Chronotropic effects (from chrono-, meaning time, and tropos, "a turn") are those that change the heart rate. Chronotropic drugs may change the heart rate...

(but not always) inotropic and chronotropic. For instance, parasympathetic stimulation is usually negatively chronotropic and dromotropic, but because the...

ventricular function may not be able to counteract the negative inotropic and chronotropic effects of diltiazem, the result being an even higher compromise of function...

and chronotropic effects on the heart. β2 adrenoceptor stimulation in arteriolar smooth muscle induces vasodilation. Its inotropic and chronotropic effects...

than expected in a particular disease state, often a febrile illness. "Chronotropic incompetence" (CI) refers to an inadequate rise in heart rate during...

cardiomyopathy, tachycardia-mediated cardiomyopathy, tachymyopathy, chronotropic cardiomyopathy, tachycardiomyopathy Pronunciation tak-i-kahr-dee-uh in-dyoos-duh...

in a negative chronotropic effect, or a lowering of heart rate. This can increase the potential for heart block. The negative chronotropic effects of CCBs...

substance which acts as a stimulant of the heart – e.g., via positive chronotropic or inotropic action. Examples of cardiac stimulant drugs are cocaine...

cocaine at a constant blood concentration, the acute tolerance to the chronotropic cardiac effects of cocaine begins after about 10 minutes, while acute...

or even the fully separated sinoatrial node (SAN). Thus, the positive chronotropic (from Χρόνος, Greek for 'time', and τρέπειν, Greek for 'to bend/turn')...

result from negative chronotropic and inotropic effects, which decrease cardiac workload and oxygen demand. Negative chronotropic properties of beta blockers...

contractility and efficiency (positive inotrope) increasing heart rate (positive chronotropic) increasing blood pressure increasing renal blood flow anti-inflammatory...

in particular, a drop in systolic blood pressure), dysrhythmia, and chronotropic response. Other alternatives to a standard exercise test include a thallium...

directly affect the function of the heart through their inotropic and chronotropic effects. In terms of inotropic activity, excessive cardiac glycoside...

exert a positive chronotropic and inotropic effects, thereby not precipitating angina pectoris. The latter property (positive chronotropic and inotropic...

first heart was stimulated, negative inotropic (beat amplitude) and chronotropic (beat rate) activity were seen in both hearts. This did not occur in...

Heart rate reduction, i.e., decrease of the resting heart rate (negative chronotropic effect) and reduction of excessive elevations resulting from exercise...

include: increase cardiac output by increasing heart rate (positive chronotropic effect), conduction velocity (positive dromotropic effect), stroke volume...

complications Cardiac arrhythmias Effects on cardiac output Negative chronotropic effect, or a decrease in heart rate. Negative inotropic effect, or a...

acetylcholine esterase inhibitory, antifertility, antinociceptive, chronotropic, pheromone, plant growth inhibitor, and allelopathic. An ethanol extract...

cardioinhibitory response, characterized by a drop in heart rate (negative chronotropic effect) and in contractility (negative inotropic effect) leading to a...

gives the ventricles more time to fill before contracting. This negative chronotropic effect is synergistic with the direct effect on cardiac pacemaker cells...

cardiac tissue. Activation of β1 receptors induces positive inotropic, chronotropic output of the cardiac muscle, leading to increased heart rate and blood...

fraction Cardiac index Left atrial volume Heart rate Cardiac pacemaker Chronotropic (Heart rate) Dromotropic (Conduction velocity) Inotropic (Contractility)...

decrease β-adrenergic effects on contractility. Adenosine also antagonizes chronotropic and ionotropic effects of circulating catecholamines. Overall, adenosine...

retrograde current and a reentry circuit that will result in a positive chronotropic cycle, leading to tachycardia.[citation needed] The ECG tracing in torsades...

modest, dose-dependent, positive inotropic activity, but minimal negative chronotropic activity. Vesnarinone improves ventricular performance most in patients...

may be utilized such as epinephrine or dopamine which have positive chronotropic effects and may increase the heart rate. Treatment in emergency situations...

(positive bathmotropic), and reduced frequency of heartbeat (negative chronotropic). The drug is almost completely absorbed from the gut. When in the bloodstream...

stimulation from vasodilators such as dipyridamole or adenosine, or positive chronotropic agents such as dobutamine can be used. Testing personnel can include...