Publications by authors named "Michael Garcia-Roig"

Rhabdomyosarcoma (RMS) treatment involves surgery, chemotherapy, and radiotherapy. A radioprotective space between the bladder/prostate and rectum reduces postradiation complications, as reported in adult patients. Describe pediatric preradiotherapy perirectal hyaluronic acid (HA) spacer injection for bladder/prostate RMS.

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Circumcision is one of the most common urologic procedures performed at pediatric ambulatory centers. Emerging data on the short- and long-term effects of perioperative opioid administration has highlighted the importance of an opioid-free anesthetic regimen. We sought to evaluate the effectiveness of an opioid-free anesthetic in pediatric circumcision and its correlation with ambulatory surgery center efficiency.

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Introduction: Vesicoureteral reflux is a common pediatric urologic condition that often has several reasonable treatment options depending on condition severity. In order to choose the best treatment for their child, parents are expected to make judgements that weigh attributes such as treatment cost, effectiveness, and complication rate. Prior research has shown that factors such as treating hospital and surgeon also influence patient treatment choice.

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Background: Bladder volume at the onset of vesicoureteral reflux (VUR) is an important prognostic indicator of spontaneous resolution and the risk of pyelonephritis.

Objective: We aim to determine whether pediatric urologists and pediatric radiologists can accurately estimate the timing of reflux by examining voiding cystourethrogram (VCUG) images without prior knowledge of the instilled contrast volume.

Materials And Methods: Total bladder volume and the volume at the time of reflux were collected from VCUG reports to determine the volume at the onset of VUR.

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Introduction: and Objective: Health literacy is defined as the ability to obtain, integrate, and appraise health-related knowledge. It is known to correlate with disparities in clinical outcomes in adults with chronic disease. Patients with spina bifida represent a potentially vulnerable cohort as they often have multiple comorbidities.

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Introduction: There are no guidelines for opioid use after pediatric urologic surgery, and it is unknown to what extent prescriptions written for these patients may be contributing to the opioid epidemic in the United States. We sought to characterize opioid utilization in a prospective fashion following outpatient pediatric urologic surgery at our institution.

Materials And Methods: After obtainingapproval from the Institutional Review Board, we prospectively recruited pediatric patients undergoing outpatient urologic surgery.

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Objective: To quantitatively evaluate parental preferences for the various treatments for vesicoureteral reflux using crowd-sourced best-worst scaling, a novel technique in urologic preference estimation.

Methods: Preference data were collected from a community sample of parents via 2 best-worst scaling survey instruments published to Amazon's Mechanical Turk online community. Attributes and attribute levels were selected following extensive review of the reflux literature.

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Background: Robot-assisted laparoscopic extravesical ureteral reimplantation (RALUR-EV) is a minimally invasive alternative to open surgery. We have previously reported retrospective outcomes from our study group, and herein provide an updated prospective analysis with a focus on success rate, surgical technique, and complications among surgeons who have overcome the initial learning curve.

Objective: To assess the safety and efficacy of RALUR-EV in children, among experienced surgeons.

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Aberrantly expressed miRNAs promote renal cell carcinoma (RCC) growth and metastasis and are potentially useful biomarkers for metastatic disease. However, a consensus clinically significant miRNA signature has not been identified. To identify an miRNA signature for predicting clinical outcome in RCC patients, we used a four-pronged interconnected approach.

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Background: Molecular markers of clinical outcome may aid in designing targeted treatments for bladder cancer. However, only a few bladder cancer biomarkers have been examined as therapeutic targets.

Methods: Data from The Cancer Genome Atlas (TCGA) and bladder specimens were evaluated to determine the biomarker potential of the hyaluronic acid (HA) family of molecules - HA synthases, HA receptors and hyaluronidase.

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Purpose: In September 2011 the AAP (American Academy of Pediatrics) released updated guidelines for the evaluation of children 2 to 24 months old with a febrile urinary tract infection. We documented the impact of the guideline on diagnosis and surgical management of vesicoureteral reflux at U.S.

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Purpose: The Vesicoureteral Reflux Index is a validated tool that reliably predicts spontaneous resolution of reflux or at least 2 grades of improvement for patients diagnosed before age 24 months. We evaluated the Vesicoureteral Reflux Index in children older than 2 years.

Materials And Methods: Patients younger than 18 years who were diagnosed with primary vesicoureteral reflux after age 24 months and had undergone 2 or more voiding cystourethrograms were identified.

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Purpose: The benefits of minimally invasive surgery in pediatric urology, such as reduced length of hospital stay and postoperative pain, are less predictable compared to findings in the adult literature. We evaluated the choices that adult patients make for themselves and their children regarding scar location.

Materials And Methods: We surveyed the preference for scar location/size based on surgery for bladder and kidney procedures with additional questions assessing the impact of a hidden incision, length of hospital stay and pain.

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Introduction: Urinary stasis in the setting of obstruction provides an opportunistic environment for bacterial multiplication and is a well-established risk factor for UTI. Vesicoureteral reflux (VUR) with delayed upper tract drainage (UTD) on VCUG has been reported to correlate with increased UTI risk. We sought to determine whether delayed UTD can be reliably classified, and whether it correlates with UTI incidence, VCUG, or endoscopic findings.

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Vesicoureteral reflux (VUR) is the most common underlying etiology responsible for febrile urinary tract infections (UTIs) or pyelonephritis in children. Along with the morbidity of pyelonephritis, long-term sequelae of recurrent renal infections include renal scarring, proteinuria, and hypertension. Treatment is directed toward the prevention of recurrent infection through use of continuous antibiotic prophylaxis during a period of observation for spontaneous resolution or by surgical correction.

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Objective: To compare health-related quality of life (HRQoL) in children with prune-belly syndrome (PBS) and their caregivers to healthy controls, as children and adolescents with PBS face numerous potential physical and psychosocial challenges.

Materials And Methods: Study participants completed the Pediatric Quality of Life Inventory Generic Core Scales (PedsQL) 4.0 generic core scales (children) or Quality of Life Enjoyment and Satisfaction Questionnaire Short Form (Q-LES-Q-SF) (caregivers) in an online, anonymous format.

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Adolescent varicocele is associated with ipsilateral testicular hypotrophy and the concern for future infertility. A testicular size discrepancy greater than 15-20 % between left and right testicle is an indication for treatment to allow catch-up growth in the hope of preventing a future decline in fertility. Some authors advocate for a period of watchful waiting, as normal testicular growth may occur asymmetrically.

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Purpose: The vesicoureteral reflux index is a novel tool designed to predict spontaneous reflux resolution in infants younger than 2 years. We performed a multi-institutional validation study to confirm the discriminatory power of the vesicoureteral reflux index to predict the vesicoureteral reflux resolution rate in young children.

Materials And Methods: We identified patients diagnosed with primary vesicoureteral reflux before age 24 months who had 2 or more voiding cystourethrograms available.

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Purpose: No consensus exists regarding the most effective procedure for neovagina formation. We describe our experience with modified single Monti tube colovaginoplasty in pediatric patients with disorders of sexual differentiation.

Materials And Methods: Six patients were retrospectively identified who underwent primary sigmoid vaginoplasty with a modified single Monti tube between 2009 and 2012.

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Renal cell carcinoma (RCC) is largely diagnosed incidentally on imaging taken for unrelated reasons. The management of localized lesions is primarily extirpative with excellent results. Treatment of advanced RCC has evolved over recent years with the use of targeted therapies such as tyrosine kinase inhibitors, mammalian target of rapamycin inhibitors, and antibody-mediated therapies.

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The mainstay of treatment for renal cell carcinoma with invasion of the inferior vena cava (IVC) is complete surgical extirpation. Cases complicated by adherent or invasive tumor thrombus represent a special technical challenge due to the need for resection of a large segment of the IVC. The aim of this review is to describe the indications and surgical approach for radical nephrectomy with en bloc resection of the IVC with or without venous reconstruction.

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Purpose: To describe the frequency and severity of atherosclerosis contained within the non-neoplastic tissue of partial nephrectomy (PN) specimens.

Methods: Archived open PN specimens were evaluated for histological evidence of atherosclerosis. Clinically significant atherosclerosis was defined as arterial luminal narrowing of >25% due to fibrointimal thickening.

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Renal cell carcinoma with tumor thrombus of the inferior vena cava presents a special surgical challenge. The use of surgical techniques derived from the field of transplantation surgery have previously been shown to enable optimal control of inferior vena cava, allowing for the extirpation of most tumors via a transabdominal approach without the need for venovenous or cardiopulmonary bypass. In this report, we provide a stepwise description of the transplantation techniques employed at the University of Miami/Jackson Memorial Hospital for the resection of renal cell carcinoma with intracaval tumor.

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