Investigation of ventricular pre-excitation electrocardiographic pattern in two horses: clinical presentation and potential causes

J Viu, L Armengou, A Decloedt, E. Jose-Cunilleras

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Resum

© 2018 Elsevier B.V. Two horses referred to the Unitat Equina, Fundació Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, for unrelated clinical problems, and with no previous history of cardiac disease exhibited an intermittent ventricular pre-excitation electrocardiographic pattern during hospitalization. Both animals showed decreased plasma total and ionized magnesium concentrations, but no other relevant electrolyte disturbances were detected. Altered interventricular septal motion associated with ventricular pre-excitation beats (VPBs) was detected on M-mode echocardiography in both horses. The likely localization of an accessory pathway (AP) was identified in case 2 using pulsed-wave tissue Doppler imaging in the left anterior paraseptal location. Decreased frequency of the VPB was observed with long-term magnesium supplementation and restoration of plasma magnesium concentrations. The presence of ventricular pre-excitation electrocardiographic pattern was attributed to higher sensitivity of the AP to hypomagnesemia in both cases.
Idioma originalAnglès
Pàgines (de-a)213-221
RevistaJournal of Veterinary Cardiology
Volum20
Número3
DOIs
Estat de la publicacióPublicada - 1 de juny 2018

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