Chronotropic drugs may change the heart rate and rhythm by affecting the electrical conduction system of the heart and the nerves that influence it, such as by changing the rhythm produced by the sinoatrial node. Positive chronotropes increase heart …

2018年3月19日 · Chronotropic drugs affect the heart rate. They increase or decrease the heart rate by altering the electrical impulses that regulate the heart’s rhythm. These drugs are used to treat conditions such as hypertension, angina, and arrhythmias.

Inotropic, Chronotropic and Dromotropic are different types of cardiac drugs. This classification is based on the way these drugs are used for the treatment of a particular condition. Inotropic drugs affect the force of cardiac contraction. Chronotropic drugs affect the heart rate.

2018年10月22日 · We develop a modernized comprehensive classification of both established and potential antiarrhythmic drugs that preserves the basic simplicity of the widely accepted classic Vaughan Williams framework.

Sympatholytics: drugs that oppose sympathetic nervous system actions, such as antagonists of α and β receptors. Chronotropes: drugs that alter heart rate. This drug class includes: Negative chronotropes --> Decrease heart rate. Positive chronotropes --> Increase heart rate. Inotropes: drugs or agents that affect the contraction of cardiac muscle

2024年10月4日 · Positive inotropes and negative inotropes are the two types of inotropic drugs. Positive inotropes boost the strength of the heartbeat, whereas negative inotropes weaken it. Because they have opposing effects, both subtypes are widely used in the treatment of many cardiovascular conditions.

Anticholinergic chronotropic agents are also known as muscarinic antagonists or parasympatholytic. All of them are competitive antagonists, and selectively block the effects of parasympathetic nerve activity. They block cardiac muscarinic receptors and cause tachycardia.

2024年1月10日 · Inotropic Drugs: They are used to treat conditions where the heart’s pumping ability is compromised, such as heart failure or cardiogenic shock. Chronotropic Drugs: Used to manage heart rate abnormalities, like tachycardia (fast heart rate) or bradycardia (slow heart rate).

2011年11月14日 · Stimulation of the Beta1-adrenergic receptors in the heart results in positive inotropic (increases contractility), chronotropic (increases heart rate), dromotropic (increases rate of conduction through AV node) and lusitropic (increases relaxation of myocardium during diastole) effects.

Chronotropic drugs have the potential to alter the heart rate and rhythm by impacting the heart’s electrical conduction system and the related nerves that influence it. Two types of chronotropic drugs, positive and negative, are used to increase and decrease heart rate respectively.