Bekar A, Alkan T, Korfalı E, Özlük K: Decompressive Craniectomy. At The Treatment Of Cerebral Infarct In Rats. 11th International Congress Of Neurological Surgery. 6-11 July 1997, Amsterdam
Aksoy K, Bekar A, Türeyen K, Çelik S: Sinus Pericrani; A Case of Childhood. 11th International Congress of Neurological Surgery. 11th International Congress Of Neurological Surgery. 6-11 July 1997, Amsterdam
Bekar A, Aksoy K, Doğan Ş, Tolunay Ş, Sevinir B, Özmen A: An Orbital Langerhan’s Histiocytosis Case of the Childhood. 11th International Congress Of Neurological Surgery. 6-11 July 1997, Amsterdam
Doygun M, Bekar A, Çelik SE, Tolunay Ş: Intradural Chordoma of Cervical Spine. 11th International Congress Of Neurological Surgery. 6-11 July 1997, Amsterdam
Bekar A, Korfalı E, Çalışır B, Tolunay Ş: Intracerebral and Subarachnoid Hemorrhage Complicating Neuro-Behçet’s Disease. 13th International Congress of Neurological Surgery (EANS), 19-24 September 1999, Copenhagen, Danimarka
Korfalı E, Bekar A, Aksoy K, Doygun M, Türeyen K, Çelik S: Spinal tuberculosis. EANS, Winter Meeting, February 20-22, 1997, Zaragoza, İspanya
Korfalı E, Bekar A, Kahveci FŞ, Çelik SE, Boyacı S: Effects Of Hypothermia In Cerebral Hemorrhage. Congress of Neurological Surgeons, Sept 27- Oct 2, 1997, New Orleans, ABD
Korfalı G, Kahveci FŞ, Korfalı E, Bekar A: Neuroprotective Effects Of Hypothermia In Cerebral Hemorrhage. I. Intensive Care Congress. 1998, Brussels, Belçika
Kanpolat Y, Savaş A, Bekar A, Berk Ç: Percutaneous Controlled Radiofrequency Trigeminal Rhizotomy For The Treatment Of Idiopathic Trigeminal Neuralgia: A 25 Year Experience With 1600 Patients. Congress of Neurological Surgeons 49th Annuals Meeting, Oct 30-Nov 4 1999, Boston, Massachusetts, ABD
Korfalı E, Bekar A, Gülsen K, Kahveci FŞ: Effects Of Hypothermia In Cerebral Hemorrhage. Congress of Neurological Surgeons, Sept 23-28 2000, San Antorio, Texas, ABD
Bilgin H, Kelebek N, Bekar A, Korfalı G, Kerimoğlu B: A Complication Of Trigeminal Nerve Stimulation During Radiofrequency Termocoagulation: Sudden ST Segment Elevation. Euro-Neuro Congress 2000, Brussels, Belçika
Bilgin H, Korfalı G, Polat Ş, Kaya FN, Korfalı E, Bekar A:Comparison Of Hemodynamic Effects, Recovery And Early Neurologic Status With TIVA And Isoflurane. Euro-Neuro Congress 2000, Brussels, Belçika
Bekar A, Korfalı E, Başkan Z: The Role Of Per-Operative X-Ray During Lumbar Disc Surgery. World Spine I, August 27-September 1, 2000, Berlin, Almanya.
Bilgin H, Moğol EB, Bekar A, İşçimen R, Korfalı G: Comparison of the effects of fentanyl, alfentanil and remifentanil on haemodynamic and respiratory parameters in stereotactic brain biopsy. 10th ESA Anniversary Meeting and 24th annual Meeting Euroanaesthesia 2002. 6-9 April 2002, Nice, Fransa
Egeli Ü, Yakut T, Bekar A, Doygun M, Oğul E: The relationship of chromosomes 7, 9, 10, 17 aneuploidies and p53 gene alterations between the low and high grade astrocytomas, using interphase FISH technique. European Meeting on Psychosocial Aspects of Genetics 2002. 25-29 May 2002, Strasbourg, Fransa
Taşkapılıoğlu Ö, Caner B, Bekar A, Kahveci F, Korfalı G, Korfalı E, Aksoy K, Doygun M: Predictors of Outcome in Severely Head Injured Patients. 5th European Congress of Trauma and Emergency Surgery , 30-31 December 2002, İstanbul
Doğan Ş, Bekar A, Şahin S, Taşkapılıoğlu Ö, Caner B, Yılmazlar S, Aksoy K: Predictors of Outcome in Severely Head Injured Children. 5th European Congress of Trauma and Emergency Surgery , 30-31 December 2002, İstanbul
Şahin S, Bekar A, Doğan Ş, Aydın S, Abas F, Aksoy K: Diagnostic Testing and Treatment modalities for Mild and Moderate Head Injured Pediatric Patients. 5th European Congress of Trauma and Emergency Surgery , 30-31 December 2002, İstanbul
Şahin S, Doğulu F, Doğan Ş, Onk A, Bekar A, Kaymaz K, Baykaner K, Aksoy K: Pediatric Head Injury: Multicentral Study. 30th Annual Meeting of International Society for Pediatric Neurosurgery. 27-31 October 2002, Kyoto Japan
Caner B, Abaş F, Yılmaz E, Akalın H, Korfalı G, Kahveci S F, Bekar A, Doğan Ş, Yılmazlar S, Korfalı E, Aksoy K: Ventilatör-Associated Pneumonia In Neurosurgery Intensive Care Unit: Causative Microorganisms, Risk Factory and Treatment. 12th European Congress of Neurosurgery (EANS), 7-12 September 2003, Lisboa / Portugal.
Taşkapılıoğlu Ö, Bulut G, Bekar A, Korfalı E, Aksoy K: Supratentorial Pressure Difference In Bilateral ıntracranial Pressure Monitorization: Preliminary Results. 12th European Congress of Neurosurgery (EANS), 7-12 September 2003, Lisboa / Portugal.
Abaş F, Caner B, Bekar A, Doğan Ş, Yılmazlar S, Korfalı E, Aksoy K. Intraparenchymal Intracranial Pressure Monitorızation and Complications. 12th European Congress of Neurosurgery (EANS), 7-12 September 2003, Lisboa / Portugal.
Caner B, Abaş F, Yılmaz E, Akalın H, Bekar A, Doğan Ş, Yılmazlar S, Korfalı E, Aksoy K. Nosocomial Meningitis in Neurosurgery Practice: Risc Factors, Causative Microorganisms and Treatment. 12th European Congress of Neurosurgery (EANS), 7-12 September 2003, Lisboa / Portugal.
Abaş F, Caner B, Yılmaz E, Akalın H, Bekar A, Doğan Ş, Yılmazlar S, Korfalı E, Aksoy K. External Ventricular Drainage System Complications and Correlation of Infection Rate With Duration of Catheter. 12th European Congress of Neurosurgery (EANS), 7-12 September 2003, Lisboa / Portugal.
Bekar A, Bilgin H, Korfalı G, Kocaeli H, Taşkapılıoğlu Ö, Korfalı E: Minimally Invasive Awake Craniotomy Guided by Steiner-Lindquist stereotactic System. XVI. Th Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN) . 23-26 June 2004, Viyana/Avusturya
Özcan T, Taşkapılıoğlu M Ö, Kocaeli H, Aksoy K, Korfalı E, Doygun M, Bekar A: Retrospective Analyses of Glial Tumors.4th Meeting of the Asian Society for Neuro-Oncology. 04-06 November 2005, Taiwan
Türkkan A, Kocaeli H, Korfalı E, Aksoy K, Doygun M, Bekar A, Yılmazlar S: Retrospective Analyses of Meningiomas. 4th Meeting of the Asian Society for Neuro-Oncology. 04-06 November 2005, Taiwan
Şahin S, Taşkapılıoğlu Ö, Bekar A, Hakyemez B, Sav A, Aksoy K: Clinical, Radiological and Pathological Aspects of Lhermitte-Duclos Disease. 4th Meeting of the Asian Society for Neuro-Oncology, 04-06 November 2005, Taiwan.
Savran M, Taşkapılıoğlu Ö, Bekar A, Aksoy K, Korfalı E, Doygun M, Kocaeli H: Retrospective Analysis of Brain Metastasis. 4th Meeting of the Asian Society for Neuro-Oncology, 04-06 November 2005, Taiwan.
Bekar A, Kocaeli H, Bilgin H, Korfali G, Korfali E, Taskapilioglu Ö: Minimally in vasive awake craniotomy using steiner-lindquist stereotactic laser guidance. 7th Congress The European Association for Neuro-Oncology, 14-17 September 2006, Vienna/Austria.
Dogan S, Savran M, Korfalı E, Bekar A, Yılmazlar S, Kocaeli H: Supratentorial Giant Meningiomas: A Review of 84 Cases. 5th Meeting Of The Asian Society For Neuro-Oncology. 02-04 Kasım 2007, İstanbul.
Bekar A, Tunca B, Guler G, Egeli U, Tolunay S: Investigation of FHIT gene expression in Turkish patients with brain metastases derived from NSCLC. 5th Meeting Of The Asian Society For Neuro-Oncology. 02-04 Kasım 2007, İstanbul.
Kahraman A, Bekar A, Kahveci R, Kuytu T, Tolunay Ş. Glioblastoma Multiforme in Fascia Lata. The 3rd Quadrennial Meeting of the World Federation of Neuro-Oncology, May 11-14, 2009, Yokohama, JAPAN.
Cecener G, Tunca B, Bekar A, Egeli Ü, Vatan Ö, Tolonay Ş. A Novel MMAC/PTEN Gene Mutation in a GBM Patient. The 3rd Quadrennial Meeting of the