ventricular ectopic beats การใช้

• On the other hand , a positive inotropic response was induced by il - 2 in isolated rat atria , indirectly by activating myocardial 3 - adrenoceptors by release of catecholamines , and directly by increasing the production of second messenger camp . in the isolated rat heart , stimulation of cardiac k opioid receptors has been shown to induce ventricular ectopic beats and to reduce the force of ventricular contraction