EDUCATION

Undergraduate Degree

  • University of California, Irvine , 2003 , Irvine , CA

Medical School

  • University of California, San Francisco , 1998 , San Francisco , CA

Internship

General Surgery
  • Stanford University , 1999 , Palo Alto , CA

Residency

General Surgery
  • Stanford University Hospital and Clinics , 2006 , Palo Alto , CA

Fellowship

Pediatric Surgery
  • Cincinnati Children's Hospital , 2008 , Cincinnati , OH

Fellowship

Research
  • Stanford University Department of Health, Research & Policy , 2002 , Palo Alto , CA

CERTIFICATIONS

  • American Board of Surgery, General Surgery
  • American Board of Surgery, Pediatric Surgery

PUBLICATIONS

Publications powered by Harvard Catalyst Profiles

  1. Advances in the Diagnosis and Management of Appendicitis in Children. Adv Surg. 2021 09; 55:9-33. View abstract
  2. Does age affect the test performance of secondary sonographic findings for pediatric appendicitis? Pediatr Radiol. 2021 May 27. View abstract
  3. Safety Events in Children's Hospitals During the COVID-19 Pandemic. Hosp Pediatr. 2021 06; 11(6):e95-e100. View abstract
  4. Influence of Oral Antibiotics Following Discharge on Organ Space Infections in Children With Complicated Appendicitis. Ann Surg. 2021 04 01; 273(4):821-825. View abstract
  5. A cluster randomized stepped-wedge trial to de-implement unnecessary post-operative antibiotics in children: the optimizing perioperative antibiotic in children (OPerAtiC) trial. Implement Sci. 2021 03 19; 16(1):29. View abstract
  6. Variability, outcomes and cost associated with the use of parenteral nutrition in children with complicated appendicitis: A hospital-level propensity matched analysis. J Pediatr Surg. 2021 Mar 11. View abstract
  7. Reply by Authors. J Urol. 2021 04; 205(4):1198. View abstract
  8. Antireflux Surgery at National Surgical Quality Improvement Program-Pediatric Hospitals. J Urol. 2021 04; 205(4):1189-1198. View abstract
  9. Leveraging the Combined Predictive Value of Ultrasound and Laboratory Data to Reduce Radiation Exposure and Resource Utilization in Children with Suspected Appendicitis. J Surg Res. 2021 01; 257:529-536. View abstract
  10. Optimizing Duration of Empiric Management of Suspected Central Line-Associated Bloodstream Infections in Pediatric Patients with Intestinal Failure. J Pediatr. 2020 12; 227:69-76.e3. View abstract
  11. Utilization and Performance Benchmarking for Postoperative Imaging in Children With Complicated Appendicitis: Results From a Multicenter Collaborative Cohort Study. Ann Surg. 2020 Jul 09. View abstract
  12. Development and Implications of an Evidence-based and Public Health-relevant Definition of Complicated Appendicitis in Children. Ann Surg. 2020 05; 271(5):962-968. View abstract
  13. Ceftriaxone Combined With Metronidazole is Superior to Cefoxitin Alone in the Management of Uncomplicated Appendicitis in Children: Results from a Multicenter Collaborative Comparative Effectiveness Study. Ann Surg. 2020 Mar 05. View abstract
  14. Influence of symptom duration and WBC profile on the negative predictive value of a nondiagnostic ultrasound in children with suspected appendicitis. J Pediatr Surg. 2020 Jun; 55(6):1032-1036. View abstract
  15. Contemporary practice and perceptions surrounding the management of asymptomatic umbilical hernias in children: A survey of the American Pediatric Surgical Association. J Pediatr Surg. 2020 Oct; 55(10):2052-2057. View abstract
  16. Leveraging the Incidence, Burden, and Fiscal Implications of Unplanned Hospital Revisits for the Prioritization of Prevention Efforts in Pediatric Surgery. Ann Surg. 2020 01; 271(1):191-199. View abstract
  17. Need for Consensus Guidelines in Pediatric Umbilical Hernia Repair. JAMA Pediatr. 2019 Nov 01; 173(11):1110. View abstract
  18. Implementation of a Plan-Do-Study-Act framework to reduce unindicated surgical antimicrobial prophylaxis. J Pediatr Surg. 2020 Jan; 55(1):86-89. View abstract
  19. Trends in the use of surgical antibiotic prophylaxis in general pediatric surgery: Are we missing the mark for both stewardship and infection prevention? J Pediatr Surg. 2020 Jan; 55(1):75-79. View abstract
  20. Development and Implementation of a Surgical Quality Improvement Pathway for Pediatric Intussusception Patients. Pediatr Qual Saf. 2019 Sep-Oct; 4(5):e205. View abstract
  21. Association of Sociodemographic Factors With Adherence to Age-Specific Guidelines for Asymptomatic Umbilical Hernia Repair in Children. JAMA Pediatr. 2019 07 01; 173(7):640-647. View abstract
  22. Variation in surgical management of asymptomatic umbilical hernia at freestanding children's hospitals. J Pediatr Surg. 2020 Jul; 55(7):1324-1329. View abstract
  23. Predicting Postoperative Physiologic Decline After Surgery. Pediatrics. 2019 04; 143(4). View abstract
  24. Preventing patient harm via adverse event review: An APSA survey regarding the role of morbidity and mortality (M&M) conference. J Pediatr Surg. 2019 Sep; 54(9):1872-1877. View abstract
  25. Patient- and Nurse-Controlled Analgesia: 22-Year Experience in a Pediatric Hospital. Hosp Pediatr. 2019 02; 9(2):129-133. View abstract
  26. Pediatric Surgeon Perceptions of Participation in External Patient Safety Programs: impact on Patient Safety. Pediatr Qual Saf. 2018 Nov-Dec; 3(6):e124. View abstract
  27. Association of Intraoperative Findings With Outcomes and Resource Use in Children With Complicated Appendicitis. JAMA Surg. 2018 11 01; 153(11):1021-1027. View abstract
  28. Surgical Safety Checklists in Children's Surgery: Surgeons' Attitudes and Review of the Literature. Pediatr Qual Saf. 2018 Sep-Oct; 3(5):e108. View abstract
  29. New anthropometric classification scheme of preoperative nutritional status in children: a retrospective observational cohort study. BMJ Paediatr Open. 2018; 2(1):e000303. View abstract
  30. Overlapping Surgery in Pediatric Surgical Care: Is It a Safe and Cost-effective Practice? Ann Surg. 2018 08; 268(2):e28. View abstract
  31. Extended Versus Narrow-spectrum Antibiotics in the Management of Uncomplicated Appendicitis in Children: A Propensity-matched Comparative Effectiveness Study. Ann Surg. 2018 07; 268(1):186-192. View abstract
  32. Time to Appendectomy and Risk of Complicated Appendicitis and Adverse Outcomes in Children-Reply. JAMA Pediatr. 2018 01 01; 172(1):94-95. View abstract
  33. Time to appendectomy for acute appendicitis: A systematic review. J Pediatr Surg. 2018 Mar; 53(3):396-405. View abstract
  34. Influence of Time to Appendectomy and Operative Duration on Hospital Cost in Children with Uncomplicated Appendicitis. J Am Coll Surg. 2018 06; 226(6):1014-1021. View abstract
  35. Safety culture among pediatric surgeons: A national survey of attitudes and perceptions of patient safety. J Pediatr Surg. 2018 Mar; 53(3):381-395. View abstract
  36. Case Volume and Revisits in Children Undergoing Gastrostomy Tube Placement. J Pediatr Gastroenterol Nutr. 2017 08; 65(2):232-236. View abstract
  37. Intravenous Versus Oral Antibiotics for the Prevention of Treatment Failure in Children With Complicated Appendicitis: Has the Abandonment of Peripherally Inserted Catheters Been Justified? Ann Surg. 2017 08; 266(2):361-368. View abstract
  38. Time to Appendectomy and Risk of Complicated Appendicitis and Adverse Outcomes in Children. JAMA Pediatr. 2017 08 01; 171(8):740-746. View abstract
  39. The Threat of Diagnostic Uncertainty in the Medical Management of Uncomplicated Appendicitis. JAMA Pediatr. 2017 06 01; 171(6):505-506. View abstract
  40. Do all-cause revisit rates reflect the quality of pediatric surgical care provided during index encounters? J Pediatr Surg. 2017 Jun; 52(6):1050-1055. View abstract
  41. Pediatric Gastrostomy Tube Placement: Lessons Learned from High-performing Institutions through Structured Interviews. Pediatr Qual Saf. 2017 Mar-Apr; 2(2):e016. View abstract
  42. Quantifying the Burden of Interhospital Cost Variation in Pediatric Surgery: Implications for the Prioritization of Comparative Effectiveness Research. JAMA Pediatr. 2017 02 06; 171(2):e163926. View abstract
  43. Moving the needle toward high-quality pediatric surgical care: How can we achieve this goal through prioritization, measurement and more effective collaboration? J Pediatr Surg. 2017 May; 52(5):669-676. View abstract
  44. Autoamputation of the Appendix Presenting as a Calcified Abdominal Mass Following Necrotizing Enterocolitis. Pediatr Dev Pathol. 2017 Jul-Aug; 20(4):335-339. View abstract
  45. Intravenous Versus Oral Antibiotics for Postdischarge Treatment of Complicated Pneumonia. Pediatrics. 2016 12; 138(6). View abstract
  46. Variation in resource utilization in liver transplantation at freestanding children's hospitals. Pediatr Transplant. 2016 Nov; 20(7):921-925. View abstract
  47. Surgical management of gastroesophageal reflux disease (GERD) in children: A systematic review. J Pediatr Surg. 2017 Aug; 52(8):1228-1238. View abstract
  48. Development and Evaluation of the American College of Surgeons NSQIP Pediatric Surgical Risk Calculator. J Am Coll Surg. 2016 11; 223(5):685-693. View abstract
  49. Beyond perforation: Influence of peritoneal contamination on clinical severity and resource utilization in children with perforated appendicitis. J Pediatr Surg. 2016 Nov; 51(11):1896-1899. View abstract
  50. Delaying Appendectomy Does Not Lead to Higher Rates of Surgical Site Infections: A Multi-institutional Analysis of Children With Appendicitis. Ann Surg. 2016 07; 264(1):164-8. View abstract
  51. Extended- Versus Narrower-Spectrum Antibiotics for Appendicitis. Pediatrics. 2016 07; 138(1). View abstract
  52. Quality improvement in pediatric surgery. Curr Opin Pediatr. 2016 06; 28(3):348-55. View abstract
  53. Regionalization of Pediatric Surgery: Trends Already Underway. Ann Surg. 2016 06; 263(6):1062-6. View abstract
  54. National Variability and Appropriateness of Surgical Antibiotic Prophylaxis in US Children's Hospitals. JAMA Pediatr. 2016 06 01; 170(6):570-6. View abstract
  55. Overview and diagnosis of acute appendicitis in children. Semin Pediatr Surg. 2016 Aug; 25(4):198-203. View abstract
  56. Emergency Department Visits and Readmissions among Children after Gastrostomy Tube Placement. J Pediatr. 2016 07; 174:139-145.e2. View abstract
  57. Autoamputation of the appendix presenting as a calcified abdominal mass following necrotizing enterocolitis. Pediatr Dev Pathol. 2016 Mar 28. View abstract
  58. Rates and burden of surgical site infections associated with pediatric colorectal surgery: insight from the National Surgery Quality Improvement Program. J Pediatr Surg. 2016 Jun; 51(6):970-4. View abstract
  59. Diagnostic imaging practices for children with suspected appendicitis evaluated at definitive care hospitals and their associated referral centers. J Pediatr Surg. 2016 Jun; 51(6):912-6. View abstract
  60. Focusing Quality Improvement Initiatives in Pediatric Plastic Surgery: A Descriptive Study Using the Pediatric National Surgical Quality Improvement Program. J Craniofac Surg. 2016 Mar; 27(2):277-81. View abstract
  61. Operating Room Clinicians' Attitudes and Perceptions of a Pediatric Surgical Safety Checklist at 1 Institution. J Patient Saf. 2016 Mar; 12(1):44-50. View abstract
  62. Variation in pediatric surgical care. Semin Pediatr Surg. 2015 Dec; 24(6):291-4. View abstract
  63. Improving Quality and Efficiency for Intussusception Management After Successful Enema Reduction. Pediatrics. 2015 Nov; 136(5):e1345-52. View abstract
  64. Effect of Reduction in the Use of Computed Tomography on Clinical Outcomes of Appendicitis. JAMA Pediatr. 2015 Aug; 169(8):755-60. View abstract
  65. Contemporary practice among pediatric surgeons in the use of bowel preparation for elective colorectal surgery: A survey of the American Pediatric Surgical Association. J Pediatr Surg. 2015 Oct; 50(10):1636-40. View abstract
  66. Influence of hospital and patient location on early postoperative outcomes after appendectomy and pyloromyotomy. J Pediatr Surg. 2015 Sep; 50(9):1549-55. View abstract
  67. Identifying Antimicrobial Stewardship Targets for Pediatric Surgical Patients. J Pediatric Infect Dis Soc. 2015 Dec; 4(4):e100-8. View abstract
  68. Variation in bowel preparation among pediatric surgeons for elective colorectal surgery: A problem of equipoise or a knowledge gap of the available clinical evidence? J Pediatr Surg. 2015 Jun; 50(6):967-71. View abstract
  69. Pediatric CT dose reduction for suspected appendicitis: a practice quality improvement project using artificial gaussian noise--part 2, clinical outcomes. AJR Am J Roentgenol. 2015 Mar; 204(3):636-44. View abstract
  70. Integration of ultrasound findings and a clinical score in the diagnostic evaluation of pediatric appendicitis. J Pediatr. 2015 May; 166(5):1134-9. View abstract
  71. Comparative effectiveness of intravenous vs oral antibiotics for postdischarge treatment of acute osteomyelitis in children. JAMA Pediatr. 2015 Feb; 169(2):120-8. View abstract
  72. Use of White Blood Cell Count and Polymorphonuclear Leukocyte Differential to Improve the Predictive Value of Ultrasound for Suspected Appendicitis in Children. J Am Coll Surg. 2015 Jun; 220(6):1010-7. View abstract
  73. Does timing of neonatal inguinal hernia repair affect outcomes? J Pediatr Surg. 2015 Jan; 50(1):171-6. View abstract
  74. Passing the baton: The pediatric surgical perspective on transition. J Pediatr Surg. 2015 Jul; 50(7):1196-200. View abstract
  75. Prevention of infectious complications after elective colorectal surgery in children: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee comprehensive review. J Pediatr Surg. 2015 Jan; 50(1):192-200. View abstract
  76. Identification of opportunities for quality improvement and outcome measurement in pediatric otolaryngology. JAMA Otolaryngol Head Neck Surg. 2014 Nov; 140(11):1019-26. View abstract
  77. Early versus delayed surgical correction of malrotation in children with critical congenital heart disease. J Pediatr Surg. 2015 Jan; 50(1):86-91. View abstract
  78. Reducing mortality and infections after congenital heart surgery in the developing world. Pediatrics. 2014 Nov; 134(5):e1422-30. View abstract
  79. Variation in practice and resource utilization associated with the diagnosis and management of appendicitis at freestanding children's hospitals: implications for value-based comparative analysis. Ann Surg. 2014 Jun; 259(6):1228-34. View abstract
  80. Use of mechanical bowel preparation and oral antibiotics for elective colorectal procedures in children: is current practice evidence-based? J Pediatr Surg. 2014 Jun; 49(6):1030-5; discussion 1035. View abstract
  81. Morbidity of peripherally inserted central catheters in pediatric complicated appendicitis. J Surg Res. 2014 Jul; 190(1):235-41. View abstract
  82. Optimizing resources for the surgical care of children: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee consensus statement. J Pediatr Surg. 2014 May; 49(5):818-22. View abstract
  83. Assessing quality in pediatric surgery--the limited role of appendectomy as the optimal target. J Pediatr Surg. 2013 Nov; 48(11):2313-9. View abstract
  84. Enhancing NSQIP-Pediatric through integration with the Pediatric Health Information System. J Pediatr Surg. 2014 Jan; 49(1):207-12; discussion 212. View abstract
  85. To fundo or not to fundo? JAMA Pediatr. 2013 Oct; 167(10):896-7. View abstract
  86. Pediatric emergency and essential surgical care in Zambian hospitals: a nationwide study. J Pediatr Surg. 2013 Jun; 48(6):1363-70. View abstract
  87. Relationship between unplanned readmission and total treatment-related hospital days following management of complicated appendicitis at 31 children's hospitals. J Pediatr Surg. 2013 Jun; 48(6):1389-94. View abstract
  88. Variation in risk-adjusted hospital readmission after treatment of appendicitis at 38 children's hospitals: an opportunity for collaborative quality improvement. Ann Surg. 2013 Apr; 257(4):758-65. View abstract
  89. A novel multispecialty surgical risk score for children. Pediatrics. 2013 Mar; 131(3):e829-36. View abstract
  90. Variation in practice patterns and resource utilization surrounding management of intussusception at freestanding Children's Hospitals. J Pediatr Surg. 2013 Jan; 48(1):104-10. View abstract
  91. The diagnosis and management of empyema in children: a comprehensive review from the APSA Outcomes and Clinical Trials Committee. J Pediatr Surg. 2012 Nov; 47(11):2101-10. View abstract
  92. Hospital readmission after management of appendicitis at freestanding children's hospitals: contemporary trends and financial implications. J Pediatr Surg. 2012 Jun; 47(6):1170-6. View abstract
  93. Factors associated with imaging modality choice in children with appendicitis. J Surg Res. 2012 Sep; 177(1):131-6. View abstract
  94. Parenteral nutrition-associated cholestasis: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee systematic review. J Pediatr Surg. 2012 Jan; 47(1):225-40. View abstract
  95. The appendix as a conduit for antegrade continence enemas in patients with anorectal malformations: lessons learned from 163 cases treated over 18 years. J Pediatr Surg. 2011 Jun; 46(6):1236-42. View abstract
  96. Laparoscopic-assisted Malone appendicostomy in the management of fecal incontinence in children. J Laparoendosc Adv Surg Tech A. 2011 Jun; 21(5):455-9. View abstract
  97. Recent trends in the use of antibiotic prophylaxis in pediatric surgery. J Pediatr Surg. 2011 Feb; 46(2):366-71. View abstract
  98. Results of a longitudinal study of rigorous manuscript submission guidelines designed to improve the quality of clinical research reporting in a peer-reviewed surgical journal. J Pediatr Surg. 2011 Jan; 46(1):131-7. View abstract
  99. Implementing a pediatric surgical safety checklist in the OR and beyond. AORN J. 2010 Jul; 92(1):61-71. View abstract
  100. Analysis of adverse events in pediatric surgery using criteria validated from the adult population: justifying the need for pediatric-focused outcome measures. J Pediatr Surg. 2010 Jun; 45(6):1126-36. View abstract
  101. Advances in pediatric colorectal surgical techniques. Semin Pediatr Surg. 2010 May; 19(2):86-95. View abstract
  102. Alarming trends in the improper use of motor vehicle restraints in children: implications for public policy and the development of race-based strategies for improving compliance. J Pediatr Surg. 2008 Jan; 43(1):200-7. View abstract
  103. Outcomes after laparoscopic surgery in neonates with hypoplastic heart left heart syndrome. J Pediatr Surg. 2007 Jun; 42(6):1118-21. View abstract
  104. Implications of the high voltage induced variation on TL readings. Radiat Prot Dosimetry. 2006; 120(1-4):293-7. View abstract
  105. Recent trends in the funding and utilization of NIH career development awards by surgical faculty. Surgery. 2004 Aug; 136(2):232-9. View abstract
  106. Critical analysis of clinical research reporting in pediatric surgery: justifying the need for a new standard. J Pediatr Surg. 2003 Dec; 38(12):1739-43. View abstract
  107. Small evidence for small incisions: pediatric laparoscopy and the need for more rigorous evaluation of novel surgical therapies. J Pediatr Surg. 2003 Oct; 38(10):1429-33. View abstract
  108. Primary reversed gastric tube reconstruction in long gap esophageal atresia. J Pediatr Surg. 2003 Jun; 38(6):957-62. View abstract
  109. Development of a quality assessment scale for retrospective clinical studies in pediatric surgery. J Pediatr Surg. 2003 Mar; 38(3):390-6; discussion 390-6. View abstract
  110. Recent trends in National Institutes of Health funding of surgical research. Ann Surg. 2002 Sep; 236(3):277-86; discussion 286-7. View abstract
  111. The need for critical analysis of case-series reporting in pediatric surgery. Semin Pediatr Surg. 2002 Aug; 11(3):184-9. View abstract
  112. Development of an internet-based protocol to facilitate randomized clinical trials in pediatric surgery. J Pediatr Surg. 2002 Jul; 37(7):990-4; discussion 990-4. View abstract
  113. The role of prospective randomized clinical trials in pediatric surgery: state of the art? J Pediatr Surg. 2001 Aug; 36(8):1182-6. View abstract
  114. Laparoscopic repair of paraesophageal hiatal hernias. J Am Coll Surg. 1998 Apr; 186(4):428-32; discussion 432-3. View abstract