Spec. MD. Tevfik Demir

Spec. MD.

Tevfik Demir

Pediatric Health
Single Form Doctors

Areas of Interests

  • General pediatry
  • Pediatric cardiology

Prof. Dr. Tevfik Demir Deliver World-Class Endocrinology Care with Expertise and Innovation

Prof. Dr. Tevfik Demir stands at the forefront of endocrinology and metabolic medicine at Liv Hospital, recognized internationally for his unparalleled expertise in managing even the most challenging hormonal and metabolic disorders. His patient-centric focus and dedication to compassionate, world-class care set him apart. Prof. Dr. Demir specializes in a broad range of conditions, including diabetes, thyroid and parathyroid diseases, adrenal and pituitary dysfunctions, obesity, lipid metabolism disorders, and rare endocrine syndromes. By integrating advanced diagnostic technologies and minimally invasive treatment options, he delivers personalized care plans that maximize both effectiveness and patient comfort, aiming for faster recovery and long-term wellness.

With each patient, Prof. Dr. Demir emphasizes open communication, education, and active participation in the therapeutic journey. His approach is deeply collaborative, ensuring patients fully understand their conditions and the rationale behind every step of their treatment. At Liv Hospital, individuals benefit from his proficiency with the latest medical devices, laboratory techniques, and cutting-edge imaging for timely and accurate diagnoses. This results in optimal clinical outcomes and peace of mind for adults and children facing endocrine health challenges.

What further distinguishes Prof. Dr. Tevfik Demir is his dual commitment to clinical excellence and academic leadership. His medical education began at the prestigious Akdeniz University Faculty of Medicine, followed by an internal medicine residency and endocrinology fellowship at Dokuz Eylül University, a hub for medical innovation in Turkey. As a Professor of Medicine, he has served as Head of the Department of Endocrinology and Metabolism, shaping departmental standards and mentoring the next generation of specialists.

Beyond the clinic, Prof. Dr. Demir’s name is synonymous with scientific authority in endocrinology. He is a prolific researcher whose work appears in leading international and national journals. His investigations spanning diabetes, lipodystrophy, thyroid and parathyroid disorders, and metabolic bone disease have been widely cited, influencing protocols and improving care worldwide. He is frequently sought out for his evidence-based opinion on complex cases and has contributed to international expert panels, clinical guidelines, and advanced medical education programs.

Dr. Demir’s impressive portfolio includes prestigious certifications, leadership roles, and active participation in professional societies. He values continuous learning, remaining at the forefront of evolving treatment modalities that align with international best practices. All his clinical decisions are grounded in the latest scientific evidence, offering patients the security that their health is entrusted to an academic authority as well as a compassionate physician.

Through a relentless commitment to innovation, education, and individualized care, Prof. Dr. Tevfik Demir continues to set new benchmarks for excellence in endocrinology, ensuring patients at Liv Hospital receive the highest standard of diagnosis, treatment, and support from a true leader in his field.

Prof. Dr. Tevfik Demir Deliver World-Class Endocrinology Care with Expertise and Innovation

Prof. Dr. Tevfik Demir stands at the forefront of endocrinology and metabolic medicine at Liv Hospital, recognized internationally for his unparalleled expertise in managing even the most challenging hormonal and metabolic disorders. His patient-centric focus and dedication to compassionate, world-class care set him apart. Prof. Dr. Demir specializes in a broad range of conditions, including diabetes, thyroid and parathyroid diseases, adrenal and pituitary dysfunctions, obesity, lipid metabolism disorders, and rare endocrine syndromes. By integrating advanced diagnostic technologies and minimally invasive treatment options, he delivers personalized care plans that maximize both effectiveness and patient comfort, aiming for faster recovery and long-term wellness.

With each patient, Prof. Dr. Demir emphasizes open communication, education, and active participation in the therapeutic journey. His approach is deeply collaborative, ensuring patients fully understand their conditions and the rationale behind every step of their treatment. At Liv Hospital, individuals benefit from his proficiency with the latest medical devices, laboratory techniques, and cutting-edge imaging for timely and accurate diagnoses. This results in optimal clinical outcomes and peace of mind for adults and children facing endocrine health challenges.

What further distinguishes Prof. Dr. Tevfik Demir is his dual commitment to clinical excellence and academic leadership. His medical education began at the prestigious Akdeniz University Faculty of Medicine, followed by an internal medicine residency and endocrinology fellowship at Dokuz Eylül University, a hub for medical innovation in Turkey. As a Professor of Medicine, he has served as Head of the Department of Endocrinology and Metabolism, shaping departmental standards and mentoring the next generation of specialists.

Beyond the clinic, Prof. Dr. Demir’s name is synonymous with scientific authority in endocrinology. He is a prolific researcher whose work appears in leading international and national journals. His investigations spanning diabetes, lipodystrophy, thyroid and parathyroid disorders, and metabolic bone disease have been widely cited, influencing protocols and improving care worldwide. He is frequently sought out for his evidence-based opinion on complex cases and has contributed to international expert panels, clinical guidelines, and advanced medical education programs.

Dr. Demir’s impressive portfolio includes prestigious certifications, leadership roles, and active participation in professional societies. He values continuous learning, remaining at the forefront of evolving treatment modalities that align with international best practices. All his clinical decisions are grounded in the latest scientific evidence, offering patients the security that their health is entrusted to an academic authority as well as a compassionate physician.

Through a relentless commitment to innovation, education, and individualized care, Prof. Dr. Tevfik Demir continues to set new benchmarks for excellence in endocrinology, ensuring patients at Liv Hospital receive the highest standard of diagnosis, treatment, and support from a true leader in his field.

Articles published in international peer-reviewed journals:
  • Erkan, T., T. Kutlu, F. Cullu, M. Celik, T. Demir, B. Tüysüz and G. Tümay, “[Hennekam syndrome]”, Arch. Pediatr., 5,1344-6 (1998).
  • Vural, M., B. Ilıkkan, P. E, T. Demir and Y. Perk, “A premature newborn with vesiculobullous skin lesions”, Eur. J. Pediatr., 162, 197-9 (2003).
  • Demir, T., T. Celkan, G. Ahunbay, A.K. Babaoglu and R. Besikci, “Venous and intrapericardial thrombosis: secondary to transient protein C deficiency”, Pediatr Cardiol., 27, 497-499 (2006).
  • Babaoglu K, A.G. Eroglu, F. Oztunc, L. Saltık, T. Demir, G. Ahunbay, A. Güzeltaş and G. Çetin, Echocardiographic Follow-Up of Children with Isolated Discrete Subaortic  Stenosis. pediatrician Cardiol., 27, 699-706 (2006).
  • Eroglu, A.G., K. Babaoglu, L. Saltık, F. Oztunc, T. Demir, G. Ahunbay, A. Güzeltaş  and G. Çetin, “Echocardiographic Follow-Up of Congenital Aortic Valvular Stenosis”, Pediatr. Cardiol., 27, 713-719 (2006).
  • Eroglu, A.G., K. Babaoglu, F. Oztunç, L. Saltık, T. Demir, G. Ahunbay, A. Güzeltaş and G. Cetin, “Echocardiographic Follow-Up of Children with Supravalvular Aortic Stenosis”, Pediatr. Cardiol., 27, 707-712 (2006).
  • Ozkara, A., G. Cetin, E. Tireli, A. Akçevin, O. Koner, İ. Soyler, T. Demir and L. Saltık, “Off pump repair of aortic arch anomalies with concomitant intracardiac defects via anterior approach”, J. Card. Surg., 21, 550-2 (2006).
  • Demir, T., F. Oztunç, G. Cetin, L. Saltık, A.G. Eroğlu, K. Babaoğlu and G. Ahunbay, “Patency or recanalization of the arterial duct after surgical double ligation and transfixion”. Cardiol. Young, 17,148-50 (2007).
  • Oztunc, F., T. Demir, L. Saltık and A. Güzeltaş, “Aneurysmal formation in the setting of muscular ventricular septal defects”, Cardiol. Young. 17,319-21 (2007).
  • Dogangün, B., A. Güzeltaş, M. Emül, T. Demir, G. Karacetin, F. Oztunc and L. Kayaalp, “Assessment of P Wave Dispersion in Children Treated with risperidone”, Neurology, psychiatry and Brain Research, 14 , 115-118 (2007).
  • Demir, T., F.Oztunç, A.G.Eroğlu, L.Saltik, G. Ahunbay, S. Kutluğ, A. Güzeltaş and G. Altun, “Outcome for patients with isolated atrial septal defects in the oval fossa diagnosed in infancy”, Cardiol. Young. 8, 1-4 (2008).
  • Guven, B., A.G. Eroglu, K. Babaoglu, T. Demir, A. Güzeltas, F. Oztunc and L. Saltik, “QT Dispersion and Diastolic Functions in Differential Diagnosis of Primary Mitral Valve Prolapse and Rheumatic Mitral Valve Prolapse”, Pediatr. Cardiol., 29, 352-8 (2008).
  • Narcı, A., M. Korkmaz, R. Albayrak, B.H. Guvenç, S. Sözcübir, R. Köken, T. Demir and O. Doğru, “Preoperative Sonography of Nonreducible Inguinal Masses in Girls”, J. Clin. Ultrasound, 36, 409-12 (2008).
  • Hatemi A.C., T. Demir, İ. Adaletli, G. Cetin and F. Oztunc, “Third left pulmonary vein with abnormal return associated with arteriovenous fistula”, J. Card. Surg., 23, 366-8 (2008).
  • Köken, R., T.A. Sen, A. Bukulmez, A. Aycicek, T. Demir, H. Melek, O. Öztekin and M. Emul, “Enlightening the Role of breastfeeding in Hyperactivity and Snoring”, Neurology, psychiatry and Brain Research, 15, 85-88 (2008).
  • Emul, M., A. Asik, T. Sen, C. Gunes and T. Demir, “Hyperglycaemia in an 11-year-old girl after quetiapine treatment”, Prog Neuropsychopharmacol Biol Psychiatry, 13;33, 1568-9 (2009). ).
  • Köken, R., T. Demir, T.A. Sen, A.A. Kundak, O. Oztekin and F. Alpay, “The relationship between P-wave dispersion and diastolic functions in diabetic children”, Cardiol Young, 20, 133-7 (2010).
  • Şen, T.A., A.A. Kundak, Ö. Güraksın, T. Demir, A. Narcı, “Acute Rheumatic Carditis Developing with Schoenlein-Henoch Vasculitis” Anatolian Journal of Cardiology, 10, 465-466 (2010).
  • Kucuker, H., T. Demir, R. Oral, “Pediatric condition falsification (Munchausen syndrome by Proxy) as a continuum of maternal factitious disorder (Munchausen syndrome)”, Pediatr Diabetes, 11, 572-8 (2010).
  • Yıldırım, A., T. Demir, B. Sevin, G. Ozdemir, “Severe tricuspid regurgitation after blunt chest trauma due to chordal rupture: a rare complication”, Anadolu Kardiyol Derg, 13, 712-4 (2013).
  • Demir, T., Y. Ergül, C. Akdeniz, V. Tuzcu, “Electroanatomic mapping-guided radiofrequency ablation of multifocal atrial tachycardia in a child”, Anadolu Kardiyol Derg, 13, 391-3 (2013).
  • Barsan, T., Z. Kılıç, N.Uzuner, A. Yıldırım, B. Uçar, T. Demir, “Cerebral blood flow of children with vasovagal syncope”, Cardiol Young, 2, 1-7 (2014). A24. Koca B, T. Demir, Kasapçopur Ö, “Use of tissue Doppler and its comparison with other pulse Doppler echocardiography in the evaluation of diastolic functions in patients with active juvenile idiopathic arthritis”, Clin Rheumatol, 34, 1391-6 (2015)
  • Toker RT, Yildirim A, T. Demir, Ucar B, Kilic Z, “Circadian blood pressure rhythm in normotensive offspring of hypertensive parents”, Cardiol J, 22,172-8 (2015)
  • Yildirim A, Aydin A, Demir T, Kosger P, Ozdemir G, Ucar B, Kilic Z,  “Acute rheumatic fever: a single center experience with 193 clinical cases” Minerva Pediatr, 68, 134-42 (2016)
  • Yildirim A, Aydin A, Demir T, Aydin F, Ucar B, Kilic Z, “Echocardiographic Follow-Up of Patent Foramen Ovale and the Factors Affecting Spontaneous Closure” Acta Cardiol Sin, 32, 731-737  (2016)
Articles published in national refereed journals:
  • Kasapçopur, Ö., Y. Taşdan, T. Demir, S. Çalışkan, C. Koşan, L. Sever and N. Arısoy, “Juvenile Episodic Arthritis”, Turk Pediatric Archives, 33, 48-51 (1998).
  • Demir, T., “Acute epiglottitis (supraglottitis)”, Journal of Current Medicine, 8, 34-5 (2003).
  • Oztunc F, A.G.Eroglu and T. Demir, “Annular insertion levels of atrioventricular valves along the interventricular septum alone can lead to misdiagnosis of ventricular morphology”, Anadolu Kardiyol. Journal, 5,142-4 (2005).
  • Doğru Ö, T. Demir, M. Kulaç and A. Kundak, “The phenomenon of the month”, Turkish pediatrics archive, 41, 173-4 (2006).
  • Adaletli İ, S. Kuruğoğlu, F. Kılıç, S. Alhaj and T. Demir, “Multi-slice computed tomography angiography findings in an infant diagnosed with interrupted aortic arch”, Computerized Tomography Bulletin, 9, 37-39 (2006).
  • Köken, R., A. Bükülmez, H. Melek, T. Demir and Ü. Yiğit, “Congenital Factor XIII Deficiency: Case Report – Congenital Factor XIII Deficiency: Case Report” Zeynep Kamil Medical Bulletin, 37, 77-79 (2006).
  • Demir, T., S. Alhaj, A.G. Eroğlu and A. Güzeltaş, “Coexistence of restrictive cardiomyopathy and middle cerebral artery infarction: Case report”, Düzce Medical Faculty Journal, combined (1,2,3) issue, 11-13 (2006).
  • Demir, T., R. Köken, Ö. True, ş. Karaca and T.A. Şen, “A case of Henoch-Schonlein vasculitis with penis involvement”, Düzce Medical Faculty Journal, combined (1,2,3) issue, 8-9 (2006).
  • Köken, R., T. Demir, O. Öztekin, T.A. Şen and A. Bükülmez, “Tuberculin Skin Test in Childhood”, Journal of Medical Research, (In press – Date of acceptance: 2007).
  • Oztunç, F., K. Babaoğlu, E. Yilmaz, T. Demir and G. Ahunbay, “Predictive value of cardiothoracic ratio as a marker of severity of aortic regurgitation and mitral regurgitation”, Anadolu Kardiyol. Journal, 7,146-9 (2007).
  • Babaoğlu K, T. Demir, ş. Kutluğ, L. Saltık and C. Işlak, “Moyamoya disease and aortic coarctation in a patient with common brachiocephalic trunk”, Anadolu Kardiyol. Journal, 7, 85-7 (2007).
  • Şen T. A., R. Köken, T. Demir, H. Melek and A. Narcı, “Evaluation of Calcium Excretion with Spot Urine Calcium/Creatinine Ratios and 24-Hour Urine in Healthy Children in Afyonkarahisar Center”, Current Pediatrics, 5, 41-46 (2007) .
  • Melek, H., R. Köken, A. Bükülmez, T.A. Şen, T. Demir and E. Bahçeli, “Melkersson-Rosenthal Syndrome: A Case Report”, Current Pediatrics, 5, 82-84 (2007).
  • 14. Melek, H., T.A. Şen, R. Köken and T. Demir, “Coexistence of Collodion Baby and Congenital Hypothyroidism: Case Report”, Current Pediatrics, 5, 118-120 (2007).
  • Şen, T. A., O. Öztekin, A. Bükülmez, R. Köken, T. Demir and A. Narcı  “Jarcho-Levin Syndrome in Our Newborn Case with Cleft Palate”,  Current Pediatrics, 5, 125-128 (2007).
  • Demir, T. and G. Ahunbay, “Serum Carnitine Levels in Infants with Congestive Heart Failure”, Düzce Faculty of Medicine Journal, 10,10-14, (2008).
  • Şen, T.A., A. Bükülmez, R. Köken, H. Melek, T. Demir, R. Albayrak, B. Değirmenci and M. Acar, “Retinal Doppler Ultrasonography Findings and Homocysteine Levels of Children with Type 1 Diabetes Mellitus”, Current Pediatrics, 6, 19-25, (2008).
  • Ela, Y., H. Fidan, R. G. Sıvacı, T. Demir and E. Bakı, “Reflex Bradycardia During Intubation”, Journal of Surgical Arts, 2, (2009).
  • Ela, Y., R. G. Sıvacı, T. Demir and E. Bakı, “The Importance of Preoperative ECG Evaluation in the Light of a Case with Prolonged QT Syndrome; Case Report”, Journal of Surgical Arts, 2, (2009).
  • Şen, T.A., R. Köken, H. Melek, T. Demir, Ö. Güraksın, H. Uçar, G. Gün and F. Alpay “Hypothyroidism and muscle pseudohypertrophy: Kocher-Debre Semelaigne Syndrome”, Current Pediatrics, 7,37-40, (2009).
  • Şen, T.A., R. Köken, T. Demir and A. Bükülmez, “The Effect of Glycemic Control on Plasma Ghrelin and Serum IGF-1 Levels in Female Cases with Type 1 Diabetes”, Current Pediatrics, 7, 104-110 (2009).
  • Şen, T.A., R. Köken, T. Demir, Ö. Doğru, E. Bahçeli, “Acute cyanide poisoning occurring after eating apricot seeds”, Turkish journal of pediatrics, 3, 38-41, 2009
  • Şen, T.A., T. Demir, R. Köken, A.A. Kundak and F. Alpay, “Two Cases of Childhood Brucellosis with Atypical Presentation”, Current Pediatrics, 8, 39-43 (2010).
  • Reşit, K., A. Bükülmez, G.N. Köken, B. Eser, H. Şamlı, T. Demir and M. Solak, “Double Aneuploidy: A Case of Trisomy 21 with XYY” European Journal of General Medicine, 8, 338-341 (2011).
  • Cemalettin, G., A.A. Kundak, T. Demir, H. Uçur and F. Akci, “Portal Vein Agenesis: Case Report”, Abant Medical Journal, 1, 26-27 (2012).
  • Turkish Pediatric Institution
  • Turkish Pediatric Cardiology Association
  • Advanced Life Support in Children Educator Training – T.R. Afyokarahisar Governorship Provincial Health Directorate – 2008
  • Advanced Life Support Practitioner Training in Children – T.R. Afyokarahisar Governorship Provincial Health Directorate-2008
  • Ethical Approach in Clinical Research Course – T.R. Ministry of Health General Directorate of Medicine and Pharmacy – Ankara – 2009
  • Training of Trainers Course- Afyon Kocatepe University-2009
  • Educational Skills Course- Eskişehir Osmangazi University- 2012
  • Problem Based Education Course- Eskişehir Osmangazi University- 2012
  • Workshop on Examination with Multiple Choice Questions – Eskişehir Osmangazi University – 2012