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Related Concept Videos

Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

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Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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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 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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Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

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Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
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Pericarditis II: Clinical Features and Diagnostic Tests01:19

Pericarditis II: Clinical Features and Diagnostic Tests

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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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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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Related Experiment Video

Updated: Jul 23, 2025

Quantitative Visualization of Leukocyte Infiltrate in a Murine Model of Fulminant Myocarditis by Light Sheet Microscopy
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Scrub Typhus Complicated With Fulminant Perimyocarditis.

Nien-Jung Lee1, Hsin-I Shih1, Chih-Hao Lin1

  • 1National Cheng Kung University Department of Emergency Medicine College of Medicine National Cheng Kung University Hospital Tainan Taiwan.

Journal of Acute Medicine
|July 19, 2023
PubMed
Summary

Scrub typhus can cause severe perimyocarditis, a rare but fatal heart inflammation, even in healthy adults. Early recognition by emergency physicians is crucial for timely intervention in patients with febrile illness.

Keywords:
cardiogenic shockperimyocarditisscrub typhus

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Area of Science:

  • Infectious Diseases
  • Cardiology
  • Emergency Medicine

Background:

  • Scrub typhus, a bacterial infection, can present with diverse systemic manifestations.
  • Cardiac involvement in scrub typhus, though rare, can be severe and life-threatening.

Observation:

  • A 62-year-old woman with no prior health issues developed acute febrile illness.
  • She rapidly progressed to respiratory distress, cardiogenic shock with ECG changes, and was diagnosed with perimyocarditis.
  • Despite intensive care, she developed hemopericardium and intracranial hemorrhage, leading to expiration.

Findings:

  • Serum immunofluorescence assay confirmed scrub typhus.
  • The case highlights fulminant perimyocarditis as a potential complication of scrub typhus in previously healthy individuals.
  • No coronary artery occlusion was identified, supporting a non-ischemic cardiac event.

Implications:

  • Emergency physicians should consider scrub typhus in patients presenting with acute febrile illness and cardiac complications.
  • Prompt diagnosis and management of scrub typhus-related myocarditis may improve patient outcomes.
  • This case underscores the importance of recognizing risk factors for severe scrub typhus complications.