Petar Mamula, MD

Petar Mamula, MD, is the Director of the Endoscopy Suite and Co-Director of the Center for Digestive, Liver and Pancreatic Medicine at The Children's Hospital of Philadelphia.

Locations: Main Campus
Appointments and Referrals: 1-800-TRY-CHOP

  • Education and Training

    Medical School

    MD - University of Zagreb School of Medicine, Croatia

    Internship

    Medicine - Clinical Hospital Center Zagreb, Zagreb, Croatia

    Residency

    Pediatrics - St. Luke’s-Roosevelt Hospital Center, New York, NY (Chief Resident, 1997-98)

    Fellowship

    Pediatric Gastroenterology and Nutrition - The Children's Hospital of Philadelphia, Philadelphia, PA

    Additional Training

    Masterclass in Pediatric Endoscopy - Royal Free Hospital, London, UK

    Board Certification

    Pediatric Gastroenterology
    Pediatrics

    Undergraduate Degree

    Postgraduate School of Natural Science, Faculty of Science, Zagreb, Croatia

  • Titles and Academic Titles

    Attending Physician

    Director, Endoscopy Suite

    Co-Director, Center for Digestive, Liver and Pancreatic Medicine

    Associate Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania

  • Centers and Programs
  • Research Interests

    Endoscopy
    Inflammatory bowel disease

  • Publications

    Books

    Books

    2008

    Mamula P, Markowitz J, Baldassano R, editors. Pediatric inflammatory bowel disease. New York: Springer. 2008.

    Schwartz MW, Bell LM, Bingham PM, Chung EK, Friedman DF, Tanel RE, Mamula P, Loomes KM, Mascarenhas M, editors. The 5-minute pediatric consult. 5th ed. Philadelphia: Lippincott, Williams & Wilkins; 2008.

    Chapters

    2013

    Lee D, Mamula P: What is the role of capsule endoscopy in pediatrics and what are some other new or emerging endoscopic innovations? Curbside consultation in pediatric GI. Rosh JR and Bousvaros A (eds.). SLACK Incorporated, Thorofare, Page: 237-240, 2013.

    Mamula P: Not all foreign bodies are created equal. Pediatria Polska 88: 213-218, 2013.

    Pall H, Kramer RE, Lin T, Manfredi M, Shah M, Stephen T, Tucker N, Gibbhons TE, Sahn BN, McComber M, Zacur G, Friedlander J, Quiroas AJ, Fishman D, Mamula P: Bowel preparation for pediatric colonoscopy: A clinical report of the NASPGHAN Endoscopy of Procedures Committee. J Pediatr Gastroenterol Nutr 2013 Notes: In press.

    Albenberg L, Mamula P, Baldassano R, Brown K, Russo P: Colitis in infancy and childhood. Pathology of Pediatric Gastrointestinal and Liver Disease. Russo P (eds.). Springer, 2013 Notes: In press.

    Ghanem L, Sahn B, Mamula P: Colonic bleeding. Pediatric Gastroenterology: A Color Handbook. Pohl J (eds.). Mason Publishing, 2013.

    Kramer RE, Lin T, Manfried M, Shah M, Stephen T, Tucker N, Lerner DG, Gibbons TE, Pall H, Sahn B, McComber M, Zacur G, Friedlander J, Quiros AJ, Frishman D, Mamula P: Management of ingested foreign bodies in children: A clinical report of the NASPGHAN Endoscopy and Procedures Committee. J Pediatr Gastroenterol Nutr 2013.

    Misak Z, Mamula P: Gastroterologija. Djecja Reumatologija, Skolska Knjiga. Harjacek M (eds.). 2013 Notes: In Press.

    Sahn B, Mamula P: Gastroenterology. The Philadelphia Guide: Inpatient Pediatrics. Frank G (eds.). McGraw-Hill, 2013.

    Sahn B, Mamula P: Magnet ingestion in children. J Pediatr Gastroenterol Nutr 2013 Notes: In press.

    2012

    Albenberg L, Mamula P, Kelsen J: Biologics for the treatment of moderate to severe ulcerative colitis in pediatric patients. Pediatric Health, Medicine, and Therapeutics 3: 51-8, 2012.

    Hussain SZ, Bousvaros A, Gilger M, Mamula P, Gupta S, Kramer S, Noer RA: Management of ingested magnets in children. J Pediatr Gastroenterol Nutr 55(3): 239-242, 2012.

    Jacobstein D, Baldassano R, Mamula P: Crohn Disease. The 5 Minute Pediatric Consult. Schwartz MW (eds.). Williams & Wilkins, Philadelphia, Page: 232-3, 2012.

    2011

    Veres, G. Korponay-Szabo, I. Maka, E. Glasz, T. Mamula, P. Papp, M. Dezsofi, A. Arato, A.: Duodenal ulceration in a patient with celiac disease and plasminogen I deficiency: coincidence or cofactors?. Pediatrics 128(5): e1302-6, Nov 2011.

    Banerjee S, Desilets D, Diehl DL, Farraye FA, Kaul V, Kethu SR, Kwon RS, Mamula P, Pedrosa MC, Rodriguez SA, Song LM, Tierney WM: Computer-assisted personalized sedation. Gastrointest Endosc 73(3): 423-7, 2011.

    2010

    Grossman AB, Mamula P. Inflammatory bowel disease. In: Shah SS, Frank G, editors. The inpatient pediatrics work-up. Philadelphia: Lippincott Williams & Wilkins; 2010. p. 176-86.

    Anupindi S, Ayyala R, Kelsen J, Mamula P, Applegate KE. Imaging of inflammatory bowel disease in children. In: Medina LS, Applegate KE, Blackmore CC, editors. Evidence-based imaging in pediatrics. New York: Springer; 2010. p. 487-508.

    Mamula P. Your child with inflammatory bowel disease. In: Oliva-Hemker M, Ziring D, Bousvaros A, editors. A family guide for caregiving. The Johns Hopkins University Press; 2010.

    2007

    Sreedharan R, Kamath B, Mamula P. Pancreas. In: Liacouras C, Piccoli D, editors. Pediatric gastroenterology: the requisites in pediatrics. Philadelphia: Mosby; 2007. p. 307-313.

    Kamath B, Mamula P. Gastrointestinal bleeding. In: Liacouras C, Piccoli D, editors. Pediatric gastroenterology: the requisites in pediatrics. Philadelphia: Mosby; 2007. p. 87-97.

    2005

    Kamath B, Sreedharan R, Mamula P. Development and function: pancreas, bile duct, gallbladder. In: Ahmad N, Ginsberg G, editors. Clinician's guide to gastroenterology series on pancreaticobiliary disorders. 1st ed. Thorofare: SLACK Incorporated; 2005. p. 1-20.

    2004

    Mamula P, Sreedharan R, Brown K. Gastrointestinal diseases. In: Shah S, editor. Pediatric infectious diseases. Malden: Blackwell Publishing; 2004. p. 79-89. 

    Mamula P, Markowitz J, Baldassano R. Clinical features and natural history of pediatric inflammatory bowel disease. In: Sartor RB, Sandborn W, editors. Kirsner's inflammatory bowel disease. Philadelphia: WB Saunders; 2004. p. 301-305.

    2002

    Mamula P. Crohn's disease. In: Schwartz, MW, editor. The 5-minute pediatric consult. Baltimore: Williams & Wilkins, Inc.; 2002. p. 288-289.

    2001

    Mamula P, Mascarenhas M. Neonatal diarrhea. In: Polin R, editor. Fetal and neonatal secrets. Philadelphia: Hanley & Belfus; 2001.

    Mamula P, Markowitz JE, Baldassano RN, Piccoli DA, Liacouras CA. Gastroenterology. In: Polin R, editor. Pediatric secrets. 3rd ed. Philadelphia: Hanley & Belfus, Inc., 2001. 

    Abstracts

    2013

    Sahn B, Dadhania N, Nance M, Anupindi S, Mamula P: "Duodenal Hematoma Following EGD: A case series and comparison with blunt abdominal trauma" North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Annual Meeting, Poster Presentation October 2013.

    Waisbourd-Zinman, O, Mamula, P, Friedman, J, Piccoli, D: "Severe Bannayan-Riley-Ruvalcaba Syndrome caused by a deletion encompassing both the BMPR1A and PTEN genes" North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Annual Meeting, Poster Presentation October 2013.

    Walsh, C, Ling, S, Mamula, P, Lightdale, J, Yu, J, Walters, T, Carnahan, H: "Gastrointestinal Endoscopy Competency Assessment Tool for Pediatric Colonoscopy (GiECAT KIDS)A multi-center validation study. North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Annual Meeting, Poster of Distinction October 2013.

    Lerner D, Gurram B, El-Chammas K, Goh V, Anderson L, Mamula, Goday P, Li B, Vitola B: Can pediatric GI fellows meet the current NASPGHAN procedural competency guidelines? J Pediatr Gastroenterol Nutr 2013 Notes: In press.

    Raina A, Conrad M, Sahn B, Sedarat A, Ginsberg G, Ahmad N, Chandrasekhara V, Mamula P, Kochman M: Endoscopic ultrasound with or without fine needle aspiration has a meaningful impact on clinical care in the pediatric population. Gastrointest Endosc 77(5S), 2013.

    2012

    Albenberg L, Spengler C, Klink A, Mattei P, Baldassano R, Mamula P, Kelsen J: Diverting ileostomy for the treatment of severe refractory indeterminate colitis. J Pediatr Gastroenterol Nutr 55(Suppl1 E 64), 2012.

    Enestvedt B, Tofani C, Lee D, Shah P, Ginsberg G, Long W, Ahmad N, Jaffe D, Chandrasekhara V, Mamula P, Kochman M: ERCP in the pediatric population is successful and efficacious. Gastrointest Endosc 75(4S), 2012.

    Sahn B, Kelsen J, Maltman S, Stanley N, Mamula P: A prospective randomized comparison of air and carbon dioxide insufflation in pediatric colonoscopy. J Pediatr Gastroenterol. Nutr 55(Suppl 1:E18), 2012.

    Papers

    2013

    Terry NA, Chen-Lim ML, Ely E, Jatla M, Ciavardone D, Esch, S, Farace L, Jannelli F, Puma A, Carlow D, Mamula P: Polyethylene Glycol Powder Solution Versus Senna for Bowel Preparation for Colonoscopy in Children. JPGN 56(2): 215-219, February 2013.

    Enestvedt B, Tofani C, Lee D, Shah P, Ginsberg G, Long W, Ahmad N, Jaffe D, Chandrasekhara V, Mamula P, Kochman M: ERCP in the pediatric population is successful and efficacious. J Pediatr Gastroenterol Nutr 57(5): 649-654, November 2013.

    Hsu E, Chugh P, Kronman M, Markowitz J, Piccoli D, Mamula P: Incidence of perforation in pediatric GI endoscopy and colonoscopy: an 11 year experience. Gastrointest Endosc 77(6): 960-966, 2013.

    Sahn B, Blinman T, Cahill AM, Bhatti T, Maqbool A, Mamula P, Anupindi S: Vascular malformation as a cause of occult GI bleeding, Image for the Month. J Pediatri Gastroenterol Nutr. In press, 2013.

    Terry NA, Chen-Lim ML, Ely E, Jatla M, Ciavardone D, Esch S, Farace L, Janelli F, Puma A, Carlow D, Mamula P: Polyethylene Glycol Powder Solution vs. Senna for Bowel Preparation for Colonoscopy in Children: A Prospective, Randomized, Investigator-Blinded Trial. Pediatrics 128(5): 1302-6, 2013.

    2012

    Lerner D, Gurram B, El-Chammas K, Goh V, Anderson L, Mamula P, Goday P, Li B, Vitela B: Can pediatric GI fellows meet the current NASPGHAN procedural competency guidelines? J Pediatr Gastroenterol Nutr 55(Suppl 5 22), 2012.

    2011

    Veres G, Korponay-Szabó I, Maka E, Glasz T, Mamula P, Papp M, Dezsöfi A, et al. Duodenal ulceration in a patient with celiac disease and plasminogen I deficiency: coincidence or cofactors? Pediatrics. 2011 Nov;128(5):e1302-6. Epub 2011 Oct 3. Cited in PubMed; PMID 21969282. Read the abstract

    Taubman B, Mamula P, Sherry DD. Prevalence of asymptomatic celiac disease in children with fibromyalgia: a pilot study. Pediatr Rheumatol Online J. 2011 Jun 13;9:11. Cited in PubMed; PMID 21668956. Read the article

    Friedlander JA, Loeben GS, Finnegan PK, Puma AE, Zhang X, de Zoeten EF, et al. A novel method to enhance informed consent: a prospective and randomised trial of form-based versus electronic assisted informed consent in paediatric endoscopy. J Med Ethics. 2011 Apr; 37(4):194-200. Epub 2011 Jan 18. Cited in PubMed; PMID 21245476. Read the abstract

    ASGE Technology Committee, Banerjee S, Desilets D, Diehl DL, Farraye FA, Kaul V, et al. Computer-assisted personalized sedation. Gastrointest Endosc. 2011 Mar;73(3):423-7. Epub 2011 Jan 14. Cited in PubMed; PMID 21237458. Read the abstract

    2010

    ASGE Technology Committee, Kethu SR, Banerjee S, Desilets D, Diehl DL, Farraye FA, et al. Endoscopic tattooing. Gastrointest Endosc. 2010 Oct;72(4):681-85. Cited in PubMed; PMID 20883844. Read the abstract.

    ASGE Technology Committee, Desilets D, Kaul V, Tierney WM, Banerjee S, Diehl DL, et al. Automated endoscope reprocessors. Gastrointest Endosc. 2010 Oct;72(4):675-80. Cited in PubMed; PMID 20883843. Read the abstract.

    Alkhouri N, Franciosi JP, Mamula P. Familial adenomatous polyposis in children and adolescents. J Pediatr Gastroenterol Nutr. 2010 Dec;51(6):727-32. Epub 2010 Aug 25. Cited in PubMed; PMID 20808249.  Read the abstract.

    Kelsen JR, Kim J, Latta D, Smathers S, McGowan KL, Zaoutis T, et al. Recurrence rate of clostridium difficile infection in hospitalized pediatric patients with inflammatory bowel disease. Inflamm Bowel Dis. 2011 Jan;17(1):50-5. doi: 10.1002/ibd.21421. Epub 2010 Aug 18. Cited in PubMed; PMID 20722068. Read the abstract.

    Hunter A, Mamula P. Bowel preparation for pediatric colonoscopy procedures. J Pediatr Gastroenterol Nutr. 2010 Sep;51(3):254-61. Cited in PubMed; PMID 20683200. Read the abstract.

    Schaefer ME, Machan JT, Kawatu D, Langton CR, Markowitz J, Crandall W, et al. Factors that determine risk for surgery in pediatric patients with Crohn's Disease. Clin Gastroenterol Hepatol. 2010 Sep;8(9):789-94. Epub 2010 May 31. Cited in PubMed; PMID 20566311. Read the abstract

    Dotson JL, Hyams JS, Markowitz J, Leleiko NS, Mack DR, Evans JS, et al. Extraintestinal manifestations of pediatric inflammatory bowel disease and their relation to disease type and severity. J Pediatr Gastroenterol Nutr. 2010 Aug;51(2):140-5. Epub 2010 May 4. Cited in PubMed; PMID 20453677. Read the abstract

    Turner D, Mack D, Leleiko N, Walters TD, Uusoue K, Leach ST, et al. Severe pediatric ulcerative colitis: a prospective multicenter study of outcomes and predictors of response. Gastroenterology. 2010 Jun;138(7):2282-91. Epub 2010 Feb 26. Cited in PubMed; PMID 20193683. Read the abstract

    Kelsen JR, Rosh J, Heyman M, Winter HS, Ferry G, Cohen S, Mamula P, Baldassano RN. Phase I trial of sargramostim in pediatric Crohn's disease. Inflamm Bowel Dis. 2010 Jul;16(7):1203-8. Read the abstract »

    2009

    ASGE Technology Committee, Kwon RS, Wong Kee Song LM, Adler DG, Conway JD, et al. Endocytoscopy. Gastrointest Endosc. 2009 Oct;70(4):610-3. Cited in PubMed; PMID 19788978. No abstract.

    Rosh JR, Lerer T, Markowitz J, Goli SR, Mamula P, Noe JD, et al. Retrospective evaluation of the safety and effect of adalimumab therapy (RESEAT) in pediatric Crohn's disease. Am J Gastroenterol. 2009 Dec;104(12):3042-9. Epub 2009 Sep 1. Cited in PubMed; PMID 19724267. Read the abstract

    Colletti RB, Baldassano RN, Milov DE, Margolis PA, Bousvaros A, Crandall WV, et al. Variation in care in pediatric Crohn disease. Pediatr Gastroenterol Nutr. 2009 Sep;49(3):297-303. Cited in PubMed; PMID 19590456. Read the abstract

    ASGE Technology Committee, Kantsevoy SV, Adler DG, Conway JD, Diehl DL, Farraye FA, et al. Confocal laser endomicroscopy. Gastrointest Endosc. 2009 Aug;70(2):197-200. Epub 2009 Jun 25. Cited in PubMed; PMID 19559426. No abstract available.

    ASGE Technology Committee, Mamula P, Adler DG, Conway JD, Diehl DL, Farraye FA, Kantsevoy SV, Kaul V, Kethu SR, Kwon RS, Rodriguez SA, Tierney WM. Colonoscopy preparation. Gastrointest Endosc. 2009 Jun;69(7):1201-9. Cited in PubMed; PMID 19481646. No abstract available.

    ASGE Technology Committee, Diehl DL, Adler DG, Conway JD, Farraye FA, Kantsevoy SV, et al. Endoscopic retrieval devices. Gastrointest Endosc. 2009 May;69(6):997-1003. Cited in PubMed; PMID: 19410038. No abstract available.

    Orel R, Kamhi T, Vidmar G, Mamula P. Epidemiology of pediatric chronic inflammatory bowel disease in central and western Slovenia, 1994-2005. J Pediatr Gastroenterol Nutr. 2009 May;48(5):579-86. Cited in PubMed; 19367184. Read the abstract

    Turner D, Hyams J, Markowitz J, Lerer T, Mack DR, Evans J, et al. Appraisal of the pediatric ulcerative colitis activity index (PUCAI). Inflamm Bowel Dis. 2009 Aug;15(8):1218-23. Cited in PubMed; PMID 19161178.  Read the article

    Hyams JS, Lerer T, Griffiths A, Pfefferkorn M, Kugathasan S, Evans J, et al. Long-term outcome of maintenance infliximab therapy in children with Crohn's disease. Inflamm Bowel Dis. 2009 Jun;15(6):816-22.PMID: 19107783. Read the abstract

    Keljo DJ, Markowitz J, Langton C, Lerer T, Bousvaros A, Carvalho R, et al. Course and treatment of perianal disease in children newly diagnosed with Crohn's disease. Inflamm Bowel Dis. 2009 Mar;15(3):383-7. Cited in PubMed; PMID 19023863. Read the article

    Posters and Presentations

    2014

    "Foreign Body Ingestion", Alberta Children's Hospital Foundation, Calgary, Canada

    "Pediatric IBD Therapy", Alberta Children's Hospital Foundation, Calgary, Canada

    2013

    "Promotions and Appointments," 2nd year fellows conference, Scottsdale, AZ

    "Transition," MDS Regional Immunology Forum, Rovinj, Croatia

    "Critical foreign body ingestions," Meet the Professor Breakfast, American Society for Gastrointestinal Endoscopy, Digestive Disease Week, Orlando, FL

    Series of lectures at the Seminars on Pediatric Gastroenterology, American Austrian Foundation, Salzburg, Austria

    "Esophageal foreign bodies," Pediatric Grand Rounds, Children's Hospital of Eastern Ontario, Attava, Canada

    "Critical foreign body ingestions," Annual APGNN Meeting, Chicago, IL

    "Foreign Body Ingestions" The Children's Hospital of Philadelphia, Joint Conference, Feeding & Swallowing Center

    2012

    "Pediatric endoscopy," Third Polish-American Pediatric Meeting, Rzeszow, Poland

    "Pediatric Inflammatory Bowel Disease," Third Polish-American Pediatric Meeting, Rzeszow, Poland

    "On call management of patients with food impaction and foreign body ingestion," DDW/ASGE, San Diego, CA

    Series of lectures at the VIIth Annual International Pediatric Summer School, Dubrovnik, Croatia

    "Risks and complications of pediatric endoscopy," Annual NASPGHAN meeting, Salt Lake City, UT

    "Update on critical foreign body ingestion," Postgraduate Course, Annual NASPGHAN meeting, Salt Lake City, UT

  • Awards and Honors

    2013, Fellows Faculty Honor Roll, Division of GI, Hepatology and Nutrition
    2012, Fellows' Teaching Award, Division of GI, Hepatology and Nutrition
    2009, NASPGHAN Endoscopy Award
    2007, Pediatric Resident Teaching Honor Roll
    2001, Clinical Investigator Program Award
    2001, Poster of Distinction, North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Annual Meeting
    2001, Junior Clinical Investigator Program Award
    2000, Annenberg Inflammatory Bowel Disease Conference, Fellow Scholarship
    1999, Meet the Faculty Breakfast Case Presentation Award, NASPGHAN Annual Meeting
    1997, The Chief Resident's Award, St. Luke's-Roosevelt Hospital Center

  • Editorial and Academic Positions

    Editorial positions

    Reviewer 

    Journal of Pediatric Gastroenterology and Nutrition
    Digestive and Liver Disease
    Clinical Gastroenterology and Hepatology
    Gastroenterology
    Pediatric Emergency Care
    Methods and Findings in Experimental and Clinical Pharmacology
    Cases in Pediatric Gastroenterology from The Children's Hospital of Philadelphia
    Medscape General Medicine
    Inflammatory Bowel Disease
    Pediatrics
    Diseases of the Colon and Rectum
    Journal of Pediatrics
    American Journal of Gastroenterology
    Therapy

    Editor

    JPGN, Image of the Month
    Techniques in Gastrointestinal Endoscopy, guest editor

    Academic and institutional committees

    2008-present, Joint Penn/CHOP Center for Digestive, Liver and Pancreatic Medicine
    2006-present, Operative and Invasive/Non Invasive Committee, The Children's Hospital of Philadelphia
    2002-present, Civic Center Ambulatory Facility Planning Group, The Children's Hospital of Philadelphia
    2001-present, Member, Pain/Sedation Subcommittee of the Quality Improvement Committee, The Children's Hospital of Philadelphia

  • Leaderships

    Memberships in professional organizations

    American Society of Gastrointestinal Endoscopy

    • 2006-present, Organizing Committee
    • 2005-present, Annual Scientific Program Committee

    Crohn's and Colitis Foundation of America
    North American Society for Pediatric Gastroenterology and Nutrition

    • 2010-present, Endoscopy & Procedures Committee, Chair
    • 2006-present, Organizing Committee