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

  • 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 Feb 10. pii: S0022-3468(18)30086-1. doi: 10.1016/j.jpedsurg.2018.02.032. [Epub ahead of print] 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 Feb 12. pii: S1043-0679(18)30021-2. doi: 10.1053/j.semtcvs.2018.02.010. [Epub ahead of print] PubMed PMID: 29448010.
  • Cameron DB, Williams R, Geng Y, Gosain A, Arnold MA, Guner YS, Blakely ML, Downard CD, Goldin AB, Grabowski J, Lal DR, Dasgupta R, Baird R, Gates RL, Shelton J, Jancelewicz T, Rangel SJ, Austin MT. Time to appendectomy for acute appendicitis: A systematic review. J Pediatr Surg. 2018 Mar;53(3):396-405. doi: 10.1016/j.jpedsurg.2017.11.042. Epub 2017 Nov 20. Review. PubMed PMID: 29241958.
  • Dasgupta R, Renaud E, Goldin AB, Baird R, Cameron DB, Arnold MA, Diefenbach KA, Gosain A, Grabowski J, Guner YS, Jancelewicz T, Kawaguchi A, Lal DR, Oyetunji TA, Ricca RL, Shelton J, Somme S, Williams RF, Downard CD. Ovarian torsion in pediatric and adolescent patients: A systematic review. J Pediatr Surg. 2017 Nov 16. pii: S0022-3468(17)30709-1. doi: 10.1016/j.jpedsurg.2017.10.053. [Epub ahead of print] PubMed PMID: 29153467.
  • Downard CD, Calkins CM, Williams RF, Renaud EJ, Jancelewicz T, Grabowski J, Dasgupta R, McKee M, Baird R, Austin MT, Arnold MA, Goldin AB, Shelton J, Islam S. Treatment of congenital pulmonary airway malformations: a systematic review from the APSA outcomes and evidence based practice committee. Pediatr Surg Int. 2017 Sep;33(9):939-953. doi: 10.1007/s00383-017-4098-z. Epub 2017 Jun 6. PubMed PMID: 28589256.

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.