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Patient with native valve infective endocarditis and concomitant bacterial myopericarditis
  1. Alexander Peter Royston1,
  2. Oliver Edward Gosling2
  1. 1Medical School, University of Bristol, Bristol, UK
  2. 2Cardiology, Musgrove Park Hospital, Taunton, Somerset, UK
  1. Correspondence to Mr Alexander Peter Royston, ar16623{at}


A 39-year-old man with known mitral regurgitation (MR) presented with chest pain, nausea and dizziness. Troponin of 5801 ng/L and scooped ST segments indicated myopericarditis. Cardiac MRI demonstrated an epicardial late gadolinium enhancement pattern consistent with a significantly myocarditic syndrome. Initially afebrile, the patient reported fevers a week earlier when abroad where he received amoxicillin.

The patient then began spiking temperatures and infective endocarditis (IE) was confirmed following blood cultures positive for Streptococcus sanguinis and Transoesophageal echocardiography (TOE) showing a vegetation on the anterior mitral valve leaflet. Patient underwent 6 weeks of intravenous benzylpenicillin and on resolution he was discharged to await valve surgery.

A model is proposed where septic embolism from IE caused bacterial myopericarditis, triggering the initial presenting complaint. It is suggested that prior antibiotic therapy and paracetamol suppressed the systemic symptoms of IE.

  • valvar diseases
  • cardiovascular system
  • clinical diagnostic tests
  • radiology (diagnostics)

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  • Contributors APR: the instigator of this case report. He took the lead in writing the manuscript, collating the data and in obtaining patient consent. OEG: senior author of this report. He was responsible for the care and management of this patient. He provided the data for this report, particularly the diagnostic images. He retained overall editorial oversight of the submitted case report and is responsible for its content. All authors have read and approved the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.