953 Role of Routine Preoperative Echocardiograms in Adolescent Idiopathic Scoliosis Patients undergoing Deformity Correction Surgery

Introduction Patients with Adolescent Idiopathic Scoliosis (AIS) are often noted to have routine preoperative Echocardiograms (ECHO). The prevalence of ECHO abnormalities and their impact on perioperative outcome is not clear, especially balancing against its costs. The study aims at identifying the significance of routine preoperative ECHO for AIS patients. Methodology Clinical records of 295 adolescent AIS patients, >10years age (mean 15.64years), who underwent primary posterior corrective surgery in a tertiary spinal centre, between 2015-2020, were reviewed. Patients with revision surgery, anterior correction, syndromic/neuromuscular scoliosis and/or pre-existent known cardiac comorbidities were excluded. Results 139(47%) patients had preoperative ECHO. 21(15%) patients showed echocardiographic abnormalities (11 trivial valvular abnormalities, 5 mild root dilatation, 3 mild pericardial effusion and 2 septal defects). None of these patients showed any clinical symptoms/signs or required Cardiology assessment; and none had perioperative cardiovascular complications. Conversely, four(1.36%) patients demonstrated auscultatory murmurs on preoperative clinical assessment. None reported any perioperative complication. The average known cost of an echocardiogram was noted to be £363. Conclusions Routine preoperative Echocardiogram for all AIS patients is not recommended or deemed cost-effective. Positive clinical assessment finding could be used as a screening tool for performing ECHO in AIS patients.