Aaron P Bayne

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PURPOSE Abdominoscrotal hydrocele is a poorly understood entity and multiple theories attempt to explain its occurrence. To our knowledge the factors contributing to the formation of abdominoscrotal hydrocele are unknown, as are its cellular, biochemical and hydrostatic properties. We prospectively evaluated abdominoscrotal hydrocele at surgery to define(More)
PURPOSE Minimally invasive approaches to the surgical management of vesicoureteric reflux (VUR) have become more prominent over the last 10 years with progress in both endoscopic and laparoscopic/robotic surgery. We hypothesized that laparoscopic extravesical detrussoraphy (LED) for the management of VUR in children with complex bladders and/or bilateral(More)
Iatrogenic and spontaneous bladder disruption in healthy children during a voiding cystourethrography is very uncommon. We present a case of iatrogenic extraperitoneal bladder rupture in a healthy normal child during the filling phase of a voiding cystourethrography performed by a pediatric radiologist, using routine gravity technique. This injury(More)
PURPOSE Parental decision making in children with vesicoureteral reflux has potentially become more complex with the evolution of ethnic diversity in the United States, the Internet, the publication of contradictory clinical data and the emergence of minimally invasive surgery. We performed a cross-sectional study of parental management for pediatric(More)
PURPOSE Cryptorchidism is a common finding in infants and young boys. Early repair lessens the extent of testicular injury. We hypothesized that anatomical and socioeconomic factors affect the timing of consultation and treatment for boys with cryptorchidism. MATERIALS AND METHODS Under an institutional review board approved protocol we reviewed the(More)
PURPOSE Testicular torsion is a true urological emergency. We determined whether a delay in treatment due to hospital transfer or socioeconomic factors would impact the orchiectomy rate in children with this condition. MATERIALS AND METHODS We retrospectively evaluated the records of boys seen at a single institution emergency department who proceeded to(More)
PURPOSE Laparoscopic orchiopexy is a safe operation. However, the bladder can be injured during creation of the transperitoneal tunnel for the cryptorchid testis. We reviewed our experience with this complication. MATERIALS AND METHODS We searched the operative notes of patients who had undergone laparoscopic orchiopexy between August 15, 2002 and October(More)
PURPOSE Recent comparisons of the impact of the surgical approach on pediatric pyeloplasty outcomes have generally incorporated a form of internal ureteral drainage. We hypothesized that the surgical approach does not affect outcomes in children who undergo unstented pyeloplasty and stenting offers no long-term benefit in those with pediatric pyeloplasty.(More)
Previous studies have failed to fully establish whether ototoxicity is related in any way to the levels of an aminoglycoside antibiotic in the perilymph. To study this we exposed guinea pigs to continuously infused amikacin at four different dosing rates under conditions parallel to those used in our previous study which related ototoxicity to total plasma(More)
The time course of threshold increase in the VIII nerve compound action potential was studied in guinea pigs following amikacin administration at four different constant infusion rates. Despite the wide range of dosing durations required to achieve drug ototoxicity (2-24 days), the full development of both high and low frequency hearing loss was invariably(More)