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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...
Pulse rhythm01:30

Pulse rhythm

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 muscle...
Dysrhythmias I: Introduction01:15

Dysrhythmias I: Introduction

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...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

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...
Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per minute.
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

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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Updated: May 28, 2026

Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks
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Rhythm disturbances.

Allan R Mottram1, James E Svenson

  • 1Division of Emergency Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, F2/204 CSC MC 3280, 600 Highland Avenue, Madison, WI 53792, USA. armottram@medicine.wisc.edu

Emergency Medicine Clinics of North America
|November 2, 2011
PubMed
Summary
This summary is machine-generated.

This review covers diagnosing and treating adult bradyarrhythmias and tachyarrhythmias. It emphasizes rapid assessment of patient stability and rhythm to guide timely and appropriate therapeutic interventions.

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Area of Science:

  • Cardiology
  • Emergency Medicine

Background:

  • Cardiac rhythm disturbances are common and present diverse clinical scenarios.
  • Patient presentation ranges from unstable, requiring immediate intervention, to stable, allowing for a deliberate approach.

Purpose of the Study:

  • To provide a concise approach to the differential diagnosis and treatment of primary bradyarrhythmias and tachyarrhythmias in adult patients.
  • To guide clinicians in the rapid assessment of patient stability and underlying rhythm for timely therapy.

Main Methods:

  • Review of current literature and clinical guidelines for managing bradyarrhythmias and tachyarrhythmias.
  • Focus on diagnostic strategies and therapeutic interventions for adult patients.
  • Exclusion of atrial fibrillation and atrial flutter from the scope.

Main Results:

  • A structured approach to assessing patient stability and identifying the underlying cardiac rhythm is crucial.
  • Timely and appropriate interventions are guided by accurate diagnosis.
  • Management strategies differ based on rhythm type and patient stability.

Conclusions:

  • Effective management of cardiac rhythm disturbances relies on rapid assessment and accurate diagnosis.
  • A systematic approach ensures appropriate and timely therapeutic interventions for bradyarrhythmias and tachyarrhythmias.
  • This review offers a practical framework for clinicians managing these conditions.