I and V1, the polarity of the QRS complex was variable (positive or negative). To determine if these morphologic features were suggestive of ventricular complexes arising from the right or left ventricle, a comparison was made to the QRS complexes in a pace-mapping study performed in 7 healthy mixed-breed dogs. A total of 3 right and 4 left ventricular sites were paced. None of the left ventricular paced sites resulted in a QRS morphology similar to the most common spontaneous ventricular arrhythmia in the Boxers. In contrast, QRS morphology in each of the 3 right ventricular sites was similar to that observed in the Boxers (P < .033). Each of these produced positive deflections in the caudoventral and left precordial leads, but both positive and negative QRS complexes were observed in leads I and V1 only when the right ventricular septum was paced. This finding suggested that the...Continue Reading

Citations

Jan 25, 2012·Journal of Veterinary Internal Medicine·M PeregoR A Santilli
Feb 5, 2008·American Journal of Veterinary Research·Caren E SmithAllison Lamb
Dec 29, 2013·American Journal of Veterinary Research·Manuela PeregoRoberto A Santilli
Aug 16, 2011·Journal of the American Veterinary Medical Association·Marco Baron ToaldoRoberto A Santilli
Jun 5, 2012·Journal of the American Veterinary Medical Association·Marco Baron ToaldoMario Cipone
Mar 1, 2013·Journal of the American Veterinary Medical Association·Julia M C SargentVirginia Luis Fuentes
Jun 12, 2013·The Veterinary Clinics of North America. Small Animal Practice·Teresa C DeFrancesco
May 23, 2012·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·Roberto A SantilliMarco Baron Toaldo
Jun 4, 2011·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·Eva M OxfordN Sydney Moïse
Feb 11, 2011·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·Valentina PalermoMike W S Martin
Mar 2, 2010·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·Roberto A SantilliGianmario Spadacini
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Apr 20, 2012·The Journal of Small Animal Practice·P SavarinoM L Margiocco
Oct 12, 2011·The Journal of Small Animal Practice·R A SantilliM Perego
May 12, 2015·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Gianluca LeddaGiovanna Bertolini
Aug 22, 2015·Journal of the American Veterinary Medical Association·Giovanni RomitoMario Cipone

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