A Comparison of the Efficacy and Safety of Ustekinumab and Upadacitinib in Biologically Experienced Ulcerative Colitis Patients
BIOMEDICINES, vol. 13, no. 10, pp. 2455–
Osman Özdoğan, Serkan Yaraş, Mehmet Kasım Aydın, Fehmi Ateş, Engin Altıntaş, Orhan Sezgin
Upadacitinib in Biologic-Experienced Inflammatory Bowel Disease: Real-World Efficacy, Safety, and Laboratory Outcomes.
Medicina (Kaunas, Lithuania), vol. 61, no. 9, pp. 1692–
Osman Özdoğan, Serkan Yaraş
Hepatitis E Virus (HEV) Seroprevalence in Cryptogenic Cirrhosis: From Evidence of High Frequency to the Impact on Disease Progression
MEDICINA-LITHUANIA, vol. 61, no. 11, pp. 2014–16
Serkan Yaraş, Osman Özdoğan, Seda Tezcan Ülger, Gönül Aslan, Eyüp Naci Tiftik, Orhan Sezgin
The Triage Role of Transabdominal Ultrasonography (TAUS) in the Diagnostic Management of Pancreatic and Distal Biliary Pathologies: A Comparative Efficacy Analysis with Endoscopic Ultrasonography (EUS)
DIAGNOSTICS, vol. 15, no. 23, pp. 2955–2955
Serkan Yaraş, Osman Özdoğan, Orhan Sezgin
Turkish Society of Gastroenterology: Pancreas Working Group, Acute Pancreatitis Committee Consensus Report
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 35, no. Supplement 1, pp. S1–S44
Deniz Öğütmen Koç, Osman Özdoğan, Engin Altıntaş, Göksel Bengi, Özlem Gül, Elmas Kasap, Yeşim Özlem ...
Prevalence of Pancreatic Steatosis and Its Associated Factors in Turkey: A Nation-Wide Multicenter Study
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 35, no. 3, pp. 239–254
Orhan Sezgin, Osman Özdoğan, Serkan Yaraş, Engin Altıntaş, Mehmet Cindoruk, Elmas Kasap, Hakan Ünal,...
Isolated bilateral metastatic mass of malignant melanoma as shown by F-18 Fluorodeoxyglocose Positron Emission Tomography/Computed Tomography
Molecular Oncologic Imaging, vol. 4, no. 1, pp. 4–6
Zehra Pınar Koç, Pınar Pelin Özcan, Osman Özdoğan, Mehmet Yaldız
Controlling Nutritional Status (CONUT) Score and Prognostic Nutritional Index (PNI) Are Good Candidates for Prognostic Markers for Acute Pancreatitis
MEDICINA-LITHUANIA, vol. 59, no. 1, pp. 70–8
Mustafa Zanyar Akkuzu, Engin Altıntaş, Serkan Yaraş, Orhan Sezgin, Fehmi Ateş, Enver Üçbilek, Enver ...
The Role of Intravenous Hydration in the Prevention of PostEndoscopic Retrograde Cholangiopancreatography Pancreatitis
AVES YAYINCILIK A.Ş., vol. 2, no. 1, pp. 9–13
Gizem Kırmızer, Gizem Kırmızıer, Serkan Yaraş, Osman Özdoğan, Engin Altıntaş, Enver Üçbilek, Fehmi A...
Pancreatic Steatosis Is Associated with Both Metabolic Syndrome and Pancreatic Stiffness Detected by Ultrasound Elastography
DIGESTIVE DISEASES AND SCIENCES, vol. 67, no. 1, pp. 293–304
Orhan Sezgin, Serkan Yaraş, Osman Özdoğan
Real-world efficacy and safety of Ledipasvir plus Sofosbuvir and Ombitasvir/Paritaprevir/Ritonavir ± Dasabuvir combination therapies for chronic hepatitis C: A Turkish experience
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 31, no. 12, pp. 883–893
Mustafa Bülent Değertekin, Mehmet Demir, Enver Üçbilek, Ulus Salih Akarca, Osman Özdoğan, Haluk Tarı...
The course and prognostic value of increased pancreas stiffness detected by ultrasound elastography during acute pancreatitis
PANCREATOLOGY, vol. 21, no. 7, pp. 1285–1290
Orhan Sezgin, Serkan Yaraş, Osman Özdoğan
Tüm Özellikleri ile Kolon Polipleri: Doğu Akdeniz\u2019de Üçüncü Basamak Merkez Deneyimi
Istanbul Medical Journal, vol. 22, no. , pp. –
Mustafa Zanyar Akkuzu, Orhan Sezgin, Enver Üçbilek, Serkan Yaraş, Osman Özdoğan, Fehmi Ateş, Ferzan ...
Significant decrease in liver stiffness detected by two dimensional shear-wave elastography after treatment with direct-acting antiviral agents in patients with chronic Hepatitis C
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 31, no. 2, pp. 142–147
Serkan Yaraş, Orhan Sezgin, Engin Altıntaş, Osman Özdoğan, Enver Üçbilek
Turkish Gastroenterology Association, Pancreas Study Group, Chronic Pancreatitis Committee Consensus Report
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 31, no. Supp1, pp. 1–41
Müjde Soytürk, Dilek Oğuz, Göksel Bengi, İsmail Hakkı Kalkan, Mehmet Yalnız, Mustafa Tahtacı, Kadir ...
Foreign Bodies on the Path of Nutrition: Retrospective Evaluation of Our Clinical Experience
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI, vol. 58, no. 1, pp. 15–20
Mustafa Zanyar Akkuzu, Orhan Sezgin, Serkan Yaraş, Osman Özdoğan, Enver Üçbilek, Fehmi Ateş, Engin A...
The Long-term (10.6 years) Outcome of Hepatitis C patients with Sustained Virologic Response Following Treatment with Pegylated Interferon
VIRAL HEPATIT DERGISI-VIRAL HEPATITIS JOURNAL, vol. 26, no. 1, pp. 22–27
Osman Özdoğan, Serkan Yaraş
The Long-term (10.6 years) Outcome of Hepatitis C patients with Sustained Virologic Response Following Treatment with Pegylated Interferon Ribavirin
Viral Hepatitis Journal, vol. 26, no. 1, pp. 22–27
Osman Özdoğan, Serkan Yaraş
The side effects of direct acting antivirals in hepatitis c patientsare associated with oatp 334 T [G variant
, vol. 14, no. S1, pp. 1–470
Ferzan Aydın, Zuhal Altıntaş, Engin Altıntaş, Hatice Rızaoğlu Balcı, Mustafa Zanyar Akkuzu, Serkan Y...
Our Autoimmune Hepatitis Patients: Single Center Experience
ISTANBUL MEDICAL JOURNAL, vol. 21, no. 2, pp. 132–139
Osman Özdoğan, Serkan Yaraş
Mersin'de Yabani Mantar Zehirlenmeleri: Retrospektif bir Epidemiyolojik Çalışma ve Karaciğer Toksisitesinin İncelenmesi - Wild Mushroom Poisoning in Mersin: A Retrospective Epidemiological Study and Investigation of liver Toxicity
Van Health Sciences Journal-Van Sağlık Bilimleri Dergisi, vol. 13, no. 3, pp. 10–14
Mustafa Zanyar Akkuzu, Orhan Sezgin, Osman Özdoğan, Serkan Yaraş, Seyran Bozkurt Babuş, Enver Üçbile...
EUS accuracy against MRCP for detection of pancreaticobiliary lesions
Eastern Journal of Medicine, vol. 25, no. 4, pp. 535–539
Mustafa Zanyar Akkuzu, Engin Altıntaş, Serkan Yaraş, Osman Özdoğan, Enver Üçbilek, Fehmi Ateş, Ferza...
Gaitada Gizli Kan Pozitifliği Nedeniyle Kolonoskopi Yapılanlarda Kolorektal Malignite Sıklığı
Mustafa Kemal Üniversitesi Tıp Dergisi, vol. 11, no. 41, pp. 109–112
Mustafa Zanyar Akkuzu, Orhan Sezgin, Enver Üçbilek, Osman Özdoğan, Ferzan Aydın, Hatice Rızaoğlu Bal...
The impact of direct-acting antiviral treatment on lipid metabolism and insulin resistance in chronic hepatitis C patients: temporary? permanent?
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 31, no. 5, pp. 384–392
Osman Özdoğan, Engin Altıntaş, Serkan Yaraş, Fehmi Ateş, Enver Üçbilek, Orhan Sezgin
Real-life results of treatment with ombitasvir, paritaprevir, dasabuvir, and ritonavir combination in patients with chronic renal failure infected with HCV in Turkey
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 30, no. 4, pp. 331–335
Serkan Yaraş, Enver Üçbilek, Osman Özdoğan, Fehmi Ateş, Engin Altıntaş, Orhan Sezgin
Evaluation of hypertriglyceridemia-induced acute pancreatitis: A single tertiary care unit experience from Turkey
TURKISH JOURNAL OF GASTROENTEROLOGY, vol. 30, no. 3, pp. 271–277
Orhan Sezgin, Osman Özdoğan, Serkan Yaraş, Enver Üçbilek, Engin Altıntaş
Helicobacter pylori rate and histopathological evaluation in HBeAg-negative chronic hepatitis B virus infection
Archives of Medical Science - Civilization Diseases, vol. 4, no. 1, pp. 97–103
Osman Özdoğan, Serkan Yaraş
Patients Lost after Anti-HCV-Positive Finding in a Tertiary Care University Hospital: Increased Awareness and Action is Necessary to Eradicate HCV
MEDICAL BULLETIN OF SISLI ETFAL HOSPITAL, vol. 53, no. 4, pp. 366–370
Mustafa Zanyar Akkuzu, Orhan Sezgin, Serkan Yaraş, Osman Özdoğan, İbrahim Yılmaz, Enver Üçbilek, Feh...
Direct-acting antiviral drugs used in the treatment of HCVincrease cholesterol levels
, vol. 13, no. S1, pp. 1–266
Osman Özdoğan, Serkan Yaraş, Enver Üçbilek, Fehmi Ateş, Orhan Sezgin, Engin Altıntaş
Retrospective Evaluation of Corrosive Substance Ingestion: Single Center Experience
ISTANBUL MEDICAL JOURNAL, vol. 20, no. 5, pp. 472–476
Mustafa Zanyar Akkuzu, Orhan Sezgin, Osman Özdoğan, Serkan Yaraş, Enver Üçbilek, Fehmi Ateş, Engin A...
Mo1404 - Does Sustained Viral Response Achieved with Direct Acting Antiviral Drugs Correlate with the Liver Shear Wave Elastography Changes and Liver Fibrosis in Chronic HCV Patients?
, vol. 154, no. 6, pp. S–1196
Serkan Yaraş, Orhan Sezgin, Enver Üçbilek, Osman Özdoğan, Fehmi Ateş, Engin Altıntaş
Investigation of the relationship between gene polymorphismsof TNF a (-1031) and chronic hepatitis C infection
Hepatology International, vol. 12, no. S2, pp. 181–661
Serkan Yaraş, Fatma Özlem Kandemir, Fehmi Ateş, Engin Altıntaş, Enver Üçbilek, Zuhal Altıntaş, Nurca...
Distribution of hepatitis C virus genotypes among intravenous drug users in the Cukurova region of Turkey
TURKISH JOURNAL OF MEDICAL SCIENCES, vol. 46, no. 1, pp. 66–71
Enver Üçbilek, Bahri Abaylı, Mahmut Bakır Koyuncu, Mahmut Bakır Koyuncu, Dürdane Mıdıklı, Durdane Mı...
First Week HCV RNA Level Under the Pegylated Interferon and Ribavirin Treatment Predicts Sustained Virological Response
American Journal of Therapeutics, vol. 23, no. 6, pp. e1612–e1618
Mehmet Bayram, Ali Rıza Köksal, Hüseyin Alkım, Salih Boğa, Meltem Ergün, Osman Özdoğan, Engin Altink...
Plasma N terminal Pro brain Natriuretic Peptide Levels Identifying Non dipping Pattern in Patients with Hypertension
Experimental Clinical Cardiology, vol. , no. , pp. –
Hamdi Puşuroğlu, Mehmet Ertürk, Özgür Akgül, Surgit Om, Orhan Çelik, Ayhan Demir, Ismail Bolat, Osma...
How does a biopsy of endoscopically normal terminal ileum contribute to the diagnosis Which patients should undergo biopsy
Libyan Journal of Medicine, vol. 9, no. 1, pp. 23441–8
Ali Rıza Köksal, Salih Boğa, Hüseyin Alkım, Meltem Ergün, Mehmet Bayram, Damlanur Sakız, Osman Özdoğ...
Carotid Intima Media Thickness and Parameters Related to Blood Flow in Obese Patients
Turkiye Klinikleri Journal of Medical Sciences, vol. 33, no. 4, pp. 917–922
Esma Altunoğlu, Feray Akbaş, Füsun Erdenen, Cüneyt Müderrisoğlu, Ender Ülgen, Mustafa Boz, Yüksel Ba...
Signet Cell Carcinoma of Colon in a Nineteen-Year-Old Patient: A Case Report
Case Reports in Oncological Medicine, vol. 2013, no. , pp. 1–4
Özgül Pamukçu, Fatih Selçukbiricik, Ahmet Bilici, Damla Sakız, Osman Özdoğan, Fatih Borlu
Ultrasonographic diagnosis of median arcuate ligament syndrome:a report of two cases
Medical Ultrasonography, vol. 2012, no. 14-2, pp. 154–157
Alper Özel, Güzide Toksoy, Osman Özdoğan, Abdullah Mahmutoğlu, Zeki Karpat
Infliximab- and azathioprine-related severe neutropenia and thrombocytopenia in a case with Crohn’s disease
The Turkish Journal of Gastroenterology, vol. 22, no. 5, pp. 537–539
Ali Rıza Köksal, Canan Alkım, Engin Altınkaya, Mehmet Sait Buğdacı, Osman Özdoğan, Salih Boğa, Hüsey...
False positivity corrected by SPECT-CT in Gastrointestinal Bleeding Scintigraphy
Molecular Oncologic Imaging, vol. 5, no. 2, pp. 43–44
Osman Özdoğan, Adil Gümüş, Zehra Pınar Koç, Pınar Pelin Özcan
Bilateral Huge Incidentalomas of Isolated Adrenal Metastases From Unknown Primary Melanoma Revealed by 18F-FDG PET/CT
Clinical Nuclear Medicine, vol. 42, no. 1, pp. e51–e53
Osman Özdoğan, Pınar Pelin Özcan, Zehra Pınar Koç, Mehmet Yaldız
Colon Polyps with All Features: Third Step Center Experience in the Eastern Mediterranean
ISTANBUL MEDICAL JOURNAL, vol. 22, no. 2, pp. 100–104
Mustafa Zanyar Akkuzu, Serkan Yaraş, Orhan Sezgin, Enver Üçbilek, Engin Altıntaş, Osman Özdoğan, Feh...
Efficacy and Safety of Percutaneous Encoscopic Gastrostomy in Elderly Patients Aged Over 65: A Tertiary Center Long-term Results
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI, vol. 59, no. 2, pp. 128–132
Mustafa Zanyar Akkuzu, Orhan Sezgin, Enver Üçbilek, Ferzan Aydın, Fehmi Ateş, Hatice Rızaoğlu Balcı,...
Demir Eksikliği Anemisi Nedeniyle Endoskopi ve Kolonoskopi Yapılan Hastalarda Malignite Sıklığının Değerlendirilmesi
Mustafa Kemal Üniversitesi Tıp Dergisi, vol. 12, no. 42, pp. 29–33
Engin Altıntaş, Orhan Sezgin, Mustafa Zanyar Akkuzu, Serkan Yaraş, Osman Özdoğan, Hatice Rızaoğlu Ba...
Gastric Polyps: 3rd Stage Gastroenterology Center Results in the Eastern Mediterranean
Kocaeli Medical Journal, vol. 10, no. 60, pp. 72–77
Mustafa Zanyar Akkuzu, Orhan Sezgin, Enver Üçbilek, Osman Özdoğan, Ferzan Aydın, Serkan Yaraş, Hatic...
Gastrointestinal Stent Uygulamaları: Tek merkez deneyimi
Mustafa Kemal Üniversitesi Tıp Dergisi, vol. 12, no. 42, pp. 5–9
Engin Altıntaş, Mustafa Zanyar Akkuzu, Orhan Sezgin, Fehmi Ateş, Serkan Yaraş, Osman Özdoğan, Enver ...
İmatinib ilişkili akut pankreatit: Nadir görülen bir olgu
Mersin Üniversitesi Sağlık Bilimleri Dergisi, vol. 13, no. 1, pp. 155–157
Mehmet Emin Bozdoğan, Fehmi Ateş, Mustafa Zanyar Akkuzu, Serkan Yaraş, Orhan Sezgin, İbrahim Yılmaz,...
How does scavenger receptor B1 polymorphism (rs4238001) affect the progression of Hepatitis C patients with persistent viral responses?
Annals of Medical Research, vol. 27, no. 5, pp. 1298–1305
Osman Özdoğan, Zuhal Altıntaş
Mersin’xxde Yabani Mantar Zehirlenmeleri: Retrospektif birEpidemiyolojik Çalışma ve Karaciğer Toksisitesinin İncelenmesi
van sağlık bilimler dergisi, vol. 13, no. 3, pp. 10–5
Mustafa Zanyar Akkuzu, Orhan Sezgin, Osman Özdoğan, Serkan Yaraş, Seyran Bozkurt Babuş, Enver Üçbile...
Karaciğer sirozunda portal veni tamamen tıkamış yaygın trombüs
Mersin Üniversitesi Sağlık Bilimleri Dergisi, vol. 12, no. 3, pp. 553–556
Şaheste Şen, Serkan Yaraş, Mustafa Zanyar Akkuzu, Orhan Sezgin, İbrahim Yılmaz, Osman Özdoğan, Enver...
Splenektomi yapılmış hastalarda splenomegalinin nedeni Gaucher hastalığı olabilir mi? 271 splenektomili hastanın incelenmesi
Akademik Gastroenteroloji Dergisi, vol. 18, no. 3, pp. 109–111
Mustafa Zanyar Akkuzu, Orhan Sezgin, Serkan Yaraş, Osman Özdoğan, Enver Üçbilek, Fehmi Ateş, Engin A...
A Misleading Parameter in the Diagnosis of Chronic Hepatitis B: Persistently Normal Transaminases
VIRAL HEPATIT DERGISI-VIRAL HEPATITIS JOURNAL, vol. 24, no. 3, pp. 79–84
Osman Özdoğan, Serkan Yaraş, Ali Rıza Köksal, Engin Altınkaya, Mehmet Bayram, Müveddet Banu Yılmaz Ö...
Is there a correlation between plasma levels of asymmetric dimethylarginine (ADMA) levels and atherosclerosis in type 2 diabetes patients in Turkey?
SiSli Etfal Hastanesi Tip Bulteni / The Medical Bulletin of Sisli Hospital, vol. 2017, no. 51-1, pp. 63–70
Osman Özdoğan, Bülent Çekiç
Zor taşlarda zor bir metod: Mekanik litotripsi, Şişli Etfal Hastanesi deneyimi
Endoskopi, vol. 23, no. 1, pp. 14–17
Meltem Ergün, Ali Rıza Köksal, Osman Özdoğan, Salih Boğa, Mehmet Bayram, Canan Alkım, Hüseyin Alkım
Relationship of blood lipid levels with Hba1c and obesity in patients with type 2 diabetes mellitus
SiSli Etfal Hastanesi Tip Bulteni / The Medical Bulletin of Sisli Hospital, vol. 49, no. 4, pp. 248–254
Ebru Özdoğan, Osman Özdoğan, Esma Güldal Altunoğlu, Ali Rıza Köksal
Nazobiliyer drenaj halen etkin ve güvenilir bir yöntemdir: Şişli Etfal Hastanesi deneyimi
Endoskopi, vol. 22, no. 1, pp. 8–10
Meltem Ergün, Ali Rıza Köksal, Salih Boğa, Mehmet Bayram, Engin Altınkaya, Osman Özdoğan, Hüseyin Al...
Kaposi sarkomunun gastrointestinal tutulumu: Olgu sunumuThe gastrointestinal involvement of Kaposi’xxs sarcoma
Akademik Gastroenteroloji Dergisi, vol. 11, no. 2, pp. 74–77
Salih Boğa, Ali Rıza Köksal, Engin Altınkaya, Osman Özdoğan, Damlanur Sakız, Hüseyin Alkım, Meltem E...
Nöropati ile baflvuran Fasciola hepatica olgusuA case of Fasciola hepatica presenting with neuropathy
Akademik Gastroenteroloji Dergisi, vol. 11, no. 2, pp. 84–86
Salih Boğa, Ali Rıza Köksal, Engin Altınkaya, Osman Özdoğan, Meltem Ergün, Canan Alkım
Evulation of The Effect of Hba1c Value and Duration of Diabetes Mellitus on Ocular Hemodynamics by Color Doppler Ultrasonography
Istanbul Medical Journal, vol. 12, no. 4, pp. 171–174
Bülent Çekiç, Işılay Işık, Osman Özdoğan, Güvenç Güvenen, Hanife Özdemir