title: Obstructive lung disease in children with idiopathic scoliosis.
abstract: OBJECTIVE
  To measure the prevalence of obstructive lung disease (OLD) among patients undergoing preoperative pulmonary assessment for idiopathic scoliosis.
  
  
  METHODS
  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.
authors: Division of Pulmonary Medicine, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH. Electronic address: gary.mcphail@cchmc.org.
authors: Gary L
authors: GL
authors: McPhail
authors: Division of Pulmonary Medicine, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Zarmina
authors: Z
authors: Ehsan
authors: WordCraft, Medical Writing Consultants, Los Angeles, CA.
authors: Sacha A
authors: SA
authors: Howells
authors: Division of Pulmonary Medicine, Mayo Children's Hospital, Mayo Medical School, Rochester, MN.
authors: R Paul
authors: RP
authors: Boesch
authors: Division of Pulmonary Medicine, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Matthew C
authors: MC
authors: Fenchel
authors: Division of Pulmonary Medicine, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Rhonda
authors: R
authors: Szczesniak
authors: Division of Orthopedic Surgery, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Viral
authors: V
authors: Jain
authors: Division of Orthopedic Surgery, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Steven
authors: S
authors: Agabegi
authors: Division of Orthopedic Surgery, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Peter
authors: P
authors: Sturm
authors: Division of Orthopedic Surgery, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
authors: Eric
authors: E
authors: Wall
authors: Division of Pulmonary Medicine, University of Washington, Seattle Children's Hospital, Seattle, WA.
authors: Greg J
authors: GJ
authors: Redding
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000453:epidemiology* / Q000209:etiology / Q000503:physiopathology; D008297:Male; D019637:Orthopedic Procedures / Q000379:methods; D011237:Predictive Value of Tests; D057234:Preoperative Period; D015995:Prevalence; D011379:Prognosis; D012129:Respiratory Function Tests / Q000379:methods*; D012189:Retrospective Studies; D012307:Risk Factors; D012600:Scoliosis / Q000150:complications* / Q000453:epidemiology / Q000601:surgery; D014481:United States / Q000453:epidemiology; D014797:Vital Capacity