Skip to Main Content

Current Residents




  • Jacky Yeung

    Resident Neurosurgery

    MD, Michigan State University College of Human Medicin, 2013; BSc (Hon), University of British Columbia, 2008

    Dr. Jacky Yeung started residency in neurosurgery in 2013 after completing undergraduate studies at University of British Columbia in Honors Physiology and his MD degree at Michigan State University College of Human Medicine. He is a member of the American Association of Neurological Surgeons and is elected to the AANS Young Neurosurgeons Committee in 2016. He has special interests in cranial and spinal neoplasms with emphasis on mechanisms of tumor-escape from immunosurveillance. He also has interests in developing novel imaging to help differentiate radiation necrosis from tumor recurrence for intracranial metastases after radio-surgery.

    Dr. Yeung obtained in-depth experience in glioma immunology as a Doris Duke research fellow. He identified the presence of specific antigens in childhood and adult ependymomas, which led to a NIH-funded clinical trial utilizing a peptide vaccine (#NCT01795313). He focused on mechanisms of immune escape in adult gliomas, specifically the relationship between LOH of HLA Class I and decreased survival in GBM patients. During junior residency years, his research focus was on studying advanced MR imaging characteristics of delayed radiation effects from radiosurgery in brain metastases. During his research years (2016-2018), he focused on identifying novel immune check-point molecules under the mentorship of Lieping Chen, MD, PhD and their specific applications to brain tumors. He was the recipient of the prestigious AANS Tumor Section Research Award. 

    He is an active member of the peer-selected AANS Young Neurosurgeons Committee and the Neuropoint Alliance. He is an active member in the Quality Improvement Committee in Neurosurgical Care at Yale-New Haven Hospital. 



  • Abhijeet Gummadavelli

    Hospital Resident

    BA, Johns Hopkins University, 2010; MD, Yale University School of Medicine, 2015
    Research Interests
    • Neurosciences

    Abhijeet grew up in Cincinnati, and his education includes bachelors in Neuroscience from Johns Hopkins and an MD from Yale. His selected accomplishments include: IBM Thomas J Watson Scholarship, Goldwater Scholarship, HHMI Fellowship, and American Epilepsy Society Young Investigator Award, and Dennis D. Spencer Award in Academic Achievement. His clinical and research interests include functional/epilepsy neurosurgery and novel neuromodulatory therapeutic approaches, respectively. Since 2010, he has worked in the lab of Dr. Hal Blumenfeld investigating the novel therapies to impaired consciousness in epilepsy. Outside of work, he enjoys tennis, tinkering, and travel. 


  • Christopher Hong

    Hospital Resident

    BA, Harvard University, 2010; MD, The Ohio State University, 2016

    Dr. Hong is a resident in neurological surgery at Yale-New Haven Hospital. He received his undergraduate degree from Harvard University in 2010 and his MD from The Ohio State University School of Medicine in 2016, during which he performed additional neuro-oncology research at the National Institutes of Health in Bethesda, MD. His current interests include neurosurgical oncology, particularly within the skull base.

  • Adam Joseph Kundishora

    Hospital Resident; Co-Chair of Educational Committee, Neurosurgery

    BA, Harvard University, 2008; MD, Yale School of Medicine, 2016
    Research Interests
    • Arnold-Chiari Malformation
    • Hydrocephalus
    • Neurosurgery
    • Scoliosis

    Dr. Kundishora is a resident in neurological surgery at Yale-New Haven Hospital. He received his undergraduate degree from Harvard University in 2008. He was a Michael C. Rockefeller fellow and the co-founder of Vecna Cares Charitable trust (Nairobi, Kenya) which focused on leveraging cellular phone and mobile computing technology to enhance health delivery infrastructure. Dr. Kundishora received his MD (cum laude) from Yale School of medicine where he was awarded the Parker Prize (awarded for best demonstrating the qualifications of a successful physician) and the Ferris Prize (awarded for an outstanding MD thesis). His current interests include pediatric neurosurgery, defining the genetic basis of congenital neurosurgical diseases, and pediatric/adult spinal deformity. 


  • Stephanie Robert

    Hospital Resident; Research Committee, Neurosurgery

    MD/PhD, University of Alabama Birmingham, 2017; MSc, University of Alabama Birmingham, 2012; BSc (Hon), Louisiana State University, 2008
    Research Interests
    • Astrocytes
    • Brain Neoplasms
    • Spinal Cord Neoplasms

    Dr. Robert is a resident in neurological surgery at Yale-New Haven Hospital. She received her undergraduate degree from Louisiana State University in 2008, with a focus in chemistry. Dr. Robert received her MD (2017) and PhD (2015) from University of Alabama at Birmingham School of Medicine with a concentration on neuroscience. For her graduate degree, she studied the role of glutamate in the peritumoral environment. Her current interests include cranial and spine oncology, defining the underlying mechanisms of tumor development and growth. 

  • Nanthiya Sujijantarat

    Staff Affiliate - YNHH

    MD, Saint Luis University School of Medicine

    Dr. Sujijantarat is a neurosurgery resident at Yale-New Haven hospital. She received her undergraduate degree from the University of Tulsa where she graduated Summa Cum Laude as a Jess Chouteau Outstanding Senior. Dr. Sujijantarat received her MD from Saint Louis University where she received Alpha Omega Alpha and American Medical Women's Association Glasgow-Rubin Achievement Citation. She is the founder and president of Sujijantarat Animal Sanctuary (SAS) in Kanchanaburi, Thailand. Her current interests include vascular neurosurgery, cost effectiveness research, and business in medicine.


  • Aladine Elsamadicy

    Hospital Resident

    BE, Vanderbilt University, 2013; MD, Duke University School of Medicine, 2018

    Dr. Elsamadicy is a resident in neurological surgery at Yale-New Haven hospital. He received is undergraduate degree in Biomedical Engineering from Vanderbilt University in 2013. Through his work focused on underserved populations and mentorship, Dr. Elsamadicy was awarded Vanderbilt's "Top 10 Outstanding Seniors". Dr. Elsamadicy received his MD from Duke University School of Medicine where he was awarded the Julian Abele Student of the Year for Duke School of Medicine Award and was a Feagin Leadership Scholar. Along with his leadership, Dr. Elsamadicy spent 2 researching in the Duke Brain Tumor Immunotherapy Program and currently continues performing Clinical-Outcomes research, resulting in numerous peer-reviewed publications. 


  • Joseph Antonios

    Hospital Resident

    BS (Hon), University of California, Los Angeles; MD/PhD, University of California, Los Angeles

    Joseph is currently a neurosurgical resident at Yale New Haven Hospital. He completed his graduate and medical training through the UCLA-Caltech Medical Scientist Training Program. Over the course of his thesis studies, Joseph successfully published in PNAS, Neuro-Oncology, and Journal of Clinical Investigation, describing the role of adaptive immune resistance in the GBM tumor microenvironment and developing immunotherapeutic strategies for GBM treatment. Most recently, he was the recipient of the Journal of Neuro-Oncology Award at the Congress of Neurological Surgeons for his studies on vaccine therapy. Joseph is currently focused on bringing these therapeutic interventions to the clinic, to directly impact GBM patient treatment.

  • Ulas Cikla

    Hospital Resident

    Ulas Cikla received his MD degree from Istanbul University School of Medicine (Istanbul, Turkey) following by  neurological surgery residency in  Izmir Tepecik Teaching and Research Hospital (Izmir, Turkey) and thereafter served as an attending neurosurgeon in  Turkey for 2 years. In June 2012, he became a research fellow in the Baskaya laboratory at the University of Wisconsin (Madison).  In August of 2012 he was invited and then began work in the Cengiz and Ferrazzano Laboratories (Department of Pediatrics) concurrently with the Baskaya Laboratory. He was appointed as a Research Specialist in 2013 and then as an Assistant Scientist and Laboratory Manager after 2016 in the same univerisity. In May 2019, he started to work as a Associate Scientist in Yale University. 

    Dr. Cikla has an extensive background in animal models of brain injury, including middle cerebral artery occlusion and hypoxia ischemia models. He has been a member of Society of Neuroscience since 2016, and has published more than 70 scientific manuscripts and book chapters. He has a deep commitment to education, including  hands-on teaching, lecturing, mentoring and serving as a faculty instructor in more than 25 national and international neuroanatomy and neurosurgery courses. His neuroanatomy research focuses on characterizing variations in human cerebrovascular and CNS anatomy, as well as on identifying safer and more efficient surgical access routes to deep brain regions.

    Selected manuscripts:

    A stepwise illustration of the retrosigmoid approach for resection of a cerebellopontine angle meningioma                                              (Neurosurgical Focus) Cikla U, Kujoth GC, Baskaya MK

    How I do it: Treatment of blood blister-like aneurysms of the supraclinoid internal carotid artery by extracranial to intracranial bypass and trapping  (Acta Neurochir Wien) Cikla U, Baggott C, Baskaya MK

    Gross total resection of large cervical intramedullary ependymoma: demonstration of microsurgical techniques                                       (Turkish Neurosurgery) Cikla U, Baggott C, Baskaya M

    Familial perimesencephalic subarachnoid hemorrhage: Association or coincidence? Case report (Journal of Medical Case Reports) Cikla U, Aagaard Kienitz B, Niemann DB, Turski PA, Başkaya MK

    Ruptured posterior communicating artery aneurysm associated with Aarskog syndrome (Neurologia Medico-chirurgica) Cikla U, Giampietro PF, Sadighi A, Baskaya MK

    Fatal ruptured blood blister-like aneurysms of middle cerebral artery associated with Ehlers-Danlos syndrome type VIII (periodontitis type) (Journal of Neurological Surgery-Reports) Cikla U, Sadighi A, Bauer A, Baskaya MK

    Microsurgical anatomy of the denticulate ligaments and their relationship with the axilla of the spinal nerve root (Clinical Anatomy)

    Blood blister-like aneurysms of the intracranial arteries. (Contemporary Neurosurgery) Cikla U, Baggot C, Ahmed A, Niemann D, Baskaya MK

    Treatment of moyamoya disease with combined STA-MCA bypass and EDAS: Illustration of microsurgical technique                                      (Turkish Neurosurgery) Li Y, Cikla U, Baggot C, Tevfik Yılmaz MD; Clifford Chao MS Baskaya MK

    Subparietal and parietooccipital sulci: An anatomical study (Clinical Anatomy)

    Intraoperative assessment of the posterior communicating artery and its branches by indocyanine-green videoangiography (Surgical Neurology International)

    Treatment of supraclinoid internal carotid artery iatrogenic pseudoaneurym with extracranial-to-intracranial bypass and trapping: demonstration of technique with video presentation (Turkish Neurosurgery) Cıkla U, Li Y, Durán SH, Kozan A, Başkaya MK

    Microsurgical anatomy of the posterior median septum of the human spinal cord    (Clinical Anatomy)

    Double Barrel bypass (STA-MCA) and trapping of a pseudoaneurysm of the internal carotid artery arrest                                          (Neurosurgical Focus) Cıkla U, Uluc K, Baskaya MK

    Microsurgical clipping of a giant vertebrobasilar junction aneurysm under hypothermic circulatory arrest                                        (Neurosurgical Focus) Cıkla U, Uluc K, Baskaya MK

    Gliablastoma multiforme in Klippel-Trenaunay-Weber syndrome. Case report (Journal of Medical Case Reports) Yilmaz T, Cıkla U, Maternowski A, Baskaya MK

    Osteopetrosis and Chiari type I malformation: a rare association (Journal of Surgical Case Reports) Ekici MA, Cıkla U, Bauer" Bauer A, Başkaya MK

    Clip reconstruction of giant distal anterior cerebral artery aneurysm: 3-D Operative Video (Neurosurgery) Cikla U, Yılmaz T, Li Y, Başkaya M

    Microsurgical treatment of Thalamic cavernous malformation: 3 Dimensional operative video (Neurosurgery) Yılmaz T, Cikla U, Başkaya M

    Hippocampal ERα signaling is required for TrkB mediated neuroprotection in female neonatal mice after hypoxic ischemic encephalopathy (eNeuro) Cikla U, Chanana V, Kintner D, Udho E, Eickhoff J, Sun W, Marquez S, Covert L, Otles A Shaphiro R, Ferrazzano P, Vemuganti R, Levine J, Cengiz P

    Supracerebellar transtentorial approach to the tentorial incisura and beyond (Neurosurgical Focus) Swanson K, Cikla U, Uluc K, Baskaya MK

    Suppression of microglia activation after hypoxia-ischemia results in age-dependent improvements in neurologic injury                            (Journal of Neuroimmunology) Cikla U, Chanana V, Kintner D, Convert L, Convert T, Waldman A, Rowley P, Cengiz P, Ferrazzano P

    The sulci of the inferior surface of the temporal lobe: An anatomical study (Clinical Anatomy) Cikla U, Menekse G, Keles A, Quraishi A, Liu C, Neves G, Shahriar S, Baskaya MK

    Microsurgical resection of tumors of the lateral and third ventricles: operative corridors for difficult-to-reach lesions                                       (Journal of Neuro-Oncology) Cikla U, Swanson KI, Tumturk F, Uluc K, Keser N, Cohen-Gadol A, Baskaya MK

    End-to-side and end-to-end double In situ bypass with submilimeter M4 branches for treatment of ruptured mycotic aneurysm: 3-Dimensional operative video (Operative Neurosurgery) Turan Y, Cikla U, Baskaya MK        

    Transsylvian resection of dominant insular gliomas – demonstration of microsurgical techniques in pure insular versus temporo-insular gliomas: 3D operative video (Operative Neurosurgery) Cikla U, Swanson KI, Baskaya MK

    Emergency resection of brain stem cavernous malformations (Journal of Neurosurgery) Tumturk A, Li Y, Turan Y, Cikla U, Iskandar B, Baskaya MK

    Minimizing retraction by pia-arachnoidal 10-0 sutures in intrasulcal dissection (Operative Neurosurgery)    Uluc K , Cikla U, Morkan BD, Sirin A, Ahmed AS, Swanson K, Baskaya MK

    Overcoming end-to-end vessel mismatch during superficial temporal artery-radial artery-M2 interposition grafting for cerebral ischemia: Tapering technique. (World Neurosurgery) Cikla U, Mukherjee D, Baskaya MK

    Hypertrophic olivary degeneration: Neurosurgical perspective and literature review.   (World Neurosurgery) Onen MR, Moore K, Cikla U, Ucer M, Schmidt B, Field AS, Baskaya MK.

    The tonsillouvular fissure approach: access to dorsal and lateral aspects of the fourth ventricle. (World Neurosurgery) Aydin I, Hanalioglu S, Peker HO, Turan Y, Kina H, Cikla U, Baskaya MK.

    A novel low-cost, reusable, high fidelity neurosurgical training simulator for cerebrovascular bypass surgery                                          (Journal of Neurosurgery)    Cikla U, Sahin B, Hanalioglu S, Ahmed AS, Nieman D, Baskaya MK.

    Attenuation of Retinal Vascular Development in Neonatal Mice Subjected to Hypoxic-Ischemic Encephalopathy                                          (Nature / Scientific reports) Zaitoun IS, Cikla U , Zafer D, ,Udho E, Almomani R, Suscha A, Cengiz P, Sorenson CM, Sheibani N

    Revascularization for Cerebral Ischemia: Step by Step Demonstration of Bonnet Bypass (Operative Neurosurgery)    Cikla U, Hamilton K, Ozaydin B,  Baskaya MK

  • Layton Lamsam

    Hospital Resident

    BS, Stanford University, 2014; MD, Stanford University School of Medicine, 2019
    Research Interests
    • Epilepsy
    • Neurosurgery
    • Observational Study

    Layton is a resident in the Department of Neurosurgery at Yale University School of Medicine. He completed his undergraduate and medical degrees at Stanford University. While there, he developed skills in statistical programming and learned methods for causal inference on observational data, which he applied in his publications on neurosurgical outcomes. He also has experience in the analysis of scRNA-Seq data for human brain tumors. Layton is currently pursuing research interests in epilepsy and functional neurosurgery.