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Bacterial Endocarditis of Anatomically Normal Native Pulmonic Valve with No Predisposing Risk Factors: Case Report

Muhannad Antoun¹, John Deel², Dermot Halpin²

¹Infectious Disease Department, Pikeville Medical Center, Pikeville, KY, USA.

Case Reports in Infectious Diseases

|April 25, 2020

Summary

This study presents a rare case of pulmonic valve endocarditis, a serious heart infection. The patient lacked typical risk factors, highlighting the need for broader diagnostic considerations in infective endocarditis.

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Area of Science:

Cardiology
Infectious Diseases
Valvular Heart Disease

Background:

Right-sided native valve infective endocarditis (IE), involving the tricuspid and pulmonic valves, constitutes 10% of all IE cases.
It is frequently associated with intravenous drug use or cardiac implantable electronic devices (CIEDs).
Pulmonic valve endocarditis (PVE) is exceptionally rare, accounting for only about 1% of all IE cases.

Observation:

A patient presented with a large vegetation on the pulmonic valve.
The patient had no identifiable common risk factors typically associated with right-sided IE.

Findings:

The case details a rare occurrence of pulmonic valve endocarditis.
The presence of a large pulmonic valve vegetation was noted.
Absence of typical risk factors such as intravenous drug use or CIEDs was a key observation.

Implications:

This case expands the understanding of PVE presentation and etiology.
It suggests that PVE can occur in individuals without the usual risk factors.
Further research may be needed to identify potential novel risk factors or mechanisms for PVE.