Publications by authors named "Ching Man Carmen Tong"

Importance: Most children and adolescents with kidney and ureteral stones are treated with ureteroscopy, despite the uncertainty and equal weight of guideline recommendations for ureteroscopy or shockwave lithotripsy.

Objective: To compare stone clearance and patient-reported outcomes among children and adolescents after ureteroscopy or shockwave lithotripsy.

Design, Setting, And Participants: This nonrandomized clinical trial enrolled patients between March 16, 2020, and July 31, 2023, at 31 medical centers in the US and Canada.

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Objective: To investigate sexual and reproductive health (SRH) knowledge and practices among young adults with spina bifida (SB), with an emphasis on identifying gaps in SRH literacy and barriers to care.

Design: Sequential explanatory mixed methods study consisting of a disability-specific survey and follow-up interviews.

Setting: Participants were recruited from a multidisciplinary SB clinic.

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Background: Testicular torsion is a pediatric emergency that poses a time-sensitive risk to the testicle. Best practices for testicular torsion protocols remain unclear. We convened the Testicular Torsion Collaborative, leveraging National Surgical Quality Improvement Program Pediatric (NSQIPP) Testicular Torsion Process Measure collection to assess factors associated with favorable metrics.

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Importance: Based on expert opinion, clinical guidelines recommend percutaneous nephrolithotomy or shockwave lithotripsy for children and adolescents with kidney stones 20 mm or larger, without mention of ureteroscopy as an alternative.

Objective: To compare clinical and patient-reported outcomes for percutaneous nephrolithotomy vs ureteroscopy in children and adolescents with kidney and/or ureteral stones.

Design, Setting, And Participants: This prospective cohort study was performed at 31 medical centers in the US and Canada.

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PurposeIndividuals with spina bifida (SB) often face substantial gaps in sexual and reproductive health (SRH) knowledge leading to low use of contraception, poor utilization of preventative sexual health care, unintended pregnancies, missed opportunities to pursue their SRH goals, and increased risk of abuse and coercion. Validated questionnaires are needed to reliably test and track the SRH and self-efficacy of adults with SB. This study aimed to develop a survey with content validity to assess five SRH domains in adults with SB.

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Purpose: There are no standardized guidelines for evaluation of pediatric renal trauma. We hypothesize that screening radiographic studies performed to rule out traumatic renal injuries in children can initially be evaluated by contrast-enhanced CT scans that lack an excretory phase.

Materials And Methods: We retrospectively collected data from 5 pediatric trauma centers between 2007 and 2020.

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Objective: To evaluate characteristics, hospital course, and outcomes of pediatric high-grade renal trauma (HGRT) using the Traumatic Renal Injury Collaborative in Kids consortium.

Methods: This was a retrospective cohort study of a large, multi-center registry of HGRT. Patients <18 years of age with HGRT (grades III, IV, and V) from 2007 to 2020 were included.

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Purpose Of Review: Near-infrared fluorescence imaging (NIRF) with the use of indocyanine green (ICG) has been recently adopted in pediatric urology after its well-published use in the adult population. As a powerful tool that can help delineate complex anatomy and congenital anomalies, we discuss the various applications of this imaging in minimally invasive and open surgery in pediatric urology.

Recent Findings: The most reported applications of ICG in pediatric urology are within minimally invasive surgery, particularly varicoceles, renal surgery such as nephrectomies and renal tumor excision, mimicking its use in adult urology.

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Article Synopsis
  • The study focused on the impact of race and insurance status on high-grade renal trauma (HGRT) among children, analyzing data from a large trauma registry between 2007 and 2020.
  • Out of 341 initially identified pediatric patients with HGRT, differences were observed in the mechanism of injury and presentation age based on race, with African American (AA) patients experiencing more penetrating trauma and younger age at presentation.
  • Insurance status affected the rates of bowel injuries and blood transfusions, and private insurance patients had higher rates of follow-up care, but neither race nor insurance status impacted overall surgical intervention outcomes, post-injury complications, or mortality rates.
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Mateo is a 2-week-old male who presented for evaluation of neonatal fever and whose parents speak Spanish. Workup revealed pyelonephritis, underlying renal anomalies, and vesicoureteral reflux. A complex interplay of individual and contextual factors contributed to Mateo not receiving prophylactic antibiotics, which ultimately led to a potentially preventable subsequent admission for sepsis secondary to Escherichia coli pyelonephritis with bacteremia.

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Pediatric nephrolithiasis is less common in children than in adults but the incidence has been rising rapidly, and it is now a public health and economic burden in the United States. There are challenges unique to children that should be taken into consideration when evaluating and managing pediatric stone disease. In this review, we present the current research on risk factors, emerging new technologies for treatment of stones and recent investigations on prevention of stones in this population.

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Disruption of the blood-urine barrier can result in acute or chronic inflammatory bladder injury. Activation of the oxygen-regulated hypoxia-inducible factor (HIF) pathway has been shown to protect mucosal membranes by increasing the expression of cytoprotective genes and by suppressing inflammation. The activity of HIF is controlled by prolyl hydroxylase domain (PHD) dioxygenases, which have been exploited as therapeutic targets for the treatment of anemia of chronic kidney disease.

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Background: Improvements in antenatal medicine and surgical management for conditions associated with spina bifida such as hydrocephalus have extended the lifespan for individuals with spina bifida (SB) into adulthood. Decisions and education regarding reproductive care and pregnancies for patients with spina bifida are increasingly important. Pregnancy in these patients can be particularly challenging due to physical limitations, previous abdominal surgery for urinary or bowel management and presence of a ventriculoperitoneal shunt.

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We report a rare case of newberyite (magnesium monohydrate phosphate trihydrate) urolithiasis in a young female with a past medical history significant for longstanding autoimmune hepatitis. She presented to the emergency department with newly diagnosed nephrolithiasis. Over the next 2 years, she had recurrent renal calculi and 3 urologic procedures.

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Medical advances in the last several decades have allowed an increasing number of children with spina bifida to reach adolescence and adulthood. As they reach puberty, girls with spina bifida face unique social and health challenges to their sexuality, such as orthopedic restrictions, continence, and pelvic floor disorders. Recent research efforts have focused on better understanding female sexual desires, dysfunctions, and activity and the role of the physician in educating this vulnerable population.

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This article provides a reusable dataset describing detailed phenotypic and associated clinical parameters in n=303 clinical isolates of urinary collected at Vanderbilt University Medical Center. De-identified clinical data collected with each isolate are detailed here and correlated to biofilm abundance and metabolomics data. Biofilm-abundance data were collected for each isolate under different conditions along with datasets quantifying biofilm abundance of each isolate under different conditions.

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Urinary tract infections (UTIs) represent a major burden across the population, although key facets of their pathophysiology and host interaction remain unclear. Escherichia coli epitomizes these obstacles: this gram-negative bacterial species is the most prevalent agent of UTIs worldwide and can also colonize the urogenital tract in a phenomenon known as asymptomatic bacteriuria (ASB). Unfortunately, at the level of the individual E.

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Background: Inflatable penile prosthesis (IPP) surgery is associated with significant perioperative pain that may reduce patient satisfaction. Though various pain management strategies have been proposed, most implanters manage postoperative patients with only prescription opioids. No protocol to date has been implemented and reported for pain management in IPP patients throughout the entire recovery process following surgery.

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