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[Recurrent infective endocarditis. A case report]

R Poyet1, S Kerebel, F Pons

  • 1Service de cardiologie et maladies vasculaires, hôpital d'instruction des armées Sainte-Anne, boulevard Sainte-Anne, Armées, France. raphael.poyet@caramail.com

Annales De Cardiologie Et D'Angeiologie
|October 22, 2008
PubMed

Insights

Recurrent infective endocarditis (IE) cases linked to an undetected caecal adenocarcinoma highlight the importance of advanced imaging. Positron emission tomography (PET) scans aid in diagnosing rare IE causes, especially when conventional methods fail.

Area of Science:

  • Cardiology
  • Gastroenterology
  • Nuclear Medicine

Background:

  • Recurrent infective endocarditis (IE) is uncommon and associated with significant morbidity.
  • Identifying the source of recurrent IE, or the 'entrance way,' is crucial for effective treatment and prevention.

Observation:

  • A 63-year-old patient experienced five episodes of streptococcus IE over 13 years.
  • The source of infection remained elusive until the final relapse, which occurred on a mitro-aortic bioprosthesis.

Findings:

  • A positron emission tomography (PET) scan guided a coloscopy, revealing a caecal adenocarcinoma.
  • This previously undetected tumor, small and difficult to visualize, was identified as the likely source of recurrent IE.

Implications:

  • Positron emission tomography (PET) scans can be valuable in the etiological investigation of recurrent IE, particularly when a gastrointestinal malignancy is suspected.
  • Early detection of occult gastrointestinal tumors is vital in managing complex IE cases.

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