Ivan El-Sayed, MD
Professor
Otolaryngology
School of Medicine
ivan.el-sayed@ucsf.edu 415-885-7528
Ivan H. El-Sayed, MD, is Professor of Clinical Otolaryngology and the Director of the Otolaryngology Minimally Invasive Skull Base Surgery program and center in the Department of Otolaryngology – Head and Neck Surgery (OHNS) at the University of California, San Francisco.
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As of 2015, he has been elected to the North American Skull Base Society Directors Board, and he is recently named the Vice Chair of the American Academy of Otolaryngology Head and Neck Surgery Skull Base Committee. He has also been the Co-Course Director for UCSF Resident Skull Base Approaches Course since 2009, and UCSF Head and Neck Oncology Update Course since 2015. Dr. El-Sayed completed his medical degree and internship from Boston University School of Medicine in Massachusetts. He completed his otolaryngology residency from Boston University, followed by a head and neck surgical oncology fellowship from UCSF. He lectures nationally and internationally on various topics related to head and neck oncology.
Dr. El-Sayed’s clinical focus is skull base surgery and he has developed the minimally invasive program into a nationally recognized program along with his neurosurgical colleagues. The program and center offers a unique capability of providing both endoscopic and open approaches to tailor the approach to the lesion. He has a broad surgical experience having performed over 500 surgical procedures on tumors of the nasal cavity/paranasal sinuses, infratemporal fossa, skull base and pituitary glands in over a decade of experience. He is also interested in the outcomes of research and clinical innovations through novel approach development. His research interest include 1)Rapid detection of chemo/radiosensitivity using a High Throughput system, 2)Nano-therapeutics, 3)3D and Virtual Anatomy for education and surgical planning in skull base and head and neck surgery.
Dr. El-Sayed has published as first or senior author on topics in literature including skull base repair, endoscopic approaches to the maxilla and infratemporal fossa, surgical planning and approaches to the clivus and craniovertebral junction, as well as lesions of the clivus and sella. He is a reviewer for a variety of scientific journals, and he has contributed to over 50 peer-reviewed articles, 10 book chapters, and 2 patents. As of 2015, his work has been cited over 11,000 times in the literature.
Specialty: Head and Neck Surgical Oncology, Minimally Invasive Skull Base Surgery, Salivary Gland Surgery, Sinus Surgery and Rhinology (tumors), CSF leak Closure.
Expertise: Skull base malignancy, oral cancer, paranasal sinus tumors, parapharyngeal space tumors (schwannomas, carotid body tumor, paraganglioma), oral cancer, parotid gland cancer, advanced skin cancers, tumors of the paranasal sinuses, nasopharynx cancer, clivus, and endoscopic surgery
Professional Interests: Oral cancer, tumors of the salivary gland, neck and jaw and skull base surgery. Skull base surgery is a branch of head and neck oncology. Dr. El-Sayed’s research interests is in developing, techniques to treat oral cancer with nanotechnology and minimally invasive surgical approaches to remove tumors from complex anatomic regions in the skull base which include the parotid gland, the nasal cavity and paranasal sinuses, the parapharyngeal space and infratemporal fossa (which includes mandibular tumors, salivary tumors, schwannomas, carotid body tumor, paragangliomas etc). A variety of tumors occur in the nasal cavity that may require endoscopic surgery or an open surgical approach such as sinonasal squamous cell carcinoma, adenocarcinoma, adenoid cystic cancer, esthesioneuroblastoma, sinonasal undifferentiated carcinoma, chondrosarcoma, osteosarcoma, sinonasal melanoma, recurrent nasopharynx cancers, and others. Several nonmalignant tumors occur in this area that are amenable to endoscopic resections such as juvenile nasopharyngeal angiofibroma and inverted papilloma. Dr. El-Sayed frequently cares for patients requiring multidisciplinary teams such as otologic surgery for tumors involving the temporal bone, and neurological surgery for tumors crossing into the intracranial cavity. Dr. El-Sayed also is expert in closure of defects of the skull base (CSF leaks)
Education and Training:
- Medical School: Boston University School of Medicine, MA
- Internship: Boston Medical Center, MA
- Residency: Boston Medical Center, MA - Otolaryngology
- Fellowship: University California San Francisco, CA - Head and Neck Surgical Oncology
Awards and Honors:
- 1995 Alpha Omega Alpha Medical Honor Society.
- 2002 U.S. Patent Office - Spectroscopic Diagnostics for Bacteria in Biologic Samples
- 2003 University of California, San Francisco Medical Center - Thanks Star Award
- 2007 Otolaryngology - Head and Neck Surgery, University of California, San Francisco - Outstanding Productive Physician and Surgeon, Certificate of Accomplishment
- 2007 ScienceWatch- Number 1 cited article in entire field of chemistry. . J Am Chem Soc. 2006 Feb 15;128(6):2115-2120.
- 2007 Most Accessed Article for the 3rd quarter of 2007 for article, American Chemical Society Publications
- 2007 Hot Paper- Nano Lett. 2005.
- 2008 Most Accessed Article for first quarter 2008. J. Phys. Chem. B., 2006.
- 2008 Editor Seleced Paper. Bioconjug Chem. 2007 Sep-Oct;18(5):1490-7.
- 2008 Most Cited Author. Top 20 articles cited in Cancer Letters for 2007. Cancer Letters. 2006 Jul 28;239(1):129-35.
- 2009 Top 25 Hottest Articles Cancer Letters in 2008- 2009: #14. Cancer Letters, Volume 269, Issue 1, September 2008, Pages 57-66
- 2009 UCSF Academy of Medical Educators - Excellence In Teaching
- 2010 Guangzhou Medical University - Honorary Professor
- 2010-2014 Castle Connolly - America's Top Doctors
- 2012 Number 1 Cited Paper from 2007 through May 2012. NanoToday.
- 2011-2014 Marine Magazine - 415 Top Doctors
- 2015 Director’s Board-North American Skull Base Society
- 2015-2017 Vice Chair American Academy Otolaryngology Head and Neck Surgery Skull Base Committee. 2018-2020- Chair American Head and Neck Skull Base Section
Education & Training
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- Clinical Fellowship Otolaryngology University of California, San Francisco 2003
- M.D. School of Medicine Boston University School of Medicine 1996
- Sc B Neuroscience Brown University 1992
Websites
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- Co Director Skull Base and Cerebrovascular Laboratory (skullbaselab.ucsf.edu)
- Clinical Profile at UCSF Medical Center (ucsfhealth.org)
- Profile at UCSF Cancer Center (cancer.ucsf.edu)
Publications (152)
Top publication keywords:
EndoscopyParanasal Sinus NeoplasmsPharyngeal NeoplasmsCerebrospinal Fluid LeakSkull BaseOtorhinolaryngologic Surgical ProceduresGoldSurgical FlapsNeuroendoscopyInfectious Disease Transmission, Patient-to-ProfessionalCervical VertebraeSkull Base NeoplasmsMouth NeoplasmsCarcinoma, Squamous CellNasal Cavity
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Endoscopic Endonasal Versus Transcranial Resection of Tuberculum Sella Meningiomas: An Approach Comparison in Two Patients: 2-Dimensional Operative Video.
Operative neurosurgery (Hagerstown, Md.) 2024 Shoap W, El-Sayed I, Gurrola J, Goldschmidt E -
Neutrophil-to-Lymphocyte Ratio and Pembrolizumab Outcomes in Oral Cavity Squamous Cell Carcinoma.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2024 Truong AA, Lee RH, Wu X, Algazi AP, Kang H, El-Sayed IH, George JR, Heaton CM, Ryan WR, Jeon Y, Kim MO, Ha PK, Wai KC -
Preoperative predictors of biochemical remission in somatotroph adenoma resections: a single-institution retrospective review.
Journal of neurosurgery 2024 Osorio RC, Kabir A, Haddad AF, Badani A, Khela H, Saha A, Juncker R, Peeran Z, Theodosopoulos P, Kunwar S, Gurrola J, El-Sayed IH, Blevins L, Aghi MK -
Assessing chiasm perfusion and postoperative visual function with superior hypophyseal artery indocyanine green angiograms during endoscopic endonasal surgery.
Acta neurochirurgica 2024 Osorio RC, Gurrola J, El-Sayed IH, Goldschmidt E -
Exploring the Combination of Computer Vision and Surgical Neuroanatomy: A Workflow Involving Artificial Intelligence for the Identification of Skull Base Foramina.
World neurosurgery 2024 Payman AA, El-Sayed I, Rubio RR
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Combined Petrosectomy, Trans-Zygomatic Approach, and Facial Nerve Decompression for Resection of a Giant Aneurysmal Bone Cyst in a 5-Year-Old Patient: 2-Dimensional Operative Video.
Operative neurosurgery (Hagerstown, Md.) 2024 Kabir A, Nunez MA, Sharon J, El-Sayed I, Goldschmidt E -
Prognostic risk factors of buccal squamous cell carcinoma: A case-control study.
Head & neck 2024 Callander JK, Souza SS, Eltawil Y, El-Sayed IH, George JR, Ha P, Ryan WR, Xu MJ, Heaton CM -
Sinonasal (Schneiderian) Tumors in the Temporal Bone: Case Series and Systematic Review.
AJNR. American journal of neuroradiology 2024 Deng F, Sadow PM, Khan N, Wu X, El-Sayed IH, Jung DH, Glastonbury CM, Juliano AF -
International Consensus Statement on Allergy and Rhinology: Sinonasal Tumors.
International forum of allergy & rhinology 2024 Kuan EC, Wang EW, Adappa ND, Beswick DM, London NR, Su SY, Wang MB, Abuzeid WM, Alexiev B, Alt JA, Antognoni P, Alonso-Basanta M, Batra PS, Bhayani M, Bell D, Bernal-Sprekelsen M, Betz CS, Blay JY, … -
Elective management of the N0 neck in maxillary sinus squamous cell carcinoma.
Head & neck 2023 Patel EJ, Strohl MP, Yom SS, El-Sayed I -
The neutrophil-to-lymphocyte ratio in salivary gland cancers treated with pembrolizumab.
Head & neck 2023 Lee RH, Truong A, Wu X, Kang H, Algazi AP, El-Sayed IH, George JR, Heaton CM, Ryan WR, Ha PK, Wai KC -
Socioeconomic differences between medically and surgically treated prolactinomas: a retrospective review of 598 patients.
Journal of neurosurgery 2023 Osorio RC, Haddad AF, Hart DM, Goldrich N, Badani A, Kabir AS, Juncker R, Oh JY, Carrete L, Peeran Z, Chalif EJ, Zheng AC, Braunstein S, Theodosopoulos PV, El-Sayed IH, Gurrola J, Kunwar S, Blevins LS… -
Endonasal Endoscopic Anatomy of the Orbito-Cavernous-Pterygopalatine Interface: Multilayer Anatomical Description and Landmarks to Define the Limits of the Compartments.
World neurosurgery 2023 Bartoletti V, Norri N, El-Sayed I, Abla AA, Rodriguez Rubio R -
Superior Hypophyseal Artery Intraoperative Indocyanine Green Angiogram as a Predictor of Postoperative Visual Function After Endoscopic Endonasal Surgery.
Operative neurosurgery (Hagerstown, Md.) 2023 Osorio RC, Aabedi AA, El-Sayed IH, Gurrola J, Goldschmidt E -
Common Carotid-Greater Saphenous-M2 Bypass for Myoepithelial Carcinoma Encasing the Carotid Artery.
World neurosurgery 2023 Tonetti DA, Rinaldo L, Raygor KP, Dubnicoff TB, El-Sayed IH, Abla AA -
Morphometric Analysis of the Ophthalmic and Central Retinal Arteries via the Endoscopic Endonasal Trans-ethmoidal Approach: Surgical Relevance of Vascular Components Within the Medial Intraconal Zones.
World neurosurgery 2023 Bartoletti V, Rios-Zermeno J, El-Sayed I, Abla AA, Rodriguez Rubio R -
Patterns of Postoperative Trismus Following Mandibulectomy and Fibula Free Flap Reconstruction.
Cancers 2023 Lee RH, Evans C, Laus J, Sanchez C, Wai KC, Knott PD, Seth R, El-Sayed IH, George JR, Ryan WR, Heaton CM, Park AM, Ha PK -
A Minimalistic Technique for Neural Tissue Preservation and Neuroanatomical Education: Quantitative Study of the Elnady Technique on Human Cadaveric Specimens.
Cureus 2022 Reihl S, Kim Y, Harmon D, El-Sayed IH, Abla A, Rodriguez Rubio R -
Immersive Surgical Anatomy of the Far-Lateral Approach.
Cureus 2022 Payman A, Rios Zermeno J, Hirpara A, El-Sayed IH, Abla A, Rodriguez Rubio R -
RNA Sequencing and Gene Ontology Analysis in Acute Invasive Fungal Sinusitis.
American journal of rhinology & allergy 2022 David AP, Loftus PA, Russell MS, Goldberg AN, El-Sayed IH, Jan TA, Roland LT -
Correlation between tumor volume and serum prolactin and its effect on surgical outcomes in a cohort of 219 prolactinoma patients.
Journal of neurosurgery 2022 Osorio RC, Pereira MP, Oh T, Joshi RS, Haddad AF, Pereira KM, Donohue KC, Peeran Z, Carson W, Badani A, Wang EJ, Sudhir S, Chandra A, Jain S, Beniwal A, Gurrola J, El-Sayed IH, Blevins LS, … -
Formal Closure of Endoscopic Endonasal Skull Base Defects With a "Bow Tie" Tri-Layer Graft.
The Laryngoscope 2022 El-Sayed IH, Jiam NT, Theodosopoulos PV, McDermott MW, Gurrola JG, Aghi MK -
Endoscopic Endonasal Transpterygoid Approach for Resection of a Meckel Cave Epidermoid Cyst: 2-Dimensional Operative Video.
Operative neurosurgery (Hagerstown, Md.) 2022 Morshed RA, El-Sayed IH, Goldschmidt E -
Adjuvant therapy improves survival in pT4aN0 oral cavity squamous cell carcinoma with bone invasion.
American journal of otolaryngology 2021 Stanford-Moore GB, Sola AM, Chan J, El-Sayed I, George J, Ha P, Ryan WR, Heaton CM -
Socioeconomic predictors of case presentations and outcomes in 225 nonfunctional pituitary adenoma resections.
Journal of neurosurgery 2021 Osorio RC, Pereira MP, Joshi RS, Donohue KC, Sneed P, Braunstein S, Theodosopoulos PV, El-Sayed IH, Gurrola J, Kunwar S, Blevins LS, Aghi MK -
Assessment of Arterial Configurations of the Suprachiasmatic Region from the Endoscopic Endonasal Perspective: A Cadaveric Anatomical Study.
World neurosurgery 2021 Zhu H, Vigo V, Ahluwalia A, El-Sayed I, Abla AA, Rubio RR -
Immersive Surgical Anatomy of the Retrosigmoid Approach.
Cureus 2021 Rodriguez Rubio R, Xie W, Vigo V, Lee A, Tomasi OS, El-Sayed IH, Abla A -
Impact of Smoking and Primary Tumor Subsite on Recurrence in HPV-Associated Oropharyngeal Squamous Cell Carcinoma.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2021 Lee RH, Salesky M, Benjamin T, El-Sayed IH, George JR, Ha PK, Ryan WR, Heaton CM -
Presentation and management of post-operative cerebrospinal fluid leaks after sphenoclival expanded endonasal surgery: A single institution experience.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2021 Jiam NT, David AP, Formeister EJ, Gurrola J, Aghi M, Theodosopoulos P, Villanueva-Meyer J, McDermott MW, El-Sayed IH -
A prospective study of patient-reported xerostomia-related outcomes after parotidectomy.
Laryngoscope investigative otolaryngology 2021 Brodie KD, Zebolsky AL, Ochoa E, Ha PK, Heaton CM, El-Sayed IH, Ryan WR -
Letter: COVID Conundrum: Postoperative COVID-19 Infections Following Endonasal Transsphenoidal Pituitary Surgery.
Neurosurgery 2021 Young JS, Oh T, Arora T, Blevins LS, Aghi MK, El-Sayed IH, Kunwar S, Theodosopoulos PV -
Use of Ultrasound for Navigating the Internal Carotid Artery in Revision Endoscopic Endonasal Skull Base Surgery.
Cureus 2021 Giurintano JP, Gurrola J, Theodosopoulos PV, El-Sayed IH -
Vascularized Pericranial Flap for Endonasal Anterior Skull Base Reconstruction.
Journal of neurological surgery. Part B, Skull base 2021 Giurintano J, McDermott MW, El-Sayed IH -
Patient-Reported Outcomes of Split-Thickness Skin Grafts for Floor of Mouth Cancer Reconstruction.
ORL; journal for oto-rhino-laryngology and its related specialties 2021 Larson AR, Han M, Webb KL, Ochoa E, Stanford-Moore G, El-Sayed IH, George JR, Ha PK, Heaton CM, Ryan WR -
AHNS endocrine surgery section consensus statement on nasopharyngolaryngoscopy and clinic reopening during COVID-19: How to get back to optimal safe care.
Head & neck 2020 Bleier B, Workman A, Burks C, Maxfield A, Stack BC, Nathan CA, McCammon S, Varvares M, Schmalbach C, Wang S, Califano J, Shnayder Y, Gillespie MB, Enepekides D, Witterick I, El-Sayed I, Lin D, Patel U… -
Head and neck surgery during the coronavirus-19 pandemic: The University of California San Francisco experience.
Head & neck 2020 Wai KC, Xu MJ, Lee RH, El-Sayed IH, George JR, Heaton CM, Knott PD, Park AM, Ryan WR, Seth R, Ha PK -
Clinical characteristics and outcomes in elderly patients undergoing transsphenoidal surgery for nonfunctioning pituitary adenoma.
Neurosurgical focus 2020 Pereira MP, Oh T, Joshi RS, Haddad AF, Pereira KM, Osorio RC, Donohue KC, Peeran Z, Sudhir S, Jain S, Beniwal A, Gurrola J, El-Sayed IH, Blevins LS, Theodosopoulos PV, Kunwar S, Aghi MK -
Microsurgical Techniques for Exposing the Internal Maxillary Artery in Cerebral Revascularization Surgery: A Comparative Cadaver Study.
World neurosurgery 2020 Li X, Orscelik A, Vigo V, Kola O, El-Sayed IH, Abla AA, Rubio RR -
Comparative Analysis of Pterional, Supraorbital, Extended Supraorbital, and Transtubercular-Transplanum Approaches for Exposing the Anterior Communicating Artery Complex: A Cadaveric Study.
World neurosurgery 2020 Zhu H, Vigo V, Ahluwalia A, Chae R, El-Sayed I, Abla AA, Rubio RR -
Immediate Voice and Swallowing Complaints Following Revision Anterior Cervical Spine Surgery.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2020 Strohl MP, Choy W, Clark AJ, Mummaneni PV, Dhall SS, Tay BK, Loftus PA, El-Sayed IH, Russell MS -
Clinical characteristics and outcomes of null-cell versus silent gonadotroph adenomas in a series of 1166 pituitary adenomas from a single institution.
Neurosurgical focus 2020 Haddad AF, Young JS, Oh T, Pereira MP, Joshi RS, Pereira KM, Osorio RC, Donohue KC, Peeran Z, Sudhir S, Jain S, Beniwal A, Chopra AS, Sandhu NS, Theodosopoulos PV, Kunwar S, El-Sayed IH, Gurrola J, … -
Endoscopic skull base and transoral surgery during COVID-19 pandemic: Minimizing droplet spread with negative-pressure otolaryngology viral isolation drape.
Head & neck 2020 David AP, Jiam NT, Reither JM, Gurrola JG, Aghi MK, El-Sayed IH -
Patient-Reported Quality of Life After Resection With Primary Closure for Oral Tongue Carcinoma.
The Laryngoscope 2020 Ochoa E, Larson AR, Han M, Webb KL, Stanford-Moore GB, El-Sayed IH, George JR, Ha PK, Heaton CM, Ryan WR -
Development of clinical care guidelines for faculty and residents in the era of COVID-19.
Head & neck 2020 Park JS, El-Sayed IH, Young VN, Pletcher SD -
Tracheostomy guidelines developed at a large academic medical center during the COVID-19 pandemic.
Head & neck 2020 David AP, Russell MD, El-Sayed IH, Russell MS -
Outcomes of sinonasal mucosal melanomas with endoscopic and open resection: a retrospective cohort study.
Journal of neuro-oncology 2020 Almutuawa DM, Strohl MP, Gruss C, van Zante A, Yom SS, McDermott MW, El-Sayed IH -
Replicating Skull Base Anatomy With 3D Technologies: A Comparative Study Using 3D-scanned and 3D-printed Models of the Temporal Bone.
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 2020 Chae R, Sharon JD, Kournoutas I, Ovunc SS, Wang M, Abla AA, El-Sayed IH, Rubio RR -
Stereoscopy in Surgical Neuroanatomy: Past, Present, and Future.
Operative neurosurgery (Hagerstown, Md.) 2020 Rubio RR, Bonaventura RD, Kournoutas I, Barakat D, Vigo V, El-Sayed I, Abla AA -
Machine Learning for Predicting Complications in Head and Neck Microvascular Free Tissue Transfer.
The Laryngoscope 2020 Formeister EJ, Baum R, Knott PD, Seth R, Ha P, Ryan W, El-Sayed I, George J, Larson A, Plonowska K, Heaton C -
Comparative analysis of surgical exposure and freedom between the subtonsillar, endoscope-assisted subtonsillar, and far-lateral approaches to the lower clivus: A cadaveric study.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2020 Wang M, Chae R, Shehata J, Vigo V, Raygor KP, Tomasi SO, McDermott MW, Abla AA, El-Sayed IH, Rodriguez Rubio R -
Nasal septal flap repair of the skull base.
Handbook of clinical neurology 2020 El-Sayed IH -
Contemporary Management of Parapharyngeal Tumors.
Current oncology reports 2019 Strohl MP, El-Sayed IH -
Management of Noncatastrophic Internal Carotid Artery Injury in Endoscopic Skull Base Surgery.
Cureus 2019 Safaee M, Young JS, El-Sayed IH, Theodosopoulos PV -
Beyond Depth of Invasion: Adverse Pathologic Tumor Features in Early Oral Tongue Squamous Cell Carcinoma.
The Laryngoscope 2019 Larson AR, Kemmer J, Formeister E, El-Sayed I, Ha P, George J, Ryan W, Chan E, Heaton C -
Characterization of Anatomical Landmarks for Exposing the Internal Carotid Artery in the Infratemporal Fossa Through an Endoscopic Transmasticator Approach: A Morphometric Cadaveric Study.
World neurosurgery 2019 Li W, Chae R, Rubio RR, Benet A, Meybodi AT, Feng X, Huang G, El-Sayed IH -
ICAR: endoscopic skull-base surgery.
International forum of allergy & rhinology 2019 Wang EW, Zanation AM, Gardner PA, Schwartz TH, Eloy JA, Adappa ND, Bettag M, Bleier BS, Cappabianca P, Carrau RL, Casiano RR, Cavallo LM, Ebert CS, El-Sayed IH, Evans JJ, Fernandez-Miranda JC, Folbe … -
Gold Nanorod-Assisted Photothermal Therapy Decreases Bleeding during Breast Cancer Surgery in Dogs and Cats.
Cancers 2019 Ali MRK, Farghali HAM, Wu Y, El-Sayed I, Osman AH, Selim SA, El-Sayed MA -
Acquisition of Volumetric Models of Skull Base Anatomy Using Endoscopic Endonasal Approaches: 3D Scanning of Deep Corridors Via Photogrammetry.
World neurosurgery 2019 Kournoutas I, Vigo V, Chae R, Wang M, Gurrola J, Abla AA, El-Sayed I, Rubio RR -
Comparative Analysis of the Subtonsillar, Far-Lateral, Extreme-Lateral, and Endoscopic Far-Medial Approaches to the Lower Clivus: An Anatomical Cadaver Study.
World neurosurgery 2019 Wang M, Chae R, Vigo V, Winkler E, McDermott MW, El-Sayed IH, Abla AA, Rubio RR -
Treatment modality impact on quality of life for human papillomavirus-associated oropharynx cancer.
The Laryngoscope 2019 Xu MJ, Plonowska KA, Gurman ZR, Humphrey AK, Ha PK, Wang SJ, El-Sayed IH, Heaton CM, George JR, Yom SS, Algazi AP, Ryan WR -
Construction of Neuroanatomical Volumetric Models Using 3-Dimensional Scanning Techniques: Technical Note and Applications.
World neurosurgery 2019 Rubio RR, Shehata J, Kournoutas I, Chae R, Vigo V, Wang M, El-Sayed I, Abla AA -
Diffusion weighted imaging of esthesioneuroblastoma: Differentiation from other sinonasal masses.
Head & neck 2019 Miracle AC, El-Sayed IH, Glastonbury CM -
Ectopic Thyroid-Stimulating Hormone-Secreting Pituitary Adenoma of the Nasopharynx Diagnosed by Gallium 68 DOTATATE Positron Emission Tomography/Computed Tomography.
World neurosurgery 2019 Kim S, Dillon WP, Hope TA, El-Sayed IH, van Zante A, Wu K, Masharani U -
Ultraviolet light-related DNA damage mutation signature distinguishes cutaneous from mucosal or other origin for head and neck squamous cell carcinoma of unknown primary site.
Head & neck 2019 Chan JW, Yeh I, El-Sayed IH, Algazi AP, Glastonbury CM, Ha PK, Yom SS, van Zante A -
A Combined Extradural-Intradural Technique for an En Bloc Anterior Petrosectomy: A Cadaveric Feasibility Study.
World neurosurgery 2019 Dones F, Kournoutas I, Vigo V, Di Bonaventura R, Raygor K, El-Sayed IH, Abla AA, Rubio RR -
Socioeconomic disparities in a population of patients undergoing total thyroidectomy for benign disease.
Head & neck 2018 Wu TJ, Ha PK, El-Sayed IH, George JR, Heaton CM, Ryan WR, Russell MD -
Human Papillomavirus-Associated Oropharyngeal Cancer: Patterns of Nodal Disease.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2018 Plonowska KA, Strohl MP, Wang SJ, Ha PK, George JR, Heaton CM, El-Sayed IH, Mallen-St Clair J, Ryan WR -
Endoscope Image Capture System with Mirrorless Camera.
Journal of neurological surgery. Part B, Skull base 2018 Wei L, Burke J, Benet A, Aghi M, Gurrola J, El-Sayed I -
AHNS Series: Do you know your guidelines? Principles for treatment of cancer of the paranasal sinuses: A review of the National Comprehensive Cancer Network guidelines.
Head & neck 2018 Byrd JK, Clair JM, El-Sayed I -
Shorter interval between radiation therapy and salvage laryngopharyngeal surgery increases complication rates following microvascular free tissue transfer.
American journal of otolaryngology 2018 Formeister EJ, Sean Alemi A, El-Sayed I, George JR, Ha P, Daniel Knott P, Ryan WR, Seth R, Tamplen ML, Heaton CM -
Mortality risk after clinical management of recurrent and metastatic adenoid cystic carcinoma.
Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale 2018 Xu MJ, Wu TJ, van Zante A, El-Sayed IH, Algazi AP, Ryan WR, Ha PK, Yom SS -
Major prognostic factors for recurrence and survival independent of the American Joint Committee on Cancer eighth edition staging system in patients with cutaneous squamous cell carcinoma treated with multimodality therapy.
Head & neck 2018 Xu MJ, Lazar AA, Garsa AA, Arron ST, Ryan WR, El-Sayed IH, George JR, Algazi AP, Heaton CM, Ha PK, Yom SS -
Dural recurrence among esthesioneuroblastoma patients presenting with intracranial extension.
The Laryngoscope 2018 Yu Y, El-Sayed IH, McDermott MW, Theodosopoulos PV, van Zante A, Kased N, Glastonbury CM, Garsa AA, Yom SS -
Squamous cell carcinoma of unknown primary of the head and neck: Favorable prognostic factors comparable to those in oropharyngeal cancer.
Head & neck 2017 Zhou MJ, van Zante A, Lazar AA, Groppo ER, Garsa AA, Ryan WR, El-Sayed IH, Eisele DW, Yom SS -
Patterns of vascularization and surgical morbidity in juvenile nasopharyngeal angiofibroma: A case series, systematic review, and meta-analysis.
Head & neck 2017 Overdevest JB, Amans MR, Zaki P, Pletcher SD, El-Sayed IH -
The Middle Temporal Artery: Surgical Anatomy and Exposure for Cerebral Revascularization.
World neurosurgery 2017 Rubio RR, Lawton MT, Kola O, Tabani H, Yousef S, Meybodi AT, Burkhardt JK, El-Sayed I, Benet A -
The Endoscopic Buccal Fat Pad Flap for Closure of Skull Base Defects: A Report of 5 Cases.
World neurosurgery 2017 Flis DW, Burke JF, Benet A, Theodosopoulos P, Aghi M, El-Sayed IH -
In Reply: Factors Predicting Recurrence After Resection of Clival Chordoma Using Variable Surgical Approaches and Radiation Modalities.
Neurosurgery 2017 Jahangiri A, Chin AT, Wagner JR, Kunwar S, Ames C, Chou D, Barani I, Parsa AT, McDermott MW, Benet A, El-Sayed IH, Aghi MK -
The Infrazygomatic Segment of the Superficial Temporal Artery: Anatomy and Technique for Harvesting a Better Interposition Graft.
Operative neurosurgery (Hagerstown, Md.) 2017 Meybodi AT, Lawton MT, El-Sayed I, Davies J, Tabani H, Feng X, Benet A -
Exposure of the External Carotid Artery Through the Posterior Triangle of the Neck: A Novel Approach to Facilitate Bypass Procedures to the Posterior Cerebral Circulation.
Operative neurosurgery (Hagerstown, Md.) 2017 Meybodi AT, Lawton MT, Mokhtari P, Kola O, El-Sayed IH, Benet A -
The Endoscopic Endonasal Transmaxillary Approach to Meckel's Cave Through the Inferior Orbital Fissure.
Operative neurosurgery (Hagerstown, Md.) 2017 Zhang X, Tabani H, El-Sayed I, Russell M, Feng X, Benet A -
Locoregional recurrence following maxillectomy: implications for microvascular reconstruction.
The Laryngoscope 2017 Likhterov I, Fritz MA, El-Sayed IH, Rayess HM, Knott PD -
Surgical Technique for High-Flow Internal Maxillary Artery to Middle Cerebral Artery Bypass Using a Superficial Temporal Artery Interposition Graft.
Operative neurosurgery (Hagerstown, Md.) 2017 Feng X, Meybodi AT, Rincon-Torroella J, El-Sayed IH, Lawton MT, Benet A -
Early Localization of the Third Segment of the Vertebral Artery: The Atlanto-Mastoid Line.
Operative neurosurgery (Hagerstown, Md.) 2016 Meybodi AT, Rincon-Torroella J, El-Sayed IH, Lawton MT, Benet A -
Volumetric Growth of Cervical Schwannoma as a Predictor of Surgical Intervention.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2016 Alemi AS, Heaton CM, Ryan WR, El-Sayed I, Wang SJ -
Combined Endoscopic Transoral and Endonasal Approach to the Jugular Foramen: A Multiportal Expanded Access to the Clivus.
World neurosurgery 2016 Zhang X, Tabani H, El-Sayed I, Meybodi AT, Griswold D, Mummaneni P, Benet A -
The Lateral Triangle of the Middle Fossa: Surgical Anatomy and a Novel Technique for Transcranial Exposure of the Internal Maxillary Artery.
Operative neurosurgery (Hagerstown, Md.) 2016 Feng X, Lawton MT, Rincon-Torroella J, El-Sayed IH, Meybodi AT, Benet A -
Delineation of radiation therapy target volumes for cutaneous malignancies involving the ophthalmic nerve (cranial nerve V-1) pathway.
Practical radiation oncology 2016 Anwar M, Yu Y, Glastonbury CM, El-Sayed IH, Yom SS -
Assessment of the Endoscopic Endonasal Transclival Approach for Surgical Clipping of Anterior Pontine Anterior-Inferior Cerebellar Artery Aneurysms.
World neurosurgery 2016 Sanmillan JL, Lawton MT, Rincon-Torroella J, El-Sayed IH, Zhang X, Meybodi AT, Gabarros A, Benet A -
The endoscopic transoral approach to the craniovertebral junction: an anatomical study with a clinical example.
Neurosurgical focus 2016 Chan AK, Benet A, Ohya J, Zhang X, Vogel TD, Flis DW, El-Sayed IH, Mummaneni PV -
In Vitro Capture of Small Ferrous Particles with a Magnetic Filtration Device Designed for Intravascular Use with Intraarterial Chemotherapy: Proof-of-Concept Study.
Journal of vascular and interventional radiology : JVIR 2015 Mabray MC, Lillaney P, Sze CH, Losey AD, Yang J, Kondapavulur S, Liu D, Saeed M, Patel A, Cooke D, Jun YW, El-Sayed I, Wilson M, Hetts SW -
Invasive facial fungal infections: Orofacial soft-tissue infiltration in immunocompromised patients.
Radiology case reports 2015 Jun P, Russell M, El-Sayed I, Dillon W, Glastonbury C -
A Tunneled Subcricoid Approach for Anterior Cervical Spine Reoperation: Technical and Safety Results.
World neurosurgery 2015 Winkler EA, Rowland NC, Yue JK, Birk H, Ozpinar A, Tay B, Ames CP, Mummaneni PV, El-Sayed IH -
Anterolateral Thigh Adipofascial Flap: A New Option for Scalp Reconstruction.
Journal of reconstructive microsurgery 2015 Markey JD, Seth R, Wang SJ, Ryan WR, El-Sayed IH, Knott PD -
Combined Endonasal-Transcervical Approach to a Metastatic Parapharyngeal Space Papillary Thyroid Carcinoma.
Cureus 2015 Benet A, Plata Bello J, El-Sayed I -
The endonasal endoscopic harvest and anatomy of the buccal fat pad flap for closure of skull base defects.
The Laryngoscope 2015 Markey J, Benet A, El-Sayed IH -
Factors predicting recurrence after resection of clival chordoma using variable surgical approaches and radiation modalities.
Neurosurgery 2015 Jahangiri A, Chin AT, Wagner JR, Kunwar S, Ames C, Chou D, Barani I, Parsa AT, McDermott MW, Benet A, El-Sayed IH, Aghi MK -
Sinonasal morbidity following endoscopic endonasal skull base surgery.
Clinical neurology and neurosurgery 2015 Awad AJ, Mohyeldin A, El-Sayed IH, Aghi MK -
Risk factors for postoperative cerebrospinal fluid leak and meningitis after expanded endoscopic endonasal surgery.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2014 Ivan ME, Iorgulescu JB, El-Sayed I, McDermott MW, Parsa AT, Pletcher SD, Jahangiri A, Wagner J, Aghi MK -
Gangliogliomas of the optic pathway.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2014 Rolston JD, Han SJ, Cotter JA, El-Sayed IH, Aghi MK -
Pigmented villonodular synovitis of the temporomandibular joint with intracranial extension: A case series and systematic review.
Head & neck 2014 Safaee M, Oh T, Sun MZ, Parsa AT, McDermott MW, El-Sayed IH, Bloch O -
Risk factors for cerebrospinal leak after endoscopic skull base reconstruction with nasoseptal flap.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2014 Gruss CL, Al Komser M, Aghi MK, Pletcher SD, Goldberg AN, McDermott M, El-Sayed IH -
Multidisciplinary management of advanced basal cell carcinoma: report of four cases.
Journal of drugs in dermatology : JDD 2014 Yu J, Aldabagh B, Wang J, Yom SS, El-Sayed I, Knott D, McGrath MH, Arron S, UCSF High Risk Skin Cancer Program -
Panostotic expansile bone disease with massive jaw tumor formation and a novel mutation in the signal peptide of RANK.
Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research 2014 Schafer AL, Mumm S, El-Sayed I, McAlister WH, Horvai AE, Tom AM, Hsiao EC, Schaefer FV, Collins MT, Anderson MS, Whyte MP, Shoback DM -
Impact of platybasia and anatomic variance on surgical approaches to the craniovertebral junction.
The Laryngoscope 2014 Burke K, Benet A, Aghi MK, El-Sayed I -
National trends in surgery for sinonasal malignancy and the effect of hospital volume on short-term outcomes.
The Laryngoscope 2014 Ouyang D, El-Sayed IH, Yom SS -
Extended endoscopic endonasal approach for suprasellar Rathke's cleft cysts.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2013 Jahangiri A, Potts M, Kunwar S, Blevins L, El-Sayed IH, Aghi MK -
Endoscopic surgery for tuberculum sellae meningiomas: a systematic review and meta-analysis.
Neurosurgical review 2013 Clark AJ, Jahangiri A, Garcia RM, George JR, Sughrue ME, McDermott MW, El-Sayed IH, Aghi MK -
Subacute cystic expansion of intracranial juvenile psammomatoid ossifying fibroma.
Journal of neurosurgery. Pediatrics 2013 Rowland NC, Jermakowicz WJ, Tihan T, El-Sayed IH, McDermott MW -
Microfluidic validation of diagnostic protein markers for spontaneous cerebrospinal fluid rhinorrhea.
Journal of proteome research 2013 Apori AA, Brozynski MN, El-Sayed IH, Herr AE -
The prognostic implications of Hyam's subtype for patients with Kadish stage C esthesioneuroblastoma.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2012 Kaur G, Kane AJ, Sughrue ME, Madden M, Oh MC, Sun MZ, Safaee M, El-Sayed I, Aghi M, McDermott MW, Berger MS, Parsa AT -
Skull base chordomas: clinical features, prognostic factors, and therapeutics.
Neurosurgery clinics of North America 2012 Jahangiri A, Jian B, Miller L, El-Sayed IH, Aghi MK -
Minimally invasive approaches to the anterior skull base.
Neurosurgery clinics of North America 2012 Ivan ME, Jahangiri A, El-Sayed IH, Aghi MK -
Computed tomography and magnetic resonance imaging characteristics of acute invasive fungal sinusitis.
Archives of otolaryngology--head & neck surgery 2011 Groppo ER, El-Sayed IH, Aiken AH, Glastonbury CM -
Diseases of the odontoid and craniovertebral junction with management by endoscopic approaches.
Otolaryngologic clinics of North America 2011 Wu JC, Mummaneni PV, El-Sayed IH -
The importance of platybasia and the palatine line in patient selection for endonasal surgery of the craniocervical junction: a radiographic study of 12 patients.
World neurosurgery 2011 El-Sayed IH, Wu JC, Dhillon N, Ames CP, Mummaneni P -
Endoscopic anterior maxillotomy: infratemporal fossa via transnasal approach.
The Laryngoscope 2011 El-Sayed I, Pletcher S, Russell M, McDermott M, Parsa A -
External light guidance for percutaneous dilatational tracheotomy.
Head & neck 2011 El-Sayed IH, Ho JE, Eisele DW -
Comparative study of photothermolysis of cancer cells with nuclear-targeted or cytoplasm-targeted gold nanospheres: continuous wave or pulsed lasers.
Journal of biomedical optics 2010 Huang X, Kang B, Qian W, Mackey MA, Chen PC, Oyelere AK, El-Sayed IH, El-Sayed MA -
The unrecognised difficult extubation: a call for vigilance.
Anaesthesia 2010 Antoine J, Hussain Z, El-Sayed I, Apfel CC -
Identifying and improving knowledge deficits of emergency airway management of tracheotomy and laryngectomy patients: a pilot patient safety initiative.
International journal of otolaryngology 2010 El-Sayed IH, Ryan S, Schell H, Rappazini R, Wang SJ -
Nanotechnology in head and neck cancer: the race is on.
Current oncology reports 2010 El-Sayed IH -
Applications of gold nanorods for cancer imaging and photothermal therapy.
Methods in molecular biology (Clifton, N.J.) 2010 Huang X, El-Sayed IH, El-Sayed MA -
Combined transnasal and transoral endoscopic approaches to the craniovertebral junction.
Journal of craniovertebral junction & spine 2010 El-Sayed IH, Wu JC, Ames CP, Balamurali G, Mummaneni PV -
Mandibular osteotomies for access to select parapharyngeal space neoplasms.
Head & neck 2009 Kolokythas A, Eisele DW, El-Sayed I, Schmidt BL -
Noble metals on the nanoscale: optical and photothermal properties and some applications in imaging, sensing, biology, and medicine.
Accounts of chemical research 2008 Jain PK, Huang X, El-Sayed IH, El-Sayed MA -
Endoscopic reconstruction of skull base defects with the nasal septal flap.
Skull base : official journal of North American Skull Base Society ... [et al.] 2008 El-Sayed IH, Roediger FC, Goldberg AN, Parsa AT, McDermott MW -
Gold nanorod assisted near-infrared plasmonic photothermal therapy (PPTT) of squamous cell carcinoma in mice.
Cancer letters 2008 Dickerson EB, Dreaden EC, Huang X, El-Sayed IH, Chu H, Pushpanketh S, McDonald JF, El-Sayed MA -
Patterns of failure after combined-modality approaches incorporating radiotherapy for sinonasal undifferentiated carcinoma of the head and neck.
International journal of radiation oncology, biology, physics 2008 Chen AM, Daly ME, El-Sayed I, Garcia J, Lee NY, Bucci MK, Kaplan MJ -
Effect of plasmonic gold nanoparticles on benign and malignant cellular autofluorescence: a novel probe for fluorescence based detection of cancer.
Technology in cancer research & treatment 2007 El-Sayed I, Huang X, Macheret F, Humstoe JO, Kramer R, El-Sayed M -
Gold nanoparticles: interesting optical properties and recent applications in cancer diagnostics and therapy.
Nanomedicine (London, England) 2007 Huang X, Jain PK, El-Sayed IH, El-Sayed MA -
The potential use of the enhanced nonlinear properties of gold nanospheres in photothermal cancer therapy.
Lasers in surgery and medicine 2007 Huang X, Qian W, El-Sayed IH, El-Sayed MA -
Plasmonic photothermal therapy (PPTT) using gold nanoparticles.
Lasers in medical science 2007 Huang X, Jain PK, El-Sayed IH, El-Sayed MA -
Peptide-conjugated gold nanorods for nuclear targeting.
Bioconjugate chemistry 2007 Oyelere AK, Chen PC, Huang X, El-Sayed IH, El-Sayed MA -
Parapharyngeal space schwannomas: preoperative imaging determination of the nerve of origin.
Archives of otolaryngology--head & neck surgery 2007 Saito DM, Glastonbury CM, El-Sayed IH, Eisele DW -
Cancer cells assemble and align gold nanorods conjugated to antibodies to produce highly enhanced, sharp, and polarized surface Raman spectra: a potential cancer diagnostic marker.
Nano letters 2007 Huang X, El-Sayed IH, Qian W, El-Sayed MA -
Carcinomas of the paranasal sinuses and nasal cavity treated with radiotherapy at a single institution over five decades: are we making improvement?
International journal of radiation oncology, biology, physics 2007 Chen AM, Daly ME, Bucci MK, Xia P, Akazawa C, Quivey JM, Weinberg V, Garcia J, Lee NY, Kaplan MJ, El-Sayed I, Eisele DW, Fu KK, Phillips TL -
Intensity-modulated radiation therapy for malignancies of the nasal cavity and paranasal sinuses.
International journal of radiation oncology, biology, physics 2007 Daly ME, Chen AM, Bucci MK, El-Sayed I, Xia P, Kaplan MJ, Eisele DW -
Solitary fibrous tumor of the retropharynx causing obstructive sleep apnea.
American journal of otolaryngology 2006 El-Sayed IH, Eisele DW, Yang TL, Iezza G -
Calculated absorption and scattering properties of gold nanoparticles of different size, shape, and composition: applications in biological imaging and biomedicine.
The journal of physical chemistry. B 2006 Jain PK, Lee KS, El-Sayed IH, El-Sayed MA -
Determination of the minimum temperature required for selective photothermal destruction of cancer cells with the use of immunotargeted gold nanoparticles.
Photochemistry and photobiology 2006 Huang X, Jain PK, El-Sayed IH, El-Sayed MA -
Cancer cell imaging and photothermal therapy in the near-infrared region by using gold nanorods.
Journal of the American Chemical Society 2006 Huang X, El-Sayed IH, Qian W, El-Sayed MA -
Management of a sporadic malignant subfrontal peripheral nerve sheath tumor.
Journal of neuro-oncology 2006 Sanchez-Mejia RO, Pham DN, Prados M, Tihan T, Cha S, El-Sayed I, McDermott MW -
Selective laser photo-thermal therapy of epithelial carcinoma using anti-EGFR antibody conjugated gold nanoparticles.
Cancer letters 2005 El-Sayed IH, Huang X, El-Sayed MA -
Gold nanoparticles: catalyst for the oxidation of NADH to NAD(+).
Journal of photochemistry and photobiology. B, Biology 2005 Huang X, El-Sayed IH, Yi X, El-Sayed MA -
Surface plasmon resonance scattering and absorption of anti-EGFR antibody conjugated gold nanoparticles in cancer diagnostics: applications in oral cancer.
Nano letters 2005 El-Sayed IH, Huang X, El-Sayed MA -
Sentinel lymph node biopsy in head and neck cancer.
Otolaryngologic clinics of North America 2005 El-Sayed IH, Singer MI, Civantos F -
Model system for growing and quantifying Streptococcus pneumoniae biofilms in situ and in real time.
Applied and environmental microbiology 2004 Donlan RM, Piede JA, Heyes CD, Sanii L, Murga R, Edmonds P, El-Sayed I, El-Sayed MA -
Otologic manifestations of amyloidosis.
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 2002 El-Sayed I, Busaba NY, Faquin WC -
Unusual locking of silicon chains into all-transoid conformation by pentacoordinate silicon atoms.
Journal of the American Chemical Society 2001 El-Sayed I, Hatanaka Y, Onozawa SY, Tanaka M -
Presentation and treatment of a posttraumatic pseudomeningocele of the superior orbit.
American journal of otolaryngology 2000 Smith DK, El-Sayed I, Pafundi E, Dolan RW -
Antitumor activities of vanadium(IV), manganese(IV), iron(III), cobalt(II) and copper(II) complexes of 2-methylaminopyridine.
Cancer letters 1998 El-Naggar MM, El-Waseef AM, El-Halafawy KM, El-Sayed IH