Areas of Expertise
  • Endoscopy colonoscopy
  • Advanced endoscopic procedures
  • Gastric balloon placement
  • Liver diseases
  • Stomach and intestinal polyps
  • Bile duct diseases
  • Inflammatory bowel diseases

Education and Training

  • 2003–2009: Dicle University Faculty of Medicine, Diyarbakır
  • 2010–2015: Ankara Numune Hospital – Internal Medicine Residency
  • 2016–2020: İstanbul Ümraniye Training and Research Hospital – Gastroenterology Fellowship

Experience

  • 2009–2010: Diyarbakır Bismil No. 3 Health Center, General Practitioner

  • 2015–2016: Diyarbakır Ergani State Hospital, Internal Medicine Specialist

  • 2020–2021: Kahramanmaraş Necip Fazıl City Hospital, Gastroenterology Specialist

  • 2021–2022: Ordu State Hospital, Gastroenterology Specialist

  • 2022–2023: Medicana Ataşehir Hospital

Professional Memberships

  • Turkish Association for the Study of the Liver

  • Turkish Gastroenterology Association

  • Istanbul Medical Chamber

Peer-Reviewed International Journal Articles

  • Sayar S., Kurbuz K., Kahraman R., Caliskan Z., Atalay R., Ozturk O., Doganay H.L., Ozdil K. (2020). A practical marker to determine acute severe ulcerative colitis: CRP/albumin ratio. North Clin Istanbul, 7(1), 49–55. doi: 10.14744/nci.2018.78800

  • Sayar S., Aykut H., Kaya O., Kurbuz K., Ak C., Gökçen P., Bilgiç N.M., Adalı G., Kahraman R., Doganay L., Ozdil K. (2021). Bone mineral density screening and the frequency of osteopenia/osteoporosis in Turkish adult patients with celiac disease. Turk J Gastroenterol, 32(7), 600–607. doi: 10.5152/tjg.2021.20313

  • Sayar S., Ayranci G., Kurbuz K., Ak C., Tarikçi Kiliç E., Kahraman R., Atalay R., Ozturk O., Caliskan Z., Adali G., Doganay L., Ozdil K. (2020). High frequency of gastric cancer precursor lesions in patients with gastric xanthelasma: a prospective case-control study. Eur J Gastroenterol Hepatol, 32(9), 1130–1134. doi: 10.1097/MEG.0000000000001795

  • Sayar S., Kurbuz K., Kahraman R., Ozturk O., Caliskan Z., Doganay H.L., Ozdil K. (2020). Risk of hepatitis B reactivation during anti-TNF therapy: evaluation of patients with past hepatitis B infection. Turk J Gastroenterol, 31(7), 522–528. doi: 10.5152/tjg.2020.19295

  • Sayar S., Atalay R., Çakmak Ş., Ayranci G., Kurbuz K., Kahraman R., Caliskan Z., Ozturk O., Demirdag H., Adali G., Ozdil K., Doganay H.L. (2020). Diagnostic performance of non-invasive fibrosis indexes in hepatitis B-related fibrosis. Viral Hepatitis Journal, 26(2), 78–84. doi: 10.4274/vhd.galenos.2020.2019.0038

Posters and Conference Abstracts

  • 2016 National Gastroenterology Congress
    • [P-147] Toxic Hepatitis Case Related to Ecstasy
      Kurbuz K., Ayaz B., Sayar S., Ozdil K., Bilgiç N.M., Bulur A., Caliskan Z., Ozturk O., Kahraman R., Demirdag H., Atalay R., Doganay H.L.

  • 2017 National Gastroenterology Congress
    • [EP-191] A Rare Case of Pancreatitis Treated with Anti-TNF
      Kurbuz K., Sayar S., Bilgiç N.M., Ozdil K., Doganay L., Caliskan Z., Kahraman R., Demirdag H., Ozturk O., Atalay R.

  • 2018 National Gastroenterology Congress
    • [EP-061] IgG4-Related Esophagitis Case Report
      Kurbuz K., Bilgiç N.M., Sayar S., Ozturk O., Zemheri I.E., Caliskan Z., Demirdag H., Kahraman R., Atalay R., Doganay H.L., Ozdil K.

    • [EP-064] A Rare Upper Gastrointestinal Bleeding Case Report
      Kurbuz K., Bilgiç N.M., Sayar S., Ozturk O., Ak C., Caliskan Z., Demirdag H., Kahraman R., Atalay R., Doganay H.L., Ozdil K.

    • [EP-065] Eosinophilic Esophagitis Case Report
      Kurbuz K., Bilgiç N.M., Sayar S., Ozturk O., Ak C., Caliskan Z., Demirdag H., Kahraman R., Atalay R., Doganay H.L., Ozdil K., Aksoy N.

  • 2019 HEBIPA Congress
    • Abstract 0138: Cholangiocarcinoma Presenting with Choledocholithiasis
      Kurbuz K., Kahraman R., Ak C., Bilgiç N.M., Sayar S., Adalı G., Caliskan Z., Ozturk O., Gökçen P., Doganay H.L., Ozdil K.

    • Abstract 0141: Early-Age Pancreatic Cancer Presenting with Autoimmune Pancreatitis
      Kurbuz K., Ak C., Sayar S., Bilgiç N.M., Kahraman R., Adalı G., Caliskan Z., Ozturk O., Gökçen P., Doganay H.L., Ozdil K.

    • Abstract 0174: Young-Onset Klatskin Tumor Developing on Primary Biliary Cholangitis
      Kurbuz K., Ak C., Sayar S., Bilgiç N.M., Kahraman R., Adalı G., Caliskan Z., Ozturk O., Gökçen P., Doganay H.L., Ozdil K.

Resume

Education and Training

  • 2003–2009: Dicle University Faculty of Medicine, Diyarbakır
  • 2010–2015: Ankara Numune Hospital – Internal Medicine Residency
  • 2016–2020: İstanbul Ümraniye Training and Research Hospital – Gastroenterology Fellowship

Experience

  • 2009–2010: Diyarbakır Bismil No. 3 Health Center, General Practitioner

  • 2015–2016: Diyarbakır Ergani State Hospital, Internal Medicine Specialist

  • 2020–2021: Kahramanmaraş Necip Fazıl City Hospital, Gastroenterology Specialist

  • 2021–2022: Ordu State Hospital, Gastroenterology Specialist

  • 2022–2023: Medicana Ataşehir Hospital

Professional Memberships

  • Turkish Association for the Study of the Liver

  • Turkish Gastroenterology Association

  • Istanbul Medical Chamber

Publications

Peer-Reviewed International Journal Articles

  • Sayar S., Kurbuz K., Kahraman R., Caliskan Z., Atalay R., Ozturk O., Doganay H.L., Ozdil K. (2020). A practical marker to determine acute severe ulcerative colitis: CRP/albumin ratio. North Clin Istanbul, 7(1), 49–55. doi: 10.14744/nci.2018.78800

  • Sayar S., Aykut H., Kaya O., Kurbuz K., Ak C., Gökçen P., Bilgiç N.M., Adalı G., Kahraman R., Doganay L., Ozdil K. (2021). Bone mineral density screening and the frequency of osteopenia/osteoporosis in Turkish adult patients with celiac disease. Turk J Gastroenterol, 32(7), 600–607. doi: 10.5152/tjg.2021.20313

  • Sayar S., Ayranci G., Kurbuz K., Ak C., Tarikçi Kiliç E., Kahraman R., Atalay R., Ozturk O., Caliskan Z., Adali G., Doganay L., Ozdil K. (2020). High frequency of gastric cancer precursor lesions in patients with gastric xanthelasma: a prospective case-control study. Eur J Gastroenterol Hepatol, 32(9), 1130–1134. doi: 10.1097/MEG.0000000000001795

  • Sayar S., Kurbuz K., Kahraman R., Ozturk O., Caliskan Z., Doganay H.L., Ozdil K. (2020). Risk of hepatitis B reactivation during anti-TNF therapy: evaluation of patients with past hepatitis B infection. Turk J Gastroenterol, 31(7), 522–528. doi: 10.5152/tjg.2020.19295

  • Sayar S., Atalay R., Çakmak Ş., Ayranci G., Kurbuz K., Kahraman R., Caliskan Z., Ozturk O., Demirdag H., Adali G., Ozdil K., Doganay H.L. (2020). Diagnostic performance of non-invasive fibrosis indexes in hepatitis B-related fibrosis. Viral Hepatitis Journal, 26(2), 78–84. doi: 10.4274/vhd.galenos.2020.2019.0038

Posters and Conference Abstracts

  • 2016 National Gastroenterology Congress
    • [P-147] Toxic Hepatitis Case Related to Ecstasy
      Kurbuz K., Ayaz B., Sayar S., Ozdil K., Bilgiç N.M., Bulur A., Caliskan Z., Ozturk O., Kahraman R., Demirdag H., Atalay R., Doganay H.L.

  • 2017 National Gastroenterology Congress
    • [EP-191] A Rare Case of Pancreatitis Treated with Anti-TNF
      Kurbuz K., Sayar S., Bilgiç N.M., Ozdil K., Doganay L., Caliskan Z., Kahraman R., Demirdag H., Ozturk O., Atalay R.

  • 2018 National Gastroenterology Congress
    • [EP-061] IgG4-Related Esophagitis Case Report
      Kurbuz K., Bilgiç N.M., Sayar S., Ozturk O., Zemheri I.E., Caliskan Z., Demirdag H., Kahraman R., Atalay R., Doganay H.L., Ozdil K.

    • [EP-064] A Rare Upper Gastrointestinal Bleeding Case Report
      Kurbuz K., Bilgiç N.M., Sayar S., Ozturk O., Ak C., Caliskan Z., Demirdag H., Kahraman R., Atalay R., Doganay H.L., Ozdil K.

    • [EP-065] Eosinophilic Esophagitis Case Report
      Kurbuz K., Bilgiç N.M., Sayar S., Ozturk O., Ak C., Caliskan Z., Demirdag H., Kahraman R., Atalay R., Doganay H.L., Ozdil K., Aksoy N.

  • 2019 HEBIPA Congress
    • Abstract 0138: Cholangiocarcinoma Presenting with Choledocholithiasis
      Kurbuz K., Kahraman R., Ak C., Bilgiç N.M., Sayar S., Adalı G., Caliskan Z., Ozturk O., Gökçen P., Doganay H.L., Ozdil K.

    • Abstract 0141: Early-Age Pancreatic Cancer Presenting with Autoimmune Pancreatitis
      Kurbuz K., Ak C., Sayar S., Bilgiç N.M., Kahraman R., Adalı G., Caliskan Z., Ozturk O., Gökçen P., Doganay H.L., Ozdil K.

    • Abstract 0174: Young-Onset Klatskin Tumor Developing on Primary Biliary Cholangitis
      Kurbuz K., Ak C., Sayar S., Bilgiç N.M., Kahraman R., Adalı G., Caliskan Z., Ozturk O., Gökçen P., Doganay H.L., Ozdil K.

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