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Updated: Sep 16, 2025

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
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Pulmonary valve endocarditis in the setting of a patent ductus arteriosus: A rare clinical case

Lamassab Nour El Houda1,2, Noha El Ouafi3,1,2, Nabila Ismaili3,1,2

  • 1Faculty of Medicine and Pharmacy, Mohammed I University, Oujda, Morocco.

Radiology Case Reports
|July 7, 2025
PubMed

Insights

Isolated pulmonary valve endocarditis is rare and difficult to diagnose. Echocardiography can detect vegetations, even in unusual cases linked to conditions like patent ductus arteriosus, aiding timely management.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Diagnostic Imaging

Background:

  • Isolated pulmonary valve endocarditis is a rare condition, comprising less than 2% of all infective endocarditis cases.
  • Diagnosis is frequently delayed due to nonspecific symptoms and challenges in visualizing the pulmonary valve via standard echocardiography.

Observation:

  • A case report of a 43-year-old woman with persistent fever and pulmonary symptoms is presented.
  • Transthoracic echocardiography identified a mobile vegetation on the pulmonary valve, despite initial diagnostic delays.
  • A co-existing silent patent ductus arteriosus was discovered, likely contributing to the endocardial infection.

Findings:

  • Echocardiography, when meticulously interpreted, can identify rare valvular pathologies.
  • Clinical vigilance is essential for suspecting pulmonary valve involvement, even in patients without a history of intravenous drug use.

Implications:

  • This case highlights the importance of considering atypical sites for endocarditis.
  • Timely diagnosis and management of pulmonary valve endocarditis are crucial for patient outcomes.
  • Recognizing the role of conditions like patent ductus arteriosus in predisposing to endocarditis is vital.
Keywords:
Coronary computed tomography angiographyPatent ductus arteriosusPulmonary valve endocarditis

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