Pediatric Hematology Assoc. Prof. Dr. Sema Aylan Gelen
✓ Medically verified profile Pediatric Hematology
Assoc. Prof. Dr. Sema Aylan Gelen
✓ Medically verified profile 24+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Altunizade Hospital · İstanbul
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About Assoc. Prof. Dr. Sema Aylan Gelen
Quick answer
Assoc. Prof. Dr. Sema Aylan Gelen is a Pediatric Hematology specialist at Acibadem Altunizade Hospital in İstanbul with 24+ years of experience.
She treats childhood acute leukemia, hyperleukocytosis, childhood acute lymphoblastic leukemia, pediatric hematologic malignancies, autoimmune hemolytic anemia, Glanzmann thrombasthenia, hemophilia, superwarfarin-associated coagulopathy, prolonged bleeding disorders, and pediatric posterior reversible encephalopathy syndrome. She speaks Turkish and English and offers online video consultation.
Assoc. Prof. Sema Aylan Gelen is an associate professor and pediatric hematologist-oncologist with a strong clinical and academic background. She completed her specialization in Pediatric Hematology and Oncology in 2022 and currently serves with Acibadem Health Group since 2023. M.D. Gelen is an active member of the Turkish Pediatric Hematology Association and the Turkish Hematology Association, contributing to professional networks and ongoing developments in pediatric blood disorders and oncology care. She is committed to delivering evidence-based, compassionate care for children and to advancing research and education in pediatric hematology-oncology.
Clinical Focus
Areas of Expertise
Conditions treated and procedures performed by this specialist.
Childhood acute leukemiaHyperleukocytosis in childhood acute leukemiaChildhood acute lymphoblastic leukemiaPediatric hematologic malignanciesAutoimmune hemolytic anemiaGlanzmann thrombastheniaHemophiliaSuperwarfarin-associated coagulopathyPediatric prolonged bleeding disordersPediatric posterior reversible encephalopathy syndrome
Background
Education
- 2022Pediatric Hematology and Oncology / Associate Professor Dr.
- 2013Kocaeli University Faculty of Medicine Pediatric Hematology and Oncology
- 2007Şişli Etfal Training and Research Hospital Pediatrics
- 2001Istanbul University Istanbul Faculty of Medicine
Career
Professional Experience
- 2023Acibadem Health Group
- 2017–2022Kocaeli University Faculty of Medicine, Department of Pediatric Hematology, Faculty Member
- 2015–2017Çorlu State Hospital, Subspecialty State Service Obligation / Specialist Doctor (Subspecialty)
- 2014Erzurum Regional Training and Research Hospital, Subspecialty State Service Obligation / Specialist Doctor (Subspecialty)/
- 2014Tekirdag State Hospital, Subspecialty State Service Obligation / Specialist Doctor (Subspecialty)
- 2009–2013Kocaeli University Faculty of Medicine / Pediatric Hematology Subspecialty training
- 2008–2009Rize İshakoğlu Çayeli State Hospital / State Service Obligation / Specialist Doctor
- 2008Şişli Etfal Training and Research Hospital / State Service Obligation / Specialist Doctor
- 2002–2007Şişli Etfal Training and Research Hospital / Pediatrics / Assistant Doctor
Affiliations
Professional Memberships
- Turkish Pediatric Hematology Association
- Turkish Hematology Association
Research
Selected Publications
- Management of Hyperleukocytosis in Childhood Acute Leukemia Without Leukapheresis and Rasburicase Prophylaxis. Journal of Pediatric Hematology/Oncology, 44(1), 12-18., Doi: 10.1097/Mph.0000000000002225 (Quartile=Q4) Aylan Gelen Sema, Sarper Nazan, Zengin Emine, Azizoğlu Mehmet
- Posterior Reversible Encephalopathy Syndrome Related to Covid-19 in a Child. Pediatrics International, 64(1), 14908, Doi: 10.1111/Ped.14908 (Quartile=Q4) Arslan Gazi, Besci Tolga, Karaca Ömer, Aylan Gelen Sema
- The Effect of Hand Hygiene Training in Pediatric Hematology Service on Hand Bacteria: A Prospective Clinical Study. Türkiye Klinikleri Pediatri Dergisi, 30(2), 127-137., Doi: 10.5336/Pediatr.2020-79155 Yakıcı Aslı Ece, Sarper Nazan, Dündar Devrim, Duymaz Fatma Zehra, Yıldız Arzu, Baydemir Canan, Aylan Gelen Sema, Zengin Emine
- Prognostic Evidence of LEF1 Isoforms in Childhood Acute Lymphoblastic Leukemia. International Journal of Laboratory Hematology, 43(5), 1093-1103., Doi: 10.1111/Ijlh.13513 (Quartile=Q3) Erbilgin Yücel, Hatırnaz Ng Özden, Can İsmail, Fırtına Sinem, Küçükcankurt Fulya, Karaman Serap, Karakaş Zeynep, Celkan Tülin Tıraje, Zengin Emine,
- Autoimmune Hemolytic Anemia due to Spondyloenchondrodysplasia with Spastic Paraparesis and Intracranial Calcification due To Mutation in ACP5 Journal of Pediatric Genetics, Doi: 10.1055/S-0041-1736560 Aylan Gelen Sema, Kara Bülent, Eser Şimşek Işıl, Güngör Mesut, Zengin Emine, Sarper Nazan
- Induction Deaths and Treatment-related Mortality in Childhood Acute Lymphoblastic Leukemia with ALL-BFM Protocols Kocaeli Medical Journal, 10(1), 30-37., Köse Duygu, Sarper Nazan, Zengin Emine, Aylan Gelen Sema
- Management Of Surgeries in Glanzmann Thrombasthenia: Single Center Experience. Kocaeli Medical Journal, 10(3), 252-260., Doi: 10.5505/Ktd.2021.53323 Aylan Gelen Sema, Sarper Nazan
- Hemophilia Specific Quality of Life Index in Turkish Children and Young Adults Cross-Sectional Study from a Single Center. Kocaeli Medical Journal, 10(3), 203-212., Doi: 10.5505/Ktd.2021.26234 Deniz Adnan, Sarper Nazan, Zengin Emine, Aylan Gelen Sema
- Exposure to Superwarfarins in Rodenticides: Development of Prolonged Bleeding Defect in an Adolescent Turkiye Klinikleri Journal of Pediatrics, 29(2), 124-127., Doi: 10.5336/Pediatr.2019-72812 Aylan Gelen Sema, Zengin Emine, Sarper Nazan
- Etiologic Evaluation in Children with Acute Urticaria Admitted to a City Hospital in Turkey. Asthma Allergy Immunology Çetinkaya Feyzullah, Paslı Uysalol Ezgi, Aylan Gelen Sema, Besbenli Kevser
Good to Know
Frequently Asked Questions
What is Dr. Sema Aylan Gelen's specialty?
Dr. Sema Aylan Gelen is a specialist in Pediatric Hematology 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. Sema Aylan Gelen practise at?
Dr. Sema Aylan Gelen 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. Sema Aylan Gelen?
Consultations with Dr. Sema Aylan Gelen 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. Sema Aylan Gelen?
You can request an appointment with Dr. Sema Aylan Gelen 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. Sema Aylan Gelen?
Yes. Dr. Sema Aylan Gelen 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. Sema Aylan Gelen have?
Dr. Sema Aylan Gelen has around 24 years of professional experience in Pediatric Hematology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Sema Aylan Gelen?
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. Sema Aylan Gelen?
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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