Gynecology & Obstetrics Prof. Dr. Ahmet Tayyar
✓ Medically verified profile Gynecology & Obstetrics
Prof. Dr. Ahmet Tayyar
✓ Medically verified profile 15+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Altunizade Hospital · İstanbul
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About Prof. Dr. Ahmet Tayyar
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Prof. Dr. Ahmet Tayyar is a Gynecology & Obstetrics specialist at Acibadem Altunizade Hospital in İstanbul with 15+ years of experience.
His clinical focus includes maternal-fetal medicine and perinatology, covering preeclampsia, preterm prelabor rupture of membranes, fetal growth restriction, small-for-gestational-age fetus, intrahepatic cholestasis of pregnancy, congenital diaphragmatic hernia, fetal anemia due to red blood cell alloimmunization, and procedures such as fetoscopic endoluminal tracheal occlusion, intrauterine transfusion, fetal cardiac tissue Doppler imaging, uterine…
Prof. Ahmet Tayyar is an associate professor in Obstetrics and Gynecology with advanced training from Istanbul Medipol University, where he completed his associate professorship in 2018. He brings clinical expertise to maternal-fetal medicine and perinatology, and has been affiliated with Acibadem Health Group since 2020. An active member of the Turkish Society of Maternal-Fetal Medicine and Perinatology, he focuses on high-quality care for pregnant patients and complex fetal conditions, combining academic insight with hands-on clinical practice.
Clinical Focus
Areas of Expertise
Conditions treated and procedures performed by this specialist.
PreeclampsiaPreterm prelabor rupture of membranesCongenital diaphragmatic herniaFetal anemia due to red blood cell alloimmunizationFetal growth restrictionSmall-for-gestational-age fetusIntrahepatic cholestasis of pregnancyFetal laryngotracheoesophageal cleftUpper limb hemimeliaFetoscopic endoluminal tracheal occlusionIntrauterine transfusionFetal cardiac tissue Doppler imagingUterine artery Doppler screeningPreeclampsia risk screening
Background
Education
- 2018Istanbul Medipol University Faculty of Medicine / Department of Obstetrics and Gynecology / Associate Professor
- 2016King`s College Hospital NHS Foundation Trust, Department of Obstetrics, Harris Birthright Research Center For Fetal Medicine – Fetal Medicine Research Institute, London, England / Perinatology Subspecialist
- 2011Erciyes University Faculty of Medicine Gynecology and Obstetrics
- 2005Ankara University Faculty of Medicine
Career
Professional Experience
- 2020Acibadem Health Group
- 2018–2020Medipol Mega University Hospital / Department of Obstetrics and Gynecology / Perinatology Clinic
- 2016–2018Istanbul Health Sciences University Kanuni Sultan Süleyman Training and Research Hospital / Perinatology Clinic
- 2013–2016King`s College Hospital NHS Foundation Trust, Department of Obstetrics, Harris Birthright Research Center For Fetal Medicine – Fetal Medicine Research Institute, London, England
- 2011–2013Nigde State Hospital / Gynecology and Obstetrics Clinic
Affiliations
Professional Memberships
- Turkish Society of Maternal-Fetal Medicine and Perinatology
Research
Selected Publications
- Maternal serum galectin-1 and galectin-3 levels in pregnancies complicated with preterm prelabor rupture of membranes The Journal of Maternal-Fetal & Neonatal Medicine, 2020, 33:5, 861-868, DOI: 10.1080/14767058.2019.1637409 Kaya B, Turhan U, Sezer S, Kaya S, Dag I, Tayyar A.
- Type 4 laryngotracheoesophageal cleft detected during fetoscopic endoluminal tracheal occlusion in a fetus with severe congenital diaphragmatic hernia Ultrasound Obstet Gynecol. 2020, doi:10.1002/uog.20355 Yuksel, M.A. and Tayyar A,
- The assessment of cardiac function with tissue Doppler imaging in fetuses with congenital diaphragmatic hernia The Journal of Maternal-Fetal & Neonatal Medicine, 2020, 33:7, 1233-1238, DOI: 10.1080/14767058.2019.1674806 Kaya B, Tayyar A, Sezer S, Kaya S.
- Maternal serum mitofusin-2 levels in patients with preeclampsia: the possible role of mitochondrial dysfunction in preeclampsia The Journal of Maternal-Fetal & Neonatal Medicine, 2019 ,DOI: 10.1080/14767058.2018.1532497 Aydogan BM, Yuksel I, Tayyar A, Aslan Cetin B, Tayyar AT, Koroglu N.
- Wnt signaling pathway in early-and late-onset preeclampsia: evaluation with Dickkopf-1 and R-Spondin-3 glycoproteins Archives of gynecology and obstetrics. 2019 Jun 1;299(6):1551-6. Tayyar AT, Karakus R, Sahin ME, Topbas NF, Sahin E, Karakus S, Yalcin ET, Tayyar A.
- Comparison of fetal cardiac functions between small-for-gestational age fetuses and late-onset growth-restricted fetuses Journal of Perinatal Medicine, 2019, DOI: https://doi.org/10.1515/jpm-2019-0206 Kaya B, Tayyar A, Kanber Acar D, Kaya S.
- Assessment of fetal right ventricular myocardial performance index changes following intrauterine transfusion The Journal of Maternal-Fetal & Neonatal Medicine. 2019 Oct 12:1-4. Temel Yüksel İ, Acar D, Turhan U, Aslan ÇetIn B, Köroğlu N, Şenol G, Tayyar A, Yüksel MA.
- Perinatal outcomes of intrauterine transfusion for foetal anaemia due to red blood cell alloimmunisation Journal of Obstetrics and Gynaecology. 2019 Aug 26:1-5. Şavkli AÖ, Çetin BA, Acar Z, Özköse Z, Behram M, Çaypinar SS, Tayyar A, Yüksel MA.
- Maternal serum sestrin 2 levels in preeclampsia and their relationship with the severity of the disease Hypertens Pregnancy, 2018, 1-7. doi:10.1080/10641955.2018.1540702 Tayyar, A. T., Tayyar, A., Kozali, S., Karakus, R., Eser, A., Abide Yayla, C., Yalcın ET, Dag I, Eroglu, M.
- Increased maternal C1q/TNF-related protein-1 (CTRP-1) serum levels in pregnancies with preeclampsia The Journal of Maternal-Fetal Neonatal Medicine, 2018, Doi :10.1080/14767058.2018.1498838 Acar DK, Tayyar A, Yuksel A, Atis A, Ekiz A, Topcu G.
- Maternal cytoglobin (CYGB) serum levels in normal and preeclamptic pregnancies. The Journal of Maternal-Fetal Neonatal Medicine, 2018, Doi: 10.1080/14767058.2017.1421927 Tayyar AT, Tayyar A, Kozali S, Karakus R, Karakus S, Temel YI, Dag Ismail,Yetkin Yildirim Gonca,Demirci Oya
- Increased levels of the novel hepatokine fetuin B in patients with intrahepatic cholestasis of pregnancy. The Journal of Maternal-Fetal Neonatal Medicine 2017; 1-6., Doi: 10.1080/14767058.2017.1413546 Koroglu N, Tayyar A, Tola EN, Yetkin YG, Temel YI, Aslan Cetin B, Dag I, Acar DK.
- Could first- and second-trimester biochemical markers for Down Syndrome have a role in predicting intrahepatic cholestasis of pregnancy? Archives of Medical Science 2017; Doi: 10.5114/aoms.2017.69865 Tayyar AT, Tayyar A, Atakul T, Yayla CA, Kilicci C, Eser A, Karakus R, Herkiloglu D, Cundubey C R, Tayyar M.
- Evaluation of FGF-19 and Beta-Klotho as biomarkers in patients with intrahepatic cholestasis of pregnancy Archieves of Medical Science 2017; Doi: 10.5114/aoms.2017.72424 Tayyar AT, Tayyar A, Kozali S, Karakus R, Koroglu N, Temel Yuksel I, Yetkin Yildirim G, Dag I, Eroglu M
- Upper limb hemimelia in a twin pregnancy which was obtained by an ICSI and PGD in a woman with mosaic Turners Syndrome and the prognosis. Organogenesis 2017;13(4), 179-182., Doi: 10.1080/15476278.2017.1358842 Tayyar AT, Tayyar A, Eser A, Kilicci C, Yenidede I, Selcuk S.
- Maternal copeptin levels in intrahepatic cholestasis of pregnancy J Matern Fetal Neonatal Med. 2017 Jun; 14:1-5. doi: 10.1080/14767058.2017.1335708. Tayyar A, Temel Yuksel I, Koroglu N, Tayyar A.T, Davutoglu Alıcı E, Akkaya Fırat A, Aslan Cetin B.
- Mean arterial pressure at 12, 22, 32 and 36 weeks gestation in screening for preeclampsia Ultrasound Obstet Gynecol. 2016 May;47(5):573-9. Tayyar A, Krinitakis K, Wright A, Wright D, Nicolaides KH.
- Uterine artery pulsatility index in the three trimesters of pregnancy: effects of maternal characteristics and medical history. Ultrasound Obstet Gynecol. 2015 Jun;45(6):689-97. Tayyar A, Guerra L, Wright A, Wright D, Nicolaides KH.
- Competing risk model in screening for preeclampsia by mean arterial pressure and uterine artery pulsatility index at 30-33 weeks” gestation Fetal Diagn Ther. 2014;36(1):18-27. Tayyar A, Garcia-Tizon Larroca S, Poon LC, Wright D, Nicolaides KH.
- Competing risks model in screening for preeclampsia by biophysical and biochemical markers at 30-33 weeks” gestation. Fetal Diagn Ther. 2014;36(1):9-17. Garcia-Tizon Larroca S, Tayyar A, Poon LC, Wright D, Nicolaides KH.
Good to Know
Frequently Asked Questions
What is Dr. Ahmet Tayyar's specialty?
Dr. Ahmet Tayyar is a specialist in Gynecology & Obstetrics at Acibadem. For a personalised assessment, the Acibadem international patient team can review your medical history and reports and explain the suitable next steps.
Which hospital does Dr. Ahmet Tayyar practise at?
Dr. Ahmet Tayyar sees patients at Acibadem Altunizade Hospital in İstanbul. The international patient team can confirm current availability and help you plan a consultation or visit.
What languages can I use when consulting Dr. Ahmet Tayyar?
Consultations with Dr. Ahmet Tayyar are supported in Turkish and English. In addition, Acibadem provides multilingual coordination and interpreter support so international patients can communicate clearly throughout their care.
How can I book an appointment with Dr. Ahmet Tayyar?
You can request an appointment with Dr. Ahmet Tayyar using the appointment form on this page, or by contacting the Acibadem international patient team by phone or WhatsApp. After you share your details, the team checks availability and confirms your appointment, usually within 24 hours.
Is an online video consultation available with Dr. Ahmet Tayyar?
Yes. Dr. Ahmet Tayyar offers online video consultations, so you can discuss your condition and reports with the specialist before making any travel arrangements. The international patient team can help you schedule a secure video visit.
How many years of experience does Dr. Ahmet Tayyar have?
Dr. Ahmet Tayyar has around 15 years of professional experience in Gynecology & Obstetrics. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Ahmet Tayyar?
Yes. Acibadem supports international patients end to end — from the first consultation and treatment planning through appointment scheduling, interpretation during the stay and follow-up after returning home. Sharing your case for an initial assessment is free of charge.
How do I get a second opinion involving Dr. Ahmet Tayyar?
You can request an independent review of your diagnosis and proposed treatment. Share your medical reports through the consultation or "Ask a Doctor" form on this site, and the team will arrange a specialist review and explain the available options.
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35+Years of expertise
90+Countries served
20+Languages spoken
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