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Long-term results after liver transplantation
Schrem H, Till N, Becker T, Bektas H, Manns MP, Strassburg CP, Klempnauer J.
Chirurg. 2008 Feb;79(2):121-9. Review. German. 


[Late stage stenoses of bile ducts after iatrogenic bile duct injuries following cholecystectomy]

Bektas H, Winny M, Schrem H, Becker T, Klempnauer J.

Zentralbl Chir. 2007 Dec;132(6):523-8. German.


Becker T, Ringe B, Nyibata M, Meyer zu Vilsendorf A, Schrem H, Luck R, Neipp M, Klempnauer J, Bektas H.
Pancreas transplantation with histidine-tryptophan-ketoglutarate (HTK) solution and University of Wisconsin (UW) solution: is there a difference?
JOP. 2007 May 9;8(3):304-11.

Bektas H, Schrem H, Winny M, Klempnauer J.

Surgical treatment and outcome of iatrogenic bile duct lesions after cholecystectomy and the impact of different clinical classification systems.

Br J Surg. 2007 May 11;


Lehner F, Bektas H.

Anwendung von TachoSil(R) in der Viszeralchirurgie

Video DVD mit Fallbeispielen.

September 2005. In Zusammenarbeit mit Nycomed Pharma GmbH


Bektas H., Schrem H,  Lehner F, Schmidt U, Kreczik H., Klempnauer J., Becker T.

The value of reoperative procedures after unusual reconstructions in the gastrointestinal tract associated with substantial morbidity.

J Gastrointesitanal Surg. 2006 Jan;10(1):111-22


Gebhardt T, Lorentz A, Detmer F, Trautwein C, Bektas H, Manns MP, Bischoff SC.

Growth, phenotype, and function of human intestinal mast cells are tightly regulated by transforming growth factor {beta}1.

Gut. 2005 Jul;54(7):928-34.


Bektas H, Schrem H, Lehner F, Lueck R, Becker T, Musholt T, Klempnauer J. 

Blood Transfers Infectious Immunologic Tolerance in MHC-Incompatible Heart Transplantation in Rats.

J Heart Lung Transplant. 2005 May;24(5):614-7.

PMID: 15896761 [PubMed - in process]


Neipp M, Bektas H, Lueck R, Ceylan D, Becker T, Klempnauer J, Nashan B.

Liver transplantation using organs from donors older than 60 years.

Transpl Int. 2004 Sep;17(8):416-23. Epub 2004 Aug 25.



Bittscheidt H, Bektas H, Winkler M, Klempnauer J.

Impact of donor-recipient MHC matching on experimental islet allotransplant survival in naive and presensitized Lewis rats.

Transplantation. 2004 Jul 15;78(1):162-4.



Bischoff SC, Schwengberg S, Lorentz A, Manns MP, Bektas H, Sann H, Levi-Schaffer F, Shanahan F, Schemann M.

Substance P and other neuropeptides do not induce mediator release in isolated human intestinal mast cells.

Neurogastroenterol Motil. 2004 Apr;16(2):185-93.



Lehner F, Becker T, Frericks B, Bektas H, Klempnauer J.

Angiodysplasia of the colon combined with portal hypertension and recurrent gastrointestinal bleeding

Zentralbl Chir. 2003 Dec;128(12):1093-6.



Litmathe J, Bektas H, Jorns A, Klempnauer J.

Time frame of pancreas allograft rejection: an immunogenetic analysis in MHC-disparate, presensitized inbred rat strains.

Transplant Proc. 2003 Dec;35(8):3147-52.



 Sellge G, Lorentz A, Gebhardt T, Levi-Schaffer F, Bektas H, Manns MP, Schuppan D, Bischoff SC.

Human intestinal fibroblasts prevent apoptosis in human intestinal mast cells by a mechanism independent of stem cell factor, IL-3, IL-4, and nerve growth factor.

J Immunol. 2004 Jan 1;172(1):260-7



Becker T, Lehner F, Bektas H, Meyer A, Luck R, Nashan B, Klempnauer J.

Surgical treatment for hilar cholangiocarcinoma (Klatskin's tumor)]

Zentralbl Chir. 2003 Nov;128(11):928-35.



Demirci G, Becker T, Nyibata M, Lueck R, Bektas H, Lehner F, Tusch G, Strassburg C, Schwarz A, Klempnauer J, Nashan B.

Results of combined and sequential liver-kidney transplantation.

Liver Transpl. 2003 Oct;9(10):1067-78. Erratum in: Liver Transpl. 2004 Feb;10(2):329.



Stief CG, Jonas U, Petry KU, Sohn C, Bektas H, Klempnauer J, Chavan A, Galanski M, Montorsi F.

Ureteric reconstruction.

BJU Int. 2003 Jan;91(2):138-42.



Piso P, Bellin T, Aselmann H, Bektas H, Schlitt HJ, Klempnauer J.

Results of combined gastrectomy and pancreatic resection in patients with advanced primary gastric carcinoma.

Dig Surg. 2002;19(4):281-5



Piso P, Bektas H, Werner U, Becker T, Aselmann H, Schlitt HJ, Klempnauer J.

Comparison between treatment results for gastric cancer in younger and elderly patients]

Zentralbl Chir. 2002 Apr;127(4):270-4. German.


Bektas H, Langer F, Piso P, Werner U, Musholt TJ, Lehner F, Becker T, Klempnauer J.

Neuroendocrine tumors of the stomach. Surgery therapy and prognosis]

Chirurg. 2002 Apr;73(4):331-5.



T. Becker , F. Lehner , H. Bektas , R. Lück , B. Nashan , J. Klempnauer

Stellenwert der Lebertransplantation beim hepatozellulären Karzinom

Der Onkologe 2001 Volume 7( 12):1296-1304



Bartels M, Fangmann J, Teebken O, Bektas H, Nagel E, Klempnauer J.

Primäre peritoneale Manifestation bei Echinokokkus-granulosus-Infektion.Eine seltene Entität.

Chir. Parxis  (2001), 58: 481-484


Piso P, Werner U, Benten D, Bektas H, Meuer U, Klempnauer J.

Early gastric cancer--excellent prognosis after curative resection in 87 patients irrespective of submucosal infiltration, lymph-node metastases or tumor size.

Langenbecks Arch Surg. 2001 Feb;386(1):26-30.


Bektas H, Lehner F, Werner U, Bartels M, Piso P, Tusch G, Schrem H, Klempnauer J.

Surgical therapy of cystic echinococcosis of the liver.

Zentralbl Chir. 2001 May;126(5):369-73. German.


Piso P, Bektas H, Werner U, Schlitt HJ, Kubicka S, Bornscheuer A, Manns M, Klempnauer J. Improved prognosis following peritonectomy procedures and hyperthermic intraperitoneal chemotherapy for peritoneal carcinomatosis from appendiceal carcinoma.

Eur J Surg Oncol. 2001 Apr;27(3):286-90.


Kulaksiz H, Bektas H, Cetin Y

Expression and cell-specific and membrane-specific localization of NHE-3 in the human and guinea pig upper gastrointestinal tract.

Cell Tissue Res. 2001 Mar;303(3):337-43


Piso P, Werner U, Bektas H, Kubicka S, Manns MP, Klempnauer J.

Peritoneal carcinosis in appendiceal carcinoma--at what price can the prognosis be improved?

Dtsch Med Wochenschr. 2000 Oct 27;125(43):1283-7.


Bektas H, Werner U, Kaaden S, Philippou S, Kloppel G, Klempnauer J.

Solid-pseudopapillary tumor of the pancreas--a rare and frequently misdiagnosed neoplasm.

Langenbecks Arch Surg. 1999 Feb;384(1):39-43



Nolte M, Werner M, Nasarek A, Bektas H, von Wasielewski R, Klempnauer J, Georgii A.

Expression of proliferation associated antigens and detection of numerical chromosome aberrations in primary human liver tumours: relevance to tumour characteristics and prognosis.

J Clin Pathol. 1998 Jan;51(1):47-51.



Klempnauer J, Grothues F, Bektas H, Wahlers T.

Acute mesenteric ischemia following cardiac surgery.

J Cardiovasc Surg (<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />Torino). 1997 Dec;38(6):639-43



Klempnauer J, Grothues F, Bektas H, Pichlmayr R.

Long-term results after surgery for acute mesenteric ischemia.

Surgery. 1997 Mar;121(3):239-43.



 Klempnauer J, Jorns A, Frericks BB, Bektas H.

Changes of antigenicity and loss of immunogenicity in long-standing class I MHC disparate pancreas allografts.

Transplant Proc. 1997 Feb-Mar;29(1-2):1151.


Bektas H, Jorns A, Klempnauer J.

Differential effect of donor-specific blood transfusions after kidney, heart, pancreas, and skin transplantation in major histocompatibility complex-incompatible rats.

Transfusion. 1997 Feb;37(2):226-30.


Meyer HJ, Klempnauer J, Bektas H, Pichlmayr R.

Surgical therapy of pancreatic carcinoma

Wien Med Wochenschr. 1997;147(1):14-8.


Klempnauer J, Grothues F, Bektas H, Pichlmayr R.

Results of portal thrombectomy and splanchnic thrombolysis for the surgical management of acute mesentericoportal thrombosis.

Br J Surg. 1997 Jan;84(1):129-32.


Bektas H, Schlitt HJ, Boker K, Brunkhorst R, Oldhafer KJ, Pichlmayr R.

Indications for liver transplantation in severe amanita phalloides mushroom poisoning

Chirurg. 1996 Oct;67(10):996-1001.


Lang H, Luck R, Weimann A, Brunkhorst R, Bartels M, Bektas H, Klempnauer J, Pichlmayr R.

Experience with color-coded duplex sonography after combined kidney/pancreas transplantation--preliminary results.

Bildgebung. 1996 Jun;63(2):90-3


J. Klempnauer, R. Lück, W. F. A. Hiller, H  Bektas, P. Meier, Pichlmayr R.

Pankreastransplantation- Zwischen Experiment und klinischer Methode.

Internist 1996; 37:289-294


Klempnauer J, Ridder GJ, Bektas H, Pichlmayr R.

[Possibilities and limitations of curative resections in cancers of the pancreas]

J Chir (Paris). 1996 May;133(3):117-22. Review. French. Erratum in: J Chir (Paris) 1996;133(8):400.


Klempnauer J, Luck R, Hiller WF, Bektas H, Meier P, Pichlmayr R.

Pancreas transplantation--between experiment and clinical method]

Internist (Berl). 1996 Mar;37(3):289-94. Review.


Grothues F, Bektas H, Klempnauer J.

Surgical therapy of acute mesenteric ischemia]

Langenbecks Arch Chir. 1996;381(5):275-82.


Klempnauer J, Ridder GJ, Bektas H, Pichlmayr R.

Extended resections of ductal pancreatic cancer--impact on operative risk and prognosis.

Oncology. 1996 Jan-Feb;53(1):47-53.


Klempnauer J, Ridder GJ, Bektas H, Pichlmayr R.

Surgery for exocrine pancreatic cancer--who are the 5- and 10-year survivors?

Oncology. 1995 Sep-Oct;52(5):353-9.




Klempnauer J, Ridder GJ, Bektas H, Pichlmayr R.

Multivariate analysis of prognostic factors after resection of ductal pancreatic carcinomas]

Langenbecks Arch Chir. 1995;380(3):133-8


Bektas H, Ehrenheim C, Hofmann U, Hundeshagen H.

Value of magnetic resonance tomography in diagnosis of tethered cord syndrome in children

Bildgebung. 1994 Jun;61(2):72-80



J Klempnauer, H  Bektas, H J  Meyer und R Pichlmayr

Chirurgische Therapie akuter mesenterialer Durchblutungsstörungen

Verdauungskrankheiten 1993; Heft 1; 18-26



Bektas H, Klempnauer J, Jorns A.

Differences in immunologic unresponsiveness after MHC-incompatible heart transplantation induced by donor-specific blood transfusion.

Transplant Proc. 1993 Oct;25(5):2870-1




Klempnauer J, Bektas H, Hiller WF, Steiniger B.

Spontaneous tolerance induced by MHC class I incompatible kidney grafts for subsequent pancreas transplants.

Transplant Proc. 1993 Oct;25(5):2856.

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