Areas of Expertise
- Obesity
- Type 1 and Type 2 diabetes
- Insulin pump therapy
- Thyroid disorders
- thyroid biopsy
- Hypertension
- hyperlipidaemia
- Osteoporosis
- Adrenal gland disorders
- Female and male reproductive health
Education and Training
2006–2012: Gazi University, Faculty of Medicine
2012–2017: Uludağ University, Faculty of Medicine, Department of Internal Medicine, Residency Training
2017–2021: Marmara University, Faculty of Medicine, Division of Endocrinology and Metabolism, Subspecialty Training
Experience
Apr 2017 – Dec 2017: Internal Medicine Specialist, Bursa İznik State Hospital
Jun 2021 – Jan 2025: Endocrinology and Metabolism Specialist, Sinop Atatürk State Hospital
Apr 2024: EYES Research Observership Programme, Department of Internal Medicine, University Hospital Munich, Germany
Language
English
Courses and Certificates
2017: “From A to Z in Diabetes Clinical Research” Training, Diabetes Clinic, Ankara
2018: Applied Basic Thyroid Ultrasonography Course, Antalya
2018: Advanced Thyroid and Neck Ultrasonography Course, Ankara
Professional Memberships
European Society of Endocrinology
Turkish Society of Endocrinology and Metabolism
Society of Clinical Endocrinology and Diabetes
Awards
Elbasan O, Üstay Ö. Effect of Cross-Sex Hormone Therapy on Hematological Parameters in Transmen: A 1-Year Follow-Up Study. Endocrinology Research and Practice, 2023; 27(4): 221–226.
Third Prize, 7th Endocrinology Research and Practice Awarded Article Competition
International Publications
Elbasan O, Gögas Yavuz D. (2023). Comparison of staging and recurrence predictors in patients with differentiated thyroid cancer between the 7th and 8th editions of the American Joint Committee on Cancer staging systems. Minerva Endocrinology, 48(3): 261–273.
Elbasan O, Bayram F, Dinçer Yazan C, Apaydın T, Dashdamirova S, Polat H, Arslan E, Yılmaz İ, Karimi N, Ertürk ŞB, Yılmaz SS, Çelik ÖF, Ata P, Haklar G, Gözü H. (2023). Angiotensin-Converting Enzyme (ACE) level, but not ACE gene polymorphism, is associated with prognosis of COVID-19 infection: Implications for diabetes and hypertension. PLOS ONE, 18(7): 1–19.
Elbasan O, Ilgın C, Gögas Yavuz D. (2023). Does total tumour diameter, multifocality, number of tumour foci, or laterality predict lymph node metastasis or recurrence in differentiated thyroid cancer? Endokrynologia Polska, 74(2): 153–167.
Erel P, Elbasan O, Yorguner N, İmre E, Üstay Ö. (2023). Hyperandrogenism-related metabolic changes in drug-naïve transmen compared to cisgender women: a case-controlled study. Endokrynologia Polska, 74(4): 398–403.
Tufan A, Engin E, Elbasan O, Şentürk DN, Can B, Ilgın C, Can B. (2022). Evaluation of sarcopenia in patients with hyperthyroidism. Progress in Nutrition, 24(4): 1–6.
Türkal R, Turan CA, Elbasan O, Aytan S, Çakmak B, Gözaydinoğlu B, Takır DC, Ünlü O, Bahramzada G, Tekin AF, Çevlik T, Büyükbayrak EE, Şirikçi Ö, Gözü H, Haklar G. (2022). Accurate interpretation of thyroid dysfunction during pregnancy: should we continue to use published guidelines instead of population-based gestation-specific reference intervals for TSH? BMC Pregnancy and Childbirth, 22(271): 1–14.
Üstay Ö, Apaydın T, Elbasan O, Polat H, Günhan G, Dinçer C, Şeker L, Arslan AE, Yabacı A, Güney Aİ, Gögas Yavuz D. (2022). When do we need to suspect maturity onset diabetes of the young in patients with type 2 diabetes mellitus? Archives of Endocrinology and Metabolism, 66(1): 32–39.
Apaydın T, Şahin B, Dashdamirova S, Dinçer YC, Elbasan O, Ilgın C, Bilgin H, Cam HK, Bahramzada G, Küçük A, Haklar G, Ilıksu G. (2022). The association of free testosterone levels with coronavirus disease 2019. Andrology, 10(6): 1038–1046.
Günhan HG, Elbasan O, İmre E, Gögas Yavuz D. (2022). Lipodystrophy frequency according to insulin treatment regimen in type 2 diabetic patients: does insulin injection frequency matter in the analog insulin era? Acta Endocrinologica (Bucharest), 18(2): 202–208.
Apaydın T, Polat H, Dinçer YC, Ilgın C, Elbasan O, Dashdamirova S, Bayram F, Tükenmez Tigen E, Ünlü O, Tekin AF, Arslan E, Yılmaz İ, Haklar G, Ata P, Gözü H. (2022). Effects of vitamin D receptor gene polymorphisms on the prognosis of COVID-19. Clinical Endocrinology, 96(6): 819–830.
Elbasan O, Gögas Yavuz D. (2021). Effects of concomitant obesity and diabetes on the aggressiveness and outcomes of differentiated thyroid cancer patients. Archives of Endocrinology and Metabolism, 65(4): 455–461.
Dinçer YC, Ilgın C, Elbasan O, Apaydın T, Dashdamirova S, Yiğit T, Sili U, Karahasan Yağcı A, Sırıkçı Ö, Haklar G, Gözü H. (2021). The association of thyroid hormone changes with inflammatory status and prognosis in COVID-19. International Journal of Endocrinology, 2021(2395212): 1–11.
Elbasan O, Şişman P, Peynirci H, Yabacı A, Ersoy C. (2021). The influence of gender and age on laparoscopic sleeve gastrectomy short-term outcomes in type 2 diabetic obese patients. Turkish Journal of Internal Medicine, 3(4): 164–171.
Apaydın T, Elbasan O, Gögas Yavuz D. (2020). Preoperative plasmapheresis experience in Graves’ disease patients with anti-thyroid drug-induced hepatotoxicity. Transfusion and Apheresis Science, 59(5): 1–5.
Elbasan O, Şişman P, Peynirci H, Yabacı A, Ersoy C. (2020). Comparison between sleeve gastrectomy and exenatide on type 2 diabetic patients. Bariatric Surgical Practice and Patient Care, 15(4): 199–204.
Elbasan O, Gögas Yavuz D. (2020). Refractory hypothyroidism to levothyroxine treatment: five cases of pseudomalabsorption. Acta Endocrinologica (Bucharest), 16(3): 339–345.
Elbasan O, Şişman P, Peynirci H, Yabancı A, Dirican M, Öz Gül O, Cander S, Ersoy C. (2019). Short-term effect of laparoscopic sleeve gastrectomy on clinical, renal parameters, and urinary NGAL levels in diabetic and non-diabetic obesity. Acta Endocrinologica (Bucharest), 15(3): 349–354.
Üstay Ö, Elbasan O, Erel P, Bulut NS, Yorguner N. (2024). Endocrine-disrupting effects of bisphenol-A, thiamethoxam, and fipronil in hormone-naïve transmen compared to cis-women. Hormones (Athens), 23(3): 375–383.
National Publications
Elbasan O, Üstay Ö. (2023). Effect of Cross-Sex Hormone Therapy on Hematological Parameters in Transmen: A 1-Year Follow-Up Study. Endocrinology Research and Practice, 27(4): 221–226. DOI: 10.5152/erp.2023.23256
Peynirci H, Elbasan O. (2022). A Rare Case of McCune-Albright Syndrome in Association with Acromegaly: Treatment Options and a Review of the Literature. Bağcılar Medical Bulletin, 7(4): 374–378. DOI: 10.4274/BMB.galenos.2022.2022-09-071
Arslan AE, Üstay Ö, Polat H, Apaydın T, Elbasan O, Yıldırım Ö, Güney Aİ. (2021). Genetic and Clinical Characterization of Patients with Maturity-Onset Diabetes of the Young (MODY): Identification of Novel Variations. Balkan Medical Journal, 38(5): 272–277. DOI: 10.5152/balkanmedj.2021.20155
Günhan HG, Uygur MM, İmre E, Elbasan O, Gögas Yavuz D. (2020). Serum 25(OH) Vitamin D Levels in Severely Obese Patients Evaluated Before Bariatric Surgery. Turkish Journal of Endocrinology and Metabolism, 24(2): 115–121. DOI: 10.25179/tjem.2019-71778
Şişman P, Öz Gül Ö, Cander S, Şahin AB, Demirtaş C, Muti A, Elbasan O, Saraydaroğlu Ö, Ertürk E. (2018). Sensitivity of localization studies performed by various radiologists in the evaluation of parathyroid lesions. The European Research Journal, 4(2): 112–117. DOI: 10.18621/eurj.308830
Elbasan O, Şişman P, Öz Gül Ö, Cander S, Ersoy C. (2017). An uncommon reason for osteoporosis: Spondyloepiphyseal Dysplasia Congenita. Turkish Journal of Osteoporosis, 23(3): 115–118. DOI: 10.4274/tod.37167
Dalkılıç E, Elbasan O, Muti A, Ermurat S, Coşkun BN, Tufan A, Öksüz MF, Pehlivan Y. (2015). Determination of Rheumatology Awareness Levels Among 4th, 5th, and 6th-Year Students of Uludağ University Faculty of Medicine. Uludağ University Faculty of Medicine Journal, 41(3): 131–134.
International Presentations
Angiotensin-Converting Enzyme (ACE) Level, But Not ACE Gene Polymorphism, Is Associated with Prognosis of COVID-19 Infection: Connection Between Type 2 Diabetes, Hypertension and Renin-Angiotensin-Aldosterone System. Elbasan O, Bayram F, Dinçer Yazan C, Apaydın T, Dashdamirova S, Polat H, Arslan E, Yılmaz İ, Karimi N, Ertürk ŞB, Yılmaz S, Çelik ÖF, Ata P, Haklar G, Ilıksu Gözü H. 25th European Congress of Endocrinology, 2023.
Hyperandrogenism-Related Metabolic Changes in Drug-Naive Transmen Compared to Cisgender Women: A Case-Controlled Study. Erel P, Elbasan O, Yorguner N, İmre E, Üstay Ö. 25th European Congress of Endocrinology, 2023.
The Association of Iodothyronine Deiodinase Gene Polymorphisms and Hashimoto’s Thyroiditis: Does Free T3 Play a Role? Turan CA, Elbasan O, Apaydın T, Gözaydinoğlu B, Ilgın C, Akalan H, Yaşar ŞD, Bircan R, Ilıksu Gözü H. 25th European Congress of Endocrinology, 2023.
Exogenous Testosterone May Have an Effect on Thyroid Volume in Trans-Men. İmre E, Akçay S, Dinçer Yazan C, Elbasan O, Yorguner N, Üstay Ö. 25th European Congress of Endocrinology, 2023.
Assessing the Effect of Thyroid Dysfunction During Pregnancy on Maternal and Neonatal Outcomes Using Guidelines and Population-Based Gestation-Specific Reference Intervals. Elbasan O, Türkal R, Turan CA, Aytan S, Çakmak B, Gözaydinoğlu B, Takır DC, Ünlü O, Bahramzada G, Tekin AF, Çevlik T, Büyükbayrak EE, Şirikçi Ö, Ilıksu Gözü H, Haklar G. 25th European Congress of Endocrinology, 2023.
The Prevalence of TSH Receptor, Cytotoxic T-Lymphocyte Antigen-4, and Interleukin-1 Receptor Antagonist Polymorphisms in Patients with Hashimoto’s Thyroiditis and Their Relationship with Clinical Parameters. Şeker CL, Elbasan O, Ilgın C, Yaşar ŞD, Bircan R, Gözü H. 25th European Congress of Endocrinology, 2023.
Clinical Staging of Well-Differentiated Thyroid Cancer Patients According to American Thyroid Association Risk Calculator Versions 7 and 8. Elbasan O, Dinçer C, İmre E, Gögas Yavuz D. 21st European Congress of Endocrinology, 2019.
High-Dose Levothyroxine Requirement in a Primary Hypothyroid Patient: Pseudomalabsorption. Dinçer YC, Elbasan O, Gögas Yavuz D. EndoBridge 2019: Bridging the World of Endocrinology, 2019.
Extremely High C-Peptide Levels in a Hypoglycemic Nondiabetic Patient: Hirata Disease. Elbasan O, Apaydın T, Gögas Yavuz D. EndoBridge 2019: Bridging the World of Endocrinology, 2019.
Two Cases of Osteopetrosis: Presented With and Without Fracture. Gögas Yavuz D, Elbasan O. World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases, 2019.
Bone Mineral Density and Bone Turnover Markers in Differentiated Thyroid Cancer Patients. Gögas Yavuz D, Dinçer C, Elbasan O, Apaydın T. World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases, 2019.
Metastatic Follicular Thyroid Carcinoma Presented With Hyperthyroidism: Hormone-Active Bone Metastasis. Elbasan O, Üstay Tarçın Ö, Gögas Yavuz D. EndoBridge 2018: Bridging the World of Endocrinology, 2018.
Plasmapheresis Treatment in a Patient with Acute Pancreatitis Due to Hypertriglyceridemia. İmre E, Elbasan O, Gögas Yavuz D. EndoBridge 2018: Bridging the World of Endocrinology, 2018.
The Effects of Bariatric Surgery on Clinical, Renal Parameters, and Urine NGAL Levels in Diabetic and Non-Diabetic Obese Patients. Elbasan O, Peynirci H, Cander S, Öz Gül Ö, Dirican M, Ersoy C. 20th European Congress of Endocrinology, 2018.
Comparative Evaluation of the Effects of Bariatric Surgery and Exenatide Treatment on Clinical and Laboratory Parameters in Obese Type 2 Diabetic Patients. Elbasan O, Şişman P, Peynirci H, Öz Gül Ö, Cander S, Ertürk E, Ersoy C. 19th European Congress of Endocrinology, 2017.
An Uncommon Reason for Osteoporosis: Spondyloepiphyseal Dysplasia Congenita. Elbasan O, Şişman P, Muti A, Öz Gül Ö, Cander S, Ertürk E, Ersoy C. 18th European Congress of Endocrinology, 2016.
Sensitivity of Localization Studies Performed by Various Radiologists Who Are Not Precisely Experienced in Evaluating Parathyroid Lesions. Şişman P, Öz Gül Ö, Demirtaş C, Muti A, Elbasan O, Saraydaroğlu Ö, Cander S, Ersoy C, Ertürk E. 18th European Congress of Endocrinology, 2016.
National Presentations
Exocrine Pancreatic Insufficiency in a Diabetic Patient, Onur Elbasan (2023). 3rd Gastro-Endocrine Summit
Case: Pioglitazone in Type 2 Diabetes and NAFLD, Onur Elbasan (2022). 2nd Gastro-Endocrine Summit
Investigation of Endocrine Disrupting Effects in Hormone-Naive Transmen with Thiamethoxam, Fipronil, and Bisphenol-A Levels: A Single-Center Case-Control Study, Özlem Üstay, Onur Elbasan, Pınar Erel, Neşe Yorguner, Serkut Bulut (2022). 43rd Turkish Congress of Endocrinology and Metabolic Diseases
Treatment of Diabetic NAFLD, Onur Elbasan (2022). 1st Gastro-Endocrine Summit
A New Entity in the Follow-Up of Differentiated Thyroid Cancer: Fluctuating Thyroglobulin, Onur Elbasan, Can Ilgın, Dilek Yavuz (2021). 9th Turkish Thyroid Diseases E-Congress
Effect of Thyroid Function Disorders Observed in Pregnant Women on Fetal Thyroid Gland, Cem Armağan Turan, Onur Elbasan, Ozan Ünlü, Ahmet Faruk Tekin, Rana Türkal, Hülya Bilgen, Hülya Gözü, Goncagül Haklar (2021). 9th Turkish Thyroid Diseases E-Congress
Relationship Between Changes in Thyroid Hormone Levels and Prognosis in COVID-19 Infection, Ceyda Dinçer Yazan, Can Ilgın, Onur Elbasan, Tuğçe Apaydın, Saida Dashdamirova, Tayfun Yiğit, Uluhan Sili, Ayşegül Karahasan Yağcı, Önder Şirikçi, Goncagül Haklar, Hülya Gözü (2021). 9th Turkish Thyroid Diseases E-Congress
Prevalence and Clinical Relationship of TSH Receptor, Cytotoxic T-Lymphocyte Antigen-4, and Interleukin-1 Receptor Antagonist Polymorphisms in Hashimoto’s Thyroiditis in the Turkish Population, Can Lamia Şeker, Onur Elbasan, Can Ilgın, Şirin Duygu Yaşar, Rıfat Bircan, Hülya Ilıksu Gözü (2021). 9th Turkish Thyroid Diseases E-Congress
Gender Identity Disorder in a Case of Testicular Feminization, Onur Elbasan, Özlem Üstay (2019). 9th Adrenal Gonadal and Neuroendocrine Tumors Symposium
Right Atrial and Ventricular Functions in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Yusuf Emre Gürel, Ahmet Anıl Şahin, Nurten Sayar, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Onur Elbasan, Gizem Günhan, Özlem Tarçın (2019). 35th Turkish Cardiology Congress with International Participation
Left and Right Ventricular Functions in Transgender Females Before Hormone Replacement Therapy Assessed by 2D Speckle-Tracking Echocardiography, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Onur Elbasan, Özlem Tarçın, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Right and Left Ventricle Mechanical Dispersion in Transgender Females Before Hormone Replacement Therapy Assessed by 2D Speckle Tracking Echocardiography, Nurten Sayar, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan (2019). 35th Turkish Cardiology Congress with International Participation
Phasic Left and Right Atrial Functions in Transgender Females Before Hormone Replacement Therapy Assessed by 2D Speckle-Tracking Echocardiography, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Beste Özben Sadıç, Onur Elbasan, Özlem Tarçın, Kürşat Tigen, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Right Ventricle Mechanical Dispersion in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Nurten Sayar, Beste Özben Sadıç, Gizem Günhan, Özlem Tarçın, Onur Elbasan, Altuğ Çinçin, Yusuf Emre Gürel, Murat Sünbül, Ahmet Anıl Şahin, Kürşat Tigen (2019). 35th Turkish Cardiology Congress with International Participation
Left Atrial and Left Ventricular Functions in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan, Gizem Günhan, Kürşat Tigen, Beste Özben Sadıç, Altuğ Çinçin, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Left Ventricle Mechanical Dispersion in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Beste Özben Sadıç, Nurten Sayar, Özlem Tarçın, Gizem Günhan, Onur Elbasan, Kürşat Tigen, Murat Sünbül, Yusuf Emre Gürel, Altuğ Çinçin, Ahmet Anıl Şahin (2019). 35th Turkish Cardiology Congress with International Participation
Phasic Right and Left Atrial Functions in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan, Gizem Günhan, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Left and Right Atrial Functions in Transgender Females Before Hormone Replacement Therapy Assessed by 2D-Speckle-Tracking Echocardiography, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan, Beste Özben Sadıç, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Endothelial Function and Carotid Artery Intima-Media Thickness in Transgender Females Before Hormone Replacement Therapy, Özlem Tarçın, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Onur Elbasan, Beste Özben Sadıç, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Bone Mineral Density and Bone Turnover Markers in Patients with Differentiated Thyroid Carcinoma, Dilek Gögas Yavuz, Ceyda Dinçer, Onur Elbasan, Tuğçe Apaydın (2019). 41st Turkish Congress of Endocrinology and Metabolic Diseases
Clinical Staging of Well-Differentiated Thyroid Cancer Patients According to American Thyroid Association Risk Calculator Versions 7 and 8, Onur Elbasan, Dilek Gögas Yavuz (2019). 41st Turkish Congress of Endocrinology and Metabolic Diseases
Effects of Testosterone Therapy on Bone Parameters in Trans-Men, Özlem Tarçın, Onur Elbasan (2019). 41st Turkish Congress of Endocrinology and Metabolic Diseases
- A Case of Multicentric Micropapillary Thyroid Cancer with Distant Metastasis, Onur Elbasan, Ceyda Dinçer, Eren İmre, Dilek Gögas Yavuz (2019). Marmara University 7th Postgraduate Internal Medicine Training Course
Effect of Insulin Degludec/Insulin Aspart Therapy on Hemoglobin A1c, Hande Peynirci, Onur Elbasan (2018). 3rd Zonguldak Endocrine Days – International and National Multidisciplinary Current Approaches Symposium
Clinical and Pathological Features of Well-Differentiated Thyroid Cancer Patients Presenting with Metastasis at Diagnosis, Onur Elbasan, Dilek Gögas Yavuz (2018). 40th Turkish Congress of Endocrinology and Metabolic Diseases
25(OH) Vitamin D and Parathormone Levels in Obese Patients Evaluated for Bariatric Surgery, Gizem Hatice Günhan, Eren İmre, Onur Elbasan, Dilek Gögas Yavuz (2018). 54th National Diabetes Congress
Hypoglycemia Due to Different Etiologies, Onur Elbasan, Öz Gül Özen, Soner Cander, Canan Ersoy (2017). 13th Uludağ Internal Medicine Winter Congress
A Rare Cause of Hypoglycemia: Type B Insulin Resistance Syndrome, Pınar Şişman, Onur Elbasan, Öz Gül Özen, Canan Ersoy, Erdinç Ertürk (2016). 38th Turkish Congress of Endocrinology and Metabolic Diseases
A Rare Cause of Pituitary Mass Differential Diagnosis: Pituitary Tuberculosis, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 38th Turkish Congress of Endocrinology and Metabolic Diseases
Inferior Petrosal Sinus Sampling in the Diagnosis of Cushing’s Disease: Single-Center Results, Pınar Şişman, Onur Elbasan, Öz Gül Özen, Soner Cander, Bahattin Hakyemez, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
Retrospective Evaluation of Our Osteogenesis Imperfecta Cases, Öz Gül Özen, Onur Elbasan, Pınar Şişman, Soner Cander, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
Retroperitoneal Ganglioneuroma with Bilateral Adrenal Adenoma: Case Report, Hande Peynirci, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
A Case of Prolactinoma with Sphenoidal Sinus Herniation, Aybüke Muti, Pınar Şişman, Onur Elbasan, Şirin Zelal Tırnova, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
A Rare Cause of Osteoporosis: Spondyloepiphyseal Dysplasia Congenita, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
A Rare Syndrome: Von Hippel-Lindau: Case Report, Hande Peynirci, Ahmet Bilgehan Şahin, Aybüke Muti, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2015). 37th Turkish Congress of Endocrinology and Metabolic Diseases
Multiple Endocrine Neoplasia Syndromes with Different Clinical Presentations, Hande Peynirci, Aybüke Muti, Onur Elbasan, Ahmet Bilgehan Şahin, Pınar Şişman, Metin Güçlü, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2015). 11th Uludağ Internal Medicine Winter Congress
A Rare Association: Idiopathic Hypoparathyroidism Presenting with Hypoalbuminemia and Intestinal Lymphangiectasia, Onur Elbasan, Hande Peynirci, Aybüke Muti, Ahmet Bilgehan Şahin, Gülten Macit (2015). 11th Uludağ Internal Medicine Winter Congress
Importance of Pamidronate Treatment in Osteogenesis Imperfecta, Onur Elbasan, Hande Peynirci, Aybüke Muti, Pınar Şişman, Canan Ersoy (2015). 11th Uludağ Internal Medicine Winter Congress
Unilateral Adrenal Hyperplasia Presenting with Resistant Hypertension: Case Report, Hande Peynirci, Onur Elbasan, Musa Civak, Pınar Şişman, Elif Güneş, Canan Ersoy (2014). 36th Turkish Congress of Endocrinology and Metabolic Diseases
A Case of Hyperthyroidism Presenting with Tetraparesis, Hande Peynirci, Onur Elbasan, Elif Güneş, Pınar Şişman, Canan Ersoy, Erdinç Ertürk, Ercan Tuncel (2014). 36th Turkish Congress of Endocrinology and Metabolic Diseases
Book Chapter
Özçelik Serhat, Elbasan Onur, Iliksu Gözü Hülya (2022). Inappropriate Thyroid Function Tests. In: Clinical Endocrinology, Editors: Bekir Uçan, Muhammed Kızılgül, Hipokrat Publishing, 1st Edition, pp. 716, ISBN: 978-625-7399-38-8.
Education and Training
2006–2012: Gazi University, Faculty of Medicine
2012–2017: Uludağ University, Faculty of Medicine, Department of Internal Medicine, Residency Training
2017–2021: Marmara University, Faculty of Medicine, Division of Endocrinology and Metabolism, Subspecialty Training
Experience
Apr 2017 – Dec 2017: Internal Medicine Specialist, Bursa İznik State Hospital
Jun 2021 – Jan 2025: Endocrinology and Metabolism Specialist, Sinop Atatürk State Hospital
Apr 2024: EYES Research Observership Programme, Department of Internal Medicine, University Hospital Munich, Germany
Language
English
Courses and Certificates
2017: “From A to Z in Diabetes Clinical Research” Training, Diabetes Clinic, Ankara
2018: Applied Basic Thyroid Ultrasonography Course, Antalya
2018: Advanced Thyroid and Neck Ultrasonography Course, Ankara
Professional Memberships
European Society of Endocrinology
Turkish Society of Endocrinology and Metabolism
Society of Clinical Endocrinology and Diabetes
Awards
Elbasan O, Üstay Ö. Effect of Cross-Sex Hormone Therapy on Hematological Parameters in Transmen: A 1-Year Follow-Up Study. Endocrinology Research and Practice, 2023; 27(4): 221–226.
Third Prize, 7th Endocrinology Research and Practice Awarded Article Competition
International Publications
Elbasan O, Gögas Yavuz D. (2023). Comparison of staging and recurrence predictors in patients with differentiated thyroid cancer between the 7th and 8th editions of the American Joint Committee on Cancer staging systems. Minerva Endocrinology, 48(3): 261–273.
Elbasan O, Bayram F, Dinçer Yazan C, Apaydın T, Dashdamirova S, Polat H, Arslan E, Yılmaz İ, Karimi N, Ertürk ŞB, Yılmaz SS, Çelik ÖF, Ata P, Haklar G, Gözü H. (2023). Angiotensin-Converting Enzyme (ACE) level, but not ACE gene polymorphism, is associated with prognosis of COVID-19 infection: Implications for diabetes and hypertension. PLOS ONE, 18(7): 1–19.
Elbasan O, Ilgın C, Gögas Yavuz D. (2023). Does total tumour diameter, multifocality, number of tumour foci, or laterality predict lymph node metastasis or recurrence in differentiated thyroid cancer? Endokrynologia Polska, 74(2): 153–167.
Erel P, Elbasan O, Yorguner N, İmre E, Üstay Ö. (2023). Hyperandrogenism-related metabolic changes in drug-naïve transmen compared to cisgender women: a case-controlled study. Endokrynologia Polska, 74(4): 398–403.
Tufan A, Engin E, Elbasan O, Şentürk DN, Can B, Ilgın C, Can B. (2022). Evaluation of sarcopenia in patients with hyperthyroidism. Progress in Nutrition, 24(4): 1–6.
Türkal R, Turan CA, Elbasan O, Aytan S, Çakmak B, Gözaydinoğlu B, Takır DC, Ünlü O, Bahramzada G, Tekin AF, Çevlik T, Büyükbayrak EE, Şirikçi Ö, Gözü H, Haklar G. (2022). Accurate interpretation of thyroid dysfunction during pregnancy: should we continue to use published guidelines instead of population-based gestation-specific reference intervals for TSH? BMC Pregnancy and Childbirth, 22(271): 1–14.
Üstay Ö, Apaydın T, Elbasan O, Polat H, Günhan G, Dinçer C, Şeker L, Arslan AE, Yabacı A, Güney Aİ, Gögas Yavuz D. (2022). When do we need to suspect maturity onset diabetes of the young in patients with type 2 diabetes mellitus? Archives of Endocrinology and Metabolism, 66(1): 32–39.
Apaydın T, Şahin B, Dashdamirova S, Dinçer YC, Elbasan O, Ilgın C, Bilgin H, Cam HK, Bahramzada G, Küçük A, Haklar G, Ilıksu G. (2022). The association of free testosterone levels with coronavirus disease 2019. Andrology, 10(6): 1038–1046.
Günhan HG, Elbasan O, İmre E, Gögas Yavuz D. (2022). Lipodystrophy frequency according to insulin treatment regimen in type 2 diabetic patients: does insulin injection frequency matter in the analog insulin era? Acta Endocrinologica (Bucharest), 18(2): 202–208.
Apaydın T, Polat H, Dinçer YC, Ilgın C, Elbasan O, Dashdamirova S, Bayram F, Tükenmez Tigen E, Ünlü O, Tekin AF, Arslan E, Yılmaz İ, Haklar G, Ata P, Gözü H. (2022). Effects of vitamin D receptor gene polymorphisms on the prognosis of COVID-19. Clinical Endocrinology, 96(6): 819–830.
Elbasan O, Gögas Yavuz D. (2021). Effects of concomitant obesity and diabetes on the aggressiveness and outcomes of differentiated thyroid cancer patients. Archives of Endocrinology and Metabolism, 65(4): 455–461.
Dinçer YC, Ilgın C, Elbasan O, Apaydın T, Dashdamirova S, Yiğit T, Sili U, Karahasan Yağcı A, Sırıkçı Ö, Haklar G, Gözü H. (2021). The association of thyroid hormone changes with inflammatory status and prognosis in COVID-19. International Journal of Endocrinology, 2021(2395212): 1–11.
Elbasan O, Şişman P, Peynirci H, Yabacı A, Ersoy C. (2021). The influence of gender and age on laparoscopic sleeve gastrectomy short-term outcomes in type 2 diabetic obese patients. Turkish Journal of Internal Medicine, 3(4): 164–171.
Apaydın T, Elbasan O, Gögas Yavuz D. (2020). Preoperative plasmapheresis experience in Graves’ disease patients with anti-thyroid drug-induced hepatotoxicity. Transfusion and Apheresis Science, 59(5): 1–5.
Elbasan O, Şişman P, Peynirci H, Yabacı A, Ersoy C. (2020). Comparison between sleeve gastrectomy and exenatide on type 2 diabetic patients. Bariatric Surgical Practice and Patient Care, 15(4): 199–204.
Elbasan O, Gögas Yavuz D. (2020). Refractory hypothyroidism to levothyroxine treatment: five cases of pseudomalabsorption. Acta Endocrinologica (Bucharest), 16(3): 339–345.
Elbasan O, Şişman P, Peynirci H, Yabancı A, Dirican M, Öz Gül O, Cander S, Ersoy C. (2019). Short-term effect of laparoscopic sleeve gastrectomy on clinical, renal parameters, and urinary NGAL levels in diabetic and non-diabetic obesity. Acta Endocrinologica (Bucharest), 15(3): 349–354.
Üstay Ö, Elbasan O, Erel P, Bulut NS, Yorguner N. (2024). Endocrine-disrupting effects of bisphenol-A, thiamethoxam, and fipronil in hormone-naïve transmen compared to cis-women. Hormones (Athens), 23(3): 375–383.
National Publications
Elbasan O, Üstay Ö. (2023). Effect of Cross-Sex Hormone Therapy on Hematological Parameters in Transmen: A 1-Year Follow-Up Study. Endocrinology Research and Practice, 27(4): 221–226. DOI: 10.5152/erp.2023.23256
Peynirci H, Elbasan O. (2022). A Rare Case of McCune-Albright Syndrome in Association with Acromegaly: Treatment Options and a Review of the Literature. Bağcılar Medical Bulletin, 7(4): 374–378. DOI: 10.4274/BMB.galenos.2022.2022-09-071
Arslan AE, Üstay Ö, Polat H, Apaydın T, Elbasan O, Yıldırım Ö, Güney Aİ. (2021). Genetic and Clinical Characterization of Patients with Maturity-Onset Diabetes of the Young (MODY): Identification of Novel Variations. Balkan Medical Journal, 38(5): 272–277. DOI: 10.5152/balkanmedj.2021.20155
Günhan HG, Uygur MM, İmre E, Elbasan O, Gögas Yavuz D. (2020). Serum 25(OH) Vitamin D Levels in Severely Obese Patients Evaluated Before Bariatric Surgery. Turkish Journal of Endocrinology and Metabolism, 24(2): 115–121. DOI: 10.25179/tjem.2019-71778
Şişman P, Öz Gül Ö, Cander S, Şahin AB, Demirtaş C, Muti A, Elbasan O, Saraydaroğlu Ö, Ertürk E. (2018). Sensitivity of localization studies performed by various radiologists in the evaluation of parathyroid lesions. The European Research Journal, 4(2): 112–117. DOI: 10.18621/eurj.308830
Elbasan O, Şişman P, Öz Gül Ö, Cander S, Ersoy C. (2017). An uncommon reason for osteoporosis: Spondyloepiphyseal Dysplasia Congenita. Turkish Journal of Osteoporosis, 23(3): 115–118. DOI: 10.4274/tod.37167
Dalkılıç E, Elbasan O, Muti A, Ermurat S, Coşkun BN, Tufan A, Öksüz MF, Pehlivan Y. (2015). Determination of Rheumatology Awareness Levels Among 4th, 5th, and 6th-Year Students of Uludağ University Faculty of Medicine. Uludağ University Faculty of Medicine Journal, 41(3): 131–134.
International Presentations
Angiotensin-Converting Enzyme (ACE) Level, But Not ACE Gene Polymorphism, Is Associated with Prognosis of COVID-19 Infection: Connection Between Type 2 Diabetes, Hypertension and Renin-Angiotensin-Aldosterone System. Elbasan O, Bayram F, Dinçer Yazan C, Apaydın T, Dashdamirova S, Polat H, Arslan E, Yılmaz İ, Karimi N, Ertürk ŞB, Yılmaz S, Çelik ÖF, Ata P, Haklar G, Ilıksu Gözü H. 25th European Congress of Endocrinology, 2023.
Hyperandrogenism-Related Metabolic Changes in Drug-Naive Transmen Compared to Cisgender Women: A Case-Controlled Study. Erel P, Elbasan O, Yorguner N, İmre E, Üstay Ö. 25th European Congress of Endocrinology, 2023.
The Association of Iodothyronine Deiodinase Gene Polymorphisms and Hashimoto’s Thyroiditis: Does Free T3 Play a Role? Turan CA, Elbasan O, Apaydın T, Gözaydinoğlu B, Ilgın C, Akalan H, Yaşar ŞD, Bircan R, Ilıksu Gözü H. 25th European Congress of Endocrinology, 2023.
Exogenous Testosterone May Have an Effect on Thyroid Volume in Trans-Men. İmre E, Akçay S, Dinçer Yazan C, Elbasan O, Yorguner N, Üstay Ö. 25th European Congress of Endocrinology, 2023.
Assessing the Effect of Thyroid Dysfunction During Pregnancy on Maternal and Neonatal Outcomes Using Guidelines and Population-Based Gestation-Specific Reference Intervals. Elbasan O, Türkal R, Turan CA, Aytan S, Çakmak B, Gözaydinoğlu B, Takır DC, Ünlü O, Bahramzada G, Tekin AF, Çevlik T, Büyükbayrak EE, Şirikçi Ö, Ilıksu Gözü H, Haklar G. 25th European Congress of Endocrinology, 2023.
The Prevalence of TSH Receptor, Cytotoxic T-Lymphocyte Antigen-4, and Interleukin-1 Receptor Antagonist Polymorphisms in Patients with Hashimoto’s Thyroiditis and Their Relationship with Clinical Parameters. Şeker CL, Elbasan O, Ilgın C, Yaşar ŞD, Bircan R, Gözü H. 25th European Congress of Endocrinology, 2023.
Clinical Staging of Well-Differentiated Thyroid Cancer Patients According to American Thyroid Association Risk Calculator Versions 7 and 8. Elbasan O, Dinçer C, İmre E, Gögas Yavuz D. 21st European Congress of Endocrinology, 2019.
High-Dose Levothyroxine Requirement in a Primary Hypothyroid Patient: Pseudomalabsorption. Dinçer YC, Elbasan O, Gögas Yavuz D. EndoBridge 2019: Bridging the World of Endocrinology, 2019.
Extremely High C-Peptide Levels in a Hypoglycemic Nondiabetic Patient: Hirata Disease. Elbasan O, Apaydın T, Gögas Yavuz D. EndoBridge 2019: Bridging the World of Endocrinology, 2019.
Two Cases of Osteopetrosis: Presented With and Without Fracture. Gögas Yavuz D, Elbasan O. World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases, 2019.
Bone Mineral Density and Bone Turnover Markers in Differentiated Thyroid Cancer Patients. Gögas Yavuz D, Dinçer C, Elbasan O, Apaydın T. World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases, 2019.
Metastatic Follicular Thyroid Carcinoma Presented With Hyperthyroidism: Hormone-Active Bone Metastasis. Elbasan O, Üstay Tarçın Ö, Gögas Yavuz D. EndoBridge 2018: Bridging the World of Endocrinology, 2018.
Plasmapheresis Treatment in a Patient with Acute Pancreatitis Due to Hypertriglyceridemia. İmre E, Elbasan O, Gögas Yavuz D. EndoBridge 2018: Bridging the World of Endocrinology, 2018.
The Effects of Bariatric Surgery on Clinical, Renal Parameters, and Urine NGAL Levels in Diabetic and Non-Diabetic Obese Patients. Elbasan O, Peynirci H, Cander S, Öz Gül Ö, Dirican M, Ersoy C. 20th European Congress of Endocrinology, 2018.
Comparative Evaluation of the Effects of Bariatric Surgery and Exenatide Treatment on Clinical and Laboratory Parameters in Obese Type 2 Diabetic Patients. Elbasan O, Şişman P, Peynirci H, Öz Gül Ö, Cander S, Ertürk E, Ersoy C. 19th European Congress of Endocrinology, 2017.
An Uncommon Reason for Osteoporosis: Spondyloepiphyseal Dysplasia Congenita. Elbasan O, Şişman P, Muti A, Öz Gül Ö, Cander S, Ertürk E, Ersoy C. 18th European Congress of Endocrinology, 2016.
Sensitivity of Localization Studies Performed by Various Radiologists Who Are Not Precisely Experienced in Evaluating Parathyroid Lesions. Şişman P, Öz Gül Ö, Demirtaş C, Muti A, Elbasan O, Saraydaroğlu Ö, Cander S, Ersoy C, Ertürk E. 18th European Congress of Endocrinology, 2016.
National Presentations
Exocrine Pancreatic Insufficiency in a Diabetic Patient, Onur Elbasan (2023). 3rd Gastro-Endocrine Summit
Case: Pioglitazone in Type 2 Diabetes and NAFLD, Onur Elbasan (2022). 2nd Gastro-Endocrine Summit
Investigation of Endocrine Disrupting Effects in Hormone-Naive Transmen with Thiamethoxam, Fipronil, and Bisphenol-A Levels: A Single-Center Case-Control Study, Özlem Üstay, Onur Elbasan, Pınar Erel, Neşe Yorguner, Serkut Bulut (2022). 43rd Turkish Congress of Endocrinology and Metabolic Diseases
Treatment of Diabetic NAFLD, Onur Elbasan (2022). 1st Gastro-Endocrine Summit
A New Entity in the Follow-Up of Differentiated Thyroid Cancer: Fluctuating Thyroglobulin, Onur Elbasan, Can Ilgın, Dilek Yavuz (2021). 9th Turkish Thyroid Diseases E-Congress
Effect of Thyroid Function Disorders Observed in Pregnant Women on Fetal Thyroid Gland, Cem Armağan Turan, Onur Elbasan, Ozan Ünlü, Ahmet Faruk Tekin, Rana Türkal, Hülya Bilgen, Hülya Gözü, Goncagül Haklar (2021). 9th Turkish Thyroid Diseases E-Congress
Relationship Between Changes in Thyroid Hormone Levels and Prognosis in COVID-19 Infection, Ceyda Dinçer Yazan, Can Ilgın, Onur Elbasan, Tuğçe Apaydın, Saida Dashdamirova, Tayfun Yiğit, Uluhan Sili, Ayşegül Karahasan Yağcı, Önder Şirikçi, Goncagül Haklar, Hülya Gözü (2021). 9th Turkish Thyroid Diseases E-Congress
Prevalence and Clinical Relationship of TSH Receptor, Cytotoxic T-Lymphocyte Antigen-4, and Interleukin-1 Receptor Antagonist Polymorphisms in Hashimoto’s Thyroiditis in the Turkish Population, Can Lamia Şeker, Onur Elbasan, Can Ilgın, Şirin Duygu Yaşar, Rıfat Bircan, Hülya Ilıksu Gözü (2021). 9th Turkish Thyroid Diseases E-Congress
Gender Identity Disorder in a Case of Testicular Feminization, Onur Elbasan, Özlem Üstay (2019). 9th Adrenal Gonadal and Neuroendocrine Tumors Symposium
Right Atrial and Ventricular Functions in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Yusuf Emre Gürel, Ahmet Anıl Şahin, Nurten Sayar, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Onur Elbasan, Gizem Günhan, Özlem Tarçın (2019). 35th Turkish Cardiology Congress with International Participation
Left and Right Ventricular Functions in Transgender Females Before Hormone Replacement Therapy Assessed by 2D Speckle-Tracking Echocardiography, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Onur Elbasan, Özlem Tarçın, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Right and Left Ventricle Mechanical Dispersion in Transgender Females Before Hormone Replacement Therapy Assessed by 2D Speckle Tracking Echocardiography, Nurten Sayar, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan (2019). 35th Turkish Cardiology Congress with International Participation
Phasic Left and Right Atrial Functions in Transgender Females Before Hormone Replacement Therapy Assessed by 2D Speckle-Tracking Echocardiography, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Beste Özben Sadıç, Onur Elbasan, Özlem Tarçın, Kürşat Tigen, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Right Ventricle Mechanical Dispersion in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Nurten Sayar, Beste Özben Sadıç, Gizem Günhan, Özlem Tarçın, Onur Elbasan, Altuğ Çinçin, Yusuf Emre Gürel, Murat Sünbül, Ahmet Anıl Şahin, Kürşat Tigen (2019). 35th Turkish Cardiology Congress with International Participation
Left Atrial and Left Ventricular Functions in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan, Gizem Günhan, Kürşat Tigen, Beste Özben Sadıç, Altuğ Çinçin, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Left Ventricle Mechanical Dispersion in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Beste Özben Sadıç, Nurten Sayar, Özlem Tarçın, Gizem Günhan, Onur Elbasan, Kürşat Tigen, Murat Sünbül, Yusuf Emre Gürel, Altuğ Çinçin, Ahmet Anıl Şahin (2019). 35th Turkish Cardiology Congress with International Participation
Phasic Right and Left Atrial Functions in Diabetic and Non-Diabetic Obese Individuals Assessed by 2D-Speckle Tracking Echocardiography, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan, Gizem Günhan, Beste Özben Sadıç, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Left and Right Atrial Functions in Transgender Females Before Hormone Replacement Therapy Assessed by 2D-Speckle-Tracking Echocardiography, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Özlem Tarçın, Onur Elbasan, Beste Özben Sadıç, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Endothelial Function and Carotid Artery Intima-Media Thickness in Transgender Females Before Hormone Replacement Therapy, Özlem Tarçın, Kürşat Tigen, Altuğ Çinçin, Murat Sünbül, Yusuf Emre Gürel, Ahmet Anıl Şahin, Onur Elbasan, Beste Özben Sadıç, Nurten Sayar (2019). 35th Turkish Cardiology Congress with International Participation
Bone Mineral Density and Bone Turnover Markers in Patients with Differentiated Thyroid Carcinoma, Dilek Gögas Yavuz, Ceyda Dinçer, Onur Elbasan, Tuğçe Apaydın (2019). 41st Turkish Congress of Endocrinology and Metabolic Diseases
Clinical Staging of Well-Differentiated Thyroid Cancer Patients According to American Thyroid Association Risk Calculator Versions 7 and 8, Onur Elbasan, Dilek Gögas Yavuz (2019). 41st Turkish Congress of Endocrinology and Metabolic Diseases
Effects of Testosterone Therapy on Bone Parameters in Trans-Men, Özlem Tarçın, Onur Elbasan (2019). 41st Turkish Congress of Endocrinology and Metabolic Diseases
- A Case of Multicentric Micropapillary Thyroid Cancer with Distant Metastasis, Onur Elbasan, Ceyda Dinçer, Eren İmre, Dilek Gögas Yavuz (2019). Marmara University 7th Postgraduate Internal Medicine Training Course
Effect of Insulin Degludec/Insulin Aspart Therapy on Hemoglobin A1c, Hande Peynirci, Onur Elbasan (2018). 3rd Zonguldak Endocrine Days – International and National Multidisciplinary Current Approaches Symposium
Clinical and Pathological Features of Well-Differentiated Thyroid Cancer Patients Presenting with Metastasis at Diagnosis, Onur Elbasan, Dilek Gögas Yavuz (2018). 40th Turkish Congress of Endocrinology and Metabolic Diseases
25(OH) Vitamin D and Parathormone Levels in Obese Patients Evaluated for Bariatric Surgery, Gizem Hatice Günhan, Eren İmre, Onur Elbasan, Dilek Gögas Yavuz (2018). 54th National Diabetes Congress
Hypoglycemia Due to Different Etiologies, Onur Elbasan, Öz Gül Özen, Soner Cander, Canan Ersoy (2017). 13th Uludağ Internal Medicine Winter Congress
A Rare Cause of Hypoglycemia: Type B Insulin Resistance Syndrome, Pınar Şişman, Onur Elbasan, Öz Gül Özen, Canan Ersoy, Erdinç Ertürk (2016). 38th Turkish Congress of Endocrinology and Metabolic Diseases
A Rare Cause of Pituitary Mass Differential Diagnosis: Pituitary Tuberculosis, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 38th Turkish Congress of Endocrinology and Metabolic Diseases
Inferior Petrosal Sinus Sampling in the Diagnosis of Cushing’s Disease: Single-Center Results, Pınar Şişman, Onur Elbasan, Öz Gül Özen, Soner Cander, Bahattin Hakyemez, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
Retrospective Evaluation of Our Osteogenesis Imperfecta Cases, Öz Gül Özen, Onur Elbasan, Pınar Şişman, Soner Cander, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
Retroperitoneal Ganglioneuroma with Bilateral Adrenal Adenoma: Case Report, Hande Peynirci, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
A Case of Prolactinoma with Sphenoidal Sinus Herniation, Aybüke Muti, Pınar Şişman, Onur Elbasan, Şirin Zelal Tırnova, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
A Rare Cause of Osteoporosis: Spondyloepiphyseal Dysplasia Congenita, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2016). 12th Uludağ Internal Medicine Winter Congress
A Rare Syndrome: Von Hippel-Lindau: Case Report, Hande Peynirci, Ahmet Bilgehan Şahin, Aybüke Muti, Onur Elbasan, Pınar Şişman, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2015). 37th Turkish Congress of Endocrinology and Metabolic Diseases
Multiple Endocrine Neoplasia Syndromes with Different Clinical Presentations, Hande Peynirci, Aybüke Muti, Onur Elbasan, Ahmet Bilgehan Şahin, Pınar Şişman, Metin Güçlü, Öz Gül Özen, Erdinç Ertürk, Canan Ersoy (2015). 11th Uludağ Internal Medicine Winter Congress
A Rare Association: Idiopathic Hypoparathyroidism Presenting with Hypoalbuminemia and Intestinal Lymphangiectasia, Onur Elbasan, Hande Peynirci, Aybüke Muti, Ahmet Bilgehan Şahin, Gülten Macit (2015). 11th Uludağ Internal Medicine Winter Congress
Importance of Pamidronate Treatment in Osteogenesis Imperfecta, Onur Elbasan, Hande Peynirci, Aybüke Muti, Pınar Şişman, Canan Ersoy (2015). 11th Uludağ Internal Medicine Winter Congress
Unilateral Adrenal Hyperplasia Presenting with Resistant Hypertension: Case Report, Hande Peynirci, Onur Elbasan, Musa Civak, Pınar Şişman, Elif Güneş, Canan Ersoy (2014). 36th Turkish Congress of Endocrinology and Metabolic Diseases
A Case of Hyperthyroidism Presenting with Tetraparesis, Hande Peynirci, Onur Elbasan, Elif Güneş, Pınar Şişman, Canan Ersoy, Erdinç Ertürk, Ercan Tuncel (2014). 36th Turkish Congress of Endocrinology and Metabolic Diseases
Book Chapter
Özçelik Serhat, Elbasan Onur, Iliksu Gözü Hülya (2022). Inappropriate Thyroid Function Tests. In: Clinical Endocrinology, Editors: Bekir Uçan, Muhammed Kızılgül, Hipokrat Publishing, 1st Edition, pp. 716, ISBN: 978-625-7399-38-8.
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