Quantitative Doppler echocardiography during Dobutamine stress test in canine mitral regurgitant model
Choi, H.J.(Petfriends Animal Hospital, Seoul, Republic of Korea) | Won, S.J.;Lee, K.C.;Choi, M.C.;Yoon, J.H.(Seoul National University, Seoul, Republic of Korea)E-mail:heeyoon@snu.ac.kr
This study was performed to evaluate echocardiographic parameters in dogs with experimental mitral regurgitation subjected to dobutamine stress testing. In 8 beagle dogs, a 4-prong grasping forceps was inserted into the left ventricle through the carotid artery with fluoroscopic guidance. The disruption of chordae or mitral valve leaflet was performed. Echocardiographic protocols included quantitative Doppler echocardiography and M-mode measurement for evaluating left ventricle function. After all measurement was obtained at rest, dobutamine was infused incrementally. In stress testing, all measurement also was performed at rest as the same method.
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