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Curriculum Vitae

Imran Hassan , MD
Assistant Professor, Division of General Surgery
E-mail: ihassan@siumed.edu

 

 

Brief Biography

Dr. Imran Hassan is an Assistant Professor in the Division of General Surgery at Southern Illinois University School of Medicine. He is board certified in General Surgery. He specializes in all aspects of colon and rectal surgery. His practice includes the treatment of colon and rectal cancer, diverticulitis, ulcerative colitis, Crohn’s disease, polyps, and anorectal conditions such as hemorrhoids, fistulas and rectal prolapse. He also performs colonoscopy and has a special interest in laparoscopic surgery, which involves using minimally invasive techniques to treat many diseases of the colon and rectum. He has many research interests including surgical management of rectal cancer with sphincter-saving procedures and quality of life outcomes following colorectal surgery.

Dr. Hassan completed his residency in General Surgery and research and clinical fellowships in Colon and Rectal Surgery from the Mayo Clinic in Rochester, Minnesota. Dr. Hassan is a member of the American College of Surgeons and the American Society of Colon and Rectal Surgeons.

For more information or to schedule an appointment with Dr. Hassan, please call SIU Physicians and Surgeons at 217-545-5555.

Employment

Southern Illinois University
School of Medicine, Physicians and Surgeons 2006 - present
Springfield, IL.

 

Academic Appointments

Director Research, Colon and Rectal Surgery Fellowship                        July 2009-Present
Southern Illinois University School of Medicine, Springfield, IL.

Assistant Professor, Division of General Surgery,                                  July 2006-Present
Southern Illinois University, School of Medicine, Springfield, IL.


Post Graduate Appointments

  • Clinical Fellow, Colon and Rectal Surgery, Mayo Clinic, 2005-2006
    Mayo Clinic College of Medicine, Rochester, MN.
  • Research Fellow, Colon and Rectal Surgery, Mayo Clinic, 2004-2005
    Mayo Clinic College of Medicine, Rochester, MN.
  • Surgical Trainee, Colon and Rectal Surgery, Freeman Hospital, 2003-2004
    Newcastle upon Tyne, England.
  • Resident in General Surgery, Mayo Clinic 1997-2003
    General Surgery Residency Program,
    Mayo Clinic College of Medicine, Rochester, MN.

 

EDUCATION

University of Illinois, Chicago, IL                                               August 2010-present
Certificate in Patient Safety, Error Science and Disclosure
Program

Mayo Graduate School of Medicine, Rochester, MN            2005
Certificate in Clinical Research

Aga Khan University, Karachi, Pakistan                                  1995
Bachelor of Medicine and Surgery (M.B., B.S.)

 

SURGICAL TRAINING

Mayo Clinic College of Medicine, Rochester, MN                  July 2005 – June 2006
Clinical Fellow, Colon and Rectal Surgery

Mayo Clinic College of Medicine, Rochester, MN                  August 2004-June 2005
Research Fellow, Colon and Rectal Surgery

Freeman Hospital, Newcastle upon Tyne, England             July 2003-June 2004
Surgical Trainee, Colon and Rectal Surgery

Mayo Clinic College of Medicine, Rochester, MN                  July 1997-June 2003
Resident in General Surgery, Mayo Clinic General Surgery
Residency Program

 

MEDICAL SPECIALTY CERTIFICATION AND LICENSURE

American Board of Surgery #49173, 2004
American Board of Colon and Rectal Surgery #1986, 2008
Illinois – 036-116661

AWARDS

Best paper, Northwest Colorectal Society Meeting, Salishan, OR                 2005
1st Place, Minnesota State Trauma Competition                                        2003
Trainee Travel Award, American Federation of Clinical Research                2003
Chief Resident Teacher of the Year, Department of Surgery, Mayo Clinic  2003
Trainee Travel Award, American Federation of Clinical Research                2002
Mayo Medical School Excellence in Teaching Recognition                           1999-2000
Dean’s Travel Grant to 11th International Medical Sciences Students
Congress, Istanbul, Turkey                                                                     1995

ACADEMIC APPOINTMENTS

Director Research, Colon and Rectal Surgery Fellowship                  July 2009-Present
Southern Illinois University School of Medicine, Springfield, IL

Assistant Professor, Division of General Surgery                                 July 2006-Present
Southern Illinois University School of Medicine, Springfield, IL

RESEARCH ACTIVITIES

Research Fellow, Colon and Rectal Surgery, Mayo Clinic          August 2004-June 2005
Mayo Graduate School of Medicine, Rochester, MN
Supervisors: R.R. Cima, M.D. and Heidi Nelson, M.D.

Research Associate, Department of Surgery                             February 1996-June 1997
Beth Israel Deaconess Medical Center, Boston, MA
Supervisor: J.B. Matthews, M.D.

PROFESSIONAL AFFILIATIONS AND MEMBERSHIPS

  • American College of Surgeons – Fellow
  • American Society of Colon and Rectal Surgeons
  • American Medical Association
  • Association for Academic Surgery
  • Association for Surgical Education
  • Mayo Medical Alumni Society
  • Midwest Surgical Association
  • Society of American Gastrointestinal Endoscopic Surgeons
  • Society for Surgeons of the Alimentary Tract
  • The Priestly Society, Mayo Alumni Surgical Association
  • Central Surgical Association
  • The Illinois Surgical Society
  • Sangamon County Medical Society

 

HOSPITAL COMMITTEES

Cancer Liaison, Commission On Cancer, American College of Surgeons January 2010-Present
Memorial Medical Center Gastrointestinal Lab Committee    July 2009-Present
St. John’s Hospital Gastrointestinal Lab Committee              July 2009-Present
Memorial Medical Center Cancer Committee                       July 2009-Present
Trauma Multidisciplinary Committee                                   April 2008-Present
Trauma Quality Improvement Committee                           April 2008-Present
St. John’s Hospital Colorectal Tumor Board                         July 2008-Present
Colorectal Organ Site Working Group, SIU Cancer Center    July 2006-Present

 

MEDICAL SCHOOL COMMITTEES

Translational Research Subcommittee                                       November 2010-Present
Central Research Committee                                                    July 2009-Present
Clinical Competency Examination (CCX) Committee                   July 2006-Present
Blueprint Subcommittee (CCX)                                                 July 2006-Present
Evidence Based Medicine Subcommittee                                    July 2006-Present
Surgical Education and Performance Group                                July 2006-Present
Resident Evaluation and Promotion Committee                           July 2006-Present

 

PROFESSIONAL SOCIETY COMMITTEES

ASCRS Membership Committee                                                July 2010-Present

EDITORIAL/EDITORIAL ADVISORY BOARD

World Journal of Gastroenterology                                             January 2010-Present
Colorectal Diseases                                                                  January 2011-Present
Updates in Surgery                                                                   March 2011-Present

 

AD HOC REVIEWER

Colorectal Diseases
Diseases of the Colon and Rectum
Surgery
Surgical Innovation
European Journal of Gastroenterology and Hepatology
British Journal of Surgery
World Journal of Surgery
World Journal of Gastroenterology
Journal of Gastrointestinal Surgery
Surgical Oncology
Faculty of 1000 Medicine
McMaster Online Rating of Evidence (MORE)

PEER REVIEWED PUBLICATIONS

  1. Empyema thoraces, an unusual cause for mediastinal widening on a PA film:  A review of literature regarding the value of CT scan in evaluating empyemas.  J.A. Khan, N. Ajanee, I. Hassan, I. Rizvi.  Specialist 1994; 10:317-321
  2. Down’s syndrome in Pakistan: Prevalence and presentation in a defined birth cohort.  I. Hassan, A.A. Haleem, Z.A. Bhutta.  Specialist 1996; 12:207-211. 
  3. Churg Strauss syndrome with intestinal perforation:  A case report and review of literature.  J.A. Khan, I. Hassan, S. Pervaiz, S.M. Khan, W. Jafri.  Journal of Pakistan Medical Association 1996; 46:23-26. 
  4. Herpes Zoster mistaken for biliary colic and treated by laparoscopic cholecystectomy: A cautionary case report.  I. Hassan, J.H. Donohue.  Surgical Endoscopy 1996; 10: 848-849.
  5. Profile and risk factors for congenital heart disease amongst a Pakistani birth cohort:  A case control study.  I. Hassan, A.A. Haleem, Z.A. Bhutta.  Journal of Pakistan Medical Association 1997; 47:78-81. 
  6. Road Traffic Injuries in Karachi:  The disproportionate role of buses and trucks.  S. Luby, I. Hassan, N. Jahangir, N. Rizvi, S. Ubaid,  M. Farrooqui, S. Sadruddin  Southeast Asian Journal of Tropical Medicine and Public Health 1997; 28:395-398.
  7. Regulation of Na-K-2Cl Cotransporter gene expression and function during enterocyte differentiation: Modulation of intestinal chloride secretory capacity by butyrate.  J.B. Matthews, I. Hassan, S. Meng, S.Y. Archer, R.A. Hodin.  Journal of Clinical Investigation 1998; 101: 2072-2079.
  8. Malignant transformation of giant condyloma acuminatum (Buschke-Lowenstein Tumor).  I. Hassan, S. Nivatvongs, A.F. Horgan.  Surgical Rounds 2001; 6:317-321.
  9. Chronic renal failure secondary to oxalate nephropathy:  A preventable complication after jejuno-ileal bypass.  I. Hassan, J.M. Sarmiento, L.A. Juncos, D.S. Milliner, M.G. Sarr.  Mayo Clinic Proceedings 2001; 76:758-760.
  10. V-Y sliding flaps for repair of large bilateral perianal defects.  I. Hassan, S. Nivatvongs, A.F. Horgan.  American Journal of Surgery 2001; 181:363-365.
  11. A case of asymptomatic thoracic aorta mural thrombi.  I. Hassan, K.J. Zehr, W.K. Freeman.  Annals of Thoracic Surgery 2001; 72:1735-7.
  12. Spontaneous pneumomediastinum from blunt chest trauma.  I. Hassan, D.C. Cullinane, F.C. Nichols.  Contemporary Surgery 2002; 6:302-306.
  13. Motorscooter handle bar syndrome.  I. Hassan, T.E. Rassmussen, D.C. Cullinane, J.M. Panneton.  J Trauma 2002; 53:806.
  14. Ehlers-Danlos syndrome type IV and a novel mutation of the type III procollagen gene as a cause of abdominal apoplexy.  I. Hassan, T.E. Rassmussen, P. Gloviczki, D. Whitman.  Mayo Clinic Proceedings  2002; 77:861-3.
  15. Acute pancreatitis after extracorporeal shock wave lithotripsy for a renal calculus.  I. Hassan, S.P. Zietlow.  Urology 2002; 60:1111.
  16. Surgical management of abdominal tuberculosis.  I. Hassan, E. Barkalis, R.E. Thompson, F.G. Que.  J Gastrointest Surg 2002; 6:862-867.
  17. Curative potential of multimodality therapy for locally recurrent cancer.  D. Hahnloser, H. Nelson, L.L. Gunderson, I. Hassan, M.G. Haddock, M.J. O’Connel, S. Cha, D.J. Sargent, A.F. Horgan.  Annals of Surgery 2003; 237:502-508.
  18. Outcome of patients undergoing ileal pouch anal anastomosis for left-sided chronic ulcerative colitis.  I. Hassan, A.F. Horgan, S. Nivatvongs.  J Gastrointestinal Surgery 2003; 7:567-57.
  19. Operative management of primary retroperitoneal sarcomas:  A reappraisal of an institutional experience.  I. Hassan, S.Z. Park, J.H. Donohue, D.M. Nagorney, A.G. Nasciemento, P.A. Kay.  Annals of Surgery 2004; 239:244-250.
  20. Intraabdominal desmoplastic small round cell tumors.  I. Hassan, R. Shyyan, J.H. Donohue, J.H. Edmonson, L.L. Gunderson, C.R. Moir, C.A. Arndt, A. G. Nascimento, F.G. Que.  Cancer 2005; 104(6):1264-70.
  21. Preoperative intensive, community-based vs. traditional stoma education: A randomized, controlled trial.  S. Chaudhri, L. Brown, I. Hassan, A.F. Horgan.  Dis Colon Rectum 2005; 48:504-9.
  22. Quality of life after ileal pouch anal anastomosis and ileorectal anastomosis in patients with familial adenomatous polyposis.  I. Hassan, H.K. Chua, S.F. Donnelly, B.G. Wolff, R.R. Dozois, D.R. Larson, C.D. Schleck, H. Nelson.  Dis Colon Rectum 2005; 48:2032-2037.
  23. Posterior circumflex humeral artery aneurysm in two professional volleyball players: A case report and review of the literature.  A.L. McIntosh, I. Hassan, K.J. Cherry, D. Dahm.  American Journal of Orthopedics 2006; 35(1):33-36.
  24. Exposure to electrocautery toxins in laparoscopic and open colorectal surgery – Smoke, but don’t inhale.  I. Hassan, E.R. Drelichman, B.G. Wolff, C. Ruiz, S.C. Sobczak, D.W. Larson.  Professional Safety 2006; 4:38-41.
  25. Clinical, pathologic and immunohistochemical characteristics of gastrointestinal stromal tumors of the colon and rectum: Implications for surgical management and adjuvant therapies.  I. Hassan, Y.N. You, E.J. Dozois, R. Shayyan, T.C. Smyrk, S.H. Okuno, J.H. Donohue.  Dis Colon Rectum 2006; 49:609-15.
  26. Ileorectal anastomosis for slow transit constipation: long-term functional and quality of life results.  I. Hassan, J.H. Pemberton, T.M. Young-Fadock, Y.N. You, E.R. Drelichman, D. Rath-Harvey, C.D. Schleck, D. R. Larson.  J. Gastrointest Surg 2006; 10(10): 1330-6.
  27. Long-term functional outcomes and quality of life after coloanal anastomosis for distal rectal cancer.  I. Hassan, D.W. Larson, R.R. Cima, J.U. Gaw, H.K. Chua, D. Hahnloser, J.M. Stulak, M.M. O”Byrne, D.R. Larson, B.G. Wolff, J.H. Pemberton.  Dis Colon Rectum 2006; (9):1266-74.
  28. Using negative pressure wound therapy following surgery for complex pilonidal disease; a case series.  F.P. Bendewald, R.R. Cima, D.R. Metcalf, I. Hassan.  Ostomy Wound Manage 2007; 53(5):40-6.
  29. Internet use by patients in an inflammatory bowel disease specialty clinic.  I. Hassan, R.R. Cima, K.J. Anderson, D.W. Larson, E.J. Dozois, W.J. Sandborn, E.V. Loftus, J.H. Pemberton.  Inflamm Bowel Dis. 2007; 13(10):1266-70.
  30. Local anesthesia of upper anal canal for multiple rubber band ligation: description of technique and preliminary results.  C. Selvesekar, W. Suwanthanma, S. Nivatvongs, I. Hassan.  Dis Colon Rectum 2007; 50(9):1481-3.
  31. The impact of uncomplicated and complicated diverticulitis on laparoscopic surgery conversion rates and patient outcomes.  I. Hassan, R.R. Cima, D.W. Larson, E.J. Dozois, M.M. O’Byrne, D.R. Larson, J.H. Pemberton.  Surg Endosc. 2007; 21(10):1690-4. 
  32. Impact of pelvic radiotherapy on morbidity and durability of sphincter preservation after coloanal anastomosis for rectal cancers.  I. Hassan, D.W. Larson, B.G. Wolff, R.R. Cima, H.K. Chua, D. Hahnloser, M.M. O’Byrne, D.R. Larson, J.H. Pemberton.  Dis Colon Rectum 2008; 51(1):32-7.
  33. Surgically managed gastrointestinal stromal tumors: a comparative and prognostic analysis.  I. Hassan, Y.N. You, R. Shyan, E.J. Dozois, T.C. Smyrk, S.H. Okuno, C.D. Schleck, D.O. Hodge, J.H. Donohue.  Ann Surg Oncol. 2008; 15(1):52-9.
  34. Hand-assisted versus laparoscopic-assisted colorectal surgery: Practice patterns and clinical outcomes in a minimally-invasive colorectal practice.  I. Hassan, Y.N. You, R.R. Cima, D.W. Larson, E.J. Dozois, S.A. Barnes, J.H. Pemberton, Surg Endosc. 2008; 22(3):739-43.
  35. Segmental vs. extended colectomy: measurable differences in morbidity, function, and quality of life.  Y.N. You, H.K. Chua, H. Nelson, I. Hassan, S.A. Barnes, J. Harrington.  Dis Colon Rectum 2008; 51(7):1036-43.
  36. Foreign body ingestions in the mentally ill and handicapped: the importance of early intervention.  E.D. Wietfeldt, B.M. Eubanks, S. Pham, J. Rakinic, I. Hassan.  Chirurgia 2009; 22(2): 113-15. 
  37. Long-term functional and quality of life outcomes of patients after repair of large perianal skin defects for Paget’s and Bowen’s disease.  A. Conklin, I. Hassan, H.K. Chua, E.D. Wietfeldt, D.R. Larson, K.A. Thomsen, S. Nivatvongs.  J Gastrointest Surg 2009; 13(5):951-5.
  38. Utilization of bovine acellular dermal matrix for abdominal wall reconstruction:  A retrospective case series.  E.D. Wietfeldt, I. Hassan, J. Rakinic.  Ostomy Wound Management 2009; 55(8):52-57.
  39. Right lower quadrant pain and postpartum ovarian vein thrombosis.  Uncommon but not forgotten.  A. Johnson, E.D. Wietfeldt, V. Dhevan, I. Hassan.  Arch Gynecol Obstet.  2010; 281(2):261-3.
  40. Health-related information gathering practices in breast and colorectal specialty clinics: the end of the electronic divide?  E.D. Wietfeldt, I. Hassan, A. Johnson, C. Veeder, M. Boehler, G.L. Dunnington, J. Rakinic.  Am J Surg 2010; 199(3):364-8.
  41. Failure of institutionally derived predictive models of conversion in laparoscopic colorectal surgery to predict conversion outcomes in an independent data set of 998 laparoscopic colorectal procedures.  R.R. Cima, I. Hassan, V.P. Poola, D.W. Larson, E.J. Dozois, D.R. Larson, M.M. O’Byrne, M. Huebner.  Ann Surg 2010;251(4):652-8.
  42. Quality of life after coloanal anastomosis and abdominoperineal resection for distal rectal cancers: sphincter preservation versus quality of life.  M. Kasparek, I. Hassan, R.R. Cima, D.R. Larson, R. Gullerud, B. Wolff.  Colorectal Disease – In press. 
  43. Knowledge and attitudes regarding colorectal cancer screening among medical students:  a tale of two schools.  D. Wietfeldt, M. Boehler, C. Schwind, Y. Becker, B. Lewis, J. Rakinic, I. Hassan.  J Cancer Education 2010 Sep 17. [Epub ahead of print].
  44. Laparoscopic removal of copper intrauterine device from the sigmoid colon.  M.Y. Zeino, E.D. Wietfeldt, S.A. Ahad, C. Younkin, I. Hassan.  Accepted for publication, Journal of the Society of Laparoendoscopic Surgeons. 
  45. Single incision laparoscopic right hemicolectomy for colon cancer: Less is more?  V. Advani, S. Ahad, I. Hassan.  Accepted for publication, Surgical Innovation.

NON-PEER REVIEWED PUBLICATIONS

  1. The influence of prior abdominal operations on conversion and complication in laparoscopic colorectal surgery.  I. Hassan, R.R. Cima.  JSLS 2007; 11(1):172.  (Letter to Editor)
  2. Local excision of rectal tumours by transanal endoscopic microsurgery.  I Hassan, C.R. Selvasekar.  Br J Surg. 2007; 94(9):1179.  (Letter to Editor)
  3. Oncological outcome of ultra-low coloanal anastomosis with and without intersphincteric resection for low rectal adenocarcinoma.  I. Hassan, C.R. Selvasekar.  Br J Surg. 2007; 94(7):912.  (Letter to Editor)
  4. Quality of life after rectal resection and multimodality therapy.  I. Hassan, R.R. Cima.  J Surg Oncol. 2007; 96(8):684-92 (review)
  5. Minimally invasive techniques in colon surgery.  I. Hassan, T. Holt, E.D. Wietfeldt, B. Paris.  Minerva Chir. 2008; 63(2):115-25. 
  6. Quality of life outcomes in the treatment of advanced colorectal malignancies.  I. Hassan, R.R. Cima, J.A. Sloan.  Gastroenterology Clin N Am 2006; 35:53-64.
  7. Presacral Tumors:  Diagnosis and Management.  I. Hassan, E.D. Wietfeldt.  Clinics in Colon and Rectal Surgery 2009; 22(2):84-93.
  8. Meta-analysis of Survival of Patients with Stage 4 Colorectal Cancer Managed with Resection versus Chemotherapy Alone.  I. Hassan, V. Advani.  World J Surg 2010; Pub Online. (Letter to Editor)
  9. Single Incision Laparoscopic Colon Surgery.  Is the ride, worth the curve?  I. Hassan, V. Advani.  Accepted for publication, Colorectal Disease – In press. 
  10. Just because it can be done, should it?  I. Hassan.  Accepted for publication, Dis Colon Rectum 2010 – In press. 

BOOK CHAPTERS

  1. V. Eddy, K. Harris, I. Hassan, T. Arnell, C. DeVirgilio.  Perioperative Evaluation and Management Chapter, in Lawrence Essentials of General Surgery, Third edition, in press. 

 

EXTRAMURAL PRESENTATIONS

  1. The Death Bus.  I. Hassan, S.P. Luby, S. Saddruddin, N. Jahangir, N. Rizvi.  Grand Seminar on Megacities: Crises and Challenges, Karachi, Pakistan, November 1995.
  2. The incidence of Down’s syndrome at the Aga Khan University Hospital: A 5 year experience.  A.A. Haleem, I. Hassan, Z.A. Bhutta.  11th International Medical Sciences Students Congress, Istanbul, Turkey, April 1995.
  3. Opposing effects of the tyrosine kinase inhibitor Genestein on apical and basolateral transport sites of chloride secretory epithelia.  J.M. Mayol, E.C. Mun, B.J. Hrnjez, J.C. Song, I. Hassan, J.A. Smith, H.I. Akbarali, J.B. Matthews.  Society for Surgery of the Alimentary Tract, Washington, D.C., May 1997.
  4. Butyrate downregulates Na-K-2Cl cotransport and secretory capacity of model intestinal epithelia.  I. Hassan, S. Meng, S.A. Archer, B.J. Hrnjez, R.A. Hodin, J.B. Matthews.  Society for Surgery of the Alimentary Tract, Washington, D.C., May 1997. 
  5. Cytosolic [Cl] controls regulation of intestinal Na-K-Cl Cotransport.  I. Hassan, J. B. Matthews.  Association of Academic Surgeons, Dallas, TX, November 1997.
  6. Genestein inhibits cAMP-dependent Cl secretion and Na/K/Cl cotransport via a tyrosine kinase independent mechanism.  J.K. Sicklick, E.C. Munn, I. Hassan, J.C. Song, J.B. Matthews.  Society for Surgery of the Alimentary Tract, New Orleans, LA, May 1998.
  7. Can preoperative extent of chronic ulcerative colitis predict post operative pouch function?  I. Hassan, A.F. Horgan, S. Nivatvongs.  Society for Surgery of the Alimentary Tract, Orlando, FL, May 1999. 
  8. Curative potential of multimodality therapy for locally recurrent rectal cancer.  A.F. Horgan, H. Nelson, D.J. Sargent, L.L. Gunderson, I. Hassan, R.R. Dozois, American Society of Clinical Oncologists, Atlanta GA., May 1999.
  9. V-Y sliding flaps for repair of large bilateral perianal defects.  I. Hassan, S. Nivatvongs, A.F. Horgan.  Minnesota Surgical Society, Spring meeting, Minneapolis, MN, May 2000.
  10. Preoperative extent of chronic ulcerative colitis and postoperative outcome of ileal pouch anastomosis:  Does it matter?  I. Hassan, A.F. Horgan, S. Nivatvongs, D. Larson, J. Harrington.  Minnesota Surgical Society, Fall meeting, Duluth, MN, September 2001.
  11. Operative Management of retroperitoneal sarcomas: A reappraisal of an institutional experience.  I. Hassan, S.Z. Park, J.H. Donohue, D.M. Nagorney, C.D. Scheleck, D.M. Ilstrup.  Society for Surgical Oncology, Denver, CO, March 2002. 
  12. Abdominal apoplexy and Ehlers-Danlos syndrome (EDS) type IV: A case of a ruptured ileocolic artery aneurysm and a novel mutation of the type III procollagen gene.  T.E. Rasmussen, I. Hassan, U. Schwarze, D.E. Whiteman, P. Gloviczki.  20th World Congress of the International Union of Angiology, New York, NY, April 2002. 
  13. Outcome of patients undergoing ileal pouch anal anastomosis for left-sided chronic ulcerative colitis.  I. Hassan, A.F. Horgan, S. Nivatvongs, J. Harrington, D.R. Larson.  American Federation of Medical Research, Baltimore, MD, April 2002.
  14. Surgical management of abdominal tuberculosis.  I. Hassan, E. Barkalis, R.E. Thompson, F.G. Que.  Society for Surgery of the Alimentary Tract, San Francisco, CA, May 2002. 
  15. Quality of life and functional results in familial adenomatous polyposis patients after ileal pouch anal anastomosis or ileorectal anastomosis.  I. Hassan, H.K. Chua, S.F. Donnelly, B.G. Wolff, R.R. Dozois, D.R. Larson.  World Congress of Surgery.  Hong Kong, China, December 2002.
  16. Outcome of critically ill surgical patients requiring prolonged ICU stays.  I. Hassan, S.F. Donnelly, M.P. Bannon, D.C. Cullinane, H.J. Schiller, M.D. Sawyer, Y. Baerga-Varela, D.L. Anderson, S.P. Zietlow.  Journal of Investigative Medicine 2003;51:S369.  American Federation for Medical Research, Baltimore, MD, March 2003. 
  17. Intraabdominal Desmoplastic Small Round Cell Tumors:  A diagnostic and therapeutic challenge.  I. Hassan, R. Shyyan, J.H. Donohue, C.R. Moir, C.A.S. Arndt, A.G. Nascimento, F.G. Que.  American Society of Clinical Oncology, Chicago, IL, May 2003. 
  18. Quality of life and functional outcomes in critically ill surgical patients surviving prolonged ICU stays.  S.F. Donnelly, I. Hassan, M.P. Bannon, D.C. Cullinane, H.J. Schiller, M.D. Sawyer, Y. Baerga-Varela, D.L. Anderson, S.P. Zietlow.  Surgical Forum, American College of Surgeons, Chicago, IL,  October 2003.
  19. Clinical and pathologic spectrum of large bowel gastrointestinal stromal tumors.  I. Hassan, Y.N. You, R. Shyyan, J.H. Donohue, T.C. Smyrk, C.D. Schleck, E. Dozois.  First Annual International Congress, St. Marks, London, England, December 2003. 
  20. Clinical and pathologic spectrum of colon and rectal gastrointestinal stromal tumors.  Y.N. You, I. Hassan, R. Shyyan, J.H. Donohue, T.C. Smyrk, C.D. Schleck, E. Dozois.  Diseases Colon and Rectum 2004;2:B123.  American Society of Colon and Rectal Surgery, Dallas, TX, May 2004. 
  21. Surgical pathology and outcome of gastrointestinal stromal tumors of the stomach.  Y.N. You, I. Hassan, R. Shyyan, F.G. Que, T.C. Smyrk, J.H. Donohue.  Society for Surgery of the Alimentary Tract, Los Angeles, CA, May 2004.
  22. Predicting and stratifying risk of conversion for laparoscopic colon and rectal procedures using a prospective database and a multi variable analysis.  I. Hassan, R.R. Cima, D.W. Larson, E.J. Dozois, T.M. Young-Fadok, H. Nelson.  American Society of Colon and Rectal Surgeons, Philadelphia, PA, April 2005.
  23. Does timing of pelvic radiotherapy affect long term function and quality of life after coloanal anastomosis for distal rectal cancers?  I. Hassan, D.W. Larson, R.R. Cima, J.U. Gaw, H.K. Chua, D. Hahnloser, J. M. Stulak, M.M. O’Byrne, D.R. Larson, B.G. Wolff, J.H. Pemberton.  American Society of Colon and Rectal Surgeons, Philadelphia, PA, April 2005.
  24. Impact of pelvic radiotherapy on morbidity and durability of sphincter preservation after coloanal anastomosis for distal rectal cancers.  I. Hassan, D.W. Larson, B.G. Wolff, R.R. Cima, H.K. Chua, D.H. Hahnloser, M.M. O’Byrne, D.R. Larson, J.H. Pemberton.  American Society of Colon and Rectal Surgeons, Philadelphia, PA, April 2005.
  25. Clinical, pathologic and immunohistochemical characteristics of gastrointestinal stromal tumors of the colon and rectum: Implications for surgical management and adjuvant therapies.  I. Hassan, Y.N. You, E.J. Dozois, R. Shayyan, T.C. Smyrk, S.H. Okuno, J.H. Donohue.  Northwest Colorectal Society, Salishan, OR, August 2005. 
  26. Oncological outcomes and prognostic factors of surgically managed small bowel gastrointestinal stromal tumors (GIST).  I Hassan, Y.N. You, E.J. Dozois, T.C. Smyrk, S.H. Okuno, J.H. Donohue.  Minnesota Surgical Society, Deerwood, MN, September 2005.
  27. Expansion of a laparoscopic colon and rectal surgery practice does not adversely affect patient and practice outcomes.  I. Hassan, H. Nelson, R.R. Cima, D.W. Larson, E.J. Dozois, T.M. Young-Fadok.  American College of Surgeons, San Francisco, CA, October 2005. 
  28. Laparoscopic surgery for complicated and uncomplicated diverticulitis: Impact on conversion rates and patient outcomes.  I. Hassan, R.R. Cima, D.W. Larson, E.J. Dozois, D.R. Larson.  Society of American Gastrointestinal and Endoscopic Surgeons, Dallas, TX, April 2006.  10th World Congress of Endoscopic Surgery, Berlin, Germany, September 2006. 
  29. Impact of a new technology (Hand Assisted Laparoscopic Surgery, HALS) on a specialty colorectal surgical practice at a single institution.  R.R. Cima, I. Hassan, D.W. Larson, E.J. Dozois, J.H. Pemberton.  Society of American Gastrointestinal and Endoscopic Surgeons, Dallas, TX, April 2006. 
  30. Gastrointestinal stromal tumors (GIST) of the small bowel: High-risk pathologic features predict the need for adjuvant therapy.  I. Hassan, Y.N. You, E.J. Dozois, R. Shayyan, T.C. Smyrk, S.H. Okuno, J.H. Donohue.  Society for Surgeons of the Alimentary Tract, Los Angeles, CA, May 2006. 
  31. Colectomy and ileorectal anastomosis (IRA) for slow transit constipation (STC): Long-term functional and quality of life results.  I. Hassan, J.H. Pemberton, Y.N. You, D. Rath-Harvey, E.R. Drelichman, D.R. Larson.  Society for Surgeons of the Alimentary Tract, Los Angeles, CA, May 2006. 
  32. Vacuum-assisted closure of complex pilonidal disease: feasibility and effectiveness in five cases.  F.P. Bendewald, D.R. Metcalf, I. Hassan, R.R. Cima, Minnesota Surgical Society, Minneapolis, MN, May 2006.
  33. Tubulovillous adenoma of an ileostomy in familial adenomatous polyposis syndrome.  Report of a case and a review of a literature.  D.J. Rea, I. Hassan, J.T. Lewis, R.C. Robert.  Minnesota Surgical Society, Minneapolis, MN, May 2006.
  34. The accuracy and applicability of institutional predictive models in laparoscopic colorectal surgery.  One size does not fit all.  I. Hassan, R.R. Cima, D.W. Larson, E.J. Dozois, J.H. Pemberton, M.M. O’Byrne, D.R. Larson.  American Society of Colon and Rectal Surgeons, Seattle, WA, June 2006. 
  35. How well do we assess sexual function after colorectal surgery?  An analysis of 5 survey studies of 612 patients.  Y.N. You, I. Hassan, R.R. Cima, S.A. Barnes.  General Surgery Residents Forum, American Society of Colon and Rectal Surgeons, Seattle, WA, June 2006. 
  36. Does the number and duration of acute diverticulitis attacks affect risk of conversion in patients undergoing laparoscopic sigmoid resections?  I. Hassan, R.R. Cima, D.W. Larson, E.J. Dozois, D.R. Larson.  Annual Meeting of the Association of Coloproctology of Great Britain and Ireland, Newcastle, England, July 2006. 
  37. Complete response to palliative chemotherapy in locally advanced colon cancer:  A surgical management dilemma.  F.P. Bendewald, D.R. Metcalf, I. Hassan, S. Nivatvongs, R.R. Cima, Midwest Surgical Society, Mackinac Island, MI, August 2006. 
  38. Oncological outcomes and prognostic factors in surgically managed gastrointestinal stromal tumors:  Who will benefit the most from adjuvant therapy?  Y.N. You, I. Hassan, R. Shayyan, E.J. Dozois, T.C. Smyrk, S.H. Okuno, C.D. Schleck, D.O. Hodge, J.H. Donohue.  Society of Surgical Oncology, Washington, D.C., March 2007.
  39. An interactive method for teaching and verifying proficiency of intra-operative decision making.  C.L. Smith, R.G. Williams, S.F. Donnelly, I. Hassan, G.L. Dunnington.  Abstract Proceedings, School-wide Resident Research Forum, Southern Illinois University School of Medicine, Springfield, IL, April 2007. 
  40. Using an audience response system for teaching and evaluating resident intraoperative decision making.  C.L. Smith, R.G. Williams, S.F. Donnelly, I. Hassan, G.L. Dunnington.  Joint Meeting of the Association of Surgical Educators and the Association of Program Directors in Surgery; Thinking Out of the Box Forum.  Washington, D.C., April 2007.
  41. Analysis of factors impacting early health related quality of life of patients after elective abdominal colorectal surgery.  I. Hassan, R.R. Cima, A.K. Seltman, Y.N. You, D.W. Larson, E.J. Dozois, K. Thomsen, R. Qin, J.H. Pemberton.  Society for Surgeons of the Alimentary Tract, Washington, D.C., May 2007.
  42. Caring for a Patient with a stoma following colorectal surgery: Impact on caregiver quality of life.  A.K. Seltman, R.R. Cima, I. Hassan, Y.N. You, D.W. Larson, E.J. Dozois, R. Qin, K. Thomsen, J.H. Pemberton.  Society for Surgeons of the Alimentary Tract, Washington, D.C., May 2007.
  43. Factors influencing early health related quality of life of patients after elective abdominal colorectal surgery.  A.K. Seltman, I. Hassan, R.R. Cima, Y.N. You, D.W. Larson, E.J. Dozois, K. Thomsen, R. Qin, J.H. Pemberton.  Association of Surgeons of Great Britain and Ireland, Manchester, England, May 2007.
  44. Functional outcome and quality of life of patients after repair of large perianal skin defects for Paget’s and Bowen’s disease.  I. Hassan, H. Chua, S. Nivatvongs, C.D. Schleck, D.R. Larson.  Society for Surgeons of the Alimentary Tract, Washington, D.C., May 2007.
  45. Pre versus postoperative pelvic radiotherapy in patients undergoing abdominoperineal resections for rectal cancer: Does timing make a difference on long-term patient quality of life.  M.S. Kasparek, I. Hassan, R.R. Cima, Y.Q. You, R.E. Gullerud, D.W. Larson, E.J. Dozois.  Society for Surgeons of the Alimentary Tract, Washington, D.C., May 2007.
  46. Intra-operative decision making: Using an audience response system for resident teaching and evaluation.  C.L. Smith, R.G. Williams, S.F. Donnelly, I. Hassan, G.L. Dunnington.  Department of Surgery Resident Research Forum.  Southern Illinois University School of Medicine, Springfield, IL  May 2007.
  47. Determinants of Quality of Life in Patients at 6 weeks following elective colorectal surgery.  I. Hassan, A.K. Seltan, Y.N. You, R.R. Cima, D.W. Larson, E.J. Dozois, K. Thomsen, R. Qin, J.H. Pemberton.  ISOQOL Conference on Patient Reported Outcomes in Clinical Practice, Budapest, Hungary, June 2007.
  48. Prospective assessment of patient quality of life during the initial 6 weeks after elective colorectal surgery.  I. Hassan, R.R. Cima, Y. You, A.K. Saltman, D.W. Larson, E.J. Dozois, J.H. Pemberton.  American Society of Colon and Rectal Surgeons, St. Louis, MO, June 2007.
  49. Quality of life in patients with or without a stoma during the initial 6 weeks after elective colorectal surgery.  Y. You, R.R. Cima, A.K. Saltman, J.H. Pemberton, R. Qin, I. Hassan.  General Surgery Forum, American Society of Colon and Rectal Surgery, St. Louis, MO, June 2007.
  50. Effects of radiochemotherapy on quality of life in patients after abdominoperineal resection for rectal cancer.  M.S. Kasparek, R.R. Cima, Y.Q. You, R.E. Gullerud, D.W. Larson, I. Hassan.  The American Society of Colon and Rectal Surgeons, Boston, MA, June 2008
  51. Utilization of bovine acellular dermal matrix for complex abdominal wall reconstruction: A Preliminary Report.  D. Wietfeldt, J. Rakinic, I. Hassan.  American College of Surgeons, Illinois Chapter, Grafton, IL, May 2008.
  52. Medical students’ knowledge and attitudes concerning colorectal cancer screening.  D. Wietfeldt, M. Boehler, C. Schwind, Y. Becker, B. Lewis, J. Rakinic, I. Hassan.  American College of Surgeons, Illinois Chapter, Grafton, IL, May 2008.
  53. Quality of life after coloanal anastomosis and abdominoperineal resection for low rectal cancers.  Sphincter preservation vs quality of life.  M.S. Kasparek, I. Hassan, R.R. Cima, D.W. Larson, E.J. Dozois, R.E. Gullerud, D.R. Larson, J.H. Pemberton, B.G. Wolff.  Annual Scientific Meeting, American Society of Colon and Rectal Surgery, Hollywood, FL, May 2009.
  54. Knowledge and attitudes regarding colorectal cancer screening among medical students: A tale of two schools.  D. Wietfeldt, M. Boehler, C. Schwind, Y. Becker, B. Lewis, J. Rakinic, I. Hassan.  Annual Scientific Meeting, American Society of Colon and Rectal Surgery, Hollywood, FL, May 2009.
  55. Retrieval of translocated IUD.  D. Wietfeldt, J. Rakinic, I. Hassan.  Annual Meeting, Midwest Surgical Association, Lake Geneva, WI, August 2009.
  56. The end of the electronic divide: Health related information gathering practices in two specialty clinics.  D. Wietfeldt, A. Johnson, C. Veeder, M.Boehler, C. Schwind, J. Rakinic, I. Hassan.  Annual Meeting, Midwest Surgical Association, Lake Geneva, WI, August 2009.
  57. The “not so benign” impact of benign anorectal disease on patient quality of life.  D. Wietfeldt, V. Advani, M.Boehler, J. Rakinic, I. Hassan.  Annual Meeting, American Society of Colon and Rectal Surgeons, Minneapolis, MN, May 2010.
  58. Comparison of endoscopist administered conscious sedation versus anesthesiologist administered deep sedation for gastrointestinal endoscopy in an ambulatory surgery center.  What should be the standard of care?  V. Advani, D. Wietfeldt, M. Boehler, I. Hassan.  Annual Meeting, American Society of Gastrointestinal Endoscopists, New Orleans, LA, May 2010.
  59. Feasibility and efficacy of cross-linked porcine dermal collagen (PermacolTM) for repair of complex parastomal and ventral hernias after ileal conduit urinary diversion.  V. Advani, E.D. Wietfeldt, M. Thomas, T. Tarter, I. Hassan.  Second Abdominal Wall Reconstruction Conference, Washington, D.C., June 2010.
  60. The impact of diagnosis and symptoms on quality of life of patients with colorectal disease.  What matters most?  V. Advani, M. Thomas, J. Patton, M.L. Boehler, C.J. Schwind, J. Rakinic, I. Hassan.  6th Annual Academic Surgical Congress, Huntington Beach, CA, February 2011.
  61. Preoperative stoma marking: Does it impact post-operative quality of life?  L. McKenna, E. Taggart, J. Stoelting, T. Berry, C. Midiri, R. Mottar, G. Kirkbride, K. Gaehle, G. Forbes, I. Hassan.  Eighteenth National Evidence-Based Practice Conference, Iowa City, Iowa, April 2011.
  62.  The impact of preoperative stoma marking on post-operative quality of life: Early findings.  WOCN 2011 Annual Conference. New Orleans, LA, June 2011.

 
 
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