An Unlikely Guest: A Case Report of Pulmonary Valve Endocarditis

Authors

  • Carolina Midões Serviço de Medicina 1, Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
  • Sara Barbosa Serviço de Medicina 1, Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
  • Teresa Souto Moura Serviço de Medicina 1, Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
  • Paula Fonseca Serviço de Medicina 1, Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
  • Isabel Marcão Serviço de Medicina 1, Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal

DOI:

https://doi.org/10.60591/crspmi.87

Keywords:

Echocardiography, Endocarditis, Bacterial, Heart Valve Diseases, Pulmonary Valve, Staphylococcal Infections

Abstract

Infective endocarditis is a serious and potentially fatal condition. Right heart involvement is less frequent, preferentially affecting the tricuspid valve, associated with intravenous drug use and with the presence of intracardiac devices. Infective endocarditis of the pulmonary valve is, therefore, very rare (1.5%-2% of cases) and its occurrence as a standalone event is even rarer, with few cases described in the literature. We report a case of native pulmonary valve endocarditis, in a woman without risk factors, with fever and onset of a holosystolic murmur, after 48 hours of hospitalization. The transthoracic echocardiogram showed unique vegetation in the pulmonary valve, which, combined with Staphylococcus aureus bacteremia, confirmed the diagnosis. Evolution was favorable, with resolution after 6 weeks of targeted antibiotic therapy. This case highlights the importance of clinical suspicion and objective examination to identify this pathology, including in the absence of typical risk factors, when diagnosis is especially challenging.

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References

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Published

15-09-2023

How to Cite

Midões, C., Barbosa, S., Souto Moura, T., Fonseca, P., & Marcão, I. (2023). An Unlikely Guest: A Case Report of Pulmonary Valve Endocarditis. SPMI Case Reports, 1(3), 139–144. https://doi.org/10.60591/crspmi.87

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