Bone mineral density status in urolithiasis patients with vitamin D inadequacy followed at a tertiary stone centre.

Introduction: We assessed abnormalities in bone mineral density (BMD) and the risk of hip and major osteoporotic fractures in urolithiasis patients with vitamin D inadequacy (VDI) followed at a tertiary stone centre.

Methods: Stone-free patients with VDI were invited to undergo dual-energy x-ray absorptiometry (DXA) scans to assess for BMD abnormalities at the femoral neck and lumbar spine. The World Health Organization's validated Fracture Risk Assessment Tool (FRAX) was used to calculate the risk of hip and major osteoporotic fractures within 10 years.

Are stone analysis results different with repeated sampling?

Introduction: We assessed differences in results of stone analyses on subsequent sampling.

Methods: A retrospective review of patients with stone analyses at a tertiary stone centre between March 2006 and July 2012 was performed. All stones were analyzed at a centralized laboratory using infrared spectroscopy.

Quantifying respiratory complications post-adenotonsillectomy in patients with normal or inconclusive overnight oximetry.

Background: Children with sleep-disordered breathing (SDB) are at risk of developing post-operative respiratory complications following adenotonsillectomy (T&A). Our goal was to describe and quantify these complications following T&A in children with clinical SDB but with a pre-operative overnight home oximetry score of "normal/inconclusive" (McGill Oximetry Score (MOS) of 1), and to determine whether these children could safely undergo surgery in peripheral hospitals or outpatient surgical centers.

Methods: We performed a retrospective chart review of patients 3 years and older who had T&A between 2003 and 2010 at 2 of our institution's hospitals.