Pediatric Surgery


Tim Jancelewicz, M.D., M.A.

Dr. Jancelewicz

Dr. Jancelewicz’s formal education began at the University of Toronto where he obtained both his BS and MA degrees. After earning his medical degree from Columbia University College of Physicians & Surgeons in New York, he moved on to the University of California, San Francisco, where he completed both his surgical residency as well as a postdoctoral research fellowship. From there he went back to Toronto and completed a fellowship in pediatric surgery at The Hospital for Sick Children.

In 2013, Dr. Jancelewicz joined the Division of Pediatric Surgery at the University Of Tennessee Health Science Center and Le Bonheur Children’s Hospital. Assistant Professor of Surgery and Pediatrics. Dr Jancelewicz is a member of the American Pediatric Surgical Association, the American College of Surgeons, and the Howard C. Naffziger Surgical Society.

Research and Clinical Interests

  • Congenital Diaphragmatic Hernia
  • Neonatal Surgery
  • Minimally invasive surgery
  • Congenital pulmonary and thoracic disorders

University and Hospital Appointments

  • Assistant Professor of Surgery and Pediatrics

Medical School

  • Columbia University College of Physicians & Surgeons, New York

Post Graduate Training

  • Fellowship, Pediatric Surgery: The Hospital for Sick Children, Toronto
  • Postdoctoral Research Fellow: University of California, San Francisco
  • Resident, General Surgery: University of California, San Francisco

Various Publications

  • Renaud EJ, Sømme S, Islam S, Cameron DB, Gates RL, Williams RF, Jancelewicz T, Oyetunji TA, Grabowski J, Diefenbach KA, Baird R, Arnold MA, Lal DR, Shelton J, Guner YS, Gosain A, Kawaguchi AL, Ricca RL, Goldin AB, Dasgupta R. Ovarian masses in the child and adolescent: An American Pediatric Surgical Association Outcomes and Evidence-Based Practice Committee systematic review. J Pediatr Surg. 2018 Sep 6. pii: S0022-3468(18)30566-9. doi: 10.1016/j.jpedsurg.2018.08.058. [Epub ahead of print] Review. PubMed PMID: 30220452.
  • Thomas AK, Teague CT, Jancelewicz T. Canal of Nuck hernia containing pelvic structures presenting as a labial mass. Radiol Case Rep. 2018 Mar 6;13(3):534-536. doi: 10.1016/j.radcr.2018.02.007. eCollection 2018 Jun. PubMed PMID: 29849852; PubMed Central PMCID: PMC5966625.
  • Jancelewicz T, Brindle ME, Harting MT, Tolley EA, Langham MR Jr, Lally PA, Gosain A, Storgion SA, Kays DW; Congenital Diaphragmatic Hernia Study Group. Extracorporeal Membrane Oxygenation (ECMO) Risk Stratification in Newborns with Congenital Diaphragmatic Hernia (CDH). J Pediatr Surg. 2018 Oct;53(10):1890-1895. doi: 10.1016/j.jpedsurg.2018.04.014. Epub 2018 Apr 14. PubMed PMID: 29754878.
  • Hall NJ, Eaton S, Abbo O, Arnaud AP, Beaudin M, Brindle M, Bütter A, Davies D, Jancelewicz T, Johnson K, Keijzer R, Lapidus-Krol E, Offringa M, Piché N, Rintala R, Skarsgard E, Svensson JF, Ungar WJ, Wester T, Willan AR, Zani A, St Peter SD, Pierro A. Appendectomy versus non-operative treatment for acute uncomplicated appendicitis in children: study protocol for a multicentre, open-label, non-inferiority, randomised controlled trial. BMJ Paediatr Open. 2017 May 18;1(1). pii: bmjpo-2017-000028. doi: 10.1136/bmjpo-2017-000028. eCollection 2017. PubMed PMID: 29637088; PubMed Central PMCID: PMC5843002.
  • Jelin EB, O'Hare EM, Jancelewicz T, Nasr I, Boss E, Rhee DS. Optimal timing for elective resection of asymptomatic congenital pulmonary airway malformations. J Pediatr Surg. 2018 May;53(5):1001-1005. doi: 10.1016/j.jpedsurg.2018.02.032. Epub 2018 Feb 10. PubMed PMID: 29514740.
  • Balduf K, Kumar TKS, Boston U, Sathanandam S, Lee MV, Jancelewicz T, Knott-Craig CJ. Improved Outcomes in Management of Hypoplastic Left Heart Syndrome Associated With Congenital Diaphragmatic Hernia: an Algorithmic Approach. Semin Thorac Cardiovasc Surg. 2018 Summer;30(2):191-196. doi: 10.1053/j.semtcvs.2018.02.010. Epub 2018 Feb 12. PubMed PMID: 29448010.

View more references (pubmed link)

Board Certifications and Certificates

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

Hospital Affiliations

  • Le Bonheur Children's Hospital

Dr. Jancelewicz enjoys spending time with his wife Erica and their children, Greyson, Bennett, and Perry. He also enjoys running, enology and cooking.