Murat Dayangac, M.D.

Present Position Associate Professor of Surgery, Department of General Surgery, Istanbul Bilim University, IstanbulTransplant Surgeon, Liver Transplantation Unit, Florence Nightingale Hospital, Istanbul

Personal Information

Office Address: Abide-i Hurriyet Cad. No: 164, 34381 Sisli, IstanbulPhone: +90 212 2258398 (Office), +90 532 2070911 (Cell)Fax: +90 212 2240356 (Office)E-mail: dayangac@florence.com.tr, mdayangac@hotmail.com

Date and Place of Birth

01/01/1972, Kayseri, Turkey

Nationality Turkish

EDUCATION Degree Institution Year

Doctor of Medicine

Ege University Medical Faculty 1989-1995

Postdoctoral Training

Resident Ege University Medical Faculty, Department of General Surgery

1996-2002

Fellow Sisli Florence Nightingale Hospital, Center for Organ Transplantation

2005-2007

Faculty Academic Appointments

Instructor Department of General Surgery, Istanbul Bilim University

2006-2012

Associate Professor

Department of General Surgery, Istanbul Bilim University, Istanbul

2014 - present

Other Professional Positions

Staff Surgeon

Department of General Surgery, Ege University Medical Faculty, Izmir

2002-2004

Staff Surgeon

Medicana Hospital Camlica, Istanbul

2004-2005

Transplant Surgeon

Center for Organ Transplantation, Sisli Florence Nightingale Hospital, Istanbul

2005-present

1

Visiting Surgeon

Department of Transplantation, Mayo Clinic Jacksonville, Florida, USA

2009-2009

Major Administrative/

Leadership Positions

Director Liver Transplantation Unit, Kadikoy Florence Nightingale Hospital, Istanbul

2010 - 2016

Certifications Liver Transplantation Surgery (Ministry of Health, Turkey)

2010-present

RESEARH ACTIVITIES

Research Title/Role on Project Year

Current Unfunded Projects

The role of genetic and epigenetic factors in the development of inflammation-cirrhosis and hepatocellular carcinoma and in the evaluation of post-transplant hepatic function (2016.024.IRB2.005/Koç University)/Co-investigator.

2016-present

MicroRNA expression profiling of biliary exosomes in patients undergoing living donor liver transplantation (investigating the role of biliary microRNAs in post-transplant biliary strictures in collaboration with Koç University Medical School)/Co-investigator

2016-present

Sponsored Clinical Trials

A 24 Month, Randomized, Controlled, Study to Evaluate the Efficacy and Safety of Concentration-controlled Everolimus Plus Reduced Tacrolimus Compared to Standard Tacrolimus in Recipients of Living Donor Liver Transplants (NCT01888432)/Co-investigator.

2014-present

A Multicenter, Randomized, Open-label Study to Compare the Development of Liver Fibrosis at 12 Months After Transplantation for Hepatitis C Cirrhosis in Patients Receiving Either Cyclosporine Microemulsion or Tacrolimus (NCT00260208)/Co-investigator.

2006-2010

Efficacy and Safety Study Comparing Concentration-controlled Everolimus in Two Doses (1.5 and 3.0 mg/Day Starting Doses) With Reduced Cyclosporine Versus 1.44 g Mycophenolic Acid With Standard Dose Cyclosporine in de Novo Renal Transplant Recipients (NCT00251004)/Co-investigator.

2005-2009

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Thesis Cytotoxic effect of sequential application of lipiodol and interferon alpha-2a on the hepatocellular carcinoma cell line (HepG2). Ege University Medical Faculty, Departments of Surgery and Medical Oncology.

2000-2001

Ad Hoc Reviewer American Journal of TransplantationLiver TransplantationInternational Journal of Surgery

Professional Societies

ESOT (European Society for Organ Transplantation)

2009-present

ILTS (International Liver Transplantation Society) 2014-present

Turkish Liver Transplantation Society 2008-present

Awards International Liver Transplant Society Trainee Travel Award

2007

Turkish Liver Transplantation Society Scholarship 2008

Projects International Transplant Network for Developing Countries (ITN)

2015-present

Technical Assistance for Alignment in Organ Donation (Turkey)

2014

Committee Service Young Professionals in Transplantation Committee (European Society for Organ Transplantation)

2012-2015

Basic Science Committee (International Liver Transplantation Society)

2015-present

Peer-reviewed Publications

1. Alim A, Tokat Y, Erdogan Y, Gokkaya Z, Dayangac M, Yuzer Y, Oezcelik A. Liver transplantation for homozygote familial hypercholesterolemia: the only curative treatment. Pediatr Transpl. 2016 Jul 20. doi: 10.1111/petr.12763

2. Idilman R, Akyildiz M, Keskin O, Gungor G, Yilmaz TU, Kalkan C, Dayangac M, Cinar K, Balci D, Hazinedaroglu S, Tokat Y. The long-term efficacy of combining nucleos(t)ide analog and low-dose hepatitis B immunoglobulin on post-transplant hepatitis B virus recurrence. Clin Transplant. 2016 Jul 13. doi: 10.1111/ctr.12804.

3. Dayangac M, Tokat Y. The evolution of anterior sector venous drainage in right lobe living donor liver transplantation: does one technique fit all? Hepatobiliary Surg Nutr. 2016; 5(2): 151-8.

4. Gunay Y, Guler N, Yaprak O, Dayangac M, Akyildiz M, Altaca G, Yuzer Y, Tokat Y. Living Donor Liver

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Transplantation Outcomes for Hepatocellular Carcinoma Beyond Milan or UCSF Criteria. Indian J Surg. 2015 Dec; 77(Suppl 3): 950-6.

5. Oezcelik A, Dayangac M, Guler N, Yaprak O, Erdogan Y, Akyildiz M, Sevdik Z, Yuzer Y, Tokat Y. Living Donor Liver Transplantation in Patients 70 Years or Older. Transplantation. 2015 Jul; 99(7): 1436-40.

6. Demirbas T, Akyildiz M, Dayangac M, Yaprak O, Dogusoy G, Bassullu N, Yuzer Y, Tokat Y. Living donor right lobe liver transplantation as a treatment for hepatic alveolar echinococcosis: report of three cases. Hepatogastroenterology. 2015; 62(137): 93-7.

7. Guler N, Yaprak O, Gunay Y, Dayangac M, Akyildiz M, Yuzer F, Yuzer Y, Tokat Y. Major complications of adult right lobe living liver donors. Hepatobiliary Pancreat Dis Int. 2015; 14(2): 150-6.

8. Gunay Y, Guler N, Akyildiz M, Yaprak O, Dayangac M, Yuzer Y, Tokat Y. Management of patients with recurrent hepatocellular carcinoma following living donor liver transplantation: a single center experience. Gulf J Oncolog. 2014; 1(15): 12-8.

9. Gunay Y, Guler N, Dayangac M, Taskesen F, Yaprak O, Emek E, Akyildiz M, Altaca G, Yuzer Y, Tokat Y. Living donor liver transplantation for obese patients: Challenges and outcomes. Liver Transpl. 2014. 20(3): 311-22.

10. Guler N, Unalp O, Guler A, Yaprak O, Dayangac M, Sozbilen M, Akyildiz M, Tokat Y. Glasgow coma scale and APACHE-II scores affect the liver transplantation outcomes in patients with acute liver failure. Hepatobiliary Pancreat Dis Int. 2013; 12(6): 589-93.

11. Guler N, Dayangac M, Yaprak O, Akyildiz M, Gunay Y, Taskesen F, Tabandeh B, Bulutcu F, Yuzer Y, Tokat Y. Anatomical variations of donor portal vein in right lobe living donor liver transplantation: the safe use of variant portal veins. Transpl Int. 2013; 26(12): 1191-7.

12. Guler N, Gunay Y, Dayangac M, Yaprak O, Akyildiz M, Yuzer Y, Tokat Y. Liver transplantation for fulminant hepatic failure due to iatrogenic porta hepatis injury. Minerva Chir. 2013; 68(3): 333-4.

13. Demirbas T, Bulutcu F, Dayangac M, Yaprak O, Guler N, Oklu L, Akyildiz M, Altaca G, Tokat Y, Yuzer Y. Which incision is better for living-donor right hepatectomy? Midline, J-shaped, or Mercedes. Transplant Proc. 2013; 45(1): 218-21.

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14. Demirbas BT, Piskin T, Dayangac M, Yaprak O, Oklu L, Yuzer Y, Tokat Y. Successful treatment of severe hepatorenal syndrome with living donor liver transplantation. Hepatogastroenterology. 2012; 59(119): 2305-6.

15. Bassullu N, Turkmen I, Dayangac M, Yagiz Korkmaz P, Yasar R, Akyildiz M, Yaprak O, Tokat Y, Yuzer Y, Bulbul Dogusoy G. The Predictive and Prognostic Significance of c-erb-B2, EGFR, PTEN, mTOR, PI3K, p27, and ERCC1 Expression in Hepatocellular Carcinoma. Hepat Mon. 2012; 12(10 HCC): e7492.

16. Yaprak O, Guler N, Balci NC, Dayangac M, Demirbas T, Killi R, Tokat Y, Yuzer Y. A new technique for the reconstruction of complex portal vein anomalies in right lobe living liver donors. Hepatobiliary Pancreat Dis Int. 2012; 11(4): 438-41.

17. Yaprak O, Guler N, Balci NC, Dayangac M, Demirbas T, Killi R, Tokat Y, Yuzer Y. AFP level and histologic differentiation predict the survival of patients with liver transplantation for hepatocellular carcinoma. Hepatobiliary Pancreat Dis Int. 2012; 11(4): 438-41.

18. Yaprak O, Guler N, Altaca G, Dayangac M, Demirbas T, Akyildiz M, Ulusoy L, Tokat Y, Yuzer Y. Ratio of remnant to total liver volume or remnant to body weight: which one is more predictive on donor outcomes? HPB (Oxford). 2012; 14(7): 476-82.

19. Bas K, Yaprak O, Dayangac M, Ulusoy OL, Dogusoy GB, Yuzer Y, Tokat Y. Living-donor liver transplant in 3 patients with Budd-Chiari syndrome: case report. Exp Clin Transplant. 2012; 10(2): 172-5.

20. Yaprak O, Dayangac M, Demirbas BT, Tabendeh B, Yuzer Y, Tokat Y. Analysis of right lobe living-liver donor complications: a single center experience. Exp Clin Transplant. 2011; 9(1): 56-9.

21. Demirbas T, Piskin T, Dayangac M, Yaprak O, Akyildiz M, Tokat Y, Yuzer Y. Right-lobe liver transplant from donors with Gilbert syndrome. Exp Clin Transplant. 2012 Feb; 10(1): 39-42. Transplant Proc. 2011; 43(10): 3796-801.

22. Bas K, Dayangac M, Yaprak O, Yuzer Y, Tokat Y. International collaboration of Turkey in liver transplantation research: a bibliometric analysis. Transplant Proc. 2011; 43(10): 3796-801.

23. Yaprak O, Dayangac M, Akyildiz M, Demirbas T, Guler N, Bulutcu F, Bassullu N, Akun E, Yuzer Y, Tokat Y. Biliary

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complications after right lobe living donor liver transplantation: a single-centre experience. HPB (Oxford). 2012; 14(1): 49-53.

24. Piskin T, Demirbas T, Yalcin L, Yaprak O, Dayangac M, Guler N, Bulutcu F, Yuzer Y, Tokat Y. Recipient splenic artery utilization for arterial re-anastomosis in living donor liver transplantation: single-center experience. Hepatogastroenterology. 2012; 59(116): 1263-4.

25. Yaprak O, Demirbas T, Duran C, Dayangac M, Akyildiz M, Tokat Y, Yuzer Y. Living donor liver hilar variations: surgical approaches and implications. Hepatobiliary Pancreat Dis Int. 2011; 10(5): 474-9.

26. Başsüllü N, Türkmen I, Yaprak O, Dayangaç M, Demırbaş T, Güler N, Uraz S, Akyildiz M, Cığercıoğullari E, Tokat Y, Yüzer Y, Doğusoy GB. General evaluation of hepatectomy and hepatocellular carcinoma cases. Turk Patoloji Derg. 2011; 27(3): 221-9.

27. Yaprak O, Balci NC, Dayangac M, Demirbas T, Guler N, Ulusoy L, Tokat Y, Yuzer Y. Cryopreserved aortic quilt plasty for one-step reconstruction of multiple hepatic venous drainage in right lobe living donor liver transplantation. Transplant Proc. 2011; 43(7): 2817-9.

28. Balci D, Dayangac M, Yaprak O, Akin B, Duran C, Killi R, Yuzer Y, Tokat Y. Living donor liver transplantation for hepatocellular carcinoma: a single center analysis of outcomes and impact of different selection criteria. Transpl Int. 2011; 24(11): 1075-83.

29. Dayangac M, Taner CB, Yaprak O, Demirbas T, Balci D, Duran C, Yuzer Y, Tokat Y. Utilization of elderly donors in living donor liver transplantation: When more is less? Liver Transpl. 2011; 17(5): 548-55.

30. Yaprak O, Dayangac M, Balci D, Demirbas T, Yuzer Y, Tokat Y. Use of livers from hepatitis B core antibody positive donors in living donor liver transplantation. Hepatogastroenterology. 2010 Sep-Oct; 57 (102-103): 1268-71.

31. Yaprak O, Dayangac M, Balci D, Bas K, Yuzer Y, Tokat Y. Hepatitis B prophylaxis in living donor liver transplantation: single center experience. Hepatogastroenterology. 2010 Sep-Oct; 57 (102-103): 1178-82.

32. Dayangac M, Taner CB, Akin B, Uraz S, Balci D, Duran C, Ayanoglu O, Killi R, Yuzer Y, Tokat Y. Dual left lobe living donor liver transplantation using donors unacceptable for right lobe donation: a case report. Transplant Proc. 2010;

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42: 4560-3.33. Dayangac M, Taner CB, Balci D, Memi I, Yaprak O, Akin

B, Duran C, Killi R, Ayanoglu O, Yuzer Y, Tokat Y. Use of middle hepatic vein in right lobe living donor liver transplantation. Transplant Int. 2010; 23(3): 285-91.

34. Duran C, Uraz S, Kantarci M, Ozturk E, Doganay S, Dayangac M, Bozkurt M, Yuzer Y, Tokat Y. Hepatic arterial mapping by multidetector computed tomographic angiography in living donor liver transplantation. J Comput Assist Tomogr. 2009 Jul-Aug; 33(4): 618-25.

35. Dayangac M, Makay O, Yeniay L, Aynaci M, Kapkac M, Yilmaz R. Precipitating factors for lymphedema following surgical treatment of breast cancer: implications for patients undergoing axillary lymph node dissection. Breast J. 2009 Mar-Apr; 15(2): 210-1.

36. Balci D, Taner B, Dayangac M, Akin B, Yaprak O, Duran C, Uraz S, Hayzaran S, Ayanoglu O, Killi R, Senturk H, Yuzer Y, Tokat Y. Splenic abscess after splenic artery ligation in living donor liver transplantation: a case report. Transplant Proc. 2008 Jun; 40(5): 1786-8.

37. Taner CB, Dayangac M, Akin B, Balci D, Uraz S, Duran C, Killi R, Ayanoglu O, Yuzer Y, Tokat Y. Donor safety and remnant liver volume in living donor liver transplantation. Liver Transpl. 2008 Aug; 14(8): 1174-9.

38. Uraz S, Duran C, Balci D, Akin B, Dayangac M, Kurt Z, Ayanoglu OH, Killi R, Yuzer Y, Tokat Y. A very rare venous anomaly in a living liver donor: left hepatic venous connection to the right atrium. Transplant Proc. 2007; 39(5): 1714-5.

39. Duran C, Taner B, Dayangac M, Akin B, Balci D, Kurt Z, Killi R, Yuzer Y, Tokat Y. Why we did not use this donor. Liver Transpl. 2007 13(8): 1199-200.

40. Sirvanci M, Duran C, Ozturk E, Balci D, Dayangac M, Onat L, Yüzer Y, Tokat Y, Killi R. The value of magnetic resonance cholangiography in the preoperative assessment of living liver donors. Clin Imaging. 2007; 31(6): 401-5.

41. Tuncyurek P, Sari M, Firat O, Mutaf I, Gulter C, Tunger A, Yuce G, Yilmaz M, Makay O, Dayangac M, Ersin S. Does pharmaconutrition with L-arginine and/or alpha-tocopherol improve the gut barrier in bile duct ligated rats? Eur Surg Res. 2006; 38(1): 4-10.

42. Icoz G, Makay O, Dayangac M, Zeytunlu M, Kilic M, Korkut M. Missed intra-abdominal malignancies after laparoscopic cholecystectomy. Ann Saudi Med. 2005 Mar-

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Apr; 25(2): 172-3.43. Ilkgül O, Içöz G, Dayangaç M, Tokat Y, Ozütemiz O. A

case of antiphospholipid antibody syndrome with Budd-Chiari and colonic ulcers complicated with gastrointestinal hemorrhage. Turk J Gastroenterol. 2004 Jun; 15(2): 115-6.

44. Kara E, Gokhan I, Dayangac M, Ilkgul O, Ertan H, Tokat Y, Terzioglu E. Effect of portal venous injection of donor spleen cells on skin allograft survival in rat. Indian J Med Res. 2004; 119(3): 110-4.

45. Korkut M, Içöz G, Dayangaç M, Akgün E, Yeniay L, Erdoğan O, Cal C. Outcome analysis in patients with Fournier's gangrene: report of 45 cases. Dis Colon Rectum. 2003 May; 46(5): 649-52.

46. Akyildiz M, Ersin S, Oymaci E, Dayangaç M, Kapkac M, Alkanat M. Effects of somatostatin analogues and vitamin C on bacterial translocation in an experimental intestinal obstruction model of rats. J Invest Surg. 2000 May-Jun; 13(3): 169-73.

Invited Presentations

1. Living Donor Liver Transplantation: From Bench to Bedside – The Surgeon’s Perspective. 23rd Liver Intensive Care Group of Europe Annual Meeting. 8-9 September 2016, Bucharest, Romania.

2. Living-donor Liver transplantation: A Promising Alternative for HCC Management. Novartis Sponsored Satellite Symposium, International Liver Transplantation Society 22nd Annual International Congress. May 6, 2016, Seoul, South Korea.

3. Risk Factors For Biliary Complications in Right Lobe Living Donor Liver Transplantation: Technical Aspects of Risk Minimization. Turkish and Japanese Surgical and Gastroenterology Dates. October 29-31, 2015, Marmara University, Istanbul.

4. Paired Exchange Living Donor Liver Transplantation. Vanguard Round Presentations. International Liver Transplantation Society 21st Annual International Congress. July 8-11, 2015, Chicago, USA.

5. Combined Liver and Kidney Transplantation. Hot Topics in Nephrology, Dialysis and Transplantation. 24 January 2015, Istanbul Florence Nightingale Hospital, Istanbul.

6. Therapeutic Approaches for HCC: Liver Transplantation. Liver Transplantation – An Interdisciplinary Approach. International Association of Surgeons, Gastroenterologists and Oncologists. CME Postgraduate Course. September 29-30, 2011, Florence

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Nightingale Hospital, Istanbul.Poster

Presentations1. Murat Dayangac, Sezgi Barlas, Ali Kagan Gokakin, Sema

Baghaki, Barkin Malkoc, Altan Alim, Yalcin Erdogan, Arzu Oezcelik, Yildiray Yuzer, Yaman Tokat. Utility of interposition dacron grafts for reconstruction of interposition dacron grafts for reconstruction of anterior sector drainage veins in right lobe living donor liver transplantation. 17th Congress of European Society for Organ Transplantation. September 2015, Brussels, Belgium. Transplant Int. 2015; 28 (Suppl. 4): 109.

2. Murat Dayangac, Sema Baghaki, Barkin Malkoc, Altan Alim, Yalcin Erdogan, Sencan Acar, Arzu Oezcelik, Murat Akyildiz, Refik Killi, Yildiray Yuzer, Yaman Tokat. The impact of routine anterior sector drainage in right lobe living donor liver transplantation. 17th Congress of European Society for Organ Transplantation. September 2015, Brussels, Belgium. Transplant Int. 2015; 28 (Suppl. 4): 56.

3. Murat Dayangac, Yalcin Erdogan, Sencan Acar, Altan Alim, Arzu Ozcelik, Necdet Guler, Murat Akyildiz, Onur Yaprak, Yildiray Yuzer, Yaman Tokat. Right Lobe Grafts with Triple Biliary Orifices: Think Thrice. ILTS 21st Annual International Congress. July 8-11, 2015 Chicago, IL, USA. Transplantation. 2015; 99 (Suppl. 1): 109.

4. Murat Dayangac, Murat Akyildiz, Yalcin Erdogan, Yaman Tokat. Living Donor Liver Transplantation in High MELD Score. 8th ELITA Meeting, Prague, 2014.

5. Levent Oklu, Murat Dayangac, Arzu Ozcelik, Necdet Guler, Kerem Oral, Onur Yaprak, Fisun Yuzer, Murat Akyildiz, Yaman Tokat. Combined Aortic Valve Replacement and Living Donor Liver Transplantation: Case Report. Transplant International. 2013; 26 (Suppl. 2): 177.

6. Murat Dayangac, Yusuf Gunay, Necdet Guler, Fatih Taskesen, Onur Yaprak, Murat Akyildiz, Gulum Altaca, Yildiray Yuzer, Yaman Tokat. Evolution of a Reliable Duct-to-duct Reconstruction Technique in Right Lobe Grafts with Double Biliary Orifices. 16th Congress of European Society for Organ Transplantation. September 8-11, 2013, Vienna, Austria. Transplant International. 2013; 26 (Suppl. 2): 65.

7. Murat Dayangac, Murat Akyildiz, Reyhan Kucukkaya, Necdet Guler, Levent Oklu, Fisun Yuzer, Gulum Altaca, Yildiray Yuzer, Yaman Tokat. Thrombophilia Screening in Living Liver Donors. 16th Congress of European Society for Organ Transplantation. September 8-11, 2013, Vienna, Austria. Transplant International. 2013; 26 (Suppl. 2): 156.

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8. Murat Dayangac, Murat Akyildiz, Onur Yaprak, Tolga Demirbas, Necdet Guler, Yildiray Yuzer, Yaman Tokat. Impact of MELD Score in Living Donor Liver Transplantation: The Lower, the Better? ILTS 18th Annual International Congress. May 16–19, 2012. San Francisco, CA, USA. Liver Transplantation. 2012; 18 (Suppl. 1): S96.

9. Murat Dayangac. Liver transplantation for HCC: do we need new criteria for better survival? The 2nd Congress of Euro-Asian Liver Transplantation Society, April 13-16, 2011, Bucharest, Romania.

10. M. Dayangac. Remnant liver regeneration after donor right hepatectomy. XIII National Surgical Congress with International Participation, October 7-10, 2010, Sofia, Bulgaria.

11. Murat Dayangac, Burcin C Taner, Deniz Balci, Cihan Duran, Baris Akin, Refik Killi, Yildiray Yuzer, Yaman Tokat. Prospective randomized trial of intermittent portal triad clamping vs. no clamping in donor right hepatectomy. American Transplant Congress, April 30-May 4, 2010, San Diego, USA.

12. Murat Dayangac, Cemal B. Taner, Deniz Balci, Onur Yaprak, Cihan Duran, Suleyman Uraz, Baris E. Akin, Omer H. Ayanoglu, Refik Killi, Yildiray Yuzer, Yaman Tokat. Extended criteria donors in living donor liver transplantation. International Liver Transplantation Society 13th Annual International Congress, July 9-12, 2008, Paris, France.

13. Dayangac M, Taner B, Balci D, Akin B, Duran C, Ayanoglu O, Yuzer Y. Impact of inflow occlusion in adult right lobe living donor liver transplantation. International Liver Transplantation Society 13th Annual International Congress, June 20-23, 2007, Rio de Janeiro, Brazil.

Abstracts 1. Murat Dayangac, Yaman Tokat. The Evolution of Anterior Sector Venous Drainage in Right Lobe Living Donor Liver Transplantation: Does One Technique Fit All? ILTS 22nd Annual International Congress. May 4–7, 2016 Seoul, Korea. Transplantation. 2016; 100 (Suppl. 5): 158.

2. Murat Dayangac, Yaman Tokat, Yildiray Yuzer. Devastating And Fatal Biliary Complications After Donor Right Hepatectomy. ILTS 22nd Annual International Congress. May 4 – 7, 2016 Seoul, Korea. Transplantation. 2016; 100 (Suppl. 5): 229.

3. Murat Dayangac, Sencan Acar, Yalcin Erdogan, Arzu Oezcelik, Murat Akyildiz, Yaman Tokat. How to make living

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donor liver transplantation safe in patients with high MELD scores. 17th Congress of European Society for Organ Transplantation. September 2015, Brussels, Belgium. Transplant Int. 2015; 28 (Suppl. 4): 786.

4. Altan Alim, Arzu Oezcelik, Murat Dayangac, Yaman Tokat. Splenic artery transposition for arterial reconstruction living donor liver transplantation. 17th Congress of European Society for Organ Transplantation. September 2015, Brussels, Belgium. Transplant Int. 2015; 28 (Suppl. 4): 856.

5. Soykan Barlas, Baris Akin, Murat Dayangac, Ayse Sinangil, Vedat CelikTevfik Ecder. Right-sided donor nephrectomy with hand-assisted retroperitoneoscopic approach offers increased safety with excellent outcome. 17th Congress of European Society for Organ Transplantation. September 2015, Brussels, Belgium. Transplant Int. 2015; 28 (Suppl. 4): 855.

6. Baris Akin, Soykan Barlas, Murat Dayangac, Ayse Sinangil, Vedat Celik, Tevfik Ecder. Hand-assisted retroperitoneoscopic donor neprectomy offers more liberal use of right kidneys: An experience of 455 cases. 17th Congress of European Society for Organ Transplantation. September 2015, Brussels, Belgium. Transplant Int. 2015; 28 (Suppl. 4): 104.

7. Murat Akyildiz, Sencan Acar, Arzu Oezcelik, Murat Dayangac, Senay Kilic, Yalcin Erdogan, Yaman Tokat. Cardiovascular Screening in Living Donor Liver Transplantation: A Single Center Experience. ILTS 21st Annual International Congress. July 8-11, 2015 Chicago, IL, USA. Transplantation. 2015; 99 (Suppl. 1): 177.

8. Murat Dayangac, Sema Baghaki, Altan Alim, Yalcin Erdogan, Sencan Acar, Arzu Ozcelik, Necdet Guler, Murat Akyildiz, Yildiray Yuzer, Yaman Tokat, Refik Killi. The Quantitative Evaluation of Hepatic Artery Anastomosis by Intraoperative Ultrasound in Living Donor Liver Transplantation. ILTS 21st Annual International Congress. July 8-11, 2015 Chicago, IL, USA. Transplantation. 2015; 99 (Suppl. 1): 182.

9. Murat Akyildiz, Murat Dayangac, Sencan Acar, Arzu Oezcelik, Necdet Guler, Onur Yaprak, Gokhan Gungor, Yalcin Erdogan, Yaman Tokat. Living Donor Liver Transplantation in Patients With MELD Score Lower Than 15: Guidelines and Real Time Results. ILTS 21st Annual International Congress. July 8-11, 2015 Chicago, IL, USA. Transplantation. 2015; 99 (Suppl. 1): 228.

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10. Arzu Oezcelik, Necdet Guler, Altan Alim, Murat Dayangac, Yalcin Erdogan, Murat Akyildiz, Yildiray Yuzer, Yaman Tokat. Very Early Arterial Perfusion Problems Do Not Affect the Primary Liver Function in Living Donor Liver Transplantation. ILTS 21st Annual International Congress. July 8-11, 2015 Chicago, IL, USA. Transplantation. 2015; 99 (Suppl. 1): 253.

11. E. Akin, I. Barlas, M. Dayangac, A. Sinangil, V. Celik, T. Ecder. Hand Assisted Retroperitoneoscopic Donor Nephrectomy in Challenging Cases; Right Sided Donor Nephrectomy With Multiple Renal Arteries. 2015 American Transplant Congress. Am J Transpl. 2015; 15 (Suppl. 3):

12. Murat Dayangac, Murat Akyildiz, Yalcin Erdogan, Gokhan Gungor. Living Donor Liver Transplantation in High Model for End-Stage Liver Disease Score. Hepatology. 2014; 60 (Suppl. S1):509A-510A.

13. Murat Akyildiz, Gokhan Gungor, Necdet Guler, Arzu Oezcelik, Tonguc Utku Yilmaz, Onur Yaprak, Yalcin Erdogan, Murat Dayangac, Yildiray Yuzer, Yaman Tokat. Adult Living Donor Liver Transplantation From Donors with Gilbert’s Syndrome: is it safe. Hepatology. 2014; 60 (Suppl. S1): 515A.

14. Murat Akyildiz, Arzu Oezcelik, Gokhan Gungor, Nergis Ekmen, Necdet Guler, Onur Yaprak, Yalcin Erdogan, Gulen B Dogusoy, Murat Dayangac, Yildiray Yuzer, Yaman Tokat. PET/CT Positivity Has Lower Survival in Adult Living Donor Liver Transplantation for Hepatocellular Carcinoma. Hepatology. 2014; 60 (Suppl. S1): 515A.

15. Ramazan Idilman, Murat Akyildiz, Onur Keskin, Ali Tuzun, Tonguc U Yilmaz, Necet Guler, Onur Yaprak, Gokhan Gungor, Yalcin Erdogan, Murat Dayangac, Deniz Balci, Kubilay Cinar, Acar Tuzuner, Selcuk Hazinedaroglu, Yaman Tokat, Sadik Ersoz, Abdulkadir Dokmeci. The long-term efficacy of combination of nucleos(t)ide analogue treatment and low dose hepatitis b immunoglobulin on posttransplant HBV recurrence. Hepatology. 2014; 60 (Suppl. S1): 542A.

16. Murat Dayangac, Murat Akyildiz, Levent Oklu, Necdet Guler, Onur Yaprak, Arzu Ozcelik, Fisun Yuzer, Tulay Erkan, Yildiray Yuzer, Yaman Tokat. The First Paired Exchange Living Donor Liver Transplantation in Europe: Case Report. 16th Congress of European Society for Organ Transplantation. September 8-11, 2013, Vienna, Austria. Transplant International. 2013; 26 (Suppl. 2): 317.

17. Necdet Guler, Murat Dayangac, Onur Yaprak, Yusuf

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Gunay, Fatih Taskesen, Gulum Altaca, Yildiray Yuzer, Yaman Tokat. The Safe Use of Right Lobe Grafts With Portal Vein Variation in Living Donor Liver Transplantation. 16th Congress of European Society for Organ Transplantation. September 8-11, 2013, Vienna, Austria. Transplant International. 2013; 26 (Suppl. 2): 291.

18. Arzu Ozcelik, Murat Dayangac, Necdet Guler, Levent Oklu, Onur Yaprak, Murat Akyildiz, Yildiray Yuzer, Yaman Tokat. Living Donor Liver Transplantation in Septuagenarians. 16th Congress of European Society for Organ Transplantation. September 8-11, 2013, Vienna, Austria. Transplant International. 2013; 26 (Suppl. 2): 292.

19. E. Akin, M. Dayangac, M. Kaya. Optimizing Right-Sided Donor Nephrectomy: The Transition from Hand-Assisted Laparoscopic to Retroperitoneoscopic Approach. Am J Transplant. 2012; 12(Suppl. 3): 505.

20. O. Yaprak, M. Dayangac, M. Akyildiz, T. Demirbas, N. Guler, L. Ulusoy, F. Bulutcu, A. Kurt, Y. Tokat, Y. Yuzer. Remnant to Total Liver Volume or Remnant to Body Weight Ratio. Which One Is the More Predictive on Donor Outcome. Am J Transplant. 2012; 12(Suppl. 3): 434.

21. Murat Dayangac, Onur Yaprak, Nuray Bassullu, Tolga Demirbas, Necdet Guler, Murat Akyildiz, Gulen Dogusoy, Yildiray Yuzer, Yaman Tokat. Living Donor Liver Transplantation for Small (<2 cm) Hepatocellular Carcinoma: A Class of Its Own. ILTS 18th Annual International Congress. May 16–19, 2012. San Francisco, CA, USA. Liver Transplantation. 2012; 18 (Suppl. 1): S255-S256.

22. Murat Dayangac, Murat Akyildiz, Onur Yaprak, Tolga Demirbas, Necdet Guler, Yildiray Yuzer, Yaman Tokat. Safety of Re-Switch from Sirolimus to Tacrolimus in Liver Transplant Patients with Calcineurin Inhibitor Nephrotoxicity. ILTS 18th Annual International Congress. May 16–19, 2012. San Francisco, CA, USA. Liver Transplantation. 2012; 18 (Suppl. 1): S153-S154.

23. Murat Dayangac, Onur Yaprak, Murat Akyildiz, Gulen B Dogusoy, Tolga Demirbas, Necdet Guler, Yildiray Yuzer, Yaman Tokat. Liver transplantation for hepatocellular carcinoma: we need new criteria for better survival. Hepatology. 2011; 54(4) (Suppl.): 681A.

24. Murat Dayangac, Baris N Hasbal, Onur Yarak, Tolga Demirbas, Necdet Guler, Murat Akyildiz, Yildiray Yuzer, Yaman Tokat. Hepatitis delta virus infection and liver

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transplantation. Hepatology. 2011; 54(4) (Suppl.): 623A.25. Baris Akin, Muammer Kaya, Koray Bas, Murat Dayangac,

Turgut Piskin, Vedat Celik. Switch from laparoscopic to retroperitonoscopic hand assissted donor nephrectomy. Transplant International. 2011; 24 (Suppl.s2): 183.

26. Baris Akin, Erhan Sezer, Muammer Kaya, Murat Dayangac, Jale Saridogan, Vedat Celik. Does retroperitoneoscopic nephrectomy increase the risk for lymphocele formation. Transplant International. 2011; 24 (Suppl.s2): 281.

27. Yildiray Yuzer, Onur Yaprak, Murat Dayangac, Fisun Bulutcu, Levent Yalcin, Gulen Bulbul Dogusoy, Nuray Bassulu, Tolga Demirbas, Necdet Guler, Refik Killi, Yaman Tokat. A single center experience: treatment of HCC with transplantation, prognostic factor analysis. The 2011 Joint International Congress of ILTS, ELITA, and LICAGE, June 22-25, 2011, Valencia, Spain.

28. Murat Dayangac, Deniz Balci, Onur Yaprak, Tolga Demirbas, Levent Ulusoy, Yaman Tokat, Yildiray Yuzer. Remnant liver regeneration after donor right hepatectomy. The 2011 Joint International Congress of ILTS, ELITA, and LICAGE, June 22-25, 2011, Valencia, Spain.

29. Tolga Demirbas, Fusun Bulutcu, Yildiray Yuzer, Onur Yaprak, Murat Dayangac, Yaman Tokat. Which incision is better for living donor right hepatectomy? Midline, J-shaped or Mercedes. The 2011 Joint International Congress of ILTS, ELITA, and LICAGE, June 22-25, 2011, Valencia, Spain.

30. Murat Dayangac, Deniz Balci, Burcin Taner, Onur Yaprak, Yildiray Yuzer, Yaman Tokat. Impact of anterior sector drainage on liver regeneration in living donor liver transplantation. The Liver Meeting, Oct 29- Nov 2, 2010, Boston, USA.

31. O. Yaprak, M. Dayangac, B. Tolga Demirbas, B. Tabandeh, Y Yuzer, Y. Tokat. Analysis of right lobe living liver donor complications: single center experience. XIII National Surgical Congress with International Participation, October 7-10, 2010, Sofia, Bulgaria.

32. Murat Dayangac, Burcin C. Taner, Deniz Balci, Onur Yaprak, Tolga Demirbas, Yaman Tokat, Yildiray Yuzer. Utilization of Elderly Donors in Living Donor Liver Transplantation: When More Is Less? International Liver Transplantation Society 15th Annual International Congress, July , 2010, Hong Kong, China.

33. Murat Dayangac, Onur Yaprak, Koray Bas, Levent

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Ulusoy, Cihan Duran, Refik Killi, Yildiray Yuzer, Yaman Tokat. Living donor liver transplantation using right liver graft with hemangiomatosis. Case report. International Liver Transplantation Society 15th Annual International Congress, July 8-11, 2009, New York, USA.

34. Murat Dayangac, Cemal B Taner, Onur Yaprak, Koray Bas, Levent Ulusoy, Cihan Duran, Baris E Akin, Yildiray Yuzer, Yaman Tokat. Prospective comparative study of liver regeneration in right lobe living donor liver transplantation. International Liver Transplantation Society 15th Annual International Congress, July 8-11, 2009, New York, USA.

35. Onur Yaprak, Murat Dayangac, Koray Bas, Deniz Balci, Sahem Al Qusous, Yildiray Yuzer, Yaman Tokat. Use of livers from hepatitis B core antibody positive donors in living donor liver transplantation. International Liver Transplantation Society 15th Annual International Congress, July 8-11, 2009, New York, USA.

36. Onur Yaprak, Murat Dayangac, Koray Bas, Suleyman Uraz, Yildiray Yuzer, Yaman Tokat. Prophylaxis of HBV after living donor liver transplantation. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists, October 8-11, 2008, Istanbul, Türkiye.

37. Yaman Tokat, Murat Dayangac, Deniz Balci, Onur Yaprak, Koray Bas, Cihan Duran, Baris Akin, Refik Killi, Yildiray Yuzer. Living donor liver transplantation for hepatocellular carcinoma. 18th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists, October 8-11, 2008, Istanbul, Türkiye.

38. Murat Dayangac, Cemal B. Taner, Onur Yaprak, Cihan Duran, Baris E. Akin, Omer H. Ayanoglu, Refik Killi, Yildiray Yuzer, Yaman Tokat. The impact of middle hepatic vein harvest on remnant liver regeneration in right liver donors: a prospective study. International Liver Transplantation Society 13th Annual International Congress, July 9-12, 2008, Paris, France.

39. Burcin Taner, Murat Dayangac, Baris Akin, Deniz Balci, Suleyman Uraz, Cihan Duran, Refik Killi, Omer Ayanoglu, Yildiray Yuzer, Yaman Tokat. Urgent vs. elective donor preparation in adult LDLT. International Liver Transplantation Society 13th Annual International Congress, July 9-12, 2008, Paris, France.

40. Deniz Balci, Burcin C. Taner, Murat Dayangac, Baris Akin, Onur Yaprak, Derya Selamoglu, Cihan Duran,

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Suleyman Uraz, Huseyin Sen, Sitki Hayzaran, Refik Killi, Yildiray Yuzer, Yaman Tokat, Levent Yalcin. Two-year follow-up of microsurgical hepatic arterial reconstructions with intraoperative doppler evaluation in living donor liver transplantation: redo when necessary. International Liver Transplantation Society 13th Annual International Congress, July 9-12, 2008, Paris, France.

41. Murat Dayangac, Burcin C Taner, Baris Akin, Deniz Balci, Suleyman Uraz, Cihan Duran, Refik Killi, Omer Ayanoglu, Yildiray Yuzer, Yaman Tokat. Using marginal right lobe living liver donors: safety of expanding the margins. 13th Congress of the European Society for Organ Transplantation. 29 Sep-3 Oct 2007, Czech Republic.

42. Deniz Balci, Burcin C Taner, Murat Dayangac, Baris Akin, Cihan Duran, Suleyman Uraz, Huseyin Sen, Refik Killi, Omer Hilmi Ayanoglu, Hakan Senturk, Yildiray Yuzer, Yaman Tokat. Living donor liver transplantation for patients with hepatocellular carcinoma within and below Milan criteria. 13th Congress of the European Society for Organ Transplantation. 29 Sep-3 Oct 2007, Czech Republic.

43. Murat Dayangac, Burcin Taner, Deniz Balci, Zahide Kurt, Suleyman Uraz, Omer ayanoglu, Cihan Duran, Yildiray Yuzer. Small remnant liver volume after right lobe living donor hepatectomy: outcome of donors with a remnant liver volume of less than 30%. International Liver Transplantation Society 13th Annual International Congress, June 20-23, 2007, Rio de Janeiro, Brazil.

44. Burcin Taner, Murat Dayangac, Deniz Balci, Zahide Kurt, Baris Akin, Suleyman Uraz, Cihan Duran, Sameer Smadi, Yildiray Yuzer, Yaman Tokat. Donor safety in donor right hepatectomy with the inclusion of middle hepatic vain in living donor liver transplantation. International Liver Transplantation Society 13th Annual International Congress, June 20-23, 2007, Rio de Janeiro, Brazil.

45. Deniz Balci, Burcin C. Taner, Izzet Memi, Murat Dayangac, Baris Akin, Zahide Kurt, Cihan Duran, Huseyin Sen, Sanjay S. Negi, Omer H. Ayanoglu, Yildiray Yuzer, Refik Killi, Yaman Tokat, Levent Yalcin. Arterial reconstruction in living donor liver transplantation: analysis of 100 consecutive cases with 1 arterial thrombosis. International Liver Transplantation Society 13th Annual International Congress, June 20-23, 2007, Rio de Janeiro, Brazil.

46. Burcin Taner, Murat Dayangac, Baris Akin, Deniz Balci,

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Zahide Kurt, Omer Ayanoglu, Cihan Duran, Refik Killi, Suleyman Uraz, Yildiray Yuzer, Yaman Tokat. First dual left lobe liver transplantation in Turkey. International Liver Transplantation Society 13th Annual International Congress, June 20-23, 2007, Rio de Janeiro, Brazil.

47. Deniz Balci, Burcin C. Taner, Murat Dayangac, Baris Akin, Zahide Kurt, İzzet memi, Cihan Duran, Suleyman Uraz, Huseyin Sen, Omer H. Ayanoglu, Refik Killi, Levent Yalcin, Yildiray Yuzer, Yaman Tokat. Living donor liver transplantation for patients with hepatocellular carcinoma: Expanded criteria or more. International Liver Transplantation Society 13th Annual International Congress, June 20-23, 2007, Rio de Janeiro, Brazil.

48. Deniz Balcı, Burcin C Taner, Murat Dayangaç, Barış Akin, Cihan Duran, Süleyman Uraz, Hüseyin Şen, Refik Killi, Ömer Hilmi Ayanoğlu, Hakan Şentürk, Yıldıray Yüzer, Yaman Tokat. Living donor liver transplantation for patients with hepatocellular carcinoma within and below Milan kriteria. 13th Congress of the European Society for Organ Transplantation. 29 Sep-3 Oct 2007, Czech Republic.

49. Akin B, Taner B, Dayangac M, İpek C, Sitar G, Kurtoglu K, Balci D, Tokat Y. Late salvage of occluded arteriovenous fistulae: importance of venous mapping for operative planning. 5th InternationalCongress of the Vascular Access Society, 11-13 June 2007, Nice, France.

50. Akin B, Dayangac M, Taner B , Kurtoglu K, İpek C, Sitar G, Balci D, Tokat Y. Factors affecting early outcome after upper extremity arteriovenous fistula revision. 5th InternationalCongress of the Vascular Access Society, 11-13 June 2007, Nice, France.

51. Akin B, Dayangac M, Taner B, Sitar G, Kurtoglu K, İpek C, Balci D, Tokat Y. A database program for hemodialysis patient follow up; using computer technology for better communication between the surgeon and nephrologists. 5th InternationalCongress of the Vascular Access Society, 11-13 June 2007, Nice, France.

52. Akin B, Taner B, Dayangac M, Sitar G, Kurtoglu K, İpek C, Balci D, Tokat Y.The sites of stricture in radiocephalic and brachiocephalic arteriovenous fistulae. 5th InternationalCongress of the Vascular Access Society, 11-13 June 2007, Nice, France.

53. Akin B, Taner B, Dayangac M, Kurtoglu K, İpek C, Balci D, Tokat Y. Venovenostomy for repair of isolated proximal cephalic vein stenosis at brachiocephalic arteriovenous

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fistula. 5th InternationalCongress of the Vascular Access Society, 11-13 June 2007, Nice, France.

54. Deniz Balci, Baris Akin, Murat Dayangac, Zahide Kurt, Suleyman Uraz, Hakan Senturk, Yildiray Yuzer, Yaman Tokat. Hepatitis B prophylaxis using combination of low dose hepatitis B immunglobulin and lamivudine in liver transplantation. Joint International Cogress of the ILTS, ELITA, and LICAGE. May 3-6, 2006, Milan, Italy.

55. Suleyman Uraz, Deniz Balci, Baris Akin, Murat Dayangac, Zahide Kurt, Cihan Duran, Refik Killi, Yildiray Yuzer, Hakan Senturk, Yaman Tokat. Orthotopic liver transplantation for hepatic hemangioendothelioma. Joint International Cogress of the ILTS, ELITA, and LICAGE. May 3-6, Milan, 2006, Italy.

56. Emin B.Akin, Suleyman Uraz, Deniz Balcı, Murat Dayangac, Zahide Kurt, Cihan Duran, Omer Ayanoglu, Refik Killi, Yildiray Yüzer, Yaman Tokat. Small-for-size graft liver transplantation: can smaller size grafts be used? Joint International Cogress of the ILTS, ELITA, and LICAGE. May 3-6, 2006, Milan, Italy.

57. Cihan Duran, Baris Akin, Deniz Balci, Murat Dayangac, Zahide Kurt, Oznur Taman, Refik Killi, Yildiray Yüzer, Yaman Tokat. The role of MRCP assessing biliary anatomy in adult-to-adult living related liver transplant donors. Joint International Cogress of the ILTS, ELITA, and LICAGE. May 3-6, 2006, Milan, Italy.

58. Murat Dayangac, Yildiray Yuzer, Erdem Goker, Ulus Sanli, Bulent Karabulut, Canfeza Sezgin. Lipiodol as an antitumor agent: in vitro study in human hepatocellular carcinoma HepG2 cells. 12th World Congress of the International Association of Surgeons and Gastroenterologists, October 30th-November 2nd 2002, Istanbul.

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