2002-2004
Studium der Humanmedizin – Georg August Universität Göttingen (Vorklinik)

2004-2008
Studium der Humanmedizin – Rheinisch- Westfälische Technische Hochschule Aachen (Klinik)

2008
Approbation als Arzt

2009
Promotion: Die Lernkurve der laparoskopischen Cholezystektomie in Westfalen-Lippe – Eine flächendeckende Analyse von 187.810 Patienten von 1993-2005 anhand eines neuen Lernparameters (Ruhr-Universität Bochum)

2009-2011
Assistenzarzt in der Klinik für Innere Medizin, Evangelisches Krankenhaus Herne (Prof. Dr. Jockenhövel, Dr. Freistühler)

2010
Fachkunde Strahlenschutz für Notfalldiagnostik

2011-2019
Assistenzarzt/ Oberarzt in der Klinik für Gastroenterologie und Hepatologie, Universitätsklinikum Essen (Prof. Dr. Gerken, Prof. Dr. Wedemeyer)

2012
GCP Investigator (Betreuung klinischer Studien)

2014
Facharzt für Innere Medizin

2017
Facharzt für Innere Medizin und Gastroenterologie

2018
DGVS Zertifikat Hepatologie

2018
Fachkunde Strahlenschutz durchleuchtungsgestützte Endoskopie

2019
DGVS Zertifikat Chronisch Entzündliche Darmerkrankungen

2019
Habilitation und venia legendi für das Fach Innere Medizin: Nicht-invasive Diagnostik und Therapie der portalen Hypertension als Komplikation der Leberzirrhose (Universitätsklinikum Essen)

2019-2022
Chefarzt der Klinik für Innere Medizin/ Gastroenterologie, St. Nikolaus-Stiftshospital Andernach

2021
Zusatzbezeichnung Infektiologie

seit 2022
Chefarzt der Klinik für Innere Medizin/ Gastroenterologie, St. Elisabeth Hospital Iserlohn

2022
DGVS Zertifikat Onkologische Gastroenterologie

• Deutsche Gesellschaft für Verdauungs- und Stoffwechselkrankheiten (DGVS)
• Gesellschaft für Gastroenterologie in Nordrhein-Westfalen
• Berufsverband Gastroenterologie Deutschland (BVGD)
• Bund Deutscher Internisten (BDI)
• Arbeitsgemeinschaft leitender gastroenterologischer Krankenhausärzte (ALGK)
• European Society of Gastrointestinal Endoscopy (ESGE)

• Diagnostic Dilemma in a Patient with Jaundice: How to Differentiate between Autoimmune Pancreatitis, Primary Sclerosing Cholangitis and Pancreas Carcinoma. Buechter M, Klein CG, Kloeters C, Gerken G, Canbay A, Kahraman A. Case Rep Gastroenterol. 2012 Jan;6(1):211-6.
• Tacrolimus as a reasonable alternative in a patient with steroid-dependent and thiopurine-refractory autoimmune pancreatitis with IgG4-associated cholangitis. Buechter M, Klein CG, Kloeters C, Schlaak JF, Canbay A, Gerken G, Kahraman A. Z Gastroenterol. 2014 Jun;52(6):564-8.
• Acute occlusion of Ductus Pancreaticus due to a growing Abdominal Aortic Aneurysm: Uncommon cause of Silent Severe Acute Pancreatitis – Case Report and Review of literature. Lieder HR, Buechter M, Grueneisen J, Gerken G, Canbay A, Kahraman A. Case Rep Intern Med. 2016;3(1):38-42.
• Spleen and Liver Stiffness Is Positively Correlated with the Risk of Esophageal Variceal Bleeding. Buechter M, Kahraman A, Manka P, Gerken G, Jochum C, Canbay A, Dechêne A. Digestion. 2016;94(3):138-144.
• Performance and Utility of Transient Elastography and Non-Invasive Markers of Liver Fibrosis in Patients with Autoimmune Hepatitis: A Single Centre Experience. E Anastasiou O, Buechter M, A Baba H, Korth J, Canbay A, Gerken G, Kahraman A. Hepat Mon. 2016 Oct 31;16(11):e40737.
• Multimodal therapy of recurrent and refractory bleeding from esophageal varices – case report and review of the literature. Buechter M, Penndorf V, Canbay A, Theysohn JM, Dechêne A. Z Gastroenterol. 2016 Dec;54(12):1320-1326.
• Rescue therapy of a refractory rectal variceal bleeding in a cirrhotic patient by Linton-Nachlas tube and TIPS implantation in combination with variceal embolization. Buechter M, Theysohn JM, Kahraman A, Manka P, Gerken G, Canbay A, Dechêne A. Z Gastroenterol. 2017 Jan;55(1):50-55.
• De-Novo Autoimmune Hepatitis with Consecutive Acute Liver Failure Induced by Hepatitis E Infection: A Case Report. Thodou V, Buechter M, Canbay A, Baba HA, Kalsch J, Gerken G, Kahraman A. Hepat Mon. 17(3): e40744 , DOI: 10.5812/hepatmon.40744.
• Outcome and Genetic Factors in IgG4-Associated Autoimmune Pancreatitis and Cholangitis: A Single Center Experience. Buechter M, Manka P, Heinemann FM, Lindemann M, Juntermanns B, Canbay A, Gerken G, Kahraman A. Gastroenterol Res Pract. 2017;2017:6126707.
• Partial spleen embolization reduces the risk of portal hypertension-induced upper gastrointestinal bleeding in patients not eligible for TIPS implantation. Buechter M, Kahraman A, Manka P, Gerken G, Dechêne A, Canbay A, Wetter A, Umutlu L, Theysohn JM. PLoS One. 2017 May 11;12(5):e0177401.
• IgG4-associated inflammatory pseudotumor with bilobar hepatic foci. Buechter M, Gerken G, Kahraman A. Dtsch Arztebl Int 2018; 115(11): 181; DOI: 10.3238/arztebl.2018.0181.
• Spleen stiffness is positively correlated with HVPG and decreases significantly after TIPS implantation. Buechter M, Manka P, Theysohn JM, Reinboldt M, Canbay A, Kahraman A. Dig Liver Dis. 2017 Oct 10. pii: S1590-8658(17)31251-3.
• Transjugular Intrahepatic Portosystemic Shunt in Patients with Portal Hypertension: Patency Depends on Coverage and Interventionalist’s Experience. Buechter M, Manka P, Gerken G, Canbay A, Blomeyer S, Wetter A, Altenbernd J, Kahraman A, Theysohn JM. Dig Dis. 2018;36(3):218-227.
• Course of hepatitis E infection in a patient with rheumatoid arthritis and autoimmune hepatitis: A case report. Thodou V, Buechter M, Manka P, Gerken G, Kahraman A. Medicine (Baltimore). 2017 Dec;96(51):e9407.
• Potential triggering factors of acute liver failure as a first manifestation of autoimmune hepatitis – a single center experience of 52 adult patients. Buechter M, Manka P, Heinemann FM, Lindemann M, Baba HA, Schlattjan M, Canbay A, Gerken G, Kahraman A. World J Gastroenterol. 2018 Apr 7;24(13):1410-1418.
• Comparison of the sixth and the seventh editions of the UICC classification for intrahepatic cholangiocarcinoma. Juntermanns B, Kaiser GM, Orth L, Reis H, Jaradat D, Sydor S, Buechter M, Kasper S, Mathé Z, Sotiropoulos GC, Baba HA, Canbay A, Paul A, Fingas CD. Eur J Med Res. 2018 Jun 1;23(1):29.
• CA19-9 in intrahepatic cholangiocarcinoma: A diagnostic and prognostic armamentarium? Juntermanns B, Kaiser GM, Itani-Gutierrez S, Heuer M, Buechter M, Kahraman A, Reis H, Kasper S, Paul A, Fingas CD. Chirurg. 2018 Jun;89(6):466-471.
• Liver maximum capacity (LiMAx) test as a helpful prognostic tool in acute liver failure: a case report. Buechter M, Gerken G, Hoyer DP, Bertram S, Theysohn JM, Thodou V, Kahraman A. BMC Anesthesiol. 2018 Jun 20;18(1):71.
• Spleen Stiffness Differentiates Between Acute and Chronic Liver Damage and Predicts Hepatic Decompensation. Meister P, Dechene A, Buechter M, Kälsch J, Gerken G, Canbay A, Jochum C. J Clin Gastroenterol. 2019 Jul;53(6):457-463.
• Liver Maximum Capacity: A Novel Test to Accurately Diagnose Different Stages of Liver Fibrosis. Buechter M, Thimm J, Baba HA, Bertram S, Willuweit K, Gerken G, Kahraman A. Digestion. 2018 Oct 2:1-10.
• Immunglobulin G4-Related Pancreatitis: Our Experience in a German Cohort of 59 Patients. Buechter M, Gerken G, Kahraman A. Pancreas. 2019 Mar;48(3):e17-e19.
• Risk Factors for High-Mortality on the Liver Transplant Waiting List in Times of Organ-Shortage – A Single-Center Analysis. Husen P, Hornung J, Benko T, Klein C, Willuweit K, Buechter M, Saner FH, Paul A, Treckmann JW, Hoyer DP. Ann Transplant. 2019 May 3;24:242-251.
• Computed-tomography-guided biopsy in suspected spondylodiscitis: unicenter experience including 201 biopsy procedures. Özmen D, Özkan N, Guberina N, Fliessbach K, Suntharalingam S, Theysohn J, Buechter M, Forsting M, Buer J, Dudda M, Jäger M, Wetter A. Orthop Rev (Pavia). 2019 Mar 22;11(1):7793.
• Large Cecal Varices as Cause of Lower Gastrointestinal Bleeding. Buechter M, Gerhardy N, Wetter A. Dtsch Arztebl Int. 2019 Oct 11;116(41):690.
• Predictive value of spleen stiffness in hepatocellular carcinoma. Buechter M, Kahraman A. Hepatobiliary Surg Nutr. 2020 Feb;9(1):101-102.
• Enzymatic liver function measured by LiMAx – a reliable diagnostic and prognostic tool in chronic liver disease. Buechter M, Kersting S, Gerken G, Kahraman A. Sci Rep. 2019 Sep 19;9(1):13577.
• Measuring the density of iodine depositions: Detecting an invisible residual tumor after conventional transarterial chemoembolization. Haubold J, Ludwig JM, Li Y, Buechter M, Wetter A, Umutlu L, Theysohn JM. PLoS One. 2020 Jan 29;15(1):e0227972.
• HLA class II Donor Specific Antibodies are associated with Graft Cirrhosis after Liver Transplant independent of the mean Fluorescence Intensity Level. Willuweit K, Frey A, Bienek L, Heinold A, Buechter M, Horn P, Wedemeyer H, Herzer K. BMC Gastroenterol (2020) 20:288.
• Evaluation of liver function before and during therapy. Buechter M, Gerken G. Hepatoma Res 2021;7:48.
• Enzymatic liver function measured by LiMAx is superior to current standard methods in predicting transplant‑free survival after TIPS-implantation. Rashidi‑Alavijeh J, Kahraman A, Gerken G, Theysohn JM, Willuweit K, Hoyer DP, Lange CM, Buechter M. Sci Rep. (2021) 11:13834.
• Non-invasive detection of liver cirrhosis – the “Essen algorithm”. Buechter M, Gerken G. Hepatoma Res 2021;7:57.
• ERCP in critically ill patients is safe and does not increase mortality. Buechter M, Katsounas A, Saner FH, Gerken G, Canbay A, Dechene A. Medicine (2022) 101:5.
• Performance of the LiMAx test, fibrinogen, and transient elastography in patients with acute liver injury. Kreimeyer H, Buechter M, Best J, Gieseler RK, Katsounas A, Sowa JP, Gerken G, Canbay A, Manka P, Bechmann LP. Dig Dis. 2022 Feb 22. doi: 10.1159/000523696.