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Related Concept Videos

Myocarditis III: Medical Management01:14

Myocarditis III: Medical Management

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...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

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...
Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

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...
Diphtheria01:28

Diphtheria

Diphtheria is an acute, toxin-mediated infectious disease that primarily affects the upper respiratory tract. It is caused by Corynebacterium diphtheriae, a Gram-positive, pleomorphic rod that lacks spore-forming capability and exhibits a characteristic club-shaped morphology under microscopic examination. While C. diphtheriae can asymptomatically colonize mucosal surfaces, clinical disease manifests only when the bacterial strain is lysogenized by a specific β-corynephage. This phage...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

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...
Myocarditis IV: Nursing Management01:22

Myocarditis IV: Nursing Management

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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Related Experiment Videos

Reversible myocarditis after spider bite.

Hasan Kara1, Ahmet Ak, Aysegul Bayir

  • 1Department of Emergency Medicine, Faculty of Medicine, Selcuk University, Konya, Turkey. hasankara42@gmail.com

BMJ Case Reports
|April 11, 2013
PubMed
Summary

Black widow spider bites can cause myocarditis, a rare but serious heart condition. Prompt cardiac monitoring and treatment are crucial for recovery in endemic regions.

Area of Science:

  • Cardiology
  • Toxicology
  • Internal Medicine

Background:

  • Black widow spiders (Latrodectus tredecimguttatus) are venomous arachnids found in Turkey.
  • Latrodectus bites are known to potentially cause myocarditis, indicated by elevated cardiac enzymes.

Observation:

  • Two male patients, aged 20 and 33, presented with myocarditis following black widow spider bites.
  • Both patients exhibited leucocytosis and elevated levels of troponin I, creatine kinase (CK), and creatine kinase-MB (CK-MB) fraction.
  • Electrocardiogram (ECG) results were normal in both patients, while one showed minimal left ventricular wall motion abnormality on echocardiography.

Findings:

  • Patients received intensive care unit (ICU) treatment including IV fluids, analgesics, spasmolytics, tetanus prophylaxis, and cardiac monitoring.

Related Experiment Videos

  • Cardiac enzyme levels (troponin I, CK, CK-MB) improved during hospitalization.
  • Both patients were discharged on the third and fifth hospital days, respectively, without complications.

    • Implications:

    • Myocarditis following a Latrodectus bite, though rare, can lead to severe cardiac complications.
    • In areas endemic for Latrodectus spiders, cardiac evaluation and monitoring should be considered in the prudent management of spider bites.
    • This case highlights the importance of recognizing and managing potential cardiac involvement after black widow spider envenomation.