Research Overview

Caleb P. Nelson, MD, MPH, is a pediatric urologist and a clinical and health services researcher. His research seeks both to improve the evidence base in pediatric urology, and to investigate problems in health services delivery including over- and under-use, unwarranted variation, and patient safety. He has been involved in significant clinical studies both locally and nationally, and also has a large experience with use of administrative databases to evaluate trends and practice patterns in urological care. His particular clinical areas of research interest include vesicoureteral reflux (VUR), kidney stones, hydronephrosis, and medical imaging.

Dr. Nelson is a site PI for the NIH-funded RIVUR study, a large multicenter randomized controlled trial of antibiotic prophylaxis in children with VUR. He also has a K23 career development award from the NIH (NIDDK) for the study of clinical outcomes among siblings of children with VUR. He is also conducting research on pediatric kidney stones, seeking to evaluate factors that cause stones, and improve the safety and quality of treatment of kidney stone in children.

Active Projects:

2010-2015 Clinical Outcomes and Decision-Making for Siblings of Children with Vesico-Ureteral Reflux

NIDDK 1K23DK088943-01
Principal Investigator

K23 Career Development Award. This research project seeks learn more about the best way to manage vesicoureteral reflux (backwards flow of urine from the bladder up to the kidneys) among siblings of children with vesicoureteral reflux (VUR). Although some people advocate testing these siblings for VUR even if they seem healthy, such “screening” would subject large numbers of asymptomatic children to invasive tests with potentially adverse effects, long-term follow-up, prolonged antibiotic use, and possible surgery. Therefore, it is important that we learn more about VUR in these siblings in order to decide whether such screening is indicated.

Research Background

Dr. Nelson attended Dartmouth College and received his MD degree from Duke University. He completed a urology residency at the University of Michigan in Ann Arbor, where he also received an MPH in epidemiology and completed an NIH-funded Clinical Research Training Fellowship. He then completed a pediatric urology fellowship at the Johns Hopkins Hospital in Baltimore, MD. He has been a member of the faculty of Harvard Medical School, and an attending surgeon at Boston Children’s Hospital, since 2006. He is an assistant editor for the section of population and health services research for the Journal of Pediatric Urology. He is a member of the Society for Pediatric Urology, the American Urological Association, and the Society of Fetal Urology.

Education

Undergraduate School

Dartmouth College
1992 Hanover NH

Medical School

Duke University School of Medicine
1997 Durham NC

Internship

Surgery University of Michigan Medical Center
1998 Ann Arbor MI

Residency

Urology University of Michigan Medical Center
2002 Ann Arbor MA

Residency

Chief Urology Resident University of Michigan Medical Center
2002 Ann Arbor MI

Fellowship

Clinical Research Training Program University of Michigan Hospitals
2004 Ann Arbor MI

Fellowship

Pediatric Urology The Brady Urological Institute, Johns Hopkins Hospital
2006 Baltimore MD

Graduate School

University of Michigan School of Public Health
2003 Ann Arbor MI

Media

Caregiver Profile

Meet Dr. Caleb Nelson

Condition Q&A

What is Hydronephrosis?

Condition Q&A

How can hydronephrosis be treated?

Condition Q&A

What is involved in hydronephrosis surgery and aftercare?

Publications

  1. Use of an enuresis alarm to guide timing of post-void residual volume assessment in infants and medically-complex, non-verbal children. Urology. 2025 Jan 20. View Abstract
  2. Response to the editorial commentary on 'When you cannot trust what you see: The confounding effect'. J Pediatr Urol. 2025 Jan 09. View Abstract
  3. Exploring AI: Transforming medical practice, education and research. J Pediatr Urol. 2024 Dec 19. View Abstract
  4. Randomized controlled trials - The what, when, how and why. J Pediatr Urol. 2024 Dec 03. View Abstract
  5. Commentary to "What matters in testicular torsion? Association of hospital transfer, race and socioeconomic factors with testicular outcomes in a single center experience". J Pediatr Urol. 2024 Nov 30. View Abstract
  6. When you cannot trust what you see: The confounding effect. J Pediatr Urol. 2024 Nov 28. View Abstract
  7. AI-PEDURO - Artificial intelligence in pediatric urology: Protocol for a living scoping review and online repository. J Pediatr Urol. 2024 Oct 05. View Abstract
  8. Short communication: A pilot study to determine safety and feasibility of a commercial enuresis alarm to detect voiding in infants. J Pediatr Urol. 2024 Aug; 20(4):765-766. View Abstract
  9. Factors contributing to telemedicine efficacy in pediatric urology. J Pediatr Urol. 2024 Aug; 20(4):694.e1-694.e7. View Abstract
  10. Elevating pediatric urology care: The crucial role of nursing research in quality improvement. J Pediatr Urol. 2024 Jun; 20(3):528-529. View Abstract
  11. Surgeon, and Institution Characteristics Associated Surgical Preferences in the Pediatric KIDney Stone Care Improvement Network. Urology. 2024 May; 187:64-70. View Abstract
  12. Reply to commentary by Rushton et al. on "Urology Mythbusters: Does prevalence of vesicoureteral reflux in children vary by race?" J Pediatr Urol. 2024 Jun; 20(3):521. View Abstract
  13. Urology Mythbusters: Does prevalence of vesicoureteral reflux in children vary by race? J Pediatr Urol. 2024 Jun; 20(3):514-518. View Abstract
  14. Elevating pediatric urology care: The crucial role of nursing research in quality improvement. J Pediatr Urol. 2024 Jun; 20(3):522-525. View Abstract
  15. Editorial. J Pediatr Urol. 2024 02; 20(1):1-2. View Abstract
  16. The importance of animal specificity in animal experimentation, part II: Physiological challenges and opportunities in relation to pediatric urology. J Pediatr Urol. 2024 04; 20(2):315-317. View Abstract
  17. The importance of animal specificity in animal experimentation, part I: Anatomy in relation to pediatric urology. J Pediatr Urol. 2024 04; 20(2):312-314. View Abstract
  18. A machine learning algorithm predicting risk of dilating VUR among infants with hydronephrosis using UTD classification. J Pediatr Urol. 2024 04; 20(2):271-278. View Abstract
  19. Editorial. J Pediatr Urol. 2023 12; 19(6):683. View Abstract
  20. Artificial Intelligence in Pediatric Urology. Urol Clin North Am. 2024 Feb; 51(1):91-103. View Abstract
  21. Editorial. J Pediatr Urol. 2023 10; 19(5):509. View Abstract
  22. Regulatory oversight in quality improvement and patient safety: A guidance statement from the Journal of Pediatric Urology. J Pediatr Urol. 2023 12; 19(6):684-685. View Abstract
  23. Editorial. J Pediatr Urol. 2023 08; 19(4):365. View Abstract
  24. Association between lower limb spasticity and cryptorchidism in males with cerebral palsy. Dev Med Child Neurol. 2024 Jan; 66(1):82-86. View Abstract
  25. Vesicoureteral Reflux: Current Care Trends and Future Possibilities. Urol Clin North Am. 2023 Aug; 50(3):391-402. View Abstract
  26. Editorial. J Pediatr Urol. 2023 06; 19(3):229. View Abstract
  27. Is cerebral palsy associated with successful ureteral access during the initial attempt at ureteroscopy for urolithiasis in children and young adults? J Pediatr Urol. 2023 08; 19(4):369.e1-369.e6. View Abstract
  28. Characterizing digital access in pediatric urology. J Pediatr Urol. 2023 10; 19(5):523.e1-523.e6. View Abstract
  29. Editorial. J Pediatr Urol. 2023 04; 19(2):155. View Abstract
  30. What are validated questionnaires and which ones measure quality of life? J Pediatr Urol. 2023 08; 19(4):469-470. View Abstract
  31. Accuracy of telemedicine for diagnosis and pre-operative assessment of pediatric penile conditions. J Pediatr Urol. 2023 10; 19(5):521.e1-521.e7. View Abstract
  32. False-positive urine pregnancy screening tests are uncommon in the hospital setting among patients with bowel-containing urinary tract reconstruction. J Pediatr Urol. 2023 06; 19(3):312.e1-312.e4. View Abstract
  33. Editorial. J Pediatr Urol. 2023 02; 19(1):1. View Abstract
  34. OXGR1 is a candidate disease gene for human calcium oxalate nephrolithiasis. Genet Med. 2023 03; 25(3):100351. View Abstract
  35. Restoring the pediatric urology peer review pipeline: "Journal peer review university" case study. J Pediatr Urol. 2023 02; 19(1):2-3. View Abstract
  36. Editorial. J Pediatr Urol. 2022 Oct; 18(5):547. View Abstract
  37. Hybrid Clinics: A New Model for Ambulatory Care to Reduce Infection Risk. Telemed J E Health. 2023 04; 29(4):560-568. View Abstract
  38. Editorial. J Pediatr Urol. 2022 Aug; 18(4):407-408. View Abstract
  39. Comparing Pediatric Ureteroscopy Outcomes with SuperPulsed Thulium Fiber Laser and Low-Power Holmium:YAG Laser. J Urol. 2022 08; 208(2):426-433. View Abstract
  40. Is parenteral antibiotic prophylaxis associated with fewer infectious complications in stented, distal hypospadias repair? J Pediatr Urol. 2022 12; 18(6):759-763. View Abstract
  41. Normative values for ureteral diameter in children. Pediatr Radiol. 2022 07; 52(8):1492-1499. View Abstract
  42. Dietary Risk Factors for Pediatric Kidney Stones: A Case-Control Study. J Urol. 2022 08; 208(2):434-440. View Abstract
  43. Top-Down versus Bottom-Up Approach in Children Presenting with Urinary Tract Infection: Comparative Effectiveness Analysis Using RIVUR and CUTIE Data. Reply. J Urol. 2022 04; 207(4):940-941. View Abstract
  44. Malignancy Yield of Testis Pathology in Older Boys and Adolescents with Cryptorchidism. J Urol. 2022 Mar; 207(3):694-700. View Abstract
  45. Top-Down versus Bottom-Up Approach in Children Presenting with Urinary Tract Infection: Comparative Effectiveness Analysis Using RIVUR and CUTIE Data. J Urol. 2021 11; 206(5):1284-1290. View Abstract
  46. Editorial. J Pediatr Urol. 2021 06; 17(3):283. View Abstract
  47. Editorial. J Pediatr Urol. 2021 04; 17(2):139-140. View Abstract
  48. Flat Panel Detector c-Arms Are Associated with Dramatically Reduced Radiation Exposure During Ureteroscopy and Produce Superior Images. J Endourol. 2021 06; 35(6):789-794. View Abstract
  49. Commentary to 'Perceptions of gender equity in pediatric urology'. J Pediatr Urol. 2021 06; 17(3):407. View Abstract
  50. Changes in Clinical Presentation and Renal Outcomes among Children with Febrile Urinary Tract Infection: 2005 vs 2015. J Urol. 2021 06; 205(6):1764-1769. View Abstract
  51. Contemporary Management of Urinary Tract Infection in Children. Pediatrics. 2021 02; 147(2). View Abstract
  52. Reply by Authors. J Urol. 2021 04; 205(4):1198. View Abstract
  53. Editorial. J Pediatr Urol. 2021 02; 17(1):1. View Abstract
  54. Selecting Children with Vesicoureteral Reflux Who are Most Likely to Benefit from Antibiotic Prophylaxis: Application of Machine Learning to RIVUR. J Urol. 2021 04; 205(4):1170-1179. View Abstract
  55. Editorial. J Pediatr Urol. 2020 12; 16(6):747-748. View Abstract
  56. Pattern recognition algorithm to identify detrusor overactivity on urodynamics. Neurourol Urodyn. 2021 01; 40(1):428-434. View Abstract
  57. Antireflux Surgery at National Surgical Quality Improvement Program-Pediatric Hospitals. J Urol. 2021 04; 205(4):1189-1198. View Abstract
  58. Timing and outcomes of testicular torsion during the COVID-19 crisis. J Pediatr Urol. 2020 Dec; 16(6):841.e1-841.e5. View Abstract
  59. Children's experience with daytime and nighttime urinary incontinence - A qualitative exploration. J Pediatr Urol. 2020 Oct; 16(5):535.e1-535.e8. View Abstract
  60. Experience with implementation of a nurse practitioner-led newborn circumcision clinic. J Pediatr Urol. 2020 Oct; 16(5):651.e1-651.e7. View Abstract
  61. Adjuvant pharmacological and surgical therapy for testicular torsion: Current state of the art. J Pediatr Urol. 2020 Dec; 16(6):807-814. View Abstract
  62. New instructions for authors specific to survey studies submitted to JPU. J Pediatr Urol. 2020 08; 16(4):416-417. View Abstract
  63. Pharmacological Dilutional Therapy Using the Vasopressin Antagonist Tolvaptan for Young Patients With Cystinuria: A Pilot Investigation. Urology. 2020 10; 144:65-70. View Abstract
  64. Editorial. J Pediatr Urol. 2020 06; 16(3):269. View Abstract
  65. Meetings - An American viewpoint. J Pediatr Urol. 2020 06; 16(3):275. View Abstract
  66. "Ramping up telemedicine in pediatric urology- Tips for using a new modality". J Pediatr Urol. 2020 06; 16(3):288-289. View Abstract
  67. Editorial. J Pediatr Urol. 2020 04; 16(2):121. View Abstract
  68. Response to commentary Re: 'Urology Mythbusters: Are topical corticosteroids effective for treating post-circumcision penile adhesions?' J Pediatr Urol. 2020 04; 16(2):229. View Abstract
  69. Urology Mythbusters: are topical corticosteroids effective for treating postcircumcision penile adhesions? J Pediatr Urol. 2020 04; 16(2):222-226. View Abstract
  70. Editorial. J Pediatr Urol. 2020 02; 16(1):1. View Abstract
  71. Accuracy of Ultrasound in Identifying Renal Scarring as Compared to DMSA Scan. Urology. 2020 04; 138:134-137. View Abstract
  72. Telemedicine for Pediatric Urological Postoperative Care is Safe, Convenient and Economical. J Urol. 2020 07; 204(1):144-148. View Abstract
  73. Editorial. J Pediatr Urol. 2019 Dec; 15(6):593-594. View Abstract
  74. Editorial Comment. J Urol. 2019 12; 202(6):1261-1262. View Abstract
  75. Interobserver Reliability of the Antenatal Consensus Classification System for Urinary Tract Dilatation. J Ultrasound Med. 2020 Mar; 39(3):551-557. View Abstract
  76. Urology mythbusters: do we need to surgically correct vesicoureteral reflux in older girls to prevent problems in future pregnancy? (revision 1). J Pediatr Urol. 2019 Dec; 15(6):668-671. View Abstract
  77. What the editors are reading: population and health services. J Pediatr Urol. 2019 10; 15(5):565-567. View Abstract
  78. Why Does Prevention of Recurrent Urinary Tract Infection not Result in Less Renal Scarring? A Deeper Dive into the RIVUR Trial. J Urol. 2019 08; 202(2):400-405. View Abstract
  79. The Use of Telemedicine for the Postoperative Urological Care of Children: Results of a Pilot Program. J Urol. 2019 07; 202(1):159-163. View Abstract
  80. Targeted Workup after Initial Febrile Urinary Tract Infection: Using a Novel Machine Learning Model to Identify Children Most Likely to Benefit from Voiding Cystourethrogram. J Urol. 2019 07; 202(1):144-152. View Abstract
  81. Interobserver and Intra-Observer Reliability of the Urinary Tract Dilation Classification System in Neonates: A Multicenter Study. J Urol. 2019 06; 201(6):1186-1192. View Abstract
  82. The association of postnatal urinary tract dilation risk score with clinical outcomes. J Pediatr Urol. 2019 Aug; 15(4):341.e1-341.e6. View Abstract
  83. Conflict of Interest, Self-Reporting and Our Profession. J Urol. 2019 04; 201(4):678-679. View Abstract
  84. Patient- and Nurse-Controlled Analgesia: 22-Year Experience in a Pediatric Hospital. Hosp Pediatr. 2019 02; 9(2):129-133. View Abstract
  85. Urology Mythbusters: should hydronephrosis grade be used to decide which newborns should undergo voiding cystourethrogram? J Pediatr Urol. 2019 Feb; 15(1):93-96. View Abstract
  86. The effect of surgeon versus technologist control of fluoroscopy on radiation exposure during pediatric ureteroscopy: A randomized trial. J Pediatr Urol. 2018 08; 14(4):334.e1-334.e8. View Abstract
  87. Response to letter to the editor re "The effect of surgeon vs. technologist control of fluoroscopy on radiation exposure during pediatric ureteroscopy: A randomized trial". J Pediatr Urol. 2018 08; 14(4):363. View Abstract
  88. Has the robot caught up? National trends in utilization, perioperative outcomes, and cost for open, laparoscopic, and robotic pediatric pyeloplasty in the United States from 2003 to 2015. J Pediatr Urol. 2018 08; 14(4):336.e1-336.e8. View Abstract
  89. Editorial Comment. J Urol. 2018 03; 199(3):836. View Abstract
  90. Minor procedure, major impact: Patient-reported outcomes following urethral meatotomy. J Pediatr Urol. 2018 04; 14(2):165.e1-165.e5. View Abstract
  91. Whole exome sequencing frequently detects a monogenic cause in early onset nephrolithiasis and nephrocalcinosis. Kidney Int. 2018 01; 93(1):204-213. View Abstract
  92. Advances in paediatric urology. Lancet. 2017 Sep 09; 390(10099):1061-1071. View Abstract
  93. Bladder debris on renal and bladder ultrasound: A significant predictor of positive urine culture. J Pediatr Urol. 2017 Aug; 13(4):385.e1-385.e5. View Abstract
  94. Population and health services. J Pediatr Urol. 2017 06; 13(3):280. View Abstract
  95. Urology mythbusters: The 5:1 ratio in ureteral reimplantation. J Pediatr Urol. 2017 04; 13(2):187-188. View Abstract
  96. Urology Mythbusters: Introducing a new feature of the journal. J Pediatr Urol. 2017 04; 13(2):122. View Abstract
  97. Re: "Sureka SK, Patidar N, Mittal V, Kapoor R, Srivastava A, Kishore K, et al. Safe and optimal pneumoperitoneal pressure for transperitoneal laparoscopic renal surgery in infant less than 10 kg, looked beyond intraoperative period: A prospective randomized study." J Pediatr Urol 2016;12:281.e1-281.e7. J Pediatr Urol. 2017 04; 13(2):236. View Abstract
  98. Blunt Abdominal Trauma from Motor Vehicle Collisions from 2007 to 2011: Renal Injury Probability and Severity in Children versus Adults. J Urol. 2017 03; 197(3 Pt 2):906-910. View Abstract
  99. Imaging in the diagnosis of pediatric urolithiasis. Pediatr Radiol. 2017 Jan; 47(1):5-16. View Abstract
  100. Utility Estimation for Pediatric Vesicoureteral Reflux: Methodological Considerations Using an Online Survey Platform. J Urol. 2017 03; 197(3 Pt 1):805-810. View Abstract
  101. Variation in the level of detail in pediatric voiding cystourethrogram reports. J Pediatr Urol. 2017 Jun; 13(3):257-262. View Abstract
  102. MRI-based reference range for the renal pelvis anterior-posterior diameter in children ages 0-19 years. Br J Radiol. 2016 Nov; 89(1067):20160211. View Abstract
  103. Reliability of grading of vesicoureteral reflux and other findings on voiding cystourethrography. J Pediatr Urol. 2017 Apr; 13(2):192-198. View Abstract
  104. Robotic versus open pediatric ureteral reimplantation: Costs and complications from a nationwide sample. J Pediatr Urol. 2016 Dec; 12(6):408.e1-408.e6. View Abstract
  105. Editorial Comment. Urology. 2016 11; 97:192-193. View Abstract
  106. The Decline of the Open Ureteral Reimplant in the United States: National Data From 2003 to 2013. Urology. 2017 Feb; 100:193-197. View Abstract
  107. Surgical Management of Stones: American Urological Association/Endourological Society Guideline, PART II. J Urol. 2016 Oct; 196(4):1161-9. View Abstract
  108. Surgical Management of Stones: American Urological Association/Endourological Society Guideline, PART I. J Urol. 2016 Oct; 196(4):1153-60. View Abstract
  109. Introduction: Population and Health Services Research. J Pediatr Urol. 2016 Jun; 12(3):150. View Abstract
  110. Mutations in SLC26A1 Cause Nephrolithiasis. Am J Hum Genet. 2016 06 02; 98(6):1228-1234. View Abstract
  111. Antimicrobial Resistance and Urinary Tract Infection Recurrence. Pediatrics. 2016 Apr; 137(4). View Abstract
  112. Population and Health Services Research. J Pediatr Urol. 2015 Dec; 11(6):320. View Abstract
  113. Incidence of Urinary Tract Infection Among Siblings of Children With Vesicoureteral Reflux. Acad Pediatr. 2016 07; 16(5):489-495. View Abstract
  114. Imaging and surgical utilization for pediatric cystinuria patients: A single-institution cohort study. J Pediatr Urol. 2016 Apr; 12(2):106.e1-7. View Abstract
  115. Association of BMI and pediatric urologic postoperative events: Results from pediatric NSQIP. J Pediatr Urol. 2015 Aug; 11(4):224.e1-6. View Abstract
  116. 30-Day morbidity after augmentation enterocystoplasty and appendicovesicostomy: A NSQIP pediatric analysis. J Pediatr Urol. 2015 Aug; 11(4):209.e1-6. View Abstract
  117. Management of Proximal Hypospadias with 2-Stage Repair: 20-Year Experience. J Urol. 2015 Oct; 194(4):1080-5. View Abstract
  118. Utility scores for vesicoureteral reflux and anti-reflux surgery. J Pediatr Urol. 2015 Aug; 11(4):177-82. View Abstract
  119. Predictive value of specific ultrasound findings when used as a screening test for abnormalities on VCUG. J Pediatr Urol. 2015 Aug; 11(4):176.e1-7. View Abstract
  120. Urinary incontinence in spina bifida: Initial instrument validation. Res Dev Disabil. 2015 May; 40:42-50. View Abstract
  121. Imaging after urinary tract infection in older children and adolescents. J Urol. 2015 May; 193(5 Suppl):1778-82. View Abstract
  122. Population and health services research. J Pediatr Urol. 2014 Aug; 10(4):706. View Abstract
  123. Fourteen monogenic genes account for 15% of nephrolithiasis/nephrocalcinosis. J Am Soc Nephrol. 2015 Mar; 26(3):543-51. View Abstract
  124. Variation in the documentation of findings in pediatric voiding cystourethrogram. Pediatr Radiol. 2014 Dec; 44(12):1548-56. View Abstract
  125. Antimicrobial prophylaxis for children with vesicoureteral reflux. N Engl J Med. 2014 06 19; 370(25):2367-76. View Abstract
  126. Estimating utility values for vesicoureteral reflux in the general public using an online tool. J Pediatr Urol. 2014 Dec; 10(6):1026-31. View Abstract
  127. Evaluation of a mobile voiding diary for pediatric patients with voiding dysfunction: a prospective comparative study. J Urol. 2014 Sep; 192(3):908-13. View Abstract
  128. Ultrasound as a screening test for genitourinary anomalies in children with UTI. Pediatrics. 2014 Mar; 133(3):e394-403. View Abstract
  129. Nationwide emergency department imaging practices for pediatric urolithiasis: room for improvement. J Urol. 2014 Jul; 192(1):200-6. View Abstract
  130. Use of the i2b2 research query tool to conduct a matched case-control clinical research study: advantages, disadvantages and methodological considerations. BMC Med Res Methodol. 2014 Jan 30; 14:16. View Abstract
  131. Practice patterns and resource utilization for infants with bladder exstrophy: a national perspective. J Urol. 2014 May; 191(5):1381-8. View Abstract
  132. Population & health services research. J Pediatr Urol. 2013 Dec; 9(6):699. View Abstract
  133. National trends of perioperative outcomes and costs for open, laparoscopic and robotic pediatric pyeloplasty. J Urol. 2014 Apr; 191(4):1090-5. View Abstract
  134. New contralateral vesicoureteral reflux after unilateral ureteral reimplantation: predictive factors and clinical outcomes. J Urol. 2014 Feb; 191(2):451-7. View Abstract
  135. Trends in revision circumcision at pediatric hospitals. Clin Pediatr (Phila). 2013 Aug; 52(8):699-706. View Abstract
  136. Risk factors for urolithiasis in gastrostomy tube fed children: a case-control study. Pediatrics. 2013 Jul; 132(1):e167-74. View Abstract
  137. The Publication Ranking Score for pediatric urology: quantifying thought leadership within the subspecialty. J Pediatr Urol. 2013 Dec; 9(6 Pt B):1108-1113. View Abstract
  138. Values and pitfalls of the use of administrative databases for outcomes assessment. J Urol. 2013 Jul; 190(1):17-8. View Abstract
  139. Prospective systematic intervention to reduce patient exposure to radiation during pediatric ureteroscopy. J Urol. 2013 Oct; 190(4 Suppl):1474-8. View Abstract
  140. Quality assessment of economic analyses in pediatric urology. Urology. 2013 Feb; 81(2):263-7. View Abstract
  141. Editorial comment. J Urol. 2013 Apr; 189(4):1529; discussion 1529. View Abstract
  142. Patient and family impact of pediatric genitourinary diagnostic imaging tests. J Urol. 2012 Oct; 188(4 Suppl):1601-7. View Abstract
  143. Spontaneous resolution of isolated congenital megacystis: the incredible shrinking bladder. J Pediatr Urol. 2013 Feb; 9(1):e46-50. View Abstract
  144. Association of urolithiasis with systemic conditions among pediatric patients at children's hospitals. J Urol. 2012 Oct; 188(4 Suppl):1618-22. View Abstract
  145. Clinical outcomes and long-term resolution in patients with persistent vesicoureteral reflux after open ureteral reimplantation. J Urol. 2012 Oct; 188(4 Suppl):1474-9. View Abstract
  146. The impact of electrocautery method on post-operative bleeding complications after non-newborn circumcision and revision circumcision. J Pediatr Urol. 2013 Oct; 9(5):634-7. View Abstract
  147. Prospective measurement of patient exposure to radiation during pediatric ureteroscopy. J Urol. 2012 Apr; 187(4):1408-14. View Abstract
  148. Shock wave lithotripsy vs ureteroscopy: variation in surgical management of kidney stones at freestanding children's hospitals. J Urol. 2012 Apr; 187(4):1402-7. View Abstract
  149. Long-term incidence of urinary tract infection after ureteral reimplantation for primary vesicoureteral reflux. J Pediatr Urol. 2013 Feb; 9(1):92-8. View Abstract
  150. Durability of antireflux effect of ureteral reimplantation for primary vesicoureteral reflux: findings on long-term cystography. Urology. 2012 Mar; 79(3):675-9. View Abstract
  151. Racial variation in timing of pyeloplasty: prenatal versus postnatal diagnosis. J Urol. 2011 Dec; 186(6):2386-91. View Abstract
  152. Development and implementation of a photographic atlas for parental instruction and guidance after outpatient penile surgery. J Pediatr Urol. 2012 Oct; 8(5):521-6. View Abstract
  153. Screening for malignancy after augmentation cystoplasty in children with spina bifida: a decision analysis. J Urol. 2011 Oct; 186(4):1437-43. View Abstract
  154. Does a controversial topic affect the quality of urologic information on the Internet? Urology. 2011 Nov; 78(5):1051-6. View Abstract
  155. Economic and radiation costs of initial imaging approaches after a child's first febrile urinary tract infection. Clin Pediatr (Phila). 2012 Jan; 51(1):23-30. View Abstract
  156. Use of the ureteral access sheath during ureteroscopy in children. J Urol. 2011 Oct; 186(4 Suppl):1728-33. View Abstract
  157. Contemporary use of nephron-sparing surgery for children with malignant renal tumors at freestanding children's hospitals. Urology. 2011 Aug; 78(2):422-6. View Abstract
  158. Complete primary repair of bladder exstrophy: a single institution referral experience. J Urol. 2011 Sep; 186(3):1041-6. View Abstract
  159. Recent trends in the use of antibiotic prophylaxis in pediatric surgery. J Pediatr Surg. 2011 Feb; 46(2):366-71. View Abstract
  160. Editorial comment. Urology. 2011 Jan; 77(1):199; author reply 199. View Abstract
  161. Editorial comment. J Urol. 2011 Feb; 185(2):680-1; author reply 681. View Abstract
  162. Costs and consequences of universal sibling screening for vesicoureteral reflux: decision analysis. Pediatrics. 2010 Nov; 126(5):865-71. View Abstract
  163. Evaluation of pediatric nephrolithiasis. Indian J Urol. 2010 Oct; 26(4):531-5. View Abstract
  164. Re: Hsieh MH et al.: Outcomes and cost analysis of pyeloplasty for antenatally diagnosed ureteropelvic junction obstruction using Markov models (Urology 2008;72:794-799). Urology. 2010 Sep; 76(3):769-70; author reply 770. View Abstract
  165. Variations in timing of surgery among boys who underwent orchidopexy for cryptorchidism. Pediatrics. 2010 Sep; 126(3):e576-82. View Abstract
  166. Editorial comment. J Urol. 2010 Oct; 184(4 Suppl):1624. View Abstract
  167. Trends in imaging and surgical management of pediatric urolithiasis at American pediatric hospitals. J Urol. 2010 Oct; 184(4 Suppl):1816-22. View Abstract
  168. Epidemiological trends in pediatric urolithiasis at United States freestanding pediatric hospitals. J Urol. 2010 Sep; 184(3):1100-4. View Abstract
  169. Extracorporeal shock wave lithotripsy in the pediatric population. Urol Res. 2010 Aug; 38(4):327-31. View Abstract
  170. The concordance of testicular anatomic location in bilateral cryptorchidism. J Pediatr Urol. 2011 Feb; 7(1):52-6. View Abstract
  171. Contemporary epidemiology and characterization of newborn males with prune belly syndrome. Urology. 2010 Jul; 76(1):44-8. View Abstract
  172. Compliance with antibiotic prophylaxis in children with vesicoureteral reflux: results from a national pharmacy claims database. J Urol. 2010 May; 183(5):1994-9. View Abstract
  173. Variation among internet based calculators in predicting spontaneous resolution of vesicoureteral reflux. J Urol. 2010 Apr; 183(4):1568-72. View Abstract
  174. Variation in surgical management of vesicoureteral reflux: influence of hospital and patient factors. Pediatrics. 2010 Mar; 125(3):e446-51. View Abstract
  175. Ketorolac is underutilized after ureteral reimplantation despite reduced hospital cost and reduced length of stay. Urology. 2010 Jul; 76(1):9-13. View Abstract
  176. Parental satisfaction after open versus robot assisted laparoscopic pyeloplasty: results from modified Glasgow Children's Benefit Inventory Survey. J Urol. 2010 Feb; 183(2):704-8. View Abstract
  177. Editorial comment. J Urol. 2009 Oct; 182(4 Suppl):1743. View Abstract
  178. Ultrasound versus computerized tomography for evaluating urolithiasis. J Urol. 2009 Oct; 182(4 Suppl):1829-34. View Abstract
  179. Editorial comment. J Urol. 2009 Oct; 182(4 Suppl):1848. View Abstract
  180. Pediatric urology and the internet--does an uncommon topic decrease content quality? J Urol. 2009 Oct; 182(4):1569-74. View Abstract
  181. Nomograms for predicting annual resolution rate of primary vesicoureteral reflux: results from 2,462 children. J Urol. 2009 Oct; 182(4):1535-41. View Abstract
  182. Re: Evidence-based medicine in urology: Hope and Peril C. Niederberger J Urol 2009; 181: 1528-1529. J Urol. 2009 Sep; 182(3):1236-7; author reply 1237. View Abstract
  183. Is availability of endoscopy changing initial management of vesicoureteral reflux? J Urol. 2009 Sep; 182(3):1152-7. View Abstract
  184. Pediatric urolithiasis. Curr Opin Urol. 2009 Jul; 19(4):419-23. View Abstract
  185. RE: Predictive Factors for Contralateral Reflux in Patients With Conservatively Treated Unilateral Vesicoureteral Reflux. J Urolo. 2009; In press. View Abstract
  186. RE: INCIDENCE OF POST-PYELONEPHRITIC RENAL SCARRING: A META-ANALYSIS OF DMSA LITERATURE [Editorial Commment]. J Urol. 2009; In Press. View Abstract
  187. Re: Predictive factors for contralateral reflux in patients with conservatively treated unilateral vesicoureteral reflux: U. Barroso, Jr., V. A. Barroso,J. De Bessa, Jr., A. A. Calado and M. Zerati: Filho, J Urol 2008; 180: 297-299. J Urol. 2009 Feb; 181(2):921-2; author reply 922. View Abstract
  188. Rationale and design issues of the Randomized Intervention for Children With Vesicoureteral Reflux (RIVUR) study. Pediatrics. 2008 Dec; 122 Suppl 5:S240-50. View Abstract
  189. Extracorporeal shock wave lithotripsy in pediatric patients using a late generation portable lithotriptor: experience at Children's Hospital Boston. J Urol. 2008 Oct; 180(4 Suppl):1865-8. View Abstract
  190. Vesicoueteral Reflux. S. Altschuler et al., editors. emedicine: Textbook of Pediatrics. 2008. View Abstract
  191. RE: Incidence of Urinary tract infections in children following successful ureteral reimplantation versus endoscopic Deflux implantation. Journal of Urology. 2008; 179:2367. View Abstract
  192. Concurrent management of bilateral ureteropelvic junction obstruction in children using robotic-assisted laparoscopic surgery. Int Braz J Urol. 2008 Mar-Apr; 34(2):198-204; discussion 204-5. View Abstract
  193. The outcome of surgery versus medical management in the treatment of vesicoureteral reflux. Adv Urol. 2008; 437560. View Abstract
  194. RE: Outcomes and cost analysis of pyeloplasty for antenatally diagnosed ureteropelvic junction obstruction using markov models. Urology. 2008; in press. View Abstract
  195. Optimizing Bladder Exstrophy Outcomes: Should Regionalization of Surgery to Centers of Excellence be the Norm?. Indian Journal of Urology, Richard Grady, MD, Guest Editor. 2008; In Press. View Abstract
  196. What is the current view on circumcision?. Pediatric Views Newsletter. 2008; In Press. View Abstract
  197. Testicular Torsion. M. Cendron et al., editors. emedicine from webMD, available at http://www.emedicine.com/ped/topic 1017689.htm. 2008; in press. View Abstract
  198. Economic impact of failed or delayed primary repair of bladder exstrophy: differences in cost of hospitalization. J Urol. 2008 Feb; 179(2):680-3. View Abstract
  199. Reoperative Osteotomy in Exstrophy Surgery. Dialogues in Pediatric Urology, John P. Gearhart, MD, Guest Editor. 2007; 29(2):6. View Abstract
  200. Dextranomer/hyaluronic acid copolymer (Deflux) implants mimicking distal ureteral calculi on CT. Pediatr Radiol. 2008 Jan; 38(1):104-6. View Abstract
  201. Extracorporeal Shock Wave Lithotripsy in Pediatric Patients Using a Late-Generation Lithotriptor: Experience at Children’s Hospital Boston. Annual Meeting of the American Academy of Pediatrics, Urology Section, San Francisco, CA. 2007. View Abstract
  202. Incontinence Symptom Index - Pediatric: Development and Initial Validation of a Urinary Incontinence Instrument for the Older Pediatric Population. Journal of Urology. 2007; 178(4):1763-7. View Abstract
  203. Patient-reported sexual and reproductive function among adults born with classic bladder exstrophy. Annual Meeting of the Section on Urology of the American Academy of Pediatrics, San Francisco, CA. 2007. View Abstract
  204. Extracorporeal Shock Wave Lithotripsy in Pediatric Patients Using a Late-Generation Lithotriptor: Experience at Children’s Hospital Boston. World Congress of Endourology, Cancun, Mexico. 2007. View Abstract
  205. Incontinence Symptom Index-Pediatric: development and initial validation of a urinary incontinence instrument for the older pediatric population. J Urol. 2007 Oct; 178(4 Pt 2):1763-7; discussion 1767. View Abstract
  206. Evidence of variation by race in the timing of surgery for correction of pediatric ureteropelvic junction obstruction. J Urol. 2007 Oct; 178(4 Pt 1):1463-8; discussion 1468. View Abstract
  207. Results of bladder neck reconstruction after newborn complete primary repair of exstrophy. J Urol. 2007 Oct; 178(4 Pt 2):1619-22; discussion 1622. View Abstract
  208. Patient-reported urinary function and incontinence among adults born with classic bladder exstrophy. AUA Annual Meeting, Anaheim, CA. 2007. View Abstract
  209. Economic impact of failed or delayed primary repair of bladder exstrophy: differences in cost of hospitalization. Annual Meeting of the American Urological Association, Anaheim, CA. 2007. View Abstract
  210. Economic impact of failed or delayed primary repair of bladder exstrophy: differences in the cost of hospitalization. Journal of Urology. 2007; 179(2):680-683. View Abstract
  211. Vesicoureteral Reflux: the RIVUR Study and the Way Forward. J Urol. 2007; 179(2):405--407. View Abstract
  212. Modern staged repair of bladder exstrophy: a contemporary series. J Pediatr Urol. 2007 Aug; 3(4):311-5. View Abstract
  213. Incontinence Symptom Index - Pediatric (ISI-P): Development and Initial Validation of a Urinary Incontinence Instrument for the Pediatric Population. Annual Meeting of the Section on Urology of the American Academy of Pediatrics. 2006. View Abstract
  214. Bladder neck reconstruction after newborn complete primary repair of exstrophy. Annual Meeting of the Section on Urology of the American Academy of Pediatrics. 2006. View Abstract
  215. RE: The incidence of testicular germ cell tumors in U.S. children: the SEER program experience 1973-2000. Urology. 2006; 68(2):405. View Abstract
  216. Re: prenatal ultrasound has led to earlier detection and repair of ureteropelvic junction obstruction. J Urol. 2006 Aug; 176(2):840; author reply 840. View Abstract
  217. RE: Randomized controlled trials in pediatric urology: room for improvement. Journal of Urology. 2006; 176(1):309-310. View Abstract
  218. Vesicoureteral Reflux. S. Altschuler et al., editors. emedicine: Textbook of Pediatrics. 2006. View Abstract
  219. Repeat pelvic osteotomy in patients with failed closure of bladder exstrophy: applications and outcomes. J Pediatr Surg. 2006 Jun; 41(6):1109-12. View Abstract
  220. Ureteroscopy for symptomatic hydrocalices: a case series. J Endourol. 2006 Jun; 20(6):413-7. View Abstract
  221. Retrograde ureteroscopy in patients with orthotopic ileal neobladder urinary diversion: an update. AUA Annual Meeting. 2006. View Abstract
  222. Ureteroscopy for symptomatic hydrocalices: a case series. AUA Annual Meeting. 2006. View Abstract
  223. Evidence of racial variation in the timing of surgery for correction of ureteropelvic junction obstruction. AUA Annual Meeting. 2006. View Abstract
  224. Thirty year follow-up of a cohort of patients with classic bladder exstrophy: the Johns Hopkins Experience. AUA Annual Meeting. 2006. View Abstract
  225. Recent advances in contemporary management of the bladder exstrophy-epispadias complex. Progress in Paediatric Urology. 2006; 8:1-11. View Abstract
  226. Obstructing Congenital Anomalies of the Urinary Tract: Ureteropelvic Junction Obstruction, Ureterocele, Megaureter, and Posterior Urethral Valves. JK Parsons and EJ Wright, editors. Brady Urology Manual. 2006. View Abstract
  227. Patient-reported sexual function after oral mucosa graft urethroplasty for hypospadias. Urology. 2005 Nov; 66(5):1086-9; discussion 1089-90. View Abstract
  228. The increasing incidence of congenital penile anomalies in the United States. J Urol. 2005 Oct; 174(4 Pt 2):1573-6. View Abstract
  229. Long-term patient reported outcome and satisfaction after oral mucosa graft urethroplasty for hypospadias. J Urol. 2005 Sep; 174(3):1075-8. View Abstract
  230. Surgical repair of bladder exstrophy in the modern era: contemporary practice patterns and the role of hospital case volume. J Urol. 2005 Sep; 174(3):1099-102. View Abstract
  231. Re: Continence and classic bladder exstrophy treated with staged repair. J Urol. 2005 Sep; 174(3):1153; author reply 1153-4. View Abstract
  232. Bladder exstrophy in the newborn: a snapshot of contemporary practice patterns. Urology. 2005 Aug; 66(2):411-5. View Abstract
  233. Tissue expansion in management of failed phallic reconstruction: initial report of clinical series. Urology. 2005 Jul; 66(1):180-4. View Abstract
  234. Repeat pelvic osteotomy in patients with prior failed closure of bladder exstrophy: applications and outcomes. AAP Section of Urology-ESPU Joint Meeting. 2005. View Abstract
  235. Contemporary practice patterns in management of bladder exstrophy in newborns. AUA Annual Meeting. 2005. View Abstract
  236. Tissue Expansion in the Management of Failed Phallic Reconstruction. AUA Annual Meeting. 2005. View Abstract
  237. Patient-reported sexual function after oral mucosa graft urethroplasty for hypospadias. AUA Annual Meeting. 2005. View Abstract
  238. Contemporary epidemiology of bladder exstrophy in the United States. J Urol. 2005 May; 173(5):1728-31. View Abstract
  239. Subspecialty training and surgical outcomes in children with failed bladder exstrophy closure. J Pediatr Urol. 2005 Apr; 1(2):95-9. View Abstract
  240. The increasing incidence of newborn circumcision: data from the nationwide inpatient sample. J Urol. 2005 Mar; 173(3):978-81. View Abstract
  241. Contemporary trends in surgical correction of pediatric ureteropelvic junction obstruction: data from the nationwide inpatient sample. J Urol. 2005 Jan; 173(1):232-6. View Abstract
  242. Current views on evaluation, management, and gender assignment of the intersex infant. Nat Clin Pract Urol. 2004 Nov; 1(1):38-43. View Abstract
  243. Current views on the evaluation, management, and gender assignment of the intersex infant. Nature - Clinical Practice Urology. 2004; 1(1):38-43. View Abstract
  244. Is the incidence of congenital penile anomalies increasing?. Annual Meeting of the Section on Urology of the American Academy of Pediatrics. 2004. View Abstract
  245. Hypospadias. D.L. Brown and G.H. Borschel, editors. Michigan Manual of Plastic Surgery. 2004. View Abstract
  246. Extraordinary scrotal lymphedema after weight loss: resection and reconstruction of the giant end-stage scrotum. Urology. 2004 Jun; 63(6):1180-1. View Abstract
  247. Buccal mucosa graft urethroplasty: a decade of lip service at the University of Michigan. AUA Annual Meeting. 2004. View Abstract
  248. Contemporary trends in pediatric pyeloplasty: data from the Nationwide Inpatient Sample. AUA Annual Meeting. 2004. View Abstract
  249. The rising rate of newborn circumcision. AUA Annual Meeting. 2004. View Abstract
  250. Re: comparative assessment of maximal bladder capacity, 0.9% NaCl versus 0.2 M KCl, for the diagnosis of interstitial cystitis: a prospective controlled study. J Urol. 2004 Apr; 171(4):1635; author reply 1636-7. View Abstract
  251. The giant end-stage scrotum: resection and reconstruction. Annual Meeting of the North Central Section of the AUA. 2003. View Abstract
  252. The cremasteric reflex: a useful but imperfect sign in testicular torsion. J Pediatr Surg. 2003 Aug; 38(8):1248-9. View Abstract
  253. Retrograde ureteroscopy in patients with orthotopic ileal neobladder urinary diversion. J Urol. 2003 Jul; 170(1):107-10. View Abstract
  254. Intraoperative nerve stimulation with measurement of urethral sphincter pressure changes during radical retropubic prostatectomy: a feasibility study. J Urol. 2003 Jun; 169(6):2225-8. View Abstract
  255. Contemporary preoperative parameters predict cancer-free survival after radical prostatectomy: a tool to facilitate treatment decisions. Urol Oncol. 2003 May-Jun; 21(3):213-8. View Abstract
  256. Contemporary diagnosis and management of renal angiomyolipoma. J Urol. 2002 Oct; 168(4 Pt 1):1315-25. View Abstract
  257. EUTUBS: a mnemonic for the complete endoscopic examination of the lower urinary tract. West Afr J Med. 2002 Oct-Dec; 21(4):294-6. View Abstract
  258. Restoration of external sphincter stability using collagen: a novel treatment for giggle incontinence. American Academy of Pediatrics - Section on Urology Annual Meeting. 2002. View Abstract
  259. Ureteroscopic management of hydrocalyx. Annual Meeting of the North Central Section of the AUA. 2002. View Abstract
  260. Retrograde ureteroscopy in patients with orthotopic ileal neobladder urinary diversion. Annual Meeting of the North Central Section of the AUA. 2002. View Abstract
  261. Functional intrapelvic neuroanatomy of the male urethral sphincter assessed by intraoperative nerve stimulation. AUA Annual Meeting. 2002. View Abstract
  262. Use of baseline clinical parameters to distinguish indolent prostate cancers suitable for observation from cancers warranting primary intervention. AUA Annual Meeting. 2002. View Abstract
  263. Contemporary pre-operative predictors of clinical recurrence and survival after radical prostatectomy in the PSA era. AUA Annual Meeting. 2002. View Abstract
  264. Comparison of hand assisted versus standard laparoscopic radical nephrectomy for suspected renal cell carcinoma. J Urol. 2002 May; 167(5):1989-94. View Abstract
  265. Preoperative parameters for predicting early prostate cancer recurrence after radical prostatectomy. Urology. 2002 May; 59(5):740-5; discussion 745-6. View Abstract
  266. Sales and science: changing patterns of pharmaceutical and medical device advertising in peer reviewed urology publications, 1975-2000. J Urol. 2001 Dec; 166(6):2317-20. View Abstract
  267. Preneoplastic prostate lesions: an opportunity for prostate cancer prevention. Ann N Y Acad Sci. 2001 Dec; 952:135-44. View Abstract
  268. GSTA1 expression in normal, preneoplastic, and neoplastic human prostate tissue. Prostate. 2001 Sep 15; 49(1):30-7. View Abstract
  269. Comparison of shockwave lithotripsy outcomes in patients receiving sufentanil or lidocaine spinal anesthesia. J Endourol. 2001 Jun; 15(5):473-7. View Abstract
  270. Prediction of spontaneous passage of ureteral calculi using size criteria: z-axis measurements are from reformatted CT images are more accurate than standard axial measurements. AUA Annual Meeting. 2001. View Abstract
  271. Comparison of hand-assisted versus standard laparoscopic radical nephrectomy for suspected renal cell carcinoma. AUA Annual Meeting. 2001. View Abstract
  272. Changing patterns in pharmaceutical and medical device advertising in peer-reviewed urology journals: 1975-2000. AUA Annual Meeting. 2001. View Abstract
  273. Protection against 2-hydroxyamino-1-methyl-6-phenylimidazo[4,5-b]pyridine cytotoxicity and DNA adduct formation in human prostate by glutathione S-transferase P1. Cancer Res. 2001 Jan 01; 61(1):103-9. View Abstract
  274. Favorable clinical progression-free survival after radical prostatectomy based on pre-operative parameters: a framework for counselling patients. American Urological Association Annual Meeting. 2000. View Abstract
  275. Vesicoureteral Reflux. S. Altschuler et al, editors. emedicine Textbook of Pediatrics. 2000. View Abstract
  276. Xenografts of islets of Langerhans in the vitreous cavity. Association for Research in Vision and Ophthalmology Annual Meeting. 1996. View Abstract
  277. ELISA of IgG antibody to oxidized low-density lipoprotein: effects of blocking buffer and method of data expression. Clin Chem. 1994 Jun; 40(6):882-8. View Abstract

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