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Original Article


Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease

Fabio sarcinella, Joao Neves, Thomas W Maddox, Hannah M Hodgkiss Geere, Elizabeth F Bode, Joanna Dukes McEwan.


Cited By:10

Abstract
Background: Left atrial (LA) function is an important determinant of left ventricular (LV) filling, playing a key role in maintaining optimal cardiac performance. Pimobendan is a phosphodiesterase III inhibitor with positive inotropic and vasodilator effects.
Aim: The present study sought to investigate the effects of pimobendan on LA function in dogs with stage B2 myxomatous mitral valve disease (MMVD).
Materials and Methods: Twenty-seven dogs with stage B2 MMVD were retrospectively included. LA function was assessed prior to and 1–6 months following pimobendan initiation. For each dog, 2-dimensional (2D) echocardiography was performed to assess LA diameter and volume for each phase of the LA cycle and to assess complete, passive and active LA function. Pulsed wave tissue Doppler imaging (TDI) of the left ventricular longitudinal myocardial velocity associated with atrial contraction (A’), both at the level of the interventricular septum and the LV free wall, were also used as an indicator of LA function.
Results: There were no significant differences in any of the left atrial variables pre- and post-treatment.
Conclusion: Echocardiographic estimates of LA function by 2D diameters and volumes and TDI A’ in dogs with MMVD do not change after treatment with pimobendan.

Key words: Atrioventricular valve degeneration, canine, chronic valvular disease, phosphodiesterase inhibitor, Vetmedin.


 
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How to Cite this Article
Pubmed Style

sarcinella F, Neves J, Maddox TW, Geere HMH, Bode EF, McEwan JD. Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. Open Vet J. 2019; 9(4): 375-383. doi:10.4314/ovj.v9i4.16

Web Style

sarcinella F, Neves J, Maddox TW, Geere HMH, Bode EF, McEwan JD. Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. https://www.openveterinaryjournal.com/?mno=63355 [Access: December 07, 2024]. doi:10.4314/ovj.v9i4.16

AMA (American Medical Association) Style

sarcinella F, Neves J, Maddox TW, Geere HMH, Bode EF, McEwan JD. Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. Open Vet J. 2019; 9(4): 375-383. doi:10.4314/ovj.v9i4.16


Vancouver/ICMJE Style

sarcinella F, Neves J, Maddox TW, Geere HMH, Bode EF, McEwan JD. Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. Open Vet J. (2019), [cited December 07, 2024]; 9(4): 375-383. doi:10.4314/ovj.v9i4.16


Harvard Style

sarcinella, F., Neves, . J., Maddox, . T. W., Geere, . H. M. H., Bode, . E. F. & McEwan, . J. D. (2019) Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. Open Vet J, 9 (4), 375-383. doi:10.4314/ovj.v9i4.16


Turabian Style

sarcinella, Fabio, Joao Neves, Thomas W Maddox, Hannah M Hodgkiss Geere, Elizabeth F Bode, and Joanna Dukes McEwan. 2019. Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. Open Veterinary Journal, 9 (4), 375-383. doi:10.4314/ovj.v9i4.16


Chicago Style

sarcinella, Fabio, Joao Neves, Thomas W Maddox, Hannah M Hodgkiss Geere, Elizabeth F Bode, and Joanna Dukes McEwan. "Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease." Open Veterinary Journal 9 (2019), 375-383. doi:10.4314/ovj.v9i4.16


MLA (The Modern Language Association) Style

sarcinella, Fabio, Joao Neves, Thomas W Maddox, Hannah M Hodgkiss Geere, Elizabeth F Bode, and Joanna Dukes McEwan. "Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease." Open Veterinary Journal 9.4 (2019), 375-383. Print. doi:10.4314/ovj.v9i4.16


APA (American Psychological Association) Style

sarcinella, F., Neves, . J., Maddox, . T. W., Geere, . H. M. H., Bode, . E. F. & McEwan, . J. D. (2019) Effect of pimobendan on left atrial function in dogs with preclinical myxomatous mitral valve disease. Open Veterinary Journal, 9 (4), 375-383. doi:10.4314/ovj.v9i4.16


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