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Related Concept Videos

Disturbances in Heart Rhythm01:29

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 heart...
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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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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...
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Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

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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.
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Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

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Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
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ECG Interpretation of Arrhythmias I: Sinus Arrhythmias01:16

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

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Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
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Dysrhythmias I: Introduction01:15

Dysrhythmias I: Introduction

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Dysrhythmias refers to abnormalities in the heart's rhythm. They result from disruptions in the heart's electrical conduction system, which includes the sinoatrial(SA)node, atrioventricular(AV) node, the bundle of His, bundle branches, and Purkinje fibers.Definition and PathophysiologyDysrhythmias result from disorders of impulse formation, impulse conduction, or both. The heart contains specialized cells in the sinoatrial node, atrioventricular node, and the bundle of His and Purkinje fibers...
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Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
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[Arrhythmia as an Incidental Finding].

Nicolas Schaerli1,2, Michael Kühne1,2

  • 1Klinik für Kardiologie, Universitätsspital Basel.

Therapeutische Umschau. Revue Therapeutique
|October 15, 2020
PubMed
Summary
This summary is machine-generated.

Wearable devices increasingly detect incidental arrhythmias, prompting a need to distinguish benign causes from serious conditions like atrial fibrillation. Understanding these findings is crucial for patient well-being and appropriate medical intervention.

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Area of Science:

  • Cardiology
  • Digital Health
  • Preventive Medicine

Background:

  • The proliferation of wearable technology enables widespread personal pulse and electrocardiogram (ECG) monitoring.
  • This leads to an increase in incidentally detected arrhythmias, prompting patient concern and the need for clinical evaluation.
  • Distinguishing benign arrhythmias from those requiring intervention is essential for patient management.

Purpose of the Study:

  • To analyze the implications of incidental arrhythmia findings in the context of wearable technology.
  • To differentiate between common, benign causes of arrhythmias and those with significant health consequences.
  • To guide patient communication and management strategies for various types of arrhythmias.

Main Methods:

  • Review of clinical examinations (palpation) and technical assessments (ECG).
  • Analysis of data from wearable devices detecting pulse irregularities.
  • Comparison of diagnostic criteria for differentiating benign versus clinically significant arrhythmias.

Main Results:

  • Bradyarrhythmias, if asymptomatic, often lack therapeutic consequence, with pacemakers reserved for symptomatic cases.
  • Atrial fibrillation is a frequent incidental finding with significant morbidity and mortality risks if untreated.
  • Supraventricular and ventricular extrasystoles are common, age-related findings, sometimes indicating subclinical heart disease.

Conclusions:

  • Incidental arrhythmia detection via wearables necessitates careful clinical correlation.
  • Accurate patient education regarding the significance of detected arrhythmias is paramount.
  • Prioritizing evaluation for conditions like atrial fibrillation is critical due to associated risks.