2002 – 2008 – Siriraj Medical School, Mahidol University
2008 – 2013 – Department of Internal Medicine, Rajavithi Hospital
2013 – 2015 – Department of Cardiology, Internal Medicine Rajavithi Hospital
2019 – 2020 – Cardiology Intervention, Department of Cardiology, Internal Medicine Rajavithi Hospital
Languages: English and Thai
Dr. Gun Keorochana specializes in spinal interventions and minimally invasive spine surgery. His expertise includes MIS TLIF, LLIF, MIDLF, endoscopic spine surgery, and vertebroplasty/kyphoplasty. He received his Doctor of Medicine with First Class Honors from the Faculty of Medicine Siriraj Hospital, Mahidol University in 2000.
Dr. Keorochana completed orthopedic surgery training at Srinakarin Hospital, Khon Kaen University in 2004. He then joined a spinal surgery program at Ramathibodi Hospital, Mahidol University in 2006. He continued his training with a spine fellowship at UCLA Comprehensive Spine Center from 2008 to 2010. In 2010, he also completed a visiting fellowship in minimally invasive and endoscopic spine surgery at the Desert Institute for Spine Care in Phoenix, Arizona.
Dr. Anton Wohl leads the Brain Tumors Unit at Sheba Medical Center (since 2026). He is a neurosurgeon specializing in neuro-oncology, brain tumor surgery, and stereotactic radiosurgery.
He performs complex tumor operations with intraoperative MRI and functional mapping. He also uses fluorescence guidance, neuronavigation, and awake craniotomy to help remove tumors safely and preserve function.
Accreditations: Israeli Board Certification in Neurosurgery; Israeli medical license; advanced international fellowships and training, including the Mayo Clinic (USA).
Research: author and co-author of peer-reviewed publications on glioblastoma, malignant brain tumors, radiosurgery, and experimental therapies.
Dr. Eytan Aharon Ben‑Ami, MD, is a Senior Physician in the Sarcoma and Bone Oncology Service at Sheba Medical Center. He heads the Oncology Division and the Early-Phase Clinical Trials Unit. He founded the Sheba Clinical Research Organization. He is an academic affiliate at Tel Aviv University.
He specializes in sarcomas and primary bone tumors, including soft tissue sarcoma, liposarcoma, leiomyosarcoma, and osteosarcoma. He leads Phase I trials in targeted therapy and immunotherapy. He designs personalized treatment plans for rare cancers. He also develops patient-centered programs, including pilots in advanced immunotherapy delivery.
He completed a fellowship in Sarcoma and Bone Oncology at the Dana-Farber Cancer Institute/Harvard Cancer Center. He has authored more than 40 publications on early detection, molecular and viral mechanisms, and new cancer therapies.
Parkinson's Disease Diagnosis and Treatments
Alzheimer's Diagnosis and Treatments
Epilepsy (Epileptic)
EEG and Treatment
Muscle and Nerve Disease Diagnosis and Treatments
Vertigo Diagnosis and Treatment
Restless Leg Syndrome
Stroke (Cerebral Palsy) Diagnosis and Treatment
Bartın State Hospital (2007-2009)
VM Medical Park Samsun Hospital (2009-2017)
VM Medical Park Samsun Hospital - Deputy Chief Physician (2019-2021)
Samsun Education and Research Hospital (2021-2022)
Çarşamba State Hospital
Private Atasam Samsun Hospital (2022-2024)
Karadeniz Technical University (1989-1995)
Ondokuz Mayis University Faculty of Medicine (2001-2006)
Personal information
Title: Associate Professor
Branch: Anesthesiology
Work History:
1 Gayrettepe Florence Nightingale Hospital
Medical Specialties and Subspecialties:
1 Waist and Neck Pain
2 Cancer Pains
3 Spine Pains
4 Pain
Education
1991 - Istanbul University Cerrahpaşa Faculty of Medicine
1996 - Istanbul University Cerrahpaşa Faculty of Medicine Anesthesia and Reanimation
Specialization Training
2017 - Fellow of Interventional Pain Practice
2018- Certifield Interventional Pain Sonologist
International Articles
1 ÇÖMLEK SAVAŞ, MUTLU AYHAN, ÖZGÖNENEL EBRU, KAHRAMAN SİNAN, ÖZGÖNENEL LEVENT (2021). Atypical Fem-oral Fracture After Discontinuing Long-Term Bisphosphonate Use. Demiroğlu Bilim University Florence Nightingale
Medical Journal, 7(1), 52-56., Doi: 10.5606/fng.btd.2021.25048
2 POTTERY WAR, ORDU AYLIN (2021). Interventional Pain Management During SARS-CoV-2 Pandemic. Signa Vitae, 17(4),
178-184., doi: 10.22514/sv.2021.008
3 SAVAS COMLEK(2021). Transverse Abdominis Plane Block-Based Multimodal Analgesia Protocol Reduces Tramadol
Need After Cesarean Section. Bağcılar Medical Bulletin, 6(2), 134-141., Doi: 10.4274/BMB.galenos.2021.11.077
4 ÇÖMLEK SAVAS, SAĞLAM SEZER (2021). A New Approach for Leptomeningeal Metastases: Chemotherapy Adminis-
tered Through Lumbar Intrathecal Port. Arquivos de Neuro-Psiquiatria, Doi: 10.1590/0004-282X-ANP-2020-0554
5 SAVAS COMLEK(2021). Treatment Methods for Bone Metastasis-Induced Pain. Turkish Journal of Oncology, 36(1), 73-
78., Doi: 10.5505/tjo.2021.S1019
6 SAVAS COMLEK(2021). Ultrasound-Guided Interventions During Pregnancy for Lumbosacral Pain Unresponsive to Con-
servative Treatment: A Retrospective Review. Journal of Clinical Ultrasound, 49(1), 20-27., Doi: 10.1002/jcu.22923
7 SAVAS COMLEK(2020). Pain Control with Splanchnic Neurolysis in Pancreatic Cancer Patients Unresponsive to Celiac
Plexus Neurolysis. Journal of Pain Research, 13, 2023-2031., doi: 10.2147/JPR.S266689
8 SAVAS COMLEK(2020). Chemotherapy-Induced Pneumonitis Associated with Transient CA 15-3 Elevation. Journal of
Oncology Pharmacy Practice, 26(7), 1750-1753., Doi: 10.1177/1078155220904994
9 RAHİMİ MEHDİ, GÖĞÜZ DEMET, KAYA GÜNER, BOZKURT PERVİN, ÇÖMLEK SAVAŞ (2000). Patient Controlled Analgesia
(PCA) Application in Pediatric Patients. Ağrı, 12(1), 19-26.
10 BOZKURT PERVİN, KAYA GÜNER, TUNALI YUSUF, ÇÖMLEK SAVAŞ (1996). Bradyarrhythmia During Reperfusion in Kidney Transplantations (Case Report). Journal of the Turkish Society of Anesthesiology and Reanimation, 24(2), 92-94.
Dr. Yaacov Lawrence, MA, MBBS, MRCP, is Chair of Radiation Oncology at Sheba Medical Center. He has nearly 30 years of experience in precision radiation oncology and neuro-oncology.
He is an expert in advanced radiation therapy and radiosurgery. He performs stereotactic radiosurgery for brain tumors. He leads Sheba’s GI Cancer Program in gastrointestinal oncology. He also provides precision care for lung and prostate cancers. He pioneered celiac plexus radiosurgery for severe pain from pancreatic cancer.
Training and credentials: MA and MBBS (Cambridge and UCLH); MRCP (RCP); Radiation Oncology fellowship (Thomas Jefferson University). Honors include the ASCO Young Investigator Award and Fellow of ASTRO (FASTRO). He has authored over 280 publications. He is Director of the Center for Translational Radiation Oncology and an Associate Professor at Tel Aviv University.
Dr. Ertuğrul Ercan is a Professor of Cardiology. He completed his training at Ege University and Çanakkale Onsekiz Mart University. His main areas of expertise are interventional cardiology, atherosclerosis, valve diseases, and coronary artery disease. He also focuses on inflammation and coagulation, cardiovascular immunology, and stem cell therapy.
Dr. Ercan has held key academic and administrative positions. He served as Head of Cardiology and Dean at Çanakkale Onsekiz Mart University. He was also the Medical Director at İzmir Medical Point Hospital. He gained international experience at the Cleveland Clinic and in Melbourne, Australia.
He holds the European Cardiologist Diploma and is a Fellow of the European Society of Cardiology. Dr. Ercan is also a member of several national and international cardiology associations and working groups.
Dr. Mustafa Dogdus is a cardiologist who graduated from Ege University Faculty of Medicine. He has broad experience in treating complex heart conditions. His expertise includes arrhythmias, atrial septal defect (ASD), atrial fibrillation, AVRT, AVNRT, bradycardia, heart failure, coronary artery disease, and structural heart diseases.
He is skilled in advanced interventional procedures. These include ASD, PDA, and VSD closure, EPS-ablation, ICD-CRT-D implantation, and percutaneous coronary and peripheral interventions. Dr. Dogdus worked at Karaman State Hospital and Uşak University Training and Research Hospital cardiology clinics from 2017 to 2022.
He is an active member of the Turkish Society of Cardiology, the European Society of Cardiology, and the Cardiovascular Academy. He also holds board and working group positions in several national and international cardiology organizations.
Dr. Humayun Kakar is a cardiologist. He earned his medical degree from Eskişehir Osmangazi University between 2007 and 2014. He completed his cardiology residency at İzmir Dokuz Eylül University from 2015 to 2020. In 2024, he received advanced training in heart failure at the University of Zurich in Switzerland.
He has worked at İzmir Ekonomi Üniversitesi Medical Point Hospital and Konya Cihanbeyli State Hospital. He also took part in advanced heart failure education at the University of Zurich.
Dr. Kakar is a member of several professional organizations. These include the European Society of Cardiology, Turkish Society of Cardiology, Heart Failure Association, American College of Cardiology, Cardiovascular Academy Association, and the European Association of Percutaneous Cardiovascular Interventions (EAPCI).
Professor Dr. Kurt Rasche is a German pulmonologist with more than 40 years of clinical experience. He is Chief of Pulmonology at Helios University Hospital Wuppertal. He leads the departments of pulmonology, sleep medicine, and ventilation therapy. He also heads the certified Lung Cancer Center.
He is certified in internal medicine, pulmonology, allergology, sleep medicine, and intensive care. His clinical work focuses on diagnosing and treating chronic lung diseases, lung cancer, and sleep-related breathing disorders. He works closely with specialists from other fields to provide coordinated care.
Dr. Ela Simay Zengin is a neurologist. She completed her medical training at Dokuz Eylül University, Başkent University, and Acıbadem University. She has worked at Bitlis Tatvan, Sirnak, and Cizre State Hospitals.
Dr. Zengin treats Alzheimer’s disease, epilepsy, migraines, multiple sclerosis, Parkinson’s disease, and stroke. She uses advanced treatments, including apomorphine pump therapy, botulinum toxin injections, and migraine vaccines.
She is a member of the Turkish Neurology Association, American Academy of Neurology, European Academy of Neurology, and International Parkinson and Movement Disorder Society.
Dr. Rattalerk Arunakul is a specialist in Endoscopic Spine Surgery, Minimally Invasive Spine Surgery, and Adult Reconstructive Spine Surgery. He received his Doctor of Medicine from Chulalongkorn Hospital in 1999. He completed his orthopedic surgery training at Srinakarin Hospital, Khon Kaen University in 2004.
Dr. Arunakul has worked in research and clinical roles at top institutions. These include the University of California Irvine, Rady Children’s Hospital at UC San Diego, Cedars-Sinai Medical Center, and Yale School of Medicine. He has completed international training and fellowships in both adult and pediatric spinal care.
Dr. Son Dong Wan, MD, PhD, is the Chief of Urology at Naeun Hospital. He specializes in urologic oncology, urinary incontinence, sexual dysfunction, and laser prostate surgery. He performs robotic and laparoscopic surgery for cancers of the prostate, bladder, ureter, and kidney. He also treats ureteropelvic junction (UPJ) obstruction.
He earned his PhD from Pusan National University. He completed his internship and residency at Pusan National University Hospital. He is a former Chief at Wallace Memorial Baptist Hospital. He served as a Professor at the Catholic University College of Medicine. He was a Clinical Fellow at Seoul National University Bundang Hospital. He was a Visiting Professor at the University of California, San Diego (UCSD). He completed training in urinary incontinence surgery at the University of Liège.
Awards include the Excellent Paper Award (2007) and the Academic Achievement Award (2014) from the Korean Continence Society. He also received the Best Poster Award from the European Association of Urology (2013).
Op. Dr. Ayhan Kara is a neurosurgeon with over 25 years in spine surgery. He specializes in minimally invasive and endoscopic procedures on the cervical and lumbar spine. His work includes anterior discectomy, nucleoplasty, and spinal instrumentation and fixation. He graduated from Dicle University. He completed neurosurgery training at Kartal Training and Research Hospital. He also finished an internship at Helios Clinic in Hamburg.
He has performed hundreds of advanced spine operations. He aims for fast recovery and shorter rehab. He stays active in courses and conferences. He uses current, individualized methods. Interests: minimally invasive and endoscopic spine surgery (cervical, lumbar), anterior lumbar discectomy, nucleoplasty, spinal instrumentation and fixation.
Experience
2002-present | Attached to the Department of Gamma Radiosurgery and Functional Neurosurgery of Ruber International Hospital.
2002-2007 | Assistant, Department of Radiation Oncology, Ruber International Hospital.
2002| Medical Affairs Manager Medical Department Janssen-Cilag, SA Madrid
Qualification
2012|Doctor of Medicine and Surgery Madrid. Department of Surgery, Autonomous University of Madrid. Spain
2001 | Specialist in Radiation Oncology at the Gregorio Marañón University Hospital in Madrid. Training completed at the Gustave-Roussy Institute in Paris in 2000.
1995 | Graduate of the Faculty of Medicine and Surgery, Complutense University of Madrid. Spain.
2016-present | Member of the Ruber International Hospital Gamma Knife Radiosurgery Team, International Gamma Knife Consortium: Led by the Pittsburgh Hospital.
1999-2000| Project Manager: "Protocol for Pamidronate Treatment of Breast Cancer Patients with Predominantly Lytic Bone Metastases"
1999 | GICOR Study: "Incidence of Anemia in Patients Receiving Radiation Therapy"
1999 | GICOR study: "Androgen deprivation protocol associated with radiation therapy for localized high-risk prostate cancer"
1997-2001|Participant (collaborator) in the research project (FIS FELLOWSHIP): "Multimodal fusion of medical images in oncology" at HGU Gregorio Marañon. Project leader: Dr. Desco Menéndez.
Teaching :
2018-present|Professor of the International Master of Radiosurgery of the Central Nervous System at the Complutense University of Madrid.
2020-present|Professor at the School of Radiosurgery of the Spanish Society of Neurosurgeons.
2017-2019|Professor of the Master of Radiosurgery and Clinical Stereotactic Radiotherapy of the Spanish Society of Radiation Oncology.
2017 - 2022| Member of the Dissertation Committee in Radiosurgery three times at the Autonomous University of Madrid and the Complutense University of Madrid.
2011-2012|Professor, International Master's Program in Advanced Technological Applications in Radiation Oncology, 3rd ed.
2001-2002|Associate Professor of Dentistry at the Alfonso X El Sabio University.
1998 - 2001|Professor of the secondary school I.E. Technical and vocational school of health K.A.M. (Radiation oncology technicians and archival technicians).
Publications
2022|Stereotactic radiosurgery of obsessive-compulsive disorders. Chapter. 25. Book: Intracranial stereotactic radiosurgery. ed. 2022. Pages: 251-256.
2022|Active monitoring and stereotactic radiosurgery provide a low risk of symptoms associated with incident frontobasal meningioma, but stereotactic radiosurgery provides better radiological control – a subanalysis of the IMPASSE trial. Cancers 2022; 14(5).1300. https://doi.org/10.3390/cancers14164047
2022|Stereotactic radiosurgery for Kuss grade IV vestibular schwannoma: a multi-institutional study. Journal of Neurosurgery. 2022 Jun 3; DOI: 10.3171/2022.4.JNS22203.
2022|Stereotactic radiosurgery for Rathke's cleft cyst: an international multicenter study. J Neurosurg 137: 1041–1046, 2022. DOI: 10.3171/2021.12.JNS212108.
2021|Surgery and radiosurgery in autism: a retrospective study on 10 patients. Stereotactic Function Neurosurgery. 2021;99(6):474–483. 15.
Presentations
2019| "Other indications in malignant tumor pathology" Cranial Radiosurgery Conference. Valencia 2019.
2018| Gamma Knife Radiosurgery: Concept, Equipment and Treatment Description I Scientific Conference on Gamma Knife Radiosurgery, Madrid, 2018
2018|Radiotherapy and protons in children. XX meeting of the SENEC Working Group on Neuro-Oncology:. Madrid.
2015| "Visualization monitoring of response and complications of brain treatment". XVIII National Congress of S.E.O.R. Valencia
2015 | Gamma Knife Radiosurgery in the Treatment of Refractory Epilepsy Associated with Nodular Heterotopia: Long-Term Safety and Efficacy. Congress of the Spanish Society of Neurology.
Communities it belongs to:
-SER, Spanish Society of Radiosurgery (she currently serves on the Board of Directors as Treasurer)
-SEOR, Spanish Society of Oncological Radiotherapy: Working Groups "Brain Tumors (NEUROONCOR)" and "Radiation Oncology Activities in the Private Sector"
-SSRI, International Society for Stereotactic Radiosurgery
- Member of the Oncology Group of the Spanish Society of Neurosurgery (SENEC).
Dr. Nuria Martínez Moreno , working in tandem with Dr. Roberto Martínez Álvarez, combines expert oncology knowledge and high-precision radiosurgery technology , providing patients with the most advanced and effective treatment in Spain.
Prof. Dr. Şevki Erdem is an Orthopedics and Traumatology specialist with expertise in spine surgery, deformity correction, and complex spinal disorders. He earned his medical degree from Atatürk University in Erzurum. He completed specialty training in Orthopedics and Traumatology at Erciyes University. Over several decades in leading Turkish hospitals, he has treated thousands of patients with spinal conditions. He has also trained future spine surgeons. In 2013, the Turkish Ministry of Health named him Doctor of the Year.
He currently practices at Central Hospital in Istanbul. He provides advanced, patient-centered orthopedic care for scoliosis, kyphosis, spondylolisthesis, spinal stenosis, fractures, tumors, infections, and spinal deformities. He also performs joint replacement.
Professor İlhan Mavioğlu is a cardiovascular surgeon and leads the Cardiovascular Surgery Outpatient Clinic. His focus areas include total arterial revascularization. He performs minimally invasive off-pump anaortic CABG (MACAB) and MIDCAB. He also performs awake carotid surgery. He manages peripheral vascular and endovascular procedures, including chimney TEVAR, EVAR, BEVAR, FEVAR, PEVAR, and CERAB, and handles related complications.
Education and accreditation: MD, Hacettepe University (1990). Cardiovascular surgery specialization, Dışkapı Yıldırım Beyazıt Training and Research Hospital (1996). Associate Professor, Mersin University (2003). Professor, Düzce University (2012). Certificates include endovascular training (2011) and Robotic Mitral Valve Repair (2014).
Publications include J Clin Med (2023), Innovations (2023), J Card Surg (2022), and Asian Cardiovasc Thorac Ann (2019). He also authored a 12-year infrarenal AAA mortality report (1999). He has been a member of national and European cardiovascular and vascular societies since 1992.