NersesSanossianMD

Neurology • Los Angeles, CA

Hospital/Neurohospitalist, Neuroimaging, Spinal Disorder, Vascular Neurology

Associate Professor of Neurology University of Southern California

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Office
1520 San Pablo St
Ste 3000
Los Angeles, CA 90033
Phone+1 323-442-5710

Fax+1 323-442-5736

Education & Training

UCLA David Geffen School of Medicine/UCLA Medical CenterFellowship, Vascular Neurology, 2004 - 2006
Albert Einstein College of Medicine & Montefiore Medical Center2001 - 2004
Montefiore Medical Center2000 - 2001
Albert Einstein College of MedicineClass of 2000
University of California San DiegoBS, Biochemistry & Cell Biology, Cum Laude, 1996

Certifications & Licensure

CA State Medical License 2004 - 2026
MI State Medical License 2016 - 2020
NY State Medical License 2001 - 2020
IN State Medical License 2014 - 2019
KY State Medical License 2016 - 2019
NJ State Medical License 2017 - 2019
NV State Medical License 2015 - 2019
OK State Medical License 2016 - 2019
AR State Medical License 2017 - 2018
American Board of Psychiatry and Neurology Neurology
American Board of Psychiatry and Neurology Vascular Neurology
United Council for Neurological SubspecialtiesNeuroimaging
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Awards, Honors, & Recognition

Stroke Progress and Innovation Award 2011
Year IV Student Teaching Award USC Keck School of Medicine, 2010
Teacher of the Year, Department of Neurology, USC (2007), 2009
Junior Academic Neurologist Scholarship American Neurol. Assn., 2009
Fellow Teaching Award, Department of Neurology, UCLA (2005), 2006
Certificate of Appreciation for Generous Contribution to the Teaching Art Olive-View UCLA Medical Center Foundation, 2006
Chief Resident, Department of Neurology, Albert Einstein 2003
Young Investigator Award Clinical Neurophysiology Society, 2000
High Distinction in Major, Department of Biology, UCSD 1996
President’s Undergraduate Research Fellowship University of California San Diego, 1995
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Clinical Trials

Intervention to Enable Stroke Survivors in Los Angeles County Hospitals to "Stay Within the Guidelines" Start of enrollment: 2010 Jan 01
Completed
Not Applicable
Intra-arterial Magnesium Administration for Acute Stroke Start of enrollment: 2012 Mar 01
Terminated
Phase 1, Phase 2
Field Administration of Stroke Therapy-Blood Pressure Lowering Start of enrollment: 2013 Apr 01
Terminated
Phase 2

Publications & Presentations

PubMed

42 citations
Mechanical thrombectomy in acute stroke: utilization variances and impact of procedural volume on inpatient mortality.
Peter Adamczyk, Frank J. Attenello, Ge Wen, Shuhan He, Jonathan J. Russin
Journal of Stroke and Cerebrovascular Diseases. 2013-11-01
111 citations
Prehospital transdermal glyceryl trinitrate in patients with ultra-acute presumed stroke (RIGHT-2): an ambulance-based, randomised, sham-controlled, blinded, phase 3 t...
Philip M.W. Bath, Polly Scutt, Craig S. Anderson, Jason P. Appleton, Evind Berge
Lancet. 2019-03-09
67 citations
Trends in cancer diagnoses among inpatients hospitalized with stroke.
Nerses Sanossian, Christina Djabiras, William J. Mack, Bruce Ovbiagele
Journal of Stroke and Cerebrovascular Diseases. 2013-10-01

Journal Articles

Achievement of National Lipid Goals in Adults with Stroke, Cardiovascular Disease, and Diabetes.
Sanossian N, Sung G, Ovbiagele B, Stroke 40(4) e179, 2009
Improving the reliability of stroke disability grading in clinical trials and clinical practice: the Rankin Focused Assessment (RFA).
Saver JL, Filip B, Hamilton S, Yanes A, Craig S, Cho M, Conwit R, Starkman S; FAST-MAG Investigators and Coordinators, Stroke 41(5):992-5
Endovascular thrombectomy for acute ischemic stroke in failed intravenous tissue plasminogen activator versus non-intravenous tissue plasminogen activator patients: re...
Shi ZS, Loh Y, Walker G, Duckwiler GR; MERCI and Multi MERCI Investigators, Stroke 41(6):1185-92
Clinical outcomes in middle cerebral artery trunk occlusions versus secondary division occlusions after mechanical thrombectomy: pooled analysis of the MERCI and Multi...
Shi ZS, Loh Y, Walker G, Duckwiler GR; MERCI and Multi-MERCI Investigators, Stroke 41(5):953-60
Risk Assessment of Symptomatic Intracerebral Hemorrhage After Thrombolysis Using DWI-ASPECTS.
Singer OC, Kurre W, Humpich MC, et al, Stroke 40(8):2743-8
Risk of Symptomatic Intracerebral Hemorrhage in Patients Treated with Intra-Arterial Thrombolysis.
Singer OC, Berkefeld J, Lorenz MW, et al, Cerebrovascular Diseases 27(4):368-374
Impact of Reperfusion after 3 Hours of Symptom Onset on Tissue Fate in Acute Cerebral Ischemia.
Bang OY, Liebeskind DS, Buck BH, et al. for the UCLA MRI Investigators, Journal of Neuroimaging
The Combined Approach to Lysis Utilizing Eptifibatide and rt-PA in Acute Ischemic Stroke.
Pancioli AM, Broderick J, Brott T, et al. for the CLEAR Trial Investigators, The CLEAR Stroke Trial, Stroke 39(12):3268-3276
Impact of collateral flow on tissue fate in acute ischaemic stroke.
Bang OY, Saver JL, Buck BH, et al, Journal of Neurology, Neurosurgery, and Psychiatry 79:625-629
Mechanical Thrombectomy for Acute Ischemic Stroke: Final Results of the Multi MERCI Trial.
Smith WS, Sung G, Saver JL, et al. for the Multi MERCI Investigators, Stroke 39(4):1205-12
Risk for symptomatic intracerebral hemorrhage after thrombolysis assessed by diffusion-weighted magnetic resonance imaging.
Singer OC, Humpich MC, Fiehler J, et al. for the MR Stroke Group, Annals of Neurology 63(1):52-60, 2007
Bleeding Risk Analysis in Stroke Imaging Before ThromboLysis (BRASIL). Pooled Analysis of T2*-Weighted Magnetic Resonance Imaging Data from 570 Patients.
Fiehler J, Albers GW, Boulanger JM, et al., for the MR Stroke Group, Stroke 38(10):2738-44
Leukoaraiosis Is a Risk Factor for Symptomatic Intracerebral Hemorrhage After Thrombolysis for Acute Stroke.
Neumann-Haefelin T, Hoelig S, Berkefeld J, et al, Stroke 37(10):2463-6
Safety of Mechanical Thrombectomy and Intravenous Tissue Plasminogen Activator in Acute Ischemic Stroke. Results of the Multi Mechanical Embolus Removal in Cerebral Is...
Smith WS for the Multi MERCI Investigators, American Journal of Neuroradiology 27:1177-1182
The Interventional Management of Stroke (IMS) II Study.
The IMS II Investigators, Stroke 38(7):2127-35
Interrupting Statins Worsens Acute Stroke Outcomes.
Sanossian N, Ovbiagele B, Journal Watch Neurology
Imaging in Patient Selection for Endovascular Stroke Therapy: How well do blood flow imaging and collaterals on angiography predict brain at risk?
Liebeskind DS, Sanossian N, Neurology
Intracranial Aneurysm Mimicking Neoplasm on MR.
Malek E, Ahmadi J, Sanossian N, Journal of Neuroimaging 19(1): 106, 2009
The Effect of Serum Apolipoprotein B/A-1 Ratio on Baseline Carotid Intima-Media Thickness (CIMT) and CIMT Progression in a Population Free of Cardiovascular Disease.
Sanossian N, Kono N, Mack WJ, Alaupovic P, Hodis HN, Cerebrovascular Diseases 25(Suppl.2) 68, 2008
Antiplatelet Use is Associated with Less Severe Stroke in Patients with No Prior History of Stroke or TIA.
Sanossian N, Saver JL, Razinia T, Kim D, Ovbiagele B, Stroke, 37(2):626, 2006
Frequency and Predictors of Cerebral Microbleeds in Ischemic Stroke and TIA Patients.
Ovbiagele B, Saver JL, Salamon N, Villablanca JP, Razinia T, Alger JR, Kim D, Sanossian N, Liebeskind DS, Stroke, 37(2):722, 2006
Gradient-Echo MRI Phase Mismapping Reveals Angiographic Correlates in Acute Ischemic Stroke.
Liebeskind DS, Sanossian N, Alger JR, Kim D, Starkman S, Ovbiagele B, Laughton AL, Salamon N, Jahan R, Duckwiler GR, Vinnuela F, Villablanca JP, Saver JL, Stroke, 37(2):637, 2006
Aspirin-Based Antithrombotic Regiment is Associated with Less Severe Stroke.
Sanossian N, Saver JL, Kidwell CS, Fredieu A, Suzuki S, Selco SL, Rajajee V, Razinia T, Ovbiagele B, Stroke, 36(2):454-5, 2005
Associations between vascular risk factors, measures of carotid atherosclerosis and measures of brain volume and cortical thickness in older adults.
Cardenas VA, Reed B, Chao LL, Sanossian N, Mack WJ, DeCarli CC, Jagust WJ, Kramer J, Chui H, Weiner MW, Stroke
Trends in Cancer Diagnoses among Patients Hospitalized with Stroke.
Sanossian N, Djabiras C, Mack WJ, Ovbiagele B, Neuroepidemiology
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Books/Book Chapters

Chapter: Management of transient or mild ischemia and early secondary prevention
Page 109 - 122Poppe AY, Sanossian N, Coutts SB, Demchuck AEditors: Liebeskind DS.Clinical Publishing/Atlas Medical Publishing, Oxford, UK

Abstracts/Posters

Low Serum HDL-cholesterol Levels are Associated with More Severe Stroke in Young Patients.
Sanossian N, Saver JL, Kidwell CS, Selco SL, Rajajee V, Razinia T, Ovbiagele B, Neurology, 64(5), S1:A61, 2005
Angiography Reveals that FLAIR Vascular Hyperintensities are Due to Slow Flow, Not Thrombus.
Sanossian N, Saver JL, Kim D, Starkman S, Ovbiagele B, Laughton AL, Jahan R, Duckwiler GR, Vinuela F, Alger JR, Salamon N, Villablanca JP, Liebeskind DS, Stroke, 37(2):651, 2006
Is There Publication Bias in the Stroke Literature? Factors Associated with Full Manuscript Publication of Stroke Research Originally Presented in Abstract Form.
Sanossian N, Ohanian AG, Linda I Kim, Saver JL, Ovbiagele B, Stroke, 37(2):743, 2006
Acute Prehospital Stroke Care Presenting to a Single Emergency Room.
Kim D, Kaufman S, Starkman S, Saver JL, Eckstein M, Sanossian N, Guzy JM, Liebeskind DS, Neurology, 66(5), S2:A65, 2006
Postocclusion Arterial Sampling: A Novel Technique for Assessing Blood Quality of Collateral Perfusion in Acute Ischemic Stroke.
Liebeskind DS, Kim D, Sanossian N, Ali LK, Buck BH, Starkman S, Vespa PM, Bruce Obviagele, Jill M Haines, Guzy JM, Jahan R, Duckwiler GR, Vinnuela F, Saver JL, Stroke, 37(2):653, February 2006
Gender Does Not Influence Functional Outcome or Recanalization Rates in Patients Treated with Intra-arterial Thrombolysis for Acute Stroke.
Shah SH, Liebeskind DS, Saver JL, Starkman S, Vinnuela F, Duckwiler GR, Jahan R, Kim D, Sanossian N, Ovbiagele B, Stroke, 37(2):691, 2006
The Topography and Pathogenesis of Subarachnoid FLAIR Hyperintensity in Acute Ischemic Stroke.
Suzuki S, Saver JL, Alger JR, Starkman S, Ovbiagele B, Jahan R, Duckwiler GR, Salamon N, Pablo J Villablanca, Kim D, Sanossian N, Vinnuela F, Liebeskind DS, Stroke, 37(2):700, 2006
Angiographic Validation of a PWI MRI Reperfusion Scale.
Nazliel B, Kim D, Saver JL, Suzuki S, Jahan R, Duckwiler GR, Vinnuela F, Sanossian N, Buck BH, Ali LK, Vespa PM, Alger JR, Salamon N, Villablanca JP, Liebeskind DS, Stroke, 37(2):702
Early Dramatic Recovery in Patients Treated with Intra-arterial Thrombolysis.
Kim D, Liebeskind DS, Starkman S, Ovbiagele B, Vinnuela F, Duckwiler GR, Jahan R, Vespa PM, Sanossian N, Ali LK, Buck BH, Saver JL, Stroke, 37(2):705, 2006
The Volume of Middle Cerebral Artery Thrombi: Assessment by GRE MRI, Gender Differences, and Relation to Response to Fibrinolytic Therapy.
BH Buck, D Kim, JL Saver, S Starkman, B Ovbiagele, N Sanossian, LK Ali, J Alger, JP Villablanca, N Salamon, G Duckwiler, R Jahan, F Vinuela, A Rahiman, DS Liebeskind, Stroke, 37(2):648, 2006
Isolated FLAIR Vascular Hyperintensities May Predict Stroke After TIA.
Sanossian N, Ances BM, Saver JL, Shah SH, Kim D, Liebeskind DS, Journal of Neuroimaging, 16(1):95, 2006
Perfusion-Weighted MRI Correlates of Early Venous Drainage on Angiography in Acute Ischemic Stroke.
Sanossian N, Alger JR, Saver JL, Starkman S, Kim D, Salamon N, Villablanca JP, Jahan R, Duckwiler GR, Vinnuela F, and Liebeskind DS, Journal of Neuroimaging, 16(1):96, 2006
Multimodal Angiographic Imaging of Giant Cell Arteritis (GCA): Extracranial and Intracranial Findings.
Marder CP, Villablanca JP, Wolf RL, Selco SL, Sanossian N, Jahan R, RW Hurst, Liebeskind DS, Journal of Neuroimaging, 16(1):90, 2006
Adherence Rates and Achievement of Target Cholesterol Goals 3 Months After Hospital Initiation of Statins in Stroke Patients.
Sanossian N, Saver JL, Liebeskind DS, Kim D, Razinia T, Ovbiagele B, Neurology, 66(5), S2:A25. 2006
Diffusion-Perfusion MRI Patterns and Angiographic Correlates in Acute Middle Cerebral Artery Trunk Occlusion.
Ali LK, Saver JL, Starkman S, Ovbiagele B, Vinnuela F, Gray R. Duckwiler, Jahan R, Alger JR, Salamon N, Villablanca JP, Kim D, Sanossian N, Buck BH, Liebeskind DS, Neurology, 66(5), S2:A111, 2006
Up! A Novel Provacative Maneuver to Guide Acute Ischemic Stroke Management.
Ali LK, Saver JL, Kim D, Starkman S, Ovbiagele B, Buck BH, Sanossian N, Vespa PM, Jahan R, Gray R, Neurology, 66(5), S2:A159, 2006
Time to Recanalization for Acute Endovascular Therapies.
Kim D, Liebeskind DS, Starkman S, Ovbiagele B, Vespa PM, Jahan R, Gray R. Duckwiler, Vinnuela F, Sanossian N, Ali LK, Buck BH, Saver JL, Neurology, 66(5), S2:A159, 2006
Acute Pre-Hospital Stroke Care Presenting to a Single Emergency Room.
Kim D, Kaufman S, Starkman S, Saver JL, Eckstein M, Sanossian N, Guzy JM, Liebeskind DS, Neurology, 66(5), S2:A65, 2006
Elevated Calcium Level is Associated with Lesser Stroke Severity and Better Discharge Functional Outcomes in Ischemic Stroke Patients.
Ovbiagele B, Liebeskind DS, Starkman S, Sanossian N, Kim D, Razinia T, Saver JL, Neurology, 66(5), S2:A65, 2006
Diffusion-negative FLAIR Hyperintensity in Cerebral Hyperperfusion Syndrome.
Hawkins V, Sanossian N, Journal of Neuroimaging, 17(1):95, 2007
Left Inferior-posterior Temporal Stroke Causing Incomplete Alexia without Agraphia Syndrome.
Kim F, Sanossian N, Sahai S, Lin T, Christensen T, Journal of Neuroimaging, 17(1):98, 2007
Improved Clinical-Diffusion Mismatch Identification of Penumbral Tissue by Patient Severity Adjustment.
Buck BH, Liebeskind DS, Bang OY, Alger JR, Starkman S, Ovbiagele B, Kim D, Sanossian N, Villablanca JP, Salamon N, Jahan R, Duckwiler GR, Vinnuela F, Vespa PM, Ali LK,..., Stroke, 38(2):465, 2007
Linear Mismatch: Rapid and Reliable Determination of Penumbra in Acute Stroke.
Liebeskind DS, Buck BH, Alger JR, Sanossian N, Bang OY, Kim D, Ovbiagele B, Starkman S, Ali LK, Jahan R, Duckwiler GR, Vinnuela F, Salamon N, Villablanca JP, Saver JL, Stroke, 38(2):486, 2007
Novel MRI Permeability Technique Demonstrates Early Subarachnoid Contrast Leakage in Acute Ischemic Stroke.
Liebeskind DS, Alger JR, Bang OY, Buck BH, Starkman S, Ovbiagele B, Kim D, Sanossian N, Ali LK, Jahan R, Duckwiler GR, Vinnuela F, Salamon N, Villablanca JP, Saver JL, Stroke, 38(2):487, 2007
A Prehospital Stroke Severity Scale Identifies Ischemic Stroke Patients Likely Harboring Persisting Large Vessel Occlusions.
Nazliel B, Starkman S, Liebeskind DS, Kim D, Sanossian N, Ali LK, Buck BH, Villablanca JP, Vinnuela F, Duckwiler GR, Jahan R, Saver JL, Stroke, 38(2):492, 2007
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Lectures

Stroke Prevention: Where Are We Now.
Providence-St. Joseph Medical Center (2008)
Informed Consent in the Field: How Do You Enroll in the Ambulance?
Los Angeles, CA - 2/12/2014
Prehospital Recruitment: FAST-MAG Trial Lessons.
International Stroke Conference, New Orleans, LO
Recent Controversies in Acute Stroke Management.
Kaiser Permanente Internal Medicine Symposium, Anaheim Convention Center
Stroke Prevention 2011: Current Challenges and Recent Achievements.
Stroke Conference, Antelope Valley Medical Center
Complications of Stroke.
USC University Hospital Stroke Training Symposium
Emergency Treatment of Intracerebral Hemorrhage.
UCLA Grand Rounds
New Antithrombotic Agents in Stroke Prevention.
Cedars Sinai Neurology Grand Rounds
Emerging Therapies in Neurocritical Care: Magnesium.
Neurocritical Care Society Annual Meeting, San Francisco
Transcranial Doppler in the Assessment of Cerebrovascular Disease.
USC Department of Neurology Grand Rounds
Stroke Care in 2009: Five High Impact Studies.
University of Florida Vascular Conference
A Rational Approach to Evaluation of the Dizzy Patient.
36th Annual Irving M. Rasgon Family Practice Symposium, Las Vegas NV
Cholesterol, Statins, and Stroke.
Western States Stroke Consortium Meeting, Utah
Cardioembolic Stroke: Epidemiology, Mechanisms, Evaluation & Treatment.
West Los Angeles Veteran’s Affiars Hospital Grand Rounds (2009)
Evaluation of Post-Operative Encephalopathy.
Mount Sinai Med. Ctr. Department of Psychiatry
Statins in Stroke: When to Start Them, When Not to Stop Them.
USC Department of Neurology Grand Rounds
Stroke Subtypes and Neuroimaging.
First World Armenian Neuroscience Symposium, Yerevan, Armenia
Planning an Career in Academic Neurology.
USC Neurology Resident forum
Care of the Acute Stroke Patient.
Rancho Los Amigos Nursing Seminar, Downey
Critical Care Issues in Stroke.
USC Pulmonary and Critical Care Department Grand Rounds (2007)
Transcranial Doppler in Stroke and Beyond.
USC Department of Neurology Grand Rounds
Stroke Science Update.
AHA Get with the Guidelines Workshop, Los Angeles, CA
Neurological Complications of Trauma.
LAC+USC Trauma Surgery Grand Rounds (2006)
An Emerging Paradigm for Acute Stroke Care.
Providence Holy Cross Medical Center Grand Rounds (2006) (2007) (2008)
Stroke is a Medical Emergency.
AHA Western States Affiliate/LAUSD Nursing Symposium, Los Angeles, CA
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