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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

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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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Myocarditis IV: Nursing Management01:22

Myocarditis IV: Nursing Management

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Myocarditis is an inflammatory condition of the myocardium requiring meticulous nursing management for optimal patient outcomes. Effective management begins with a thorough assessment of the patient's medical history, paying close attention to past infections, autoimmune disorders, travel history, and exposure to toxins or drugs. Recent viral infections and systemic diseases are particularly relevant due to their potential role in triggering myocarditis.Physical Examination and MonitoringThe...
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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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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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Multisystem inflammatory syndrome in children (MIS-C), United States, 2023-2024.

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Updated: Aug 12, 2025

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Multisystem Inflammatory Syndrome in American Indian/Alaska Native Children, March 2020-May 2022.

Ethan R Bornstein1,2,3, Allison D Miller1, Laura D Zambrano1

  • 1From the CDC COVID-19 Response Team.

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|February 2, 2023
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Summary

Multisystem inflammatory syndrome in children (MIS-C) disproportionately affected younger, obese American Indian and Alaska Native (AI/AN) youth, particularly those from vulnerable areas. AI/AN children experienced more severe respiratory issues and shock.

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Area of Science:

  • Pediatric infectious diseases
  • Epidemiology
  • Health disparities

Background:

  • Multisystem inflammatory syndrome in children (MIS-C) is a rare but serious condition following viral infections.
  • Understanding ethnic and geographic disparities in MIS-C is crucial for targeted public health interventions.

Purpose of the Study:

  • To compare the characteristics, clinical features, and outcomes of MIS-C in American Indian and Alaska Native (AI/AN) children versus non-Hispanic white children.
  • To identify risk factors and disparities associated with MIS-C in AI/AN populations.

Main Methods:

  • Retrospective cohort study comparing AI/AN and non-Hispanic white pediatric patients diagnosed with MIS-C.
  • Analysis of demographic data, clinical presentations, disease severity, and outcomes.

Main Results:

  • AI/AN MIS-C patients were younger and had higher rates of obesity compared to non-Hispanic white patients.
  • AI/AN patients originated from areas with greater social vulnerability.
  • A higher proportion of AI/AN patients presented with severe respiratory involvement and shock.

Conclusions:

  • Significant disparities exist in MIS-C presentation and severity among AI/AN children.
  • Younger age, obesity, social vulnerability, and severe clinical manifestations highlight specific risks for AI/AN youth with MIS-C.