Publications by authors named "Tara Ortiz"

Background: Urinary tract infection is more common in children with spina bifida (SB) than neurologically intact children, and Escherichia coli is the most common urinary pathogen in the general pediatric population. Less is known of the pathogens responsible for urinary tract infections (UTI) in the pediatric SB population or their evolving antimicrobial resistance patterns. The goal of this study is to determine the epidemiology and antimicrobial resistance patterns of SB-associated urinary pathogens.

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Purpose: Urinary tract infections cause significant morbidity in patients with spinal cord injury. An in vivo spinal cord injured rat model of experimental Escherichia coli urinary tract infection mimics human disease with enhanced susceptibility to urinary tract infection compared to controls. We hypothesized that a dysregulated inflammatory response contributes to enhanced susceptibility to urinary tract infection.

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Objective: To evaluate the efficacy of single tract percutaneous nephrolithotomy (sPCNL) and investigate the preoperative predictive factors associated with stone clearance after sPCNL.

Methods: A retrospective review of 351 cases of sPCNL performed at a single institution by 1 of 2 endourologists between January 2000 and March 2010 was performed. The primary outcome evaluated was stone-free rate (SFR) as assessed immediately after either an initial procedure or a second-look nephroscopy performed on postoperative day 2.

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Purpose: We evaluated percutaneous access for percutaneous nephrolithotomy (PCNL) that was obtained by interventional radiologists or urologists at a single academic institution and compared access outcomes and complications.

Patients And Methods: The records of 233 patients who underwent PCNL at the University of Pittsburgh Medical Center between 2000 and 2008 were retrospectively reviewed. Patients were stratified according to percutaneous access by urologists (group 1) or a group of interventional radiologists (group 2) in 195 and 38 patients, respectively.

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