Assessment of the Left Ventricular Systolic Function During Ventricular Tachyeardia with Doppler Echocardiography in the Dog

The left ventricular systolic function of ventricular tachycardia(VT)in diffrent ventricular sites was studied with colour Pmppler echocardiography in 15 mongrel dogs.The ventricularrates of VT were made increasing 60 per minute adding of the basal sinus pates in each dog.The results showed the affected left;ventricular systolic function during VT in corresponding sites of left and right v entricles were the same;the distressing extent of left ventricular systolic function in diffrent sites of VT was also diffrent:the lest was the apmes of left and right ventricles,the middle laterals of them was secondary.the most was the outflows of them. Key words: pulsed vave Doppler over drive supression ventricutar tachycardia left ventricular systolic function