Haemophilus parainfluenzae infective endocarditis complicated by multiorgan septic emboli

BMJ Case Rep. 2024 Apr 16;17(4):e256308. doi: 10.1136/bcr-2023-256308.


Infective endocarditis (IE) caused by Haemophilus parainfluenzae is a rare but serious condition if not diagnosed and treated promptly. In this article, we describe a patient with H. parainfluenzae IE who initially presented with non-specific symptoms but subsequently developed multiple sequelae of IE. The diagnosis of IE was made based on clinical, echocardiographic, radiological and microbiological findings. He was treated successfully with a mitral valve replacement along with 4 weeks of intravenous antibiotic therapy. Our case highlights the importance of obtaining a thorough history and a complete physical examination to ensure an early diagnosis of IE.

Keywords: Infectious diseases; Medical management.

Publication types

  • Case Reports

MeSH terms

  • Echocardiography
  • Endocarditis* / microbiology
  • Endocarditis, Bacterial* / complications
  • Endocarditis, Bacterial* / diagnosis
  • Endocarditis, Bacterial* / drug therapy
  • Haemophilus Infections* / complications
  • Haemophilus Infections* / diagnosis
  • Haemophilus Infections* / drug therapy
  • Haemophilus parainfluenzae
  • Humans
  • Male