Gary L McPhail1, Zarmina Ehsan2, Sacha A Howells3, R Paul Boesch4, Matthew C Fenchel2, Rhonda Szczesniak2, Viral Jain5, Steven Agabegi5, Peter Sturm5, Eric Wall5, Greg J Redding6. 1. Division of Pulmonary Medicine, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH. Electronic address: gary.mcphail@cchmc.org. 2. Division of Pulmonary Medicine, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH. 3. WordCraft, Medical Writing Consultants, Los Angeles, CA. 4. Division of Pulmonary Medicine, Mayo Children's Hospital, Mayo Medical School, Rochester, MN. 5. Division of Orthopedic Surgery, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH. 6. Division of Pulmonary Medicine, University of Washington, Seattle Children's Hospital, Seattle, WA.
Abstract
OBJECTIVE: To measure the prevalence of obstructive lung disease (OLD) among patients undergoing preoperative pulmonary assessment for idiopathic scoliosis. STUDY DESIGN: This was a retrospective, descriptive review from clinical data in a tertiary care pediatric hospital in the US. Patients (n = 176) with idiopathic scoliosis with Cobb angles of ≥ 40 degrees who performed acceptable and repeatable preoperative pulmonary function testing were included. The primary outcome measure was the forced expiratory volume in the first second (FEV1)/forced vital capacity (FVC) ratio. RESULTS: The prevalence of OLD (low FEV1/FVC ratio) was 39% (68/176 patients). In multivariate modeling, radiographic measures were poor predictors of pulmonary function outcomes of FVC (r(2) 0.06), FEV1 (r(2) 0.05), FEV1/FVC ratio (r(2) 0.08), and total lung capacity (r(2) 0.06). CONCLUSIONS: OLD is common in patients with idiopathic scoliosis. We recommend preoperative pulmonary function testing for patients with idiopathic scoliosis under consideration for spinal fusion surgery.
OBJECTIVE: To measure the prevalence of obstructive lung disease (OLD) among patients undergoing preoperative pulmonary assessment for idiopathic scoliosis. STUDY DESIGN: This was a retrospective, descriptive review from clinical data in a tertiary care pediatric hospital in the US. Patients (n = 176) with idiopathic scoliosis with Cobb angles of ≥ 40 degrees who performed acceptable and repeatable preoperative pulmonary function testing were included. The primary outcome measure was the forced expiratory volume in the first second (FEV1)/forced vital capacity (FVC) ratio. RESULTS: The prevalence of OLD (low FEV1/FVC ratio) was 39% (68/176 patients). In multivariate modeling, radiographic measures were poor predictors of pulmonary function outcomes of FVC (r(2) 0.06), FEV1 (r(2) 0.05), FEV1/FVC ratio (r(2) 0.08), and total lung capacity (r(2) 0.06). CONCLUSIONS: OLD is common in patients with idiopathic scoliosis. We recommend preoperative pulmonary function testing for patients with idiopathic scoliosis under consideration for spinal fusion surgery.
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