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BACKGROUND Supraglottic airway devices with noninflatable cuff have advantages in omitting the cuff pressure monitoring and reducing potential pharyngolaryngeal complications. Typical devices without cuff inflation available in children are the i-gel and the self-pressurized air-Q intubating laryngeal airway (air-Q SP). To date, there is no comparative(More)
PURPOSE To measure shear wave velocities (SWVs) by acoustic radiation force impulse (ARFI) ultrasound elastography in normal kidneys and in hydronephrotic kidneys in young children and to compare SWVs between the hydronephrosis grades. METHODS This study was approved by an institutional review board, and informed consent was obtained from the parents of(More)
PURPOSE Bladder outlet obstruction (BOO) causes storage and voiding dysfunction in the lower urinary tract. We investigated the expression of transient receptor potential cation channel subfamily M member 8 (TRPM8) to evaluate the relationship between TRPM8 expression and overactive bladder (OAB) in a rat model of BOO. METHODS Fifty female Sprague-Dawley(More)
INTRODUCTION AND HYPOTHESIS Urinary nerve-growth-factor (NGF) level reflected the severity of urgency in patients with lower urinary tract symptoms (LUTS) and pain in patients with Bladder pain syndrome/interstitial cystitis (BPS/IC). The aim of this study was to investigate the levels of biomarkers, nerve growth factor (NGF), and prostaglandin E2 (PGE2)(More)
PURPOSE Intrarenal reflux (IRR) occurs in 3-10% of cases of total reflux and can lead to renal injury, which may eventually result in renal scarring. In this study, we evaluated the clinical importance of IRR detected by voiding cystourethrography and evaluated the relationship between IRR and renal scarring. MATERIALS AND METHODS From January 2002 to May(More)
OBJECTIVE To establish prognostic data regarding fetal hydronephrosis using the anteroposterior diameter (APD) and the need for interventional surgery in the Korean population. METHODS A total of 187 children with an APD of ≥ 4 mm on obstetric ultrasound scans at any gestational age were retrospectively reviewed. The affected renal units were divided into(More)
PURPOSE c-fos expression in spinal neurons that are activated by lower urinary tract stimulation are not organ specific. In this experiment, we demonstrated changes of c-fos expression in bladder-specific preganglionic neurons (PGNs) and interneurons using pseudorabies virus (PRV). MATERIALS AND METHODS Forty Sprague-Dawley rats were used. We identified(More)
OBJECTIVES To assess the clinical utility and safety of laparoendoscopic single-site surgery (LESS) nephrectomy and nephroureterectomy in children by analyzing 6 consecutive cases performed by a single surgeon. METHODS Since March 2009, we have been performing LESS nephrectomy and nephroureterectomy in children. The indications have been recurrent(More)
OBJECTIVES To report our initial experience with transvesicoscopic cross-trigonal ureteral reimplantation (TVUR), describing stepwise the surgical procedure and determining critical aspects of this surgery in the actual surgical field. SUBJECTS AND METHODS Between September 2008 and April 2010, 48 patients with bilateral vesicoureteral reflux (VUR)(More)
OBJECTIVE To assess the clinical characteristics and natural course of segmental multicystic dysplastic kidney (MCDK). METHODS We retrospectively analyzed the medical records of 40 patients (43 renal units) diagnosed as having segmental MCDK between January 2002 and June 2014. Segmental MCDK was classified as typical when it was localized to the upper(More)