Rafael De Oliveira Sillero, MD $$

Pediatric Neurosurgeon

Assistant Professor at UT Southwestern Medical Center

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UT Southwestern Pediatric Group

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Rafael de Oliveira Sillero, M.D., is a Pediatric Neurosurgeon at Children’s Health℠ and an Assistant Professor in the Department of Neurological Surgery at UT Southwestern. 

I saw how important it is for families to have access to specialists who understand kids and know how to tailor treatment to them.
Dr. Sillero

He specializes in treating cerebrovascular diseases including aneurysms, malformed arteries and stroke. He has a particular interest in moyamoya angiopathy and in treatment using revascularization. 

Dr. Sillero’s dual expertise in neurosurgery and interventional neuroradiology – he’s among a small handful of physicians who have experience applying techniques like endovascular embolization to children – expands our ability to help kids overcome stroke and many other conditions.

Dr. Sillero started his medical career in Brazil, earning his medical degree from the Petropolis School of Medicine and completing his residency at the Sao Paulo School of Medicine. He came to UT Southwestern to complete fellowships in pediatric neurosurgery and neuroradiology. He joined Children's Health in 2019.

Dr. Sillero chose to practice at Children's Health because of our collaborative work environment and our focus on compassionate care. 

“I saw how important it is for families to have access to specialists who understand kids and know how to tailor treatment to them,” Dr. Sillero says. “That made me decide to shift my career.”


Education and Training

Medical School

Petropolis Medical School (2001)


State University of Sao Paulo - UNESP (2006), Neurosurgery


UT Southwestern Medical Center (2019), Neuroendovascular Surgery
UT Southwestern - Children's Medical Center (2018), Pediatric Neurological Surgery
UT Southwestern Medical Center (2017), Cerebrovascular & Skull Base Surgery
University Medical Centre Ljubljana (2009), Neurosurgery

Board Certification

Brazilian Society of Neurosurgery

  • Research Interests

    • Intracranial Aneurysms
  • Publications

    • Laser Interstitial Thermal Therapy for Cerebral Cavernous Malformations: A Systematic Review of Indications, Safety, and Outcomes. Ogasawara C, Watanabe G, Young K, Kwon R, Conching A, Palmisciano P, Kan P, de Oliveira Sillero R. World Neurosurg. 2022 Oct;166:279-287.e1. doi: 10.1016/j.wneu.2022.06.052. Epub 2022 Jun 26.
    • Postoperative Transfusion Guidelines in Aneurysmal Cerebral Subarachnoid Hemorrhage: A Systematic Review and Critical Summary of Available Evidence. Mofor P, Oduguwa E, Tao J, Barrie U, Kenfack YJ, Montgomery E, Edukugho D, Rail B, Hicks WH, Pernik MN, Adeyemo E, Caruso J, El Ahmadieh TY, Bagley CA, De Oliveira Sillero R, Aoun SG. World Neurosurg. 2022 Feb;158:234-243.e5. doi: 10.1016/j.wneu.2021.12.007. Epub 2021 Dec 7.
    • Infectious Pseudoaneurysm of the Internal Carotid Artery in a Child Secondary to Parapharyngeal Abscess. Christian Davidson, Cheryl Holihan, Rafael de Oliveira Sillero, Kenneth Lee, Ron B Mitchell, Gopi Shah. Ear Nose Throat J. 2023 Jan;102(1):NP31-NP34. doi: 10.1177/0145561320984582. Epub 2021 Jan 4.
  • Professional Activities

    • American Association of Neurological Surgeons
    • Brazilian Society of Neurosurgery
    • World Federation of Interventional and Therapeutic Neuroradiology

Where I Provide Care: