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Complete atrioventricular block: a rare presentation of mitral valve endocarditis

Danai Kitkungvan1, Joshan Suri, David Spodick

  • 1Department of Medicine, St. Vincent Hospital, 123 Summer Street, Worcester, MA 01608, USA. kitkungvan@hotmail.com

The Journal of Invasive Cardiology
|January 6, 2010
PubMed

Insights

Infective endocarditis can rarely cause complete atrioventricular (AV) block, particularly with mitral valve infections. This case highlights the high risk and need for prompt treatment in such rare instances.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Cardiac Electrophysiology

Background:

  • Infective endocarditis is a complex infection affecting heart valves.
  • Complete atrioventricular (AV) block is an uncommon but serious complication.
  • Aortic valve endocarditis more frequently causes conduction abnormalities than mitral valve endocarditis.

Observation:

  • This report details a rare case of mitral valve endocarditis presenting with fever and new-onset complete AV block.
  • Complete AV block is exceptionally rare in the context of mitral valve infections, with few cases documented.
  • The patient's presentation underscores the potential for severe cardiac complications from mitral valve endocarditis.

Findings:

  • Mitral valve endocarditis can manifest as complete atrioventricular (AV) block.
  • Patients experiencing this combination face significant risks.
  • Early diagnosis and intervention are crucial for managing this condition.

Implications:

  • This case emphasizes the importance of considering infective endocarditis in patients presenting with unexplained complete AV block, even with mitral valve involvement.
  • Prompt investigation, including echocardiography and blood cultures, is essential.
  • Aggressive management, including appropriate antibiotic therapy and consideration for early surgical valve replacement, is critical for improving patient outcomes and preventing mortality.

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