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Related Concept Videos

Antiarrhythmic Drugs: Class I Agents as Sodium Channel Blockers01:22

Antiarrhythmic Drugs: Class I Agents as Sodium Channel Blockers

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Class I antiarrhythmic drugs are used to treat various types of arrhythmias or irregular heart rhythms. These drugs block the sodium (Na+) channels in the cardiac cells, thereby affecting the movement of electrical impulses across the heart. Class I antiarrhythmic drugs are divided into three subgroups: Class IA, Class IB, and Class IC, each with distinct mechanisms of action and effects on the heart.
Class 1A Antiarrhythmic Drugs: These drugs work by moderately blocking sodium channels,...
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Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers01:12

Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers

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Class III antiarrhythmic drugs are a group of medications that can prolong action potentials in the heart. They achieve this by blocking potassium channels or enhancing inward currents from sodium channels. However, these drugs have a unique property of "reverse use-dependence," which is most pronounced at slower heart rates and can lead to torsades de pointes—a specific type of arrhythmia. However, it is essential to note that excessive QT interval prolongation—a measure of...
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Heart Failure Drugs: Inotropic Agents01:26

Heart Failure Drugs: Inotropic Agents

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Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
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Rational Dosage Regimen: Maintenance Dose and Loading Dose01:24

Rational Dosage Regimen: Maintenance Dose and Loading Dose

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A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
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Pulse rhythm01:30

Pulse rhythm

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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Updated: May 13, 2025

Standardized Model of Ventricular Fibrillation and Advanced Cardiac Life Support in Swine
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Establishing an intravenous sotalol loading program.

Keturah DelGrosso1, Kathryn Wood2

  • 1Geisinger, Enterprise Pharmacy, Danville, Pennsylvania.

Heart Rhythm O2
|April 15, 2025
PubMed
Summary

Establishing an intravenous (IV) sotalol loading program can help manage atrial fibrillation (AF) effectively. This guide details key considerations for implementing IV sotalol protocols to improve patient care and outcomes.

Keywords:
AdministrationAntiarrhythmic drugs/therapeutic useSotalol/administration and dosageatrial fibrillationintravenous

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Area of Science:

  • Cardiology
  • Clinical Pharmacy
  • Pharmacology

Background:

  • Atrial fibrillation (AF) is a common arrhythmia linked to stroke, heart failure, and mortality.
  • Current guidelines advocate early rhythm control for AF management.
  • Intravenous (IV) sotalol loading offers rapid achievement of therapeutic drug levels.

Purpose of the Study:

  • To outline the development of an IV sotalol loading program.
  • To address practical considerations for implementing IV sotalol protocols.
  • To guide pharmacy and therapeutics committees in reviewing IV sotalol use.

Main Methods:

  • Review of published data on IV sotalol indication and dosage.
  • Development of patient monitoring plans for corrected QT and electrolytes.
  • Creation of order sets, protocols, and infusion timelines.

Main Results:

  • The article provides a framework for establishing an IV sotalol loading program.
  • It highlights essential elements for formulary approval and protocol development.
  • Considerations for preadmission, admission, staffing, and infusion locations are discussed.

Conclusions:

  • Implementing an IV sotalol loading program requires careful planning and multidisciplinary review.
  • Standardized protocols ensure safe and effective administration of IV sotalol.
  • This approach facilitates early rhythm control in patients with atrial arrhythmias.