Analysis of clinical characteristics of elderly patients with blood culture-positive bacterial liver abscess

Elderly patients with biliary diseases, hepatitis B, high PCT levels (≥5 ng/mL), small abscesses (≤5 cm), and fever (≥39°C) are at higher risk for blood culture-positive BLA. <i>Klebsiella pneumoniae</i> remains the predominant pathogen (87.93%), highlighting the need for prompt empirical antibiotic therapy. The combined diagnostic model offers reliable predictive value for this condition. We developed a predictive model aimed at assisting clinicians in identifying high-risk patients prone to bloodstream infections secondary to BLA. This model provides valuable guidance for clinicians in formulating more rational and individualized treatment strategies.