Koray Koçhan

Liv Hospital Vadistanbul

Gastroenterology

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Areas of Interests

Inflammatory Bowel Diseases
Celiac Disease
Hepatology (Liver Diseases)
Esophagus and Stomach diseases
Swallowing Disorders diagnostic methods
Esophageal Manometry and Ph Meter
Clinical Enteral and parenteral Nutrition
Biliary tract and Pancreatic Diseases
Gastrointestinal System endoscopy
Endosonographic Ultrasound & Endoscopic Retrograde Cholangiopancreatography

h-index

Education

Istanbul University Cerrahpaşa Faculty of Medicine English Medicine Program
Istanbul University Cerrahpaşa Faculty of Medicine, Department of Internal Medicine.
Health Sciences University Haydarpaşa Numune Training and Research Hospital Gastroenterology Clinic
Bezmialem Vakıf University Faculty of Medicine, Department of Internal Medicine, Department of Gastroenterology

Experience

Liv Hospital Vadi
Bezmialem Vakıf University Faculty of Medicine, Department of Internal Medicine, Department of Gastroenterology - Gastroenterology Specialist
Health Sciences University Haydarpaşa Numune Training and Research Hospital Gastroenterology Clinic - Gastroenterology Specialization training and Specialist Doctor
Ağrı State Hospital - Gastroenterology Specialist
Bayburt State Hospital - Internal Medicine Specialist
Istanbul University Cerrahpaşa Faculty of Medicine Internal Medicine USA - Internal Medicine specialty training

İnce AT, Silahtaroğlu G, Seven G, Koçhan K, Yıldız K, Şentürk H. Early prediction of the severe course, survival, and ICU requirements in acute pancreatitis by artificial intelligence. Pancreatology. 2023 Mar;23(2):176-186. doi: 10.1016/j.pan.2022.12.005. Epub 2022 Dec 30. PMID: 36610872.
Şentürk H, Köker İH, Koçhan K, Kiremitçi S, Seven G, İnce AT. Endoscopic ultrasound-guided gastrojejunostomy with a direct technique without previous intestinal filling using a tubular fully covered self-expandable metallic stent. Clin Endosc. 2023 Jul 3. doi: 10.5946/ce.2023.022. Epub ahead of print. PMID: 37430402.
İnce AT, Seven G, Koçhan K, Kiremitçi S, Yıldız K, Şentürk H. The course of acute pancreatitis in patients with different BMI groups. Pancreatology. 2022 Apr;22(3):348-355. doi: 10.1016/j.pan.2022.03.009. Epub 2022 Mar 17. PMID: 35322789.
Kochan K, Keskin EB, Seven G, Bas S, Kiremitci S, Gecer M, Senturk H. Effects of tissue cytomegalovirus quantitative polymerase chain reaction in the management of ulcerative colitis flare-ups: Should we wave acid? Arab J Gastroenterol. 2021 Dec;22(4):297-304. doi: 10.1016/j.ajg.2021.11.005. Epub 2021 Dec 3. PMID: 34872846.
Gonen C, Surmelioglu A, Kochan K, Ozer S, Aslan E, Tilki M. Impact of intestinal ultrasound with a portable system in the management of Crohn's disease. Gastroenterol Rep (Oxf). 2020 Dec 10;9(5):418-426. doi: 10.1093/gastro/goaa088. PMID: 34733527; PMCID: PMC8560037.
Köker IH, Gultepe BS, Kiremitçi S, Koçhan K, Ince AT, Keskin EB, Senturk H. Can serum histone H4 levels predict mucosal healing in Crohn's disease? Prz Gastroenterol. 2021;16(2):127-131. doi: 10.5114/pg.2021.106663. Epub 2021 Jun 4. PMID: 34276839; PMCID: PMC8275961.
Seven G, Silahtaroglu G, Kochan K, Ince AT, Arici DS, Senturk H. Use of Artificial Intelligence in the Prediction of Malignant Potential of Gastric Gastrointestinal Stromal Tumors. Dig Dis Sci. 2022 Jan;67(1):273-281. doi: 10.1007/s10620-021-06830-9. Epub 2021 Feb 6. PMID: 33547537.
Ince AT, Keskin EB, Gultepe BS, Kochan K, Koker IH, Senturk H. The relationship of Serum Histone H3.3 and H4 with chronic Hepatitis B. J Pak Med Assoc. 2020 Sep;70(9):1596-1600. doi: 10.5455/JPMA.19365. PMID: 33040116.
Seven G, Kochan K, Caglar E, Kiremitci S, Koker IH, Senturk H. Evaluation of Ki67 Index in Endoscopic Ultrasound-Guided Fine Needle Aspiration Samples for the Assessment of Malignancy Risk in Gastric Gastrointestinal Stromal Tumors. Dig Dis. 2021;39(4):407-414. doi: 10.1159/000511994. Epub 2020 Oct 5. PMID: 33017820.
Biberci Keskin E, Taşlıdere B, Koçhan K, Gülen B, İnce AT, Şentürk H. Comparison of scoring systems used in acute pancreatitis for predicting major adverse events. Gastroenterol Hepatol. 2020 Apr;43(4):193-199. English, Spanish. doi: 10.1016/j.gastrohep.2019.10.008. Epub 2020 Jan 7. PMID: 31924368.
Biberci Keskin E, Koçhan K, Köker İH, Gülen B, İnce AT, Şentürk H. The role of plasma exchange in hypertriglyceridemia-induced acute pancreatitis. Eur J Gastroenterol Hepatol. 2019 Jun;31(6):674-677. doi: 10.1097/MEG.0000000000001399. PMID: 30896552.
Erdem E, Kochan K, Paker N, Gokden Y, Degirmenci AS, Kocak F, Gonen C. The correlation between tenascin-C expression, and formation of intestinal stricture. North Clin Istanbul 2015 Jan 24;1(3):127-131. doi: 10.14744/nci.2014.13008. PMID: 28058317; PMCID: PMC5175029.
Yasar B, Kayadibi H, Abut E, Benek D, Kochan K, Gonen C. The histological quality and adequacy of diminutive colorectal polyps resected using jumbo versus hot biopsy forceps. Dig Dis Sci. 2015 Jan;60(1):217-25. doi: 10.1007/s10620-014-3320-2. Epub 2014 Aug 12. PMID: 25112723.
Yeşil A, Gönen C, Senateş E, Paker N, Gökden Y, Koçhan K, Erdem ED, Gündüz F. Relationship between neutrophil gelatinase-associated lipocalin (NGAL) levels and inflammatory bowel disease type and activity. Dig Dis Sci. 2013 Sep;58(9):2587-93. doi: 10.1007/s10620-013-2676-z. Epub 2013 Apr 30. PMID: 23633156.
Aslan, E., Saltürk, A., Koçhan, K., Özer, S., Şahin, H., Bedir, O., ... & Güzelbulut, F. Evaluation of the efficacy and safety of self-expanding metal stents in malignant esophageal strictures due to esophageal and extraoesophageal cancers: A retrospective cross-sectional cohort study. HAYDARPAŞA NUMNE MEDICAL JOURNAL, 64(3), 0-0.
Koçhan K. , Erdem E. , Babacan G. , Paker N. , Gökden Y. , Saltürk A. D. , Özer S. , Koçak F. , Gönen C. The relationship between endoscopic activity indexes and laboratory parameters in the activity determination of inflammatory bowel diseases. Academic Journal of Gastroenterology. 2014; 13(3): 101-106
YEŞİL, A., COŞGUN, S., ERDEM, E., KOÇHAN, K., GÜNDÜZ, F., & GÖNEN, C. (2013). The relationship between fibrosis level and blood neutrophil to lymphocyte ratio in chronic HBV patients. Ibid., 38(13), 37-14.
Erdem, E., Koçhan, K., Paker, N., Gokden, Y., Degirmenci, A. S., Koçak, F., & Gonen, C. (2014). The correlation between tenascin-C expression, and formation of intestinal stricture. Northern Clinics of Istanbul, 1(3), 127.
Saltürk, A. D., Arslan, E., Gökden Y., Koçhan K., Özer, S., & Gönen C. (2016). Rare first symptom of Crohn's disease: acute pancreatitis. academic journal of gastroenterology, 15(2), 88-89.