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Related Concept Videos

Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

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Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
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Myocarditis III: Medical Management01:14

Myocarditis III: Medical Management

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Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

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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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Myocarditis I: Introduction01:21

Myocarditis I: Introduction

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Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
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Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

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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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Pericarditis II: Clinical Features and Diagnostic Tests01:19

Pericarditis II: Clinical Features and Diagnostic Tests

517
Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
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Related Experiment Video

Updated: Mar 25, 2026

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
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Persistent Atrial Standstill in Acute Myocarditis.

Mukund A Prabhu1, B V Srinivas Prasad, Anees Thajudeen

  • 1Departments of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, and *Sri Jayadeva Institute of Cardiovascular Sciences and Research, Bengaluru; India. Correspondence to: Dr Mukund A Prabhu, Electrophysiology Unit, Department of Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and Research, 9th Block Jayanagar, Bannerghatta Road, Bengaluru 560 069, India. mukundaprabhu@gmail.com.

Indian Pediatrics
|February 22, 2016
PubMed
Summary

Acute myocarditis can rarely cause persistent atrial standstill, a condition where the atria show no electrical activity. This rare finding may persist even after the myocarditis resolves, requiring interventions like pacemakers.

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Area of Science:

  • Cardiology
  • Pediatric Electrophysiology
  • Myocardial Diseases

Background:

  • Atrial standstill is characterized by the absence of atrial electrical activity on electrocardiograms (ECGs).
  • Persistent atrial standstill as a complication of acute myocarditis is exceptionally rare in clinical practice.

Observation:

  • A case report details a 10-year-old girl who developed atrial standstill and heart failure secondary to acute myocarditis.
  • Following recovery from the acute myocarditis, her heart failure symptoms resolved, but the atrial standstill condition remained.

Findings:

  • The persistent atrial standstill in this pediatric patient was managed with the implantation of a permanent pacemaker.
  • Anticoagulation therapy was also initiated as part of the management strategy for the persistent atrial standstill.

Implications:

  • This case highlights that acute myocarditis can lead to atrial standstill that may persist long-term, even after the initial cardiac inflammation has resolved.
  • The findings suggest the need for continued monitoring and potential long-term management strategies for patients experiencing persistent atrial standstill post-myocarditis.