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Otolaryngology and Infectious Diseases · Journal article
Clinical Practice and Cases in Emergency Medicine · August 6, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is a case report of a middle-aged male with infective endocarditis presenting with altered mental status and cerebral septic emboli, successfully diagnosed and treated with blood cultures, imaging, antibiotics, and neurosurgery. The case illustrates the diagnostic approach recommended for suspected IE and the clinical manifestations of septic brain emboli, but provides no quantitative evidence on incidence, outcomes, or management effectiveness.
Case report. A middle-aged male with recent infective endocarditis and aortic valve prosthesis presenting to the emergency department.. Intervention: Three blood culture sets drawn, intravenous antibiotics initiated within one hour, computed tomography head imaging, magnetic resonance imaging confirmation, neurosurgery craniotomy with brain abscess evacuation, four weeks intravenous ant….
Septic emboli complicate 25% of infective endocarditis cases Mortality from infective endocarditis is 30% Patients with structural cardiac disease or implanted hardware have 23-47% risk for IE
Reported figures on IE mortality, risk, and complication rates are background epidemiology, not results from this case Mortality from infective endocarditis is 30%
The case reinforces the diagnostic and management approach for IE suspicion in patients presenting with altered mental status and sepsis, emphasizing the importance of blood cultures, imaging, and early antimicrobials. Clinicians should maintain a broad differential for altered mental status and evaluate for neurological manifestations of septic emboli in IE patients.
A single case report illustrating clinical presentation and management of a known complication of infective endocarditis; describes diagnostic and treatment approach but carries no comparative evidence or outcome generalizability.
As stated by the source record.
Quoted from the source exactly as published.
The case reinforces the diagnostic and management approach for IE suspicion in patients presenting with altered mental status and sepsis, emphasizing the importance of blood cultures, imaging, and early antimicrobials. Clinicians should maintain a broad differential for altered mental status and evaluate for neurological manifestations of septic emboli in IE patients.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
Introduction: Infective endocarditis (IE) is associated with high mortality (30%). Patients with structural cardiac disease or implanted hardware have higher risk for IE (23-47%). Diagnosis per the 2023 Duke–International Society for Cardiovascular Infectious Diseases criteria is by pathological confirmation or the major/minor criteria. Major criteria include ≥ 2 positive blood culture sets, echocardiography or computed tomography vegetation visualization, and surgical visualization. Septic emboli symptoms (which complicate 25% of IE cases) include neurological deficits or shortness of breath. Early intravenous antimicrobial therapy within one hour for patients who meet sepsis criteria is recommended per Infectious Diseases Society of America guidelines. Case report: A middle-aged male with recent IE and aortic valve prosthesis presented to the emergency department with altered mental status and hypoglycemia. He had right basilar lung rales but no heart murmur, leg swelling, or jugular venous distension. He met sepsis criteria with leukocytosis and hypothermia. Computed tomography head was performed due to his altered mental status and revealed a right parietal-occipital hypodense lesion concerning for an abscess with edema and mass effect. Given his history of IE and ill appearance, three blood culture sets were drawn and intravenous antibiotics initiated. The patient was admitted to the hospital with magnetic resonance imaging confirming brain abscess; and neurosurgery performed a craniotomy with brain abscess evacuation. Intravenous antibiotics were continued for four weeks for septic brain emboli from recent IE. Conclusion: Clinicians should keep a broad differential for altered mental status patients. Sepsis patients should have antimicrobials initiated within one hour. Expedited diagnosis with three sets of blood cultures, echocardiography, and surgical consult should be completed in patients with suspected infective endocarditis for improved patient outcomes. Finally, clinicians should evaluate for septic emboli symptoms such as neurological deficits or respiratory symptoms.
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