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Related Concept Videos

Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
Cardiopulmonary Resuscitation IV: Pharmacological Management01:25

Cardiopulmonary Resuscitation IV: Pharmacological Management

Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
Cardiopulmonary Resuscitation III: AED Use01:23

Cardiopulmonary Resuscitation III: AED Use

Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...

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Related Experiment Video

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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
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Defibrillation and external pacing in flight: incidence and implications.

Stuart Daly1, Helen J Milne, Dan P Holmes

  • 1Emergency Medical Retrieval Service, Glasgow, UK.

Emergency Medicine Journal : EMJ
|December 25, 2012
PubMed
Summary
This summary is machine-generated.

Emergency electrical interventions like defibrillation are needed in 1.1% of aeromedical transfers for critically ill patients. These interventions require careful procedures due to unique transport challenges and potential safety issues.

Keywords:
arrythmiacardiac arrestcardiac care, arrythmiaintensive careprehospital care, critical care transport

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Area of Science:

  • Critical Care Medicine
  • Aeromedical Transport
  • Cardiology

Background:

  • Emergency electrical interventions (defibrillation, cardioversion, pacing) are life-saving treatments.
  • Portable medical technology enables electrical interventions during patient transport.
  • Increasing air transport of critically ill patients necessitates understanding electrical intervention during aeromedical transfers.

Purpose of the Study:

  • To determine the incidence of electrical intervention in critically ill patients during aeromedical transfer.
  • To review the associated risks of electrical intervention in this context.

Main Methods:

  • A retrospective review of all secondary retrievals by a national aeromedical critical care retrieval service.
  • Data collected over a 48-month period.

Main Results:

  • 1.1% (11 of 967) of secondary aeromedical retrievals required electrical intervention.
  • Patients were elderly (median age 77) with primary cardiac conditions and high arrhythmia risk.
  • Median transport time was 70 minutes.

Conclusions:

  • Electrical interventions during aeromedical transport present unique challenges and safety concerns.
  • A small but significant incidence of electrical intervention is required during aeromedical flights.
  • Robust procedures are essential for the safe delivery of electrical interventions in aeromedical services.