Alterations of cardiac functions after chordae tendineae rupture using echocardiogram in dogs.

Chordae tendineae rupture(CTR),mostly occurred posterior,was identified in 16.1%of dogs with mitral valve disease(MVD).We form a hypothesis that selective transect of posterior chordae tendineae(CT)would alter the cardiac functions in dogs.An objective of this study was to observe alterations of cardiac function to make a canine MR model from CTR.1 Materials and methods Nine healthy beagles weighed were used.Dogs had normal heart function from echocardiography.A left thoracotomy was performed through the 6thor 7thintercostal space.A specific hook was inserted into the left ventricle(LV)