1. Sen O, Aydın MV, Erdogan F, Ozerdem OR, Anlatıcı R. Osteogaleal Flaps in Pediatric Neurosurgery. European Society for Pediatric Neurosurgery, Kiruna, Lapland, Sweden, 2002.
2. Erdogan B, Aydin MV, Sen O. Hemispheric Cerebrovascular Venous Thrombosis Due to Closed Head Injury In The Late Period.European Society for Pediatric Neurosurgery, Kiruna, Lapland, Sweden, 2002.
3. Aydin MV, Sen O, Erdogan B, Sener L, Cekinmez M. Lumbar Disc Herniation In The Pediatric Patient. European Association of Neurosurgical Societies (EANS), 12th European Congress of Neurosurgery (EANS), Proceedings; 685-687, Lisbon, Portugal, 2003.
4. Aydin MV, Sen O, Erdogan B, Sener L, Cekinmez M. Traumatic Atypical Spinal Subdural Hematoma In A Child. European Association of Neurosurgical Societies (EANS), 12th European Congress of Neurosurgery (EANS), Proceedings; 689-692, Lisbon, Portugal, 2003.
5. Sen O, Aydin MV, Altinors N, Erdogan B, Kayaselcuk F, Kizilkilic O. Recurrent Tumor or Radionecrosis? European Association of Neurosurgical Societies (EANS), 12th European Congress of Neurosurgery (EANS), Proceedings; 491-495, Lisbon, Portugal, 2003.
6. Aydin MV, Sen O, Erdogan B, Sener L. Intradural disc mimicking a spinal tumor lesion: Case report. European Association of Neurosurgical Societies (EANS), 12th European Congress of Neurosurgery (EANS), Abstract book; 297, Lisbon, Portugal, 2003.
7. Aydin MV, Sen O, Erdogan B, Kayaselcuk F, Bolat F, Caner H, Altinors N. Analysis and Prevalence of Inflammatory Cells In Subtypes of Lumbar Disc Herniations Under Cyclooxygenase-2 Inhibitor Therapy. EANS Wintermeeting, Budapest, 2004.
8. Aydin MV, Sen O, Erdogan B, Kayaselcuk F, Caner H, Altinors N. Primary Primitive Neuroectodermal Tumor Within The spinal Epidural Space: Report of A Case and Review of The Literature. EANS Wintermeeting, Budapest, 2004.
9. Aydin MV, Caner H, Sen O, Atalay B, Ozen O, Cekinmez M, Erdogan B, Altinors N. Effect of Melatonin On Cerebral Vasospasm Following Experimental Subarachnoid Hemorrhage. EANS Wintermeeting, Budapest, 2004.
10. Sen O, Kizilkilic O, Aydin MV, Yalcın O, Erdogan B, Cekinmez M, Caner H, Altinors N. The Role of Closed-Suction Drainage In Preventing Epidural Fibrosis and its Correlation With A New Grading System of Epidural Fibrosis on The Basis of MRI. EANS Wintermeeting, Budapest, 2004.
11. Sen O, Ertorer ME, Aydin MV, Erdogan B, Altinors N, Zorludemir S. Silent Pituitary Macroadenoma Co-Secreting Growth Hormone and Thyroid Stimulating Hormone: Case Report. EANS Wintermeeting, Budapest, 2004.
12. Aydin MV, Sen O, Erdogan B, Sener L, Caner H, Altinors N. Anterior Cervical Fusion With PCB Cage-Plate System. EANS Wintermeeting, Budapest, 2004.
13. Sener L, Aydin MV, Sen O, Erdogan B. Giant Cell Tumour of Cervical Vertebra In Close Relation to The Vertebral Artery. EANS Wintermeeting, Budapest, 2004.
14. Sener L, Aydin MV, Sen O, Erdogan B, Kilic D, Tercan F. Mediastinal Tumour, Haemoptysis, and Fatal Cerebral Air Embolism.EANS Wintermeeting, Budapest, 2004.
15. Bilen A, Sen O, Torgay A, Erdoğan B, Acil M, Turkoz A, Donmez A. Effects of addition of intravenous or epidural methylprednisolone to morphine in patients undergoing lumbar laminectomy. XXIV Annual ESRA Congress, Berlin, 2005.
16. Sarica F B, Cekinmez M, Tufan K, Sen O, Altinors M N. Granular Cell Tumor demonstrating prevalence to Clivus: Case Report. 5th Meeting of the Asian Society for Neuro-oncology, 2-4 Kasım 2007, İstanbul. Elektronik poster sunum.
17. Sarica F B, Cekinmez M, Tufan K, Sen O, Altinors M N. Lumbar vertebra metastasis of colorectal adenocarcinoma: Case Report. 5th Meeting of the Asian Society for Neuro-oncology, 2-4 Kasım 2007, İstanbul. Elektronik poster sunum.