Cardiovascular Emergencies: Cardiac Arrhythmias
Emergency · Clinical Specialties
How it begins
Understanding the origin, spread, and disruption of cardiac arrhythmias in the emergency department requires rigorous analysis of myocardial cellular physiology. The myocardium is made up of two types of functionally different cell populations: rapid response cells (atrial and ventricular working myocardium, as well as the Purkinje system) and response cells...
What it covers
- The Rapid Response Action Potential
- The Slow Response Action Potential (Sinus Node and NAV)
- 1. Impulse Formation Disorders
- · A. Altered Automaticity
- · B. Triggered activity
- 2. Impulse Conduction Disorders (Reentry)
- The Four Classic Pillars of Hemodynamic Instability
- Use of Bedside Ultrasound (POCUS - Point-of-Care Ultrasound)
- Etiology and Pathophysiology
- Specific Electrocardiographic Manifestations
- Electrophysiological and Clinical Anatomy Classification
- · 1. First Degree AV Block
- · 2. Second Degree AV Block
- · 3. Third Degree AV Block (Complete)
- 1. Transcutaneous Cardiac Stimulation (External Pacemaker)
- · A. Technical Procedure and Adjustments
- · B. Mandatory Verification of Electromechanical Coupling
- 2. Transvenous Cardiac Stimulation (Temporary Pacemaker)
- Atrial Physiopathology and Remodeling
- The Clinical Approach in Emergencies: Frequency Control vs. Rhythm Control
- Stratification of Thromboembolic Risk and Bleeding
- Atrial Flutter
- 1. Intranodal Reentry Tachycardia (INRT)
- 2. Atrioventricular Reentry Tachycardia (AVRT)
- Pre-excited Atrial Fibrillation (Pre-excited AF or "FBI" Tachycardia)
- 1. Sustained Monomorphic Ventricular Tachycardia
- 2. Polymorphic Ventricular Tachycardia (Torsades de Pointes)
- · Specific Management of Torsades de Pointes
- 1. The Brugada Algorithm
- 2. The Vereckei Algorithm (Exclusive use of the aVR lead)
- 1. Brugada syndrome
- 2. Long QT Syndromes (LQTS)
- 1. Acute Coronary Syndrome (ACS)
- 2. Digital poisoning
- 3. Hydroelectrolyte disorders
- The Vaughan-Williams Classification (Modified)
- Detailed Analysis of Critical Drugs
- · 1. Amiodarone (Class III with effects I, II and IV)
- · 2. Adenosine
- 1. Synchronized Electrical Cardioversion
- 2. Defibrillation (Asynchronous Shock)
- 1. Integrated Algorithm for the Management of Bradycardia
- · Pharmacological Details of the Algorithm
- 2. Integrated Algorithm for the Management of Pulse Tachycardia
- · A. Wide QRS (≥ 120 ms) Regular and Stable
- · B. Narrow QRS ( 120 ms), Regular and Stable (suspected PSVT)
- Conclusions and Integrative Message for the Emergency Professional
The complete study guide is in the app
This page summarizes the outline. The full interactive study guide —with high-yield diagrams, clinical tables, and board review cases— can be read inside Epistemis, completely offline and ad-free.
- Subject
- Emergency
- Category
- Clinical Specialties
- Type
- Study Guide
- Sections
- 47
- Reviewed
- 2026-08-02