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[Malignant diphtheric myocarditis].

J A Araújo1, A L Campelo, C M Maia

  • 1Serviço de Cardiologia do Hospital de Messejana, INAMPS, Fortaleza, CE.

Arquivos Brasileiros De Cardiologia
|February 1, 1990
PubMed
Summary
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Diphtheric myocarditis, a severe complication of diphtheria, frequently leads to cardiac failure and rhythm disturbances. Half of affected patients died, often requiring pacemakers.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Pediatrics

Context:

  • Diphtheria remains a significant public health concern, particularly in areas with lower vaccination rates.
  • Diphtheric myocarditis is a serious complication that can lead to significant morbidity and mortality.
  • Understanding the clinical course and therapeutic challenges of diphtheric myocarditis is crucial for effective patient management.

Purpose:

  • To analyze the clinical evolution and therapeutic strategies for patients diagnosed with malignant diphtheric myocarditis.
  • To identify key clinical indicators and complications associated with diphtheric myocarditis.
  • To evaluate the outcomes of various therapeutic interventions, including pacemaker implantation.

Summary:

  • This study prospectively evaluated 14 patients with diphtheria, identifying cardiac involvement (diphtheric myocarditis) at a mean of 11.5 days.

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  • Fifty percent of patients died, with cardiac failure and complete atrioventricular (A-V) block (57%) being common. Temporary pacemakers were needed in 10 cases, but mortality remained high.
  • Extracardiac complications included respiratory infections (6 cases) and Guillain-Barré syndrome (2 cases).

    • Impact:

    • Cardiac rhythm disturbances in diphtheric myocarditis are strongly associated with the need for temporary pacemakers and high mortality rates.
    • Definitive pacemaker implantation is a viable option for patients with persistent complete A-V block.
    • This research highlights the critical need for prompt diagnosis and aggressive management of diphtheric myocarditis to improve patient outcomes.