Abstract
Background Brain abscess is a rare neurological complication in patients with congenital cyanotic heart disease (CCHD). Perioperative complications are high in patients with CCHD. We evaluated incidence of and risk factors for perioperative complications and their impact on clinical outcomes in patients with CCHD undergoing brain abscess surgery with monitored anesthesia care (MAC) or general anesthesia (GA). Methods In this single-center retrospective cohort study, data were collected from consecutive patients with CCHD who presented with brain abscess and underwent surgery from January 2006 to December 2018. Data regarding demographics, type of CCHD, signs and symptoms of brain abscess and CCHD, type and duration of surgery, details of anesthesia, perioperative complications, and clinical outcomes were collected. Chi-square test was used to analyze nonparametric data and student t -test for parametric data. Results Of the 402 patients with brain abscess, data of 34 patients with CCHD who underwent brain abscess surgery were analyzed. The mean age at presentation of brain abscess was 15.8 +/- 10.8 years and duration of symptoms was 17.3 +/- 15.5 days. The incidence of perioperative complications was 82.4% (28/34 patients). Seven patients (20.6%) developed perioperative cyanotic spells which led to cardiac arrest in 5 patients (14.7%) and death in 2 patients (5.9%). Patients on cardiac medications and with high heart rate had higher incidence of cyanotic spells and mortality. Technique of anesthesia did not affect cardiac and neurological outcome. Conclusions Perioperative complications are high after brain abscess surgery in patients with CCHD. Perioperative characteristics and outcomes were similar with MAC and GA techniques.
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