Brain abscess associated with ventricular septal defect and Eisenmenger syndrome: A case report

•Brain abscess in patients with Eisenmenger syndrome is extremely rare.•It’s is important to understand and prevent this potentially fatal syndrome.•Perioperative management is an important steps.•Long-term targeted antibiotic therapy can minimize the risk of abscess recurrence.•During surgery, we recommend ensuring that intraoperative blood loss is minimized.