2017-02-01

Department: Acibadem University, Medical School, Department of General Surgery, Maslak Hospital, Division of Digestive Disease and Surgery

Education:
-Istanbul University, Cerrahpaşa Medical Faculty ( 2000-2006 )

-Istanbul University, Cerrahpaşa Medical Faculty Department of General Surgery ( 2006-2012)

-Cleveland Clinic Foundation, Digestive Disease Institute (2011-2016)

International Experience: Cleveland Clinic Foundation, Digestive Disease Institute (2011-2016)
Languages: English, Turkish

Special Areas of Interest:

General Surgery

Colorectal diseases

Cancers of the Esophagus, Stomach, Pancreas, Colon and Rectum

Peritoneal Carcinomatosis

Inflammatory Bowel Disease

Ulcerative Colitis

Crohn’s Disease

Pelvic floor disorders

Fecal Incontinence

Surgical Oncology

Hyperthermic intraperitoneal chemotherapy

Intraoperative radiotherapy

Cytoreductive Surgery

Laparoscopic and Robotic Surgery

Gastrointestinal Surgery

Colorectal Surgery

Continent ileostomy

Intestinal pouch surgery

Complex abdominopelvic surgery

ACADEMIC AND EDUCATIONAL ASSIGNMENTS

-Istanbul University, Cerrahpasa Medical Faculty, Academic year openning ceremony, Invited speaker: Effects of iloprost on lipid peroxidation and visual evoked potentials in cerebral hypoperfusion induced by right common carotid artery occlusion (2004)

-Istanbul University, Cerrahpaşa Medical Faculty Student Scientific Research Club, Representative of the Scientific Committee (2005)

-International Medical Students Research Congress, Chairman, Referee (2009)

-Istanbul University, National Science Day, Invited Speaker: Minimally invasive surgery for gastrointestinal disorders: Basic principles and laparoscopic interventions (2010)

-International Research Congress for Medical Students, Chairman, Invited Speaker: Natural orifice transluminal endoscopic surgery (2011)

-Turkish Republic, Ministry of Health, Bağcılar Research and Training Hospital, Experimental Research Course Invited Speaker: Ischemia-reperfusion models (2011)

-Turkish Surgical Research Congress, Member of the Organizing Committee (2011)

-Turkish Surgical Society Resident Committee, Secretary General, Representative of the Committee at the European Union of Medical Specialists (2009-2012)

-Gorgun E, Aytac E. Laparoscopy in recurrent Crohn’s disease. American Society of Colon and Rectal Surgeons Colon and Rectal Educational System Template (CREST). Educational videos (2013)

-Turkish National Surgery Congress, Chairman, Invited Speaker: Surgical educaltion in the United States (2014)

SCIENTIFIC JOURNAL ASSIGNMENTS

-Istanbul University, Cerrahpasa Medical Student Scientific Journal, Editorial Board (2008–)

-Journal of Gastroenterology Hepatology, Refree (2009-2013)

-Journal of Medicine and Medical Sciences, Refree (2010)

-Journal of Medical Case Reports, Refree (2010-2013)

-African Journal of Pharmacy and Pharmacological Research, Refree (2011)

-Turkish Journal of Trauma and Emergency Surgery, Redaction Committee (2011)

-World Journal of Anesthesiology, Editorial Board (2011–)

-Archives of Clinical and Experimental Surgery, Editorial Board (2012–)

-World Journal of Gastroenterology, Refree (2013-)

-Minerva Chirurgica, Refree (2013)

-Surgical Infections, Refree (2013-)

-World Journal of Gastrointestinal Endoscopy, Editorial Board (2013–)

-Techniques in Coloproctology, Refree (2014)
–Minimally Invasive Surgery, Refree (2014)
–World Journal of Emergency Surgery, Refree (2014)

-European Journal of Medical Research, Refree (2014)

-International Journal of Medical Robotics and Computer Assisted Surgery, Refree (2015)

-Expert Review of Cardiovascular Therapy (2015)

-Acta Tropica, Refree (2015)
– Expert Review of Cardiovascular Therapy, Refree (2015)
– Colorectal disease, Refree (2015)
– Journal of Neurological Science, Refree (2015)

-Associate Editor, Turkish Journal of Colon and Rectal Disease (2015-2016)

-Associate Editor, Turkish Journal of Gastroenterology (2015-2016)

AWARDS

-Eczacıbasi Medical Students Best Project Award: Effects of iloprost on visual evoked potentials and brain tissue oxidative stress after bilateral common carotid artery occlusion (2006)

-Istanbul University Scientific Research Unit “Succesfull Researcher of the Year” (2007)

-Istanbul University Scientific Research Unit “Succesfull Researcher of the Year” (2008)

-Turkish Society of Colon and Rectal Surgeons, National Meeting, Best Podium Presentation: Impact of systemic iloprost administration on oxidative damage in experimental colitis (2009)

-Turkish Society of Colon and Rectal Surgeons, National Meeting, Second Prize in Podium Presentation: Laparoscopic abdominoperineal resection (2009)

-National Hepatobiliary Surgery Congress Participation Award: Surgical treatment for hilar cholangiocarcinoma (2011)

-National Endocrine Surgery Congress, Second Prize: Parathroidectomy under local anesthesia for localized primary hyperparathyroidism (2011)

– Certificate of Excellance on Experimental Research, Turkish Republic Ministiry of Health Bagcilar Research and Training Hospital (2011)

-Best poster, 23rd Annual Fellow, Resident, and Medical Student Surgical Research Forum, the South Florida Chapter of the American College of Surgeons “Lymph Node Count is Associated with Decreased Cancer-Related Death in Stage I-II Colorectal Cancer Patients” (2012)

-Third Price, The Ohio Chapter of the American Collage of Surgeons Annual Fellow, Resident Research Forum, Poster Presentation “Does laparoscopy reduce the need for incidental splenic procedures during colorectal resections? An assessment from the NSQIP database” (2014)

– Turkish Society of Colon and Rectal Surgeons Long Term International Education Scholarship (2015-2016)

MEMBERSHIP ORGANIZATIONS

-Turkish Physiological Society (2004–)

-Turkish Society for Trauma and Emergency Surgery (2009–)

-Istanbul Medical Chamber (2009–)

-Kabatas High School Alumni Assocication (2010–)

-Turkish Society of Colon and Rectal Surgeons (2012–)

-Turkish Surgical Association (2014–)

-European Society of Coloproctology (2014–)

-American Society of Colon and Rectal Surgeons (2014-)

PUBLICATIONS

____Articles in English

Aytac E, Dietz DW, Ashburn J, Remzi FH. Long-Term Outcomes Following Continent Ileostomy Creation In Patients With Crohn’s Disease. Dis Colon Restum 2016 September (Article in press)

Benlice C, Gorgun E, Aytac E, Costedio M, Kessler H, Abbas MA, Remzi FH. Robotic, laparoscopic, and open colectomy: a case-matched comparison from the ACS-NSQIP. The International Journal of Medical Robotics and Computer Assisted Surgery 2016 Feb (article in press)

Benlice C, Baca B, Firidin SN, Muti A, Aytac E, Erguner I, Erdamar S, Senocak M, Turna H, Hamzaoglu I, Karahasanoglu T. Caseload volume is associated with better oncologic outcomes after laparoscopic resections for colorectal cancer.  Surg Laparosc Endosc Percutan Tech.  2016 Feb;26(1):49-53.

Ozben V, Aytac E, Liu X, Ozuner G. Does omental pedicle flap reduce anastomotic leak and septic complications after rectal cancer surgery? Int J Surg. 2016 Mar;27:53-7.

Rencuzogullari A, Gorgun, E, Costedio M, Aytac E, Kessler H, Abbas MA, Remzi FH. Case-Matched Comparison of Robotic Versus Laparoscopic Proctectomy for Inflammatory Bowel Disease Surg Laparosc Endosc Percutan Tech.  2016 Feb (article in press)

Aytac E, Ozuner G, Isik O, Gorgun E, Stocchi L. Management Of Colorectal Neoplasia During Pregnancy And In The Postpartum Period. World J Gastrointestinal Oncology 2016 (article in press)

Aydinli H, Aytac E, Remzi FH. Surgical Management of Complex Fistulizing Crohn’s Disease (Video abstract). Colorectal Disease 2016. (In press)

Rencuzogullari A, Ozuner G , Binboga S, Aytac E, Krishnamurthi V, Gorgun E. Colonic Diverticulosis and Diverticulitis in Renal Transplant Recipients: Management and Long-term Outcomes. American Surgeon 2016 (article in press)

Aytac E, Gorgun E, Costedio MM, Stocchi L, Remzi FH, Kessler H. Evaluation of Tumor Location as a Predictor for Lymph Node Metastasis in T1 Colorectal Cancer. Langenbeck’s Archives of Surgery. 2016 (article in press).

Application of solid Carbon dioxide as a novel hemostatic agent on a hepatectomy model in rats. Ozemir IA, Bilgic C,  Aytac E, Aslan S, Bayraktar B, Isbilen B, Zemheri E, Kösemetin D,  Yigitbasi R, Alimoglu O. Biomedical Research 2016; 27 (3): 860-866

Aytac E, Dietz DW, Ashburn J, Remzi FH. Long-Term Outcomes Following Continent Ileostomy Creation In Patients With Crohn’s Disease. Dis Colon Rectum,2016 (Provisional accept)

Ozben V, Aytac E, Liu X, Ozuner G. Does omental pedicle flap reduce anastomotic leak and septic complications after rectal cancer surgery? Int J Surg. 2016 Mar;27:53-7.

Rencuzogullari A, Gorgun, E, Costedio M, Aytac E, Kessler H, Abbas MA, Remzi FH. Case-Matched Comparison of Robotic Versus Laparoscopic Proctectomy for Inflammatory Bowel Disease Surg Laparosc Endosc Percutan Tech.  2016 Feb (article in press)

Atasoy D, Baca B, Ozben V, Bayraktar O, Agayeva A, Aytac E, Karahasanoglu T, Hamzaoglu I. Vascular High Ligation and Embryological Dissection in Laparoscopic Restorative Proctocolectomy for Ulcerative Colitis – A Video Vignette. Colorectal Dis. 2015: Article in press.

Benlice C, Baca B, Firidin SN, Muti A, Aytac E, Erguner I, Erdamar S, Senocak M, Turna H, Hamzaoglu I, Karahasanoglu T. Caseload volume is associated with better oncologic outcomes after laparoscopic resections for colorectal cancer.  Surg Laparosc Endosc Percutan Tech. 2015: Article in press.

Aytac E, Gorgun E, Erem HH, Abbas MA, Hull TL, Remzi FH. Long-term outcomes after circular stapled hemorrhoidopexy versus Ferguson hemorrhoidectomy. Techniques in Coloproctology. 2015: Article in press.

Gorgun E, Aytac E, Gurland B, Meagan M Costedio. Robotic versus laparoscopic colorectal surgery: a case matched study from a tertiary referral center. Surg Laparosc Endosc Percutan Tech. 2015: Article in press.

Isik O, Aytac E, Brainard J, Valente M, Abbas MA, Gorgun E. Perianal Paget’s Disease: Three Decades Experience of a Single Institution Int J Colorectal Dis. 2015: Article in press.

Remzi FH, Aytac E, Ashburn J, Gu J, Hull TL, Dietz DW, Stocchi L, Church JM, Shen B. Trans-Abdominal Redo Ileal Pouch Surgery For Failed Restorative Proctocolectomy Lessons Learned Over 500 Patients. Annals of Surgery. 2015: Article in press.

Ozuner G, Elagili F, Aytac E. Rectovaginal fistula secondary to an erosive pessary. Techniques in Coloproctology. 2015: Article in press.

Benlice C, Gorgun E, Aytac E, Ozuner G, Remzi FH. Mesh herniorrhaphy with simultaneous colorectal surgery: a case-matched study from the ACS-NSQIP.  Am J Surg. 2015: Article in press.

Gorgun E, Gezen FC, Aytac E, Stocchi L, Costedio MM, RemziFH. Laparoscopic versus open fecal diversion: does laparoscopy offer better outcomes in short-term? Tech Coloproctol. 2015: Article in press.

Aytac E, Erem HH, Remzi FH, Gorgun E. A Novel Data Collecting and Monitoring System for Health Status Measures in Patients Undergoing Lateral Internal Sphincterotomy: The Knowledge Program (TKP). Asian J Surg. 2015: Article in press

Ozuner G, Aytac E, Bennett A, Gorgun E. Colorectal squamous cell carcinoma: A rare tumor with poor prognosis. Int J Colorectal Dis. 2015 Jan;30(1):127-30.

Aytac E, Sulu B, Herald B, OMalley M, LaGuardia L, Remzi F, Kalady M, Burke C, Church J: Genotype defined cancer risk in juvenile polyposis syndrome. Br J Surg. 2015 Jan;102(1):114-8.

Aytac E, Ozuner G, Isik O, Gorgun E, Remzi F: Surgical management of patients with complicated ulcerative colitis during pregnancy: Maternal and fetal outcomes. J Crohns and Colitis. 2015 Jan;9(1):82-5.

Aytac E, Remzi FH. (Letter to the editor) Restorative Proctocolectomy in Pediatric Patients: Individualized Decision Making in the Treatment. J Am Coll Surg. 2014 Nov;219(5):1098-9.

Isik O, Aytac E, Ashburn J, Ozuner G, Remzi FH, Costedio MM, Gorgun E. Does laparoscopy reduce the need for incidental splenic procedures during colorectal resections? An assessment from the NSQIP database. Surg Endosc. 2014: Article in press.

Aytac E, Stocchi L, DeLong J, Costedio MM, Gorgun E, Kessler H, Remzi FH. Impact of previous midline laparotomy on the outcomes of laparoscopic intestinal resections: a case-matched study. Surg Endosc. 2014: Article in press.

Aytac E, Ashburn J, Dietz DW. Is there still a role for continent ileostomy in the surgical treatment of inflammatory bowel disease?  Inflammatory Bowel Disease 2014 Dec;20(12):2519-25.

Alturfan AA, Aytaç E, Emekli-Alturfan E, Yarat A, Sarıbeyoğlu K, Pekmezci S, Seymen O. Serum total sialic Acid as a novel complementary candidate marker of hepatic damage in obstructive jaundice. Ann Clin Lab Sci. 2014 Winter; 44(1):56-61.

Gezen FC, Aytac E, Costedio MM, Vogel JD, Gorgun E. Hand-assisted versus straight laparoscopic versus open proctosigmoidectomy for rectal and sigmoid cancer: A case-matched study of one hundred patients.  Permenante Journal 2014 Article in press.

Sulu B, Gorgun E, Aytac E, Costedio MM, Kiran RP, Remzi FH. Comparison of Hospital Cost for Single Port and Conventional Laparoscopic Colorectal Resection: A Case-Matched Study. Tech Coloproctol. 2014 Sep;18(9):835-9.

Aytac E, Turina M, Gorgun IE, Stocchi L, Remzi FH, Costedio MM. Single-Port Laparoscopy Is Equally Safe and Effective as Conventional Laparoscopy for Colorectal Resections in Obese Patients.  Surg Endosc. 2014: Article in press.

Aytac E, Stocchi L, Gorgun IE, Ozuner G.  Risk of recurrence and long term outcomes after colonic diverticular bleeding. Int J Colorectal Dis. 2014 Mar;29(3):373-8.

Rosselli Londono JM, Aytac E, Gorgun E.Turnbull–cutait abdomıinoperineal pull-through: a safe approach for recurrent sacrococcygeal teratoma complicated by rectovaginal fistula. Tech Coloproctol. 2014 Aug;18(8):761-3.

Cancan G, Teksoz S, Aytac E, Arikan AE, Erman H, Uzun H, Ozden F, Aydin O, Ozcan M. Effects of Ankaferd on Anastomotic Healing of Colon. J Invest Surg. 2014 Feb;27(1):1-6.

Aytac E, Ozdemir Y, Ozuner G. Long term outcomes of neuroendocrine carcinomas of the colon, rectum, and anal canal. J Visc Surg. 2014 Feb;151(1):3-7.

Ozdemir Y, Kiran RP, Erem HH, Aytac E, Gorgun IE, Magnuson, Remzi FH. Functional Outcomes and Complications after Restorative Proctocolectomy and Ileal Pouch-Anal Anastomosis in the Pediatric Population. J Am Coll Surg. 2014 Mar;218(3):328-35.

Aytac E, Stocchi L, Ozdemir Y, Kiran RP. Factors affecting morbidity after conversion of laparoscopic colorectal resections. Br J Surg. 2013 Nov;100(12):1641-8.

Gorgun IE, Aytac E, Costedio MM, Erem HH, Stocchi L.Single port transanal endoscopic surgery: A practical tool in surgeons’ toybox. Surg Endosc. 2014 Mar;28(3):1034-8

Aytac E, Rosselli Londono J M,  Erem H H, Vogel J, Costedio M. Impact of stress dose steroid administration on the outcomes of restorative proctocolectomy with IPAA in patients with ulcerative colitis. Dis Colon Rectum. 2013 Nov;56(11):1253-8.

Gorgun E, Aytac E, Manilich E, Church JM, Remzi FH. Intraoperative colonoscopy does not worsen the outcomes of laparoscopic colorectal surgery: a case-matched study.  Surg Endosc. 2013 Oct;27(10):3572-6.

Aytac E, Stocchi L, Williams R, Remzi FH, Costedio MM. Single port laparoscopic fecal diversion: More than cosmetic benefits? Surg Laparosc Endosc Percutan Tech. 2014 Aug;24(4):e133-6

Ozdemir Y, Kalady MF, Aytac E, Kiran RP, Erem HH, Church JM, Remzi FH. Anal Transitional Zone Neoplasia in Patients with Familial Adenomatous Polyposis after Restorative Proctocolectomy and Ileal Pouch Anal Anastomosis: Incidence, Management, Oncologic and Functional Outcomes.  Dis Colon Rectum. 2013 Jul;56(7):808-14.

Aytac E, Lavery IC, Kalady MF, Kiran RK. Impact of obesity on operation performed, complications and long term outcomes in terms of restoration of intestınal continuity for patients with mid and low rectal cancer. Dis Colon Rectum. 2013 Jun;56(6):689-97.

Aytac E, Buyuktas D, Baysal B, Atar M, Yildiz M, Baca B, Karahasanoglu T, Celik A, Seymen HO, Hamzaoglu I. Visual evoked potentials and pulse wave velocity in inflammatory bowel disease. Turk J Gastroentorol: 2013: Article in press.

Pekmezci S, Saribeyoglu K, Aytac E, Serdar B. “Hepaticojejunostomy with the “Hand Fan” technique: Technical report”. Hepatobiliary Pancreat Dis Int. 2013 Apr;12(2):210-4.

Seymen P, Aytac E, Esen F, Tel C, Demir F, Genc H, Uzun H, Oz B, Altug T, Seymen HO.Darbepoetin alpha ameliorates neuronal damage in a rat model of acute ethanol intoxication. Int J Neurosci. 2013 Feb;123(2):99-103.

Erguner I, Aytac E, Boler DE, Atalar B, Baca B, Karahasanoglu T, Hamzaoglu I, Uras C. What we have gained by performing robotic rectal resection? Evaluation of 64 consecutive patients underwent laparoscopic or robotic low anterior resection for rectal adenocarcinoma. Surg Laparosc Endosc Percutan Tech. 2013 Jun;23(3):316-9.

Sulu B, Aytac E, Stocchi L, Vogel JD, Kiran RP. The minimally invasive approach is associated with reduced perioperative thromboembolic and bleeding complications for patients on chronic oral anticoagulant therapy undergoing colorectal surgery. Surg Endosc. 2013 Apr;27(4):1339-45.

Erguner I, Aytac E, Baca B, Hamzaoglu I, Karahasanoglu T. Totally laparoscopic approach for the treatment of right colon cancer: A technical critique. Asian J Surg 2013 Apr;36(2):58-63.

Ertem M, Aytac E, Ozveri E, Vardareli E. Single port assisted trans-anal local excision. Turkish Journal of Diseases of the Colon and Rectum, 2013;23(1):48-51.

El-Gazzaz G, Erem HH, Aytac E, Salcedo L, Stocchi L, Kiran RP. Risk of infection and hernia recurrence for patients undergoing ventral hernia repair with non absorbable or biological mesh during open bowel procedures. Tech Coloproctol. 2013 Jun;17(3):315-20.

Ertem M, Aytac E, Gok H. Single port totally extraperitoneal (STEP) hernia repair: Improving the benefits of one day surgery setting Hernia 2012 Dec;16(6):737-8.

Teksoz S, Aytac E. Taurolidine use as a scolicial agent: We need different methodologies (Letter to the editor) Acta Parasitologica Turcica 2012;36(2):131-2.

Costedio M, Aytac E, Gorgun E, Kiran RP, Remzi FH. Reduced Port Versus Conventional Laparoscopic Total Proctocolectomy and Ileal J Pouch-Anal Anastomosis. Surgical Endoscopy: 2012 Dec;26(12):3495-9.

Aytac E, Stocchi L, Remzi FH, Kiran RP. Is laparoscopic surgery for recurrent Crohn’s disease beneficial in patients with previous primary resection through midline laparotomy? A case-matched study. Surgical Endoscopy: 2012 Dec;26(12):3552-6.

Aydin I, Teksoz S, Aytac E, Polat E, Ramazanoglu R, Ozcan M. Scolicidal activity of taurolidine for the treatment of hydatid disease: An experimental study. Bratislava Medical Journal: 2012;113(11):648-51.

Aytac E, Teksoz S, Saygili S, Tortum OB, Yavuz N, Sozer V, Goksel S, Uzun H, Seymen HO, Goksoy E. Iloprost reduces colitis induced oxidative stress: An experimental study in rats. Turk J Gastroentorol: 2012: Article in press

Ertem M, Aytac E, Karaduman Z. Cystic hydatid disease of the gallbladder. Turk J Gastroentorol: 2011: Article in press

Aytac E, Durgun AV, Buyuktas D, Erdamar S,  Ongoren S. Poland’s Syndrome associated with pernicious anemia and gastric dysplasia. Turk J Hematol: 2012;29: 441-444.

Saribeyoglu K, Aytac E, Pekmezci S, Saygili S, Uzun H, Ozbay G, Aydin S, Seymen HO.Effects of clinoptilolite treatment on oxidative stress after partial hepatectomy in rats. Asian J Surg 2011 Oct;34(4):153-7.

Aydogan F, Ozben V, Aytac E, Yilmaz MH, Cercel A, Celik V. Excision of nonpalpable breast cancer with indocyanine green fluorescence- guided occult lesion localization. Breast Care 2012 Feb;7(1):48-51.

Karahasanoglu T, Hamzaoglu I, Baca B , Aytac E, Erguner I,  Uras C. Robotic surgery for rectal cancer: Initial experience from 30 consecutive patients. J Gastrointest Surg 2012 Feb;16(2):401-7

Kaya H, Erguner I, Aytac E, Alhan C, Karahasanoglu T. A rare complication of a prosthetic vascular graft: Sigmoid colon perforation after migration Chirurgia 2012 December;25(6):431-2.

Karatas A, Ozben V, Aytac E, Karaca FC, Salihoglu Z, Uzun H, Erdamar S, Ulualp K. Alternative Sutureless Repair Technique with Amelogenin for Duodenal Perforation. Acta Chir Belg 2012 Mar-Apr;112(2):121-5.

Karahasanoglu T, Hamzaoglu I, Baca B , Aytac E, Erenler I, Erdamar S. Evaluation of diverting ileostomy in laparoscopic low anterior resection for rectal cancer. Asian J Surg 2011: Apr;34(2):63-8.

Karahasanoglu T, Hamzaoglu I, Aytac E, Baca B. Transvaginal assited totally laparoscopic single port right colectomy. Journal of Laparoendoscopic & Advanced Surgical Techniques 2011;21:255-7.

Aydin S, Aytac E, Uzun H, Altug T, Mansur B, Saygili S, Buyukpinarbasili N, Sariyar M. Effects of ganoderma lucidum on obstructive jaundice induced oxidative stress: An experimental study. Asian J Surg 2010;33:173-80.

Teksoz S, Tasci Y, Aytac E, Arikan AE, Aydin O, Ozcan M. Anterior abdominal wall located recurring dermatofibrosarcoma protuberans: a rare soft tissue tumor. Archives of the Balkan Medical Union. (47), 4, 2012.

Aytac E, Hamzaoglu I, Karahasanoglu T, Baca B, Karatas A, Kahya AS. Transumbilical totally laparoscopic single port sigmoidectomy for an elderly patient with sigmoid volvulus. Turkish Journal of Diseases of the Colon and Rectum, 2012 22 – 2 : 65-69.

Pekmezci S, Aytac E, Saribeyoglu, Harmanci AK, Seyahi N, Ataman R, Tasci H, Sariyar M Incidentally identification of renal cell carcinoma in the kidney prepared for cadaveric transplantation. Organs, Tissues & Cells (15), 39-41, 2012.

Karahasanoglu T, Hamzaoglu I, Baca B, Aytac E. Hybrid laparo-endoscopic single port transperitoneal right adrenalectomy. Minim Invasive Ther Allied Technol 2012 Jan;21(1):59-62.

Karahasanoglu T, Hamzaoglu I, Baca B, Aytac E, Kirbiyik E. The impact of increased body mass index on laparoscopic surgery for rectal cancer. Eur Surg Res 2011; 46: 487-490.

Tahan G, Aytac E, Aytekin H, Gunduz F, Dogusoy G, Aydin S, Tahan V, Uzun H. Vitamin E has a dual effect of anti-inflammatory and antioxidant activities in acetic acid-induced colitis in rats. Can J Surg 2011: Oct;54(5):333-8.

Pekmezci S, Saribeyoglu K, Aytac E, Arvas M, Demirkiran F, Ozguroglu M. Surgery for isolated liver metastasis of ovarian cancer. Asian J Surg 2010;33:83-88.

Ayan F, Aytac E, Saygili S, Genc H, Karaca C, Bayrak I, Uzun H, Salihoglu Z, Erdamar S, Sozer V. Altug T, Seymen P, Seymen HO. Effects of lycopene on oxidative stress and remnant liver histology after partial hepatectomy in rats. Turk J Gastroentorol. 2011: Aug;22(4):408-13.

Aytac E, Seymen P, Saygılı S, Genc H, Uzun H, Ozbay G, Altuğ T, Seymen HO, Sarıyar M. Evaluation of oxidative stress in experimental acetaminophen induced hepatotoxicity: Effects of darbepoetin administration. Nobel Medicus. 2010;6: 56-61.

Teksoz S, Aytac E, Yavuz N, Tortum OB, Ozcan M, Erguney S, Bukey Y. Comparison of a vessel sealing system with a conventional technique in hemorrhoidectomy. Balkan Med J 2011; 28: 189-192

Karatas A, Kucuk GO, Aytac E, Hamzaoglu I. Recurrent bleeding of parastomal varices: Case report. Turkish Journal of Gastroentorology. 2011: Jun;22(3):229-32.

Uras C, Aytac E, Aydogan F. Videoendoscopic single port axillary dissection. J Minim Access Surg. 2011 Oct;7(4):246-8.

Aytac E, Salihoglu Z, Demirkaya A, Baca B, Kaynak K, Karahasanoglu T, Hamzaoglu I. Difficult intubation due to chronic hiccup: a case report. Bakırköy Medical Journal 2011;7:39-40.

Hamzaoglu I, Karahasanoglu T, Aytac E, Karatas A, Baca B. Transumbilical totally laparoscopic Single port Nissen Fundoplication: A new method of liver retraction. Istanbul Technique. J Gastrointest Surg 2010;14:1035-1039.

Karagoz S, Yuceyar S, Aytac E, Bayraktar O, Erenler I, Ustun H, Uzun H, Erturk S. Comparison of classical surgery and sutureless repair with Dura Seal or fibrin glue for duodenal perforation in rats. Turkish Journal of Trauma and Emergency Surgery. 2010; 17:9-13.

Seymen P, Selamet U, Aytac E, Trabulus S, Seymen HO. Evaluation of visual evoked potentials in chronic renal failure patients with different treatment modalities. J Nephrol.2010; 18:705-710.

Aydogan F, Aytac E, Durak H. A rare cause of palpable mass located at the suprapubic area: Abscess of omphalomesenteric duct cyst. Turkish Journal of Gastroentorology. 2010;21:195-196.

Hamzaoglu I, Karahasanoglu T, Baca B, Karatas A, Aytac E, Kahya AS. Single port laparoscopic sphincter saving mesorectal excision for rectal cancer: Report of the first four human cases. Archives of Surgery 2011; 146:75-81.

Karatas A, Kocael A, Aytac E, Gokcal F, Salihoglu Z, Uzun H, Paksoy M. Amelogenin (an extracellular matrix protein) application on ischemic colon anastomosis in rats. Turkish Journal of Trauma and Emergency Surgery  2010;16:487-490.

Salihoglu Z, Yildirim M, Demiroluk S, Kaya G, Karatas A, Ertem M, Aytac E. Evaluation of intravenous paracetamol administration on postoperative pain and recovery characteristics in patients undergoing laparoscopic cholecystectomy. Surg Lap Endosc Percut Tech. 2009;19:321–323.

Seymen P, Aytac E, Bolukbasi F, Demir F, Genc H, Uzun H, Altug T, Seymen HO. Effects of darbepoetin alpha on brain tissue oxidative stres in experimental ethanol administration. Balkan Medical Journal 2009;26:95-99.

Ozben V, Ayan F, Aytac E, Karatas A, Tortum OB, Bal K, Paksoy M, Salihoglu Z.  Our experience in mallory-weiss syndrome: report of three cases. Internet J Surg. 2009  20:2.

Carkman S, Ozben V, Aytac E. Caecum perforation due to tuberculosis in a renal transplant recipient: a case report. J Med Case Rep. 2009 18;3:132.

Dedeoglu BD, Aytac E, Suzer O, Balci H, Uzun H, Seymen P, Seymen HO. Donor Heart Preservation with Iloprost Supplemented St Thomas Hospital Cardioplegic Solution in Isolated Rat Hearts. Prostaglandins Leukot Essent Fatty Acids. 2008;78(6):415–21.

Baca B, Aytac E, Apaydin BB, Onur E, Kilic IE, Erdamar S, Uslu E, Uzun H, Koksal S. Mechanical bowel preparation with different solutions in rats with selective left colonic ischemia and reperfusion injury. Am J Surg. 2008; 196(3):418-24.

Aytac E, Seymen P, Dikmen G, Uzun H, Seymen HO. Iloprost pretreatment before unilateral nephrectomy: an experimental study in rats. Asian J Surg. 2008 Apr; 31(2):69-74.

Alturfan AA, Zengin E, Dariyerli N, Alturfan EE, Gumustas MK, Aytac E, Aslan M, Balkis N, Aksu A, Yigit G, Uslu E, Kokoglu E. Investigation of Zinc and Copper Levels in Methimazole-Induced Hypothyroidism: Relation with the Oxidant-Antioxidant Status. Folia biologica (Praha) 53, 183-188 (2007).

Bohloli M, Uzun H, Aytac E, Toklu AS,  Paksoy M,  Durak H, Ipek T.Hyperbaric oxygen therapy after partial hepatectomy: an Experimental study about oxidative stress in rats. Scand J Lab Anim Sci. 2007 Vol. 34 No. 2:131:140.

Yildiz M, Masatlioglu S, Seymen P, Aytac E, Seymen O, Sahin B. The carotid – femoral (aortic) pulse wave velocity as a marker of arterial stiffness in familial Mediterranean fever. Can J Cardiol. 2006 Nov:22(13):1127-31.

Alturfan AA, Alturfan EE, Dariyerli N, Zengin E, Aytac E, Yigit G, Kokoglu E Investigation of tissue factor and other hemostatic profiles in experimental hypothyroidism. Endocrine. 2006 Aug;30(1):63-7.

Aytac E, Seymen HO, Uzun H, Dikmen G, Altug T. Effects of iloprost on visual evoked potetials and brain tissue oxidative stres after bilateral carotid artery occlusion. Prostaglandins, Leukot Essent Fatty Acids 74 (2006) 373–378.

Aytac E, Seymen HO, Sozer V, Ozdemir M, Koc N, Gumustas MK, Altug T. Effects of Iloprost on Lipid Peroxidation Parameters in Cerebral Hypoperfusion Model Induced by Right Common Carotid Artery Occlusion. 5th European Congress of Oto-Rhino-Laryngology, Head and Neck Surgery; Rodos, Greece, September 11-16.  International proceedings, 2004;445-450.

Camcioglu Y, Aytac E. Immunopathogenesis of Sepsis: New insights. Turkish Journal of Immunology Dec 2003; 8; 27–38.

____Articles in Turkish

Sarıbeyoğlu K, Baca B, Kol E, Karabulut K, Aytaç E, Çarkman S, Karataş A, Aydoğan F, Zengin K, Pekmezci S. Laparoscopic duodenoraphy for duodenal ulcer perforations. Bakırköy Medical Journal 2007;3:134–138.

Karatas A, Aytac E, Ulualp K, Ersan Y. Microinvasive in situ ductal breast carcinoma in man: Case report. Breast Health Journal. 2009;5:168-169.

Özben V, Çarkman S, Aytaç E, Salihoğlu Z. Laparoscopic cholecystectomy in a patient with situs inversus totalisi. Firat Medical Journal. 2010;15(1): 67-69

Aytaç E, Yıldız M, Seymen P, Seymen HO. Letter to editor. Turkey Clinics J Cardiovasc Sci 2009;21:509-510.

Teksöz S, Özgültekin R, Aytac E, Özcan M. Schwannoma in the right adrenal gland. Diyalogs on Endocrinology 2010;7: 84-85.

Camcıoğlu Y, Aytaç E. Immunopathogesis of sepsis. Klimik Journal 2007; 20:2.

Durgun AV, Aytaç E, Perek A. Cholecystostomy for ksantogranulomous cholecystitis. Case report Firat Medical Journal. 2012; 17(3): 170-172.

Özyeğin A, Bükey Y, Teksöz S, Aytaç E, Aksoy F. Ekstra adrenal located giant feochromositoma. Dialogs in Endocrinology 2012, 9(1): 31-33.

____Translations to Turkish Language

Andrology Bulletin: 1: 50-52; Editor: Erkut Atar, Gene therapy and reproductive medicine. Stribley JM, Rehman KS, Niu H, Christman GM Fertil and Steril 2002 Apr; 77 (4): 645–657.

Case files Physiology. By: Toy, Eugene C. Weisbrodt, Norman W. Dubinsky, William P. Walters, Edgar T. (Terry) Harms, Konrad P. O’Neil, RogerG. ISBN:0071445757 DOI: 10.1036/0071445757 Copyright:2006 Edition:1 Product Line: McGraw-Hill Medical McGraw-Hill Medical Related Titles by Category, Editor: H. Oktay Seymen. Gastrointestinal System Physiology (2007)

Red Cross (ICRC) “War Surgery- Volume II”, Neck Injuires (2014)

____Books:

General Surgery Education Report 2010. Authors: Terzi C, Eryılmaz M, Erel S, Mutlu F, Aytac E, Gülkesen H. Turkish Surgical Association (2010).

Difficult Polypectomy 2015. Aytac E, Gorgun E.Jaypee Brothers Medical Publishers (P) Ltd.) (In press)

Stomas of the Small and Large Intestine. Aytac E, Magnuson D, Remzi FH. Elsevier. (In press)

The Importance of Surgical Care and Quality Improvement Projects in Venous Thromboembolism. Erem HH, Aytac Thrombosis and Embolism: From Research to Clinical Practice. Ed Islam S. Springer (In press)

Aytac E, Remzi Reoperative transabdominal surgery for ileoanal pouch salvage. Seminars in Colon & Rectal Surgery 2015 (in Press)

PRESENTATIONS AT INTERNATIONAL CONGRESSES (Posters/Podiums)

Aytac E, Seymen HO, Sozer V, Ozdemir M, Koc N, Gumustas MK, Altug T. Effects of Iloprost on Lipid Peroxidation Parameters in Cerebral Hypoperfusion Model Induced by Right Common Carotid Artery Occlusion. 5th European Congress of Oto-Rhino-Laryngology, Head and Neck Surgery. Rodos, Greece, September 11-16, 2004 . Abstract book.112-123.

Aytac E, Seymen H.O, Dikmen G, Altug T. The effects of iloprost on visual evoked potentials in bilateral carotid occluded rats. Experimental Biology 2005 and XXXV International Congress of Physiological Sciences March 31-April 6 2005. Abstracts. The FASEB Journal, March 7, Volume 19, Number 5, pp: A1256, San Diego-USA, 2005.

Aytac E, Seymen P, Uzun H, Dikmen G, Altug T, Seymen HO. Oxidant/ antioxidant status after unilateral nephrectomy. 40th Congress of European Society for Surgical Research (ESSR), May 2005, Abstract book; 67-68, Konya.

Aytac E, Seymen HO, Altug T. Visual evoked potentials in bilateral carotid occluded rats. 40th Congress of European Society for Surgical Research (ESSR), May 2005, Abstract book; 70-71, Konya.

Koc N, Aytac E, Tan I, Atukeren P, Yeter OT, Gumustas MK, Altug T, Seymen HO. Lipid Peroxidation and Visual Evoked Potentials of Rats Exposed to Cigarette Smoke in Hypobaric, Hyperbaric and Normobaric Conditions. Experimental Biology 2006 April 1-5 2006. Abstracts. The FASEB Journal, April 7, Volume 19, Number 5, pp: A1256, San Francisco-USA, 2006.

Koc N, Aytac E, Uzun H, Dikmen G, Yigit G, Seymen HO. Effects of Cigarette Smoking on Lipid and Protein Methabolism in Hypobaric, Hyperbaric and Normobaric Conditions. Experimental Biology 2006 April 1-5 2006. Abstracts. The FASEB Journal, April 7, Volume 19, Number 5, pp: A1256, San Francisco-USA, 2006.

Dariyerli N, Alturfan AA, Gumustas MK, Aytac E, Zengin E, Aslan M, Kokoglu. Protein oxidation and antioxiant status in methimazole induced hypothyroid rats. FEBS İstanbul/Turkey Congress June 2006

Seymen HO, Seymen P, Aytaç E, Demir F, Bolukbasi, Saygili S, Ozucer B, Dikmen G, Genc H, Altug T, Uzun H. Darbepoetin treatment after ethanol toxicity: an experimental study in rats. Experimental Biology 2007, Washington, DC April 28-May 2, 2007. Abstracts Part II, Vol.21, No.6:1278, 2007.

Aytac E, Seymen P, Saygili S, Genc H, Uzun H, Ozbay G, Altug T, Seymen HO, Sariyar M. Darbepoetin treatment against acetaminophen induced hepatotoxicity: An experimental study. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Karagoz Avci S, Yuceyar S, Aytac E, Bayraktar O, Erenler I, Ustun H, Uzun H, Erturk S. Comparison of the classical surgical repair with duraseal or fibrin glue for duodenal perforation in rats. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Ayan F, Teksoz S, Aytac E, Tasci I, Goksel S, Paksoy M, Salihoglu Z, Ersan Y. Surgical therapy for esophagus cancer: A single center experience. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Saribeyoglu K, Aytac E, Pekmezci S, Saygili S, Aydin S, Uzun H, Seymen HO. Effects of clinoptilolite treatment after partial hepatectomy on oxidative stress in rats. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Aytac E, Saribeyoglu K, Pekmezci S, Saygili S, Atar M, Alturfan A, Seymen HO. Visual evoked potentials in obstructive jaundice: An experimental study in rats. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Aytac E, Salihoglu Z, Demirkaya A, Baca B, Kaynak K, Karahasanoglu T, Hamzaoglu I. Difficult intubation due to chronical hiccup: A case report. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Ayan F, Aytac E, Ozben V, Sahin Kurtul I, Gurses B, Ertem M. Tumor seeding in the abdominal wall after percutaneus needle biopsy for liver metastasis of colonic adenocarcinoma. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists. October 08-11, 2008, Istanbul/Turkiye.

Karatas A, Aytac E, Simsek O, Pekmezci S, Ersan Y. Cecum, ascending colon and transvers colon volvulus with mesenterium commune in a diabetic young male patient. Biennial World Congress of The International College of Surgeons. December 3 – 6, 2008, Vienna, Austria.

Saribeyoglu K, Baca B, Aytac E, Ozben V, Mizrakli T, Carkman S, Karatas A, Aydogan F, Pekmezci S. Laparoscopic diagnosis and treatment of abdominal stab injuries. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Pekmezci S, Saribeyoglu K, Korman U, Aytac E, Tasci H. Selective laparoscopy for post-operative adhesive small bowel obstruction: enteroclysis-guided laparoscopic adhesiolysis in chronic recurrent, and direct laparoscopic adhesiolysis in acute bowel obstruction. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Baca B, Saribeyoglu K, Aytac E, Aydogan F, Carkman S, Karatas A, Teksoz S, Tasci Y, Karaca FC, Yavuz N, Pekmezci S. Laparoscopic appendectomy: Our experience in 1075 cases. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/ Turkey.

Aytac E, Saribeyoglu K, Baca B, Ozben V, Mizrakli T, Yavuz N, Pekmezci S. Laparoscopic management of peptic ulcer perforation. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/ Turkey.

Pekmezci S, Saribeyoglu K, Baca B, Aytac E, Kaynak K, Mizrakli T, Ozben V. Thoracoscopy in the diagnosis and treatment of thoracoabdominal stab injuries. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Bayraktar B, Bayraktar O, Aytac E, Erenler I, Tortum OB. Palliative esophageal stent application for malign esophagus stenosis. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Bayraktar B, Bayraktar O, Erenler I, Aytac E, Tortum OB. Metallic stent application for the treatment of acute mechanical intestinal obstruction. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Aytac E, Saribeyoglu K, Atasoy D, Senturk H, Pekmezci S. Endoscopic balloon dilatation for pyloric stenosis after caustic injury: A case report. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Saribeyoglu K, Aytac E, Atasoy D, Mizrakli T, Pekmezci S. Biliary stent poisoning: Ileus due to migrated multiple biliary stents. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Karatas A, Kocael A, Aytac E, Gokcal F, Salihoglu Z, Uzun H, Paksoy M. Effects of amelogenin treatment on normal and ischemic colon anastomosis in rats. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Ozben V, Mizrakli T, Aytaç E, Saribeyoglu K ,Cetinkale O, Pekmezci S. Our five-year experience in Fournier’s gangrene. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Ozben V, Aytaç E, Carkman S. Our clinical experience in internal hernias: Report of seventeen patients. The 10th European Congress of Trauma & Emergency Surgery, 13-17 May 2009, Antalya/Turkey.

Aydin S, Aytac E, Uzun H, Altug T, Mansur B, Saygili S, Tepgec F, Buyukpinarbasili N, Sariyar M. Effects of Ganoderma Lucidum on oxidative stres and DNA damage in experimental obstructive jaundice. 34th FEBS Congres, 4-9 July 2009, Prague/ Czech Republic.

Hamzaoglu I, Karahasanoglu T, Baca B, Karatas A, Aytac E, Kahya AS. Single-port laparoscopic sphincter saving mesorectal excision for rectal cancer: report of the first four human cases. 3rd joint ESGE and EAES European Workshop on NOTES 24 – 26 September 2009. Barcelona, Spain.

Hamzaoglu I, Karahasanoglu T, Baca B, Karatas A, Aytac E, Kahya AS. Single port laparoscopic treatment of sigmoid volvulus. 3rd joint ESGE and EAES European Workshop on NOTES 24 – 26 September 2009. Barcelona, Spain.

Hafize U, Erman A, Gulgun T, Veysel T, Remise G, Omur T, Erol A. Melatonin prevents oxidative DNA damage in non-alcoholic steatohepatitis: an experimental study. 1st Congress of Fatty Liver and Metabolic Syndrome 12–14 November 2009. Budapest, Hungary.

Aytac E, Karahasanoglu T, Hamzaoglu I, Baca B. Is body mass index a factor affecting preoperative and early postoperative complications in laparoscopic rectal cancer surgery? 12th World Congress of Endoscopic Surgery. 14-17 April 2010. National Harbor, Maryland, USA.

Aytac E, Demiryas S, Mizrakli T, Agayeva A, Ayan F, Paksoy M, Ertem M. Assesment of postoperative outcomes after laparoscopic total extraperitoneal versus Lichtenstein repair for inguinal hernia. 32nd International Congress of the European Hernia Society 6-9 October 2010. Istanbul, Turkey.

Aydogan F, Ozben V, Aytac E, Yilmaz MH, Cercel A, Celik V. Excision of nonpalpable breast cancer with indocyanine green fluorescence- guided occult lesion localization. Breast cancer coordinated care Ceorgetown University Hospital an interdisciplinary conference. 3-5 February 2011. Washington, DC,USA.

Saribeyoglu K, Pekmezci S, Aytac E, Kapan M, Tasci H, Kalafat H, Durgun V, Perek S, Goksoy E, Sariyar S. Effects of body mass index on postoperative outcomes of liver resections. 9th Biennial congress of European-African Hepato-Pencreato- Biliary Association. 12-16 April 2011. Cape Town, South Africa.

Pekmezci S, Saribeyoglu K, Aytac E, Kapan M, Tasci H, Kalafat H, Durgun V, Perek S, Goksoy E, Sariyar S. Early postoperative outcomes of pancreaticoduodenectomy in elderly patients. 9th Biennial congress of European-African Hepato-Pencreato- Biliary Association. 12-16 April 2011. Cape Town, South Africa.

Terzi C, Aytac E, Eryilmaz E, Erel S, Mutlu F, Gulkesen H. General Surgery training Turkey: A survey study of the Turkish Surgical Association. 1th World Congress on Surgical Trainig. September 8-8, 2011, Gotenburg, Sweden.

Costedio M, Aytac E, Gorgun E, Kiran RP, Remzi FH. Reduced Port Versus Conventional Laparoscopic Total Proctocolectomy and Ileal J Pouch-Anal Anastomosis. SAGES 7-10/March/2012 San Diego, USA.

Aytac E, Stocchi L, Remzi FH, Kiran RP. Laparoscopic colorectal procedures should selectively be performed in patients with previous midline laparotomy. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Aytac E, Stocchi L, Ozdemir Y, Kiran RP. Conversion does not affect postoperative morbidity and mortality after laparoscopic colorectal resections ASCRS June 2-6, 2012 San Antonio, Texas, USA

Sulu B, Aytac E, Stocchi L, Vogel JD, Kiran RP. The minimally invasive approach minimizes the perioperative thromboembolic and bleeding complications for patients on chronic oral anticoagulant therapy undergoing colorectal surgery. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Sulu B, Kalady MF, Aytac E, Heald B, Church JM, Remzi FH. Follow up of Juvenile Polyposis Syndrome patients with BMPR1A or SMAD4 mutation. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Sulu B, Kalady MF, Aytac E, Church JM, Remzi FH. Presentation, management and recurrence of acute bowel obstruction in Peutz-Jeghers Syndrome. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Gorgun E, Aytac E, Manilich E, Church JM, Remzi FH. Intraoperative colonoscopy during laparoscopic colorectal surgery has no adverse effect on the outcomes: A case-matched study.

Erem HH, Kiran RP, Ozdemir Y, Aytac E, Gurland B, Manilich E, Remzi FH. Preoperative quality of life and postoperative changes evaluation in colorectal surgery with “The Knowledge Program”. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Ozdemir, Y; Kalady, MF; Erem, HH, Kiran RP Aytac E, Church JM, Remzi F. Control of Anal Transitional Zone Neoplasia in Patients with Familial Adenomatous Polyposis after Restorative Proctocolectomy and Ileal Pouch Anal Anastomosis. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Ozdemir, Y, Kiran RP, Erem H H, Aytac E, Gorgun E, Remzi FH. Clinical and Functional Outcomes after Restorative Proctocolectomy and Ileal Pouch-Anal Anastomosis in the Pediatric Population. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Liang J, Wexner SD, Remzi F, Aytac E, Chman E, da Silva G, Berho, M. Lymph node count is associated with decreased cancer related death in stage I-II colorectal cancer patients. ASCRS June 2-6, 2012 San Antonio, Texas, USA.

Aytac E, Lavery IC, Kalady MF, Kiran RP. Impact of obesity on operation performed, complications and long term outcomes in terms of restoration of intestinal continuity for patients with mid and low rectal cancer. 53rd Annual Meeting of SSAT Digestive Disease Week ,San Diego, California, May 19-22, 2012.

Aytac E, Stocchi L, Remzi FH, Kiran RP. Is laparoscopic surgery for recurrent Crohn’s disease beneficial in patients with previous primary resection through midline laparotomy? A case-matched study. 53rd Annual Meeting of SSAT Digestive Disease Week ,San Diego, California, May 19-22, 2012.

Pekmezci S, Saribeyoglu K, Aytac E, Serdar B. Hepaticojejunostomy With “The Hand Fan Technique” 10th World congress of IHPBA, Paris, France, July 1-5, 2012.

Saribeyoglu K, Pekmezci S, Aytac E, Cancan G, Kapan M, Erguney S. Surgery For Serous And Mucinous Cystic Neoplasms Of The Pancreas: Single Center Experience. 10th World congress of IHPBA, Paris, France, July 1-5, 2012.

Aytac E, Rosselli Londono J M, Erem H H, Vogel J, Costedio M. Impact of stress dose steroid administration on the outcomes of restorative proctocolectomy with ileal pouch anal anastomosis (IPAA) in patients with ulcerative colitis. American Collage of  Surgeons Annual Clinical Congress, Chicago, USA, September 30-October 4 2012.

Aytac E, Erem H H., Remzi F H., Gorgun I.E. Pain and quality of life monitoring in patients with chronic anal fissure pre- and post-lateral internal sphincterotomy utilizing the Knowledge Program. American Collage of Surgeons Annual Clinical Congress, Chicago, USA, September 30-October 4 2012.

Wu X, Gorgun E, Aytac E, Shen B, Remzi F H. Laparoscopic versus open restorative proctocolectomy with ileal pouch anal anastomosis in colorectal cancer patients: A cohort study. American Collage of  Surgeons Annual Clinical Congress, Chicago, USA, September 30-October 4 2012.

Aytac E, Rosselli Londono J M, Erem H H, Vogel J, Costedio M. Impact of stress dose steroid administration on the outcomes of restorative proctocolectomy with ileal pouch anal anastomosis (IPAA) in patients with ulcerative colitis. American Collage of  Surgeons Annual Clinical Congress, Chicago, USA, September 30-October 4 2012.

Aytac E, Erem H H., Remzi F H., Gorgun I.E. Pain and quality of life monitoring in patients with chronic anal fissure pre- and post-lateral internal sphincterotomy utilizing the Knowledge Program. American Collage of Surgeons Annual Clinical Congress, Chicago, USA, September 30-October 4 2012.

Wu X, Gorgun E, Aytac E, Shen B, Remzi F H. Laparoscopic versus open restorative proctocolectomy with ileal pouch anal anastomosis in colorectal cancer patients: A cohort study. American Collage of  Surgeons Annual Clinical Congress, Chicago, USA, September 30-October 4 2012.

Liang JJ, Aytac E, Stocchi L. Laparoscopic Reversal of Hartmann’s Procedure Reduces the Length of Postoperative Recovery in Patients with Sigmoid Diverticulitis. SLS. MRA. SRS Joınt Annual Meeting and Expo, Boston, USA, September 5-8, 2012.

Erem HH, Aytac E, Erem AD. Antimirobial surgical sutures and materials in surgery. European Surgical Society 16th Annual Meeting, Istanbul, Turkey, November 22-24, 2012.

Aytac E, Stocchi L, Ozuner G. Natural history and outcome of diverticular bleed with analysis of risk factors associated with recurrence. European Surgical Society 16th Annual Meeting, Istanbul, Turkey, November 22-24, 2012.

Erem HH, Aytac E, Erem AD. Nanotechnology related advances in surgery. European Surgical Society 16th Annual Meeting, Istanbul, Turkey, November 22-24, 2012.

Mizrakli T, Baca B, Demirkaya A, Erguner I, Aytac E, Benlice C, Hamzaoglu I, Karahasanoglu T. Outcomes of esophagectomy in patients with esophageal cancer: Single surgical team experience. European Surgical Society 16th Annual Meeting, Istanbul, Turkey, November 22-24, 2012.

Benlice C, Baca B, Firidin SN, Muti A, Aytac E, Erdamar S, Senocak M, Karahasanoglu T. Specialization on colorectal surgery improves survival in colorectal cancer patients. European Surgical Society 16th Annual Meeting, Istanbul, Turkey, November 22-24, 2012.

Gorgun IE, Aytac E, Remzi FH. Natural orifice transluminal endoscopic surgery (NOTES) using endoscopic submucosal dissection (ESD) for a large left colon lesion in a high-risk patient. SAGES, 17-20/April/2013, Baltimore, USA.

Gorgun IE, Aytac E, Costedio MM, Erem HH, Stocchi L.Single port transanal endoscopic surgery: A practical tool in surgeons toybox. SAGES, 17-20/April/2013, Baltimore, USA.

Gorgun IE, Aytac E, Remzi FH. Transanal removal of rectal neuroendocrine tumor using single port access. SAGES, 17-20/April/2013, Baltimore, USA.

Aytac E, Gorgun IE, Erem HH, Kiran RP, Hull T, Remzi FH. Quality of life and functional outcomes after circular stapled hemorrhoidopexy versus ferguson hemorrhoidectomy: a study of 217 patients with long-term follow up. ASCRS April 27- May 1, 2013 Phoenix, Arizona, USA.

Aytac E, Erem HH, Gezen G, Church JM, Ozuner G, Gorgun IE. Lessons learned from long-term follow-up after surgery for ischemic colitis: Is there life after surgery? ASCRS April 27- May 1, 2013 Phoenix, Arizona, USA.

Gorgun IE, Aytac E, Stocchi L, Abdel-Wahab M, Hammel J, Remzi FH. Survival analysis in patients with adenocarcinoma of the anal canal:  does chemoradiation provide additional benefit in relation with surgery? ASCRS April 27- May 1, 2013 Phoenix, Arizona, USA.

Aytac E, Stocchi L, Gorgun IE, Ozuner G. Recurrent Colonic Diverticular Bleeding is common within the first year and requires surgical intervention. ASCRS April 27- May 1, 2013 Phoenix, Arizona, USA.

Gezen FC, Aytac E, Costedio MM, Vogel JD, Gorgun IE. Hand-assisted versus straight laparoscopic versus open proctosigmoidectomy for rectal and sigmoid cancer: A case-matched study of one hundred patients. ASCRS April 27- May 1, 2013 Phoenix, Arizona, USA.

Aytac E, Fazio VW, MD, Erem HH, Liang J, Dietz DW, Kay M, Kiran RP. Long term outcomes of continent ileostomy created in the pediatric age group. 54th Annual Meeting of SSAT Digestive Disease Week ,Orlando, Florida, May 17-21, 2013.

Aytac E, Turina M, Gorgun IE, Stocchi L, Remzi FH, Costedio MM. Single-Port Laparoscopy Is Equally Safe and Effective as Conventional Laparoscopy for Colorectal Resections in Obese Patients. American Collage of Surgeons Annual Clinical Congress, Washington, USA, October 6-10, 2013.

Aytac E, Stocchi L, DeLong J, Costedio MM, Gorgun E, Kessler H, Remzi FH. Impact of previous midline laparotomy on the outcomes of laparoscopic intestinal resections: a case-matched study. Society of American Gastrointestinal and Endoscopic Surgeons, Salt Lake City, USA, April 2-5, 2014.

Gorgun E, Gezen FC, Aytac E, Stocchi L, Costedio MM, Remzi FH. Does laparoscopic fecal diversion offer better outcomes? A comparative study of 196 consecutive patients ? Society of American Gastrointestinal and Endoscopic Surgeons, Salt Lake City, USA, April 2-5, 2014.

Gorgun E, Aytac E, Gurland B, Meagan M Costedio. Robotic versus laparoscopic colorectal surgery: a case matched study from a tertiary referral center. Society of American Gastrointestinal and Endoscopic Surgeons, Salt Lake City, USA, April 2-5, 2014.

Aytac E, Gezen FC, Dietz DW, Costedio MM, Stocchi L, Gorgun E. Is there a role for laparoscopic surgery in recurrent crohns disease? Society of American Gastrointestinal and Endoscopic Surgeons, Salt Lake City, USA, April 2-5, 2014.

Isik O, Aytac E, Ashburn J, Ozuner G, Remzi FH, Costedio MM, Gorgun E. Does laparoscopy reduce the need for incidental splenic procedures during colorectal resections? An assessment from the NSQIP database. Society of American Gastrointestinal and Endoscopic Surgeons, Salt Lake City, USA, April 2-5, 2014.

Isik O, Snyder K, Aytac E, Kessler H, Gorgun E: Laparocoscopic Technique Decreases Iatrogenic Splenic Injury rates during Colorectal Resections. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Isik O, Aytac E, Brainard J, Valente M, Gorgun E: Does achieving negative surgical matter, or is it just the tip of the iceberg? American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Gorgun E, Isik O, Costedio M, Aytac E, Ozuner G, Church J: Colonoscopy-induced acute diverticulitis: Myth or reality? American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Aytac E, Ozuner G, Isik O, Gorgun E, Stocchi L: Management of colorectal neoplasia during pregnancy and in the postpartum period. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Gorgun E, Aytac E, Okkabaz N, Kalady M, Remzi F, Hull T: Surgery for anorectal malignant melanoma: Single center experience. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Aytac E, Ozuner G, Isik O, Gorgun E, Remzi F: Surgical management of patients with complicated ulcerative colitis during pregnancy: Maternal and fetal outcomes. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Aytac E, Ozuner G, Bennett A, Gorgun E: Colorectal squamous cell carcinoma: A rare tumor with poor prognosis. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Benlice C, Gorgun E, Aytac E, Ozuner G, Remzi F: Assesment of short-term outcomes following mesh herniorrhaphy with simultaneous colorectal surgery: A case-matched study from the ACS NSQIP. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Aytac E, Sulu B, Herald B, OMalley M, LaGuardia L, Remzi F, Kalady M, Burke C, Church J: Oncologic outcomes and survival in juvenile polyposis syndrome patients with BMPR1A or SMAD4 mutation. American Society of Colon and Rectal Surgeons for May 17th – 21st 2014 Hollywood, FL

Aytac E, Isik O, Remzi FH, Church JM, Kessler H. Short-term outcomes after open versus laparoscopic restorative proctocolectomy in patients with colonic polyposis: an assessment from the acs nsqip database Society of American Gastrointestinal and Endoscopic Surgeons, Nashville, TN USA, April 15-18.

Agbroko SO, Aytac E, Stocchi L, Remzi F, Al Chakaki A, Dietz D, Kalady M. Perineal Wound Healing And Long Term Outcomes After Salvage Abdominoperineal Resection For Local Failure of Anal Squamous cell Carcinoma Following Chemoradiation. American Society of Colon and Rectal Surgeons, May 30th – June 3th 2015 Boston, MA, USA.

Aytac E, Costedio M, Williams R, Stocchi L, Kessler H, Remzi F, Gorgun E. Single Incision Versus Multiport Laparoscopic Total Abdominal Colectomy For Medically Refractory Ulcerative Colitis: A Case Matched Study. American Society of Colon and Rectal Surgeons, May 30th – June 3th 2015 Boston, MA, USA.

Aytac E, Gorgun E, Costedio MM, Stocchi L, Remzi F, Kessler H. Is Tumor Location a Predictor For Lymph Node Metastasis in T1 Colorectal Cancer? American Society of Colon and Rectal Surgeons, May 30th – June 3th 2015 Boston, MA, USA.

Myers EA, Aytac E, Kessler H.Open vs. Laparoscopic Colectomy for Sigmoid Volvulus: An Assessment from the ACS NSQIP. American Society of Colon and Rectal Surgeons, May 30th – June 3th 2015 Boston, MA, USA.

Rencuzogullari A, Gorgun E, Costedio M, Aytac E, Kessler H, Abbas M, Remzi F. A Case Matched Comparison of Robotic Versus Laparoscopic Proctectomy for Inflammatory Bowel Disease. The Society for Surgery of the Alimentary Tract 56th Annual Meeting May 15-19, 2015, Washington, DC.

Remzi FH, Aytac E, Ashburn J, Gu J, Hull TL, Dietz DW, Stocchi L, Church JM, Shen B. Trans-Abdominal Redo Ileal Pouch Surgery For Failed Restorative Proctocolectomy Lessons Learned Over 5

Show more