Lung Regeneration After Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis

Scoliosis Idiopathic Adolescent Clinical Trial

Official title: Lung Regeneration After Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis

Status Completed

Clinical Trial Summary

Adolescent Idiopathic Scoliosis (AIS) is a curvature of the spine that occurs in 1-2% of otherwise healthy children, and requires corrective surgery, posterior spinal fusion (PSF) in ~10% of cases. Some studies suggest that pulmonary function is reduced in AIS and that PSF improves pulmonary function. The lung is composed of a large number of branching airways that terminate in gas exchanging units called alveoli, and the number and structure of these alveoli are partially dependent upon lung volume and the forces to which they are exposed--two factors predicted to be altered in AIS. This study uses MRI imaging of inhaled helium to quantify alveolar structure in children with and without AIS before and one-year after PSF. The goals of the study are to determine if alveolar architecture or number are altered in AIS and whether PSF impacts these same measures.

Clinical Trial Description

After obtaining informed consent, subjects are trained in a breath holding technique that permits obtaining reproducible proton and hyperpolarized helium (HHE) lung images. 3-Helium is obtained from a vendor and hyperpolarized using an optical spin transfer device (FDA Investigational New Drug (IND) 122,670) and administered through a valved inhalation device while in the MRI scanner. Images are obtained during an ~15 second inspiratory breath hold. Proton MRI images are similarly obtained during a breath hold with room air using an ultrashort echo time sequence. From these MRI images, lung volumes, alveolar sizes, and estimated alveolar numbers are derived. Subjects are reimaged at 1 year to evaluate changes in these parameters during normal lung growth (controls) or after PSF (AIS subjects). ;

Related Conditions & MeSH terms

• Scoliosis
• Scoliosis Idiopathic Adolescent

• NCT number: NCT03539770
• Study type: Observational
• Source: Children's Hospital Medical Center, Cincinnati
• Status: Completed
• Start date: November 1, 2014
• Completion date: May 31, 2018