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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...
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...
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 VII: Nursing Management of Dysrhythmias01:25

Dysrhythmias VII: Nursing Management of Dysrhythmias

Nursing management of dysrhythmias involves the following:AssessmentSubjective Assessment:The initial step involves gathering patient-reported symptoms such as dizziness, palpitations, and chest discomfort. It is crucial to collect a detailed history, including previous heart conditions, current medication use, and lifestyle factors like caffeine and alcohol consumption.Objective Assessment:This involves observing clinical signs such as jugular venous distention, cool and pale skin, and...
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...

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Related Experiment Video

Updated: May 30, 2026

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
08:56

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation

Published on: September 24, 2021

[Heart rhythm dysfunction in non-cardiosurgical patients].

D N Kiriushin, A V Bondarenko, V V Nikoda

    Anesteziologiia I Reanimatologiia
    |August 20, 2011
    PubMed
    Summary

    The number of non-cardiac surgeries is increasing, particularly in older adults with cardiovascular disease. Postoperative arrhythmias are a significant concern, affecting up to 20% of patients.

    Area of Science:

    • Cardiology
    • Intensive Care Medicine
    • Geriatrics

    Context:

    • Non-cardiac surgical interventions are increasing annually by approximately 1.5%.
    • The growing elderly population presents a higher prevalence of cardiovascular diseases.
    • This demographic experiences a 3.5% rate of sudden cardiac death and myocardial infarction post-intervention.

    Purpose:

    • To highlight the critical issue of postoperative arrhythmias in intensive care.
    • To underscore that preoperative arrhythmias are independent risk factors for cardiac complications.
    • To discuss current prophylactic and therapeutic strategies, including beta-blockers, antiarrhythmics, and cardio stimulators.

    Summary:

    • Postoperative arrhythmias affect up to 20% of patients undergoing non-cardiac surgery.

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    Published on: July 5, 2021

  • Preoperative arrhythmias independently predict adverse cardiac outcomes.
  • Current treatments like beta-blockers may cause bradycardia, necessitating further research and alternative management.

    • Impact:

    • Addresses the rising challenge of managing cardiac complications in non-cardiac surgery patients.
    • Emphasizes the need for improved preoperative risk assessment and perioperative cardiac care.
    • Informs future research directions for preventing and treating postoperative arrhythmias in high-risk populations.