A. Samy Youssef, MD, PhD, MSc, FAANS
Professor of Clinical Neurosurgery, Neurosurgery

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Internship:
  • University of South Florida College of Medicine Program (2003)
Residency:
  • University of South Florida College of Medicine Program, Chief Resident, Neurological Surgery (2008)
Fellowships:
  • Drexel University College of Medicine/Hahnemann University Hospital Program, Neurological Surgery (1998)
  • University Hospital/University of Cincinnati College of Medicine Program, Neurological Surgery (2002)
  • University of South Florida College of Medicine Program, Neurological Surgery (2003)
Languages: English, French, Arabic
Department: Neurosurgery

Professional Titles

  • Professor of Clinical Neurosurgery, Neurosurgery
  • Professor of Clinical Otolaryngology
  • Director of Complex Cranial and Skull Base Surgery
  • Program Director of Skull Base Surgery Fellowship
  • Vice Chair of Education

Teaching

  • Professor (2016)
    School of Medicine, Neurosurgery
    Complex brain tumors, Skull base tumors, Microsurgical techniques ,Minimally invasive endoscopic cranial surgery
  • Program Director: Skull base Fellowship (2015)
    School of Medicine, Neurosurgery
  • Director of Skull Base Surgery (2014)
    School of Medicine, Neurosurgery
  • Professor (2016)
    School of Medicine, Otolaryngology

Publications

  • Youssef AS, Yang A, Getz AE, Mizuho I, Labib M. Clival Chordoma: Endoscopic Bilateral Transmaxillary Approach. J Neurol Surg B Skull Base. 2019 Dec;80(Suppl 4):S371. PubMed PMID: 31750067
  • Vasquez C, Yang A, Youssef AS. Foramen Magnum Meningioma: Far Lateral Approach. J Neurol Surg B Skull Base. 2019 Dec;80(Suppl 4):S363-S364. PubMed PMID: 31750063
  • Labib MA, Borba Moreira L, Zhao X, Gandhi S, Cavallo C, Tayebi Meybodi A, Youssef AS, Little AS, Nakaji P, Preul MC, Lawton MT. The side door and front door to the upper retroclival region: a comparative analysis of the open pretemporal and the endoscopic endonasal transcavernous approaches. J Neurosurg. 2019 Nov 8;:1-13. [Epub ahead of print] PubMed PMID: 31703195
  • Vasquez CA, Downes A, Kleinschmidt-DeMasters BK, Youssef AS. Functioning Pituitary Adenoma with Xanthogranulomatous Features: Review of Literature and Case Report. J Neurol Surg B Skull Base. 2019 Oct;80(5):449-457. PubMed PMID: 31534885
  • Aref M, Kunigelis K, Cass SP, Youssef AS. Retrosigmoid Approach for Vestibular Schwannoma. J Neurol Surg B Skull Base. 2019 Jun;80(Suppl 3):S271. PubMed PMID: 31143585
  • Ung TH, Yang A, Aref M, Folzenlogen Z, Ramakrishnan V, Youssef AS. Preservation of olfaction in anterior midline skull base meningiomas: a comprehensive approach. Acta Neurochir (Wien). 2019 Apr;161(4):729-735. PubMed PMID: 30715605
  • Farrell NF, Kingdom TT, Getz AE, Lillehei KO, Youssef AS, Ramakrishnan VR. Development of Chronic Sphenoid Sinusitis After Sellar Reconstruction with Medpor Porous Polyethylene Implant. World Neurosurg. 2019 Mar;123:e781-e786. PubMed PMID: 30579017
  • Ung TH, Ney DE, Damek D, Rusthoven CG, Youssef AS, Lillehei KO, Ormond DR. The Neurologic Assessment in Neuro-Oncology (NANO) Scale as an Assessment Tool for Survival in Patients With Primary Glioblastoma. Neurosurgery. 2019 Mar 1;84(3):687-695. PubMed PMID: 29618103
  • Yang A, Aref M, Youssef AS. Tuberculum Meningioma: Orbitopterional Approach. J Neurol Surg B Skull Base. 2018 Feb;79(2):S219-S220. PubMed PMID: 29404259
  • Freeman JL, Sampath R, Quattlebaum SC, Casey MA, Folzenlogen ZA, Ramakrishnan VR, Youssef AS. Expanding the endoscopic transpterygoid corridor to the petroclival region: anatomical study and volumetric comparative analysis. J Neurosurg. 2018 Jun;128(6):1855-1864. PubMed PMID: 28731399
  • Oushy S, Sillau SH, Ney DE, Damek DM, Youssef AS, Lillehei KO, Ormond DR. New-onset seizure during and after brain tumor excision: a risk assessment analysis. J Neurosurg. 2018 Jun;128(6):1713-1718. PubMed PMID: 28753117
  • Yang A, Aref M, Youssef AS. Tuberculum Meningioma: Orbitopterional Approach. J Neurol Surg B Skull Base. 2018 Feb;79(2):S219-S220. PubMed PMID: 29404259
  • Vasquez CA, Thompson JA, Youssef AS. The Tentorial Bridge to Deep Skull Base Exposure: Anatomic Morphometric Study. World Neurosurg. 2018 Jun;114:e588-e596. PubMed PMID: 29551719
  • Ung TH, Ney DE, Damek D, Rusthoven CG, Youssef AS, Lillehei KO, Ormond DR. The Neurologic Assessment in Neuro-Oncology (NANO) Scale as an Assessment Tool for Survival in Patients With Primary Glioblastoma. Neurosurgery. 2018 Mar 30. [Epub ahead of print] PubMed PMID: 29618103
  • Yang A, Folzenlogen Z, Youssef AS. Minimally invasive endoscopic-assisted approaches to the posterior fossa. J Neurosurg Sci. 2018 Dec;62(6):658-666. PubMed PMID: 29790722
  • Aref MH, Youssef AS. Training the skull base surgeon of the future: a comprehensive approach. J Neurosurg Sci. 2018 Dec;62(6):627-635. PubMed PMID: 29790723
  • Aref M, Kunigelis KE, Yang A, Subramanian PS, Ramakrishnan VR, Youssef AS. The Effect of Preoperative Direct Ligation of Ethmoidal Arteries on the Perioperative Outcomes of Large Anterior Skull Base Meningiomas Surgery: A Clinical Study. World Neurosurg. 2018 Dec;120:e776-e782. PubMed PMID: 30196172
  • Kunigelis KE, Craig D, Yang A, Gubbels S, Youssef AS. Presigmoid Approach to Dumbbell Trigeminal Schwannoma. J Neurol Surg B Skull Base. 2018 Dec;79(Suppl 5):S391-S392. PubMed PMID: 30456036
  • Yang A, Kunigelis K, Youssef AS. Retrosigmoid Approach to the Posterior Fossa Trigeminal Schwannoma. J Neurol Surg B Skull Base. 2018 Dec;79(Suppl 5):S393-S394. PubMed PMID: 30456037
  • Kunigelis K, Yang A, Youssef AS. Endoscopic Assisted Retrosigmoid Approach for Cerebellopontine Angle Epidermoid Tumor. J Neurol Surg B Skull Base. 2018 Dec;79(Suppl 5):S413-S414. PubMed PMID: 30456046
  • Farrell NF, Kingdom TK, Getz AE, Lillehei KO, Youssef AS, Ramakrishnan VR. Development of Chronic Sphenoid Sinusitis After Sellar Reconstruction with Medpor Porous Polyethylene Implant. World Neurosurg. 2018 Dec 19. [Epub ahead of print] PubMed PMID: 30579017
  • Oushy S, Sillau SH, Ney DE, Damek DM, Youssef AS, Lillehei KO, Ormond DR. New-onset seizure during and after brain tumor excision: a risk assessment analysis. J Neurosurg. 2017 Jul 28;:1-6. [Epub ahead of print] PubMed PMID: 28753117
  • Freeman JL, Sampath R, Quattlebaum SC, Casey MA, Folzenlogen ZA, Ramakrishnan VR, Youssef AS. Expanding the endoscopic transpterygoid corridor to the petroclival region: anatomical study and volumetric comparative analysis. J Neurosurg. 2017 Jul 21;:1-10. [Epub ahead of print] PubMed PMID: 28731399
  • Vasquez CA, Casey M, Folzenlogen Z, Ormond DR, Lillehei K, Youssef AS. Third Ventricular Cerebrospinal Fluid Cysts of Thalamic Origin: Review of Embryologic Origin, Presentation, and Management Strategies with a Case Series. World Neurosurg. 2017 Jul;103:210-219. PubMed PMID: 28391023
  • Freeman JL, Davern MS, Oushy S, Sillau S, Ormond DR, Youssef AS, Lillehei KO. Spheno-Orbital Meningiomas: A 16-Year Surgical Experience. World Neurosurg. 2017 Mar;99:369-380. PubMed PMID: 28017748
  • Freeman JL, Davern MS, Oushy S, Sillau S, Ormond DR, Youssef AS, Lillehei KO. Spheno-Orbital Meningiomas: A 16-Year Surgical Experience. World Neurosurg. 2016 Dec 22. [Epub ahead of print] PubMed PMID: 28017748
  • Youssef AS, Sampath R, Freeman JL, Mattingly JK, Ramakrishnan VR. Unilateral endonasal transcribriform approach with septal transposition for olfactory groove meningioma: can olfaction be preserved?. Acta Neurochir (Wien). 2016 Oct;158(10):1965-72. PubMed PMID: 27562683
  • Freeman JL, Sampath R, Casey MA, Quattlebaum SC, Ramakrishnan VR, Youssef AS. Transposition of the paraclival carotid artery: a novel concept of self-retaining vascular retraction during endoscopic endonasal skull base surgery technical report. Acta Neurochir (Wien). 2016 Aug;158(8):1625-9. PubMed PMID: 27339269
  • Freeman JL, Oushy S, Schowinsky J, Sillau S, Youssef AS. Invasive Giant Cell Tumor of the Lateral Skull Base: A Systematic Review, Meta-Analysis, and Case Illustration. World Neurosurg. 2016 Dec;96:47-57. PubMed PMID: 27269210
  • Rusthoven CG, Koshy M, Sher DJ, Ney DE, Gaspar LE, Jones BL, Karam SD, Amini A, Ormond DR, Youssef AS, Kavanagh BD. Combined-Modality Therapy With Radiation and Chemotherapy for Elderly Patients With Glioblastoma in the Temozolomide Era: A National Cancer Database Analysis. JAMA Neurol. 2016 Jul 1;73(7):821-8. PubMed PMID: 27214765
  • Rosen SA, Getz AE, Kingdom T, Youssef AS, Ramakrishnan VR. Systematic review of the effectiveness of perioperative prophylactic antibiotics for skull base surgeries. Am J Rhinol Allergy. 2016 Mar-Apr;30(2):e10-6. PubMed PMID: 26980379
  • Gompel JJ, Alikhani P, Youssef AS, Loveren HR, Boyev KP, Agazzi S. Anterior Petrosectomy: Consecutive Series of 46 Patients with Attention to Approach-Related Complications. J Neurol Surg B Skull Base. 2015 Sep;76(5):379-84. PubMed PMID: 26401480
  • Downes AE, Freeman JL, Ormond DR, Lillehei KO, Youssef AS. Unilateral Tailored Fronto-Orbital Approach for Giant Olfactory Groove Meningiomas: Technical Nuances. World Neurosurg. 2015 Oct;84(4):1166-73. PubMed PMID: 25986205
  • Carlson AP, Loveren HR, Youssef AS, Agazzi S. Junctional Internal Carotid Artery Aneurysms: The Schrödinger's Cat of Vascular Neurosurgery. J Neurol Surg B Skull Base. 2015 Mar;76(2):150-6. PubMed PMID: 25844299
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Professional Memberships

  • Congress of Neurological Surgeons (CNS), Member
  • American Association of Neurological Surgeons (AANS), Member
  • North American Skull Base Society (NASBS), Member
  • Mayfield Society, Member

Practice Locations

Neurosciences Center - Anschutz
1635 Aurora Ct
4th Floor
Aurora, CO 80045
720-848-2080

UCHealth Brain and Spine Tumor Multidisciplinary Clinic - Anschutz Medical Campus
1665 Aurora Court, Anschutz Cancer Pavilion, 2nd Floor, Suite 2004
Aurora, CO 80045
720-848-0300

Hospital Affiliation
  • University of Colorado Hospital

Specialty Information

Specialties
  • Neurological Surgery, Board Certification (2012)
Conditions & Treatments
  • Brain and Nervous System - Brain Tumors
  • Brain and Nervous System - Chiari Malformation
  • Brain and Nervous System - Pituitary Disorders
  • Brain and Nervous System - Trigeminal Neuralgia
  • Ear, Nose, and Throat (ENT) - Skull Base Tumors
  • Brain and Nervous System
  • Ear, Nose, and Throat (ENT)
Clinical Interests
Complex Brain Tumors, Skull Base Tumors, Minimally Invasive Endoscopic Cranial Procedures, Meningiomas, Acoustic Neuromas, Pituitary tumors, Trigeminal Neuralgia, Chiari Malformation

General Information

Internships:
  • University of South Florida College of Medicine Program (2003)
Residency Programs:
  • University of South Florida College of Medicine Program, Chief Resident, Neurological Surgery (2008)
Fellowships:
  • Drexel University College of Medicine/Hahnemann University Hospital Program, Neurological Surgery (1998)
  • University Hospital/University of Cincinnati College of Medicine Program, Neurological Surgery (2002)
  • University of South Florida College of Medicine Program, Neurological Surgery (2003)
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Languages: English, French, Arabic
Department: Neurosurgery
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