Dr. Zaydan’s clinical interests include providing longitudinal care and treatment for patients with neurological and neuro-ophthalmic conditions, and his research interests include multiple sclerosis and meuromyelitis optica. He has published numerous articles in peer-reviewed journals and is a member of the American Academy of Neurology and the North American Neuro-Ophthalmology Society.
- Virginia Commonwealth University Medical College, Fellowship
- Virginia Commonwealth University Medical College, Residency
- Matrouh General Hospital Ministry of Health, Residency
- Alexandria University, MD
Education & Training
Tominersen in Adults with Manifest Huntington's Disease. McColgan P, Thobhani A, Boak L, Schobel SA, Nicotra A, Palermo G, Trundell D, Zhou J, Schlegel V, Sanwald Ducray P, Hawellek DJ, Dorn J, Simillion C, Lindemann M, Wheelock V, Durr A, Anderson KE, Long JD, Wild EJ, Landwehrmeyer GB, Leavitt BR, Tabrizi SJ, Doody R; GENERATION HD1 Investigators. N Engl J Med. 2023 Dec 7;389(23):2203-2205. doi: 10.1056/NEJMc2300400.
Comparison of switching to 6-week dosing of natalizumab versus continuing with 4-week dosing in patients with relapsing-remitting multiple sclerosis (NOVA): a randomised, controlled, open-label, phase 3b trial. Foley JF, Defer G, Ryerson LZ, Cohen JA, Arnold DL, Butzkueven H, Cutter G, Giovannoni G, Killestein J, Wiendl H, Smirnakis K, Xiao S, Kong G, Kuhelj R, Campbell N; NOVA study investigators. Lancet Neurol. 2022 Jul;21(7):608-619. doi: 10.1016/S1474-4422(22)00143-0. Epub 2022 Apr 25.
Long-Term Safety and Efficacy of Eculizumab in Aquaporin-4 IgG-Positive NMOSD. Wingerchuk DM, Fujihara K, Palace J, Berthele A, Levy M, Kim HJ, Nakashima I, Oreja-Guevara C, Wang KC, Miller L, Shang S, Sabatella G, Yountz M, Pittock SJ; PREVENT Study Group. Ann Neurol. 2021 Jun;89(6):1088-1098. doi: 10.1002/ana.26049. Epub 2021 Feb 27.
Effects of Ibudilast on MRI Measures in the Phase 2 SPRINT-MS Study. Naismith RT, Bermel RA, Coffey CS, Goodman AD, Fedler J, Kearney M, Klawiter EC, Nakamura K, Narayanan S, Goebel C, Yankey J, Klingner E, Fox RJ; SPRINT-MS investigators. Neurology. 2021 Jan 26;96(4):e491-e500. doi: 10.1212/WNL.0000000000011314. Epub 2020 Dec 2.
Differential tractography as a track-based biomarker for neuronal injury. Yeh FC, Zaydan IM, Suski VR, Lacomis D, Richardson RM, Maroon JC, Barrios-Martinez J. Neuroimage. 2019 Nov 15;202:116131. doi: 10.1016/j.neuroimage.2019.116131. Epub 2019 Aug 28.