Septic pulmonary embolism associated with Staphylococcus aureus: case series and review of the literature.

Septic pulmonary embolism (SPE) is a rare, life-threatening disease in children. We assessed the clinical, microbiological, radiological, and treatment results of patients who developed SPE due to Staphylococcus aureus (S. aureus). We retrospectively reviewed the medical records of patients with SPE associated with S. aureus between 2012 and 2023. Six patients were included in the study; the median age was 13 years (range: 9-16 years), and four (66.7%) of them were boys. At admission, the most common complaints were chest pain (83.3%), respiratory distress (83.3%), limb swelling (83.3%), limitation of movement in the extremities (83.3%), fever (50%), fatigue (50%), and cough (16.7%). Extrapulmonary septic foci were identified as follows: septic arthritis in four patients (66.7%), soft tissue infection in one patient (16.7%), and deep vein thrombosis in one patient (16.7%). Methicillin-resistant S. aureus was the most common causative pathogen (66.7%) and methicillin-susceptible S. aureus was found in 33% of patients. The median length of hospital stay was 43.5 days (range: 25-45 days). Three (50%) patients required intensive care, and one required mechanical ventilation support. No mortality was observed. In our study, the clinical and radiological features of staphylococcal SPE in children were nonspecific, similar to the literature. Although no mortality was observed in our study, previous studies have reported mortality rates of up to 11.8% in children with SPE. Early diagnosis, appropriate antibiotic treatment, and respiratory support are important in patients with SPE, especially in low-income settings where timely access to healthcare and diagnostic resources may be limited.