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Related Concept Videos

Disturbances in Heart Rhythm01:28

Disturbances in Heart Rhythm

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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...
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Pulse rhythm01:30

Pulse rhythm

790
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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Cardiac Output and Stroke Volume01:11

Cardiac Output and Stroke Volume

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Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
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Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

154
Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
154
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

918
Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
918
Acute Respiratory Failure-I01:21

Acute Respiratory Failure-I

204
Acute respiratory failure is a condition characterized by the inability of the lungs to perform their primary function: gas exchange. This failure leads to insufficient oxygen levels (hypoxemia) in the blood, elevated carbon dioxide levels (hypercapnia), or both, causing critical impairment in organ function.
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...
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Out-of-Hospital Cardiac Arrest.

Ryan B Gerecht1, Jose V Nable2

  • 1District of Columbia Fire and EMS Department, MedStar Washington Hospital Center, 110 Irving Street Northwest, Washington, DC 20010, USA.

Cardiology Clinics
|April 17, 2024
PubMed
Summary
This summary is machine-generated.

Survival from out-of-hospital cardiac arrest (OHCA) depends on prompt recognition, bystander CPR, and effective emergency medical services (EMS). This article details OHCA management by EMS providers.

Keywords:
Airway managementCPRCardiac arrestEMSOut-of-hospital cardiac arrest (OHCA)Prehospital

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Area of Science:

  • Emergency Medicine
  • Cardiology
  • Public Health

Background:

  • Out-of-hospital cardiac arrest (OHCA) survival requires a comprehensive community and system approach.
  • Key elements include rapid recognition, bystander cardiopulmonary resuscitation (CPR), and effective emergency medical services (EMS).
  • Patient management strategies are continuously evolving.

Purpose of the Study:

  • To focus on the management of out-of-hospital cardiac arrest (OHCA) specifically by EMS providers.
  • To highlight the critical role of EMS in the chain of survival for OHCA patients.

Main Methods:

  • Review of current protocols and practices for OHCA management by EMS.
  • Emphasis on the integration of basic and advanced life support (BLS and ALS) within EMS systems.
  • Discussion of evolving treatment modalities and their application in the field.

Main Results:

  • Effective EMS response is crucial for improving OHCA survival rates.
  • The integration of BLS and ALS by EMS providers significantly impacts patient outcomes.
  • Coordinated care post-resuscitation is essential for long-term survival.

Conclusions:

  • EMS providers play a pivotal role in the immediate management of OHCA.
  • Optimizing EMS protocols for OHCA is critical for enhancing patient survival.
  • Continuous evolution of EMS care is necessary to improve outcomes for cardiac arrest victims.