Biography Dr. Nerissa Ko is neurointensivist, a neurologist with specialized training in the care of patients in the intensive care unit with neurological diseases. She also has specialty training to care for patients with cerebrovascular diseases. Dr. Ko earned her medical degree at John A. Burns School of Medicine at the University of Hawaii, and completed a residency in neurology, followed by fellowships in neurocritical care and vascular neurology at UCSF. She is board certified in both vascular neurology and neurocritical care. In 2002, she joined the UCSF Neurovascular Service, where she is now assistant director and a principle attending at Moffitt-Long hospitals. Dr. Ko sees patients for consultation on an outpatient basis as well for stroke and complex vascular diseases such as brain aneurysms and arteriovenous malformations. Dr. Ko's research interests include: * Clinical outcome following subarachnoid hemorrhage * Cerebral blood flow measurement using radioactive Xenon * Quantitative perfusion imaging for cerebrovascular diseases Education 2017 - Diversity, Equity, and Inclusion Champion Training, University of California Publications Association of Quality of Life Domains and Clinical Symptoms in Patients With Familial Cerebral Cavernous Malformation. Tsang C, Nelson J, Vassar R, Ko NU, McCulloch C, Smith ER, Vadivelu S, Akers A, Lee C, Zabramski J, Torbey MT, Awad IA, Kim H, Brain Vascular Malformation Consortium CCM Investigators Journal of the American Heart Association . Aug 29, 2025 Oxygen Extraction Fraction on Baseline MRI Predicts Infarction Growth in Successfully Reperfused Patients. Asghariahmadabad M, Ismail A, Metanat P, Tavakkol E, Bahr-Hosseini M, Szeder V, Colby GP, Saver JL, Yedavalli VS, Smith WS, Ko N, Kim AS, Halabi C, Savastano LE, Saloner D, Cooke DL, Hetts SW, Amans MR, Narsinh KH, Josephson SA, Hess CP, Liebeskind DS, Nael K Stroke . Aug 4, 2025 Abstract TMP88: Clinical Utility of Genetic Testing in Pediatric and Young Adult Hemorrhagic Stroke and Cerebrovascular Malformations. Rachel Vassar, Joseph Shieh, Ethan Winkler, Shantel Weinsheimer, Daniel Cooke, Steven Hetts, Nerissa Ko, Christine Fox, Heather Fullerton, Helen Kim Stroke . Feb 1, 2025 Abstract TP343: Co-Expression Modules In The Periphreal Blood Transcriptome Following Subarachnoid Hemorrhage Associate With 90-Day Outcome. Bodie Knepp, Garreck Lenz, Heather Hull, Nerissa Ko, Glen Jickling, H Choi, Bradley Ander, Frank Sharp, Boryana Stamova Stroke . Feb 1, 2025 Abstract WP30: Detection of Somatic Mutations in Brain Arteriovenous Malformation Patients Using Non-Invasive Cell-Free DNA Screening. Isabella Wetzka, Damian Sanchez, Shubhang Bhalla, Jeffrey Nelson, Charles McCulloch, Nerissa Ko, Ethan Winkler, Helen Kim, Shantel Weinsheimer Stroke . Feb 1, 2025 The clinical impact of recent amphetamine exposure in aneurysmal subarachnoid hemorrhage patients. Vitt JR, Cheng RC, Chung J, Caton T, Zhou B, Ko N, Meisel K, Amorim E Frontiers in neurology . Jan 7, 2025 Addressing the Evidence Gap in Aneurysmal Subarachnoid Hemorrhage: The Need for a Pragmatic Randomized Trial Platform. Kamel H, Suarez JI, Connolly ES, Amin-Hanjani S, Mack WT, Chou SH, Busl KM, Derdeyn CP, Dangayach NS, Elm JE, Beall J, Ko NU Stroke . Jul 25, 2024 Abstract TP6: Identification of Circulating Epigenetic Biomarkers for Seizure in Brain Arteriovenous Malformation by Methylome Profiling. Peter Park, Jeffrey Nelson, Christine K Fox, Adam Numis, Nerissa Ko, Ethan Winkler, Charles McCulloch, Helen Kim, Shantel Weinsheimer Stroke . Feb 1, 2024 Response to Comment Regarding the 2023 Guideline for the Management of Patients With Aneurysmal Subarachnoid Hemorrhage. Hoh BL, Ko NU Stroke . Nov 27, 2023 2023 Guideline for the Management of Patients With Aneurysmal Subarachnoid Hemorrhage: A Guideline From the American Heart Association/American Stroke Association. Hoh BL, Ko NU, Amin-Hanjani S, Chou SH-Y, Cruz-Flores S, Dangayach NS, Derdeyn CP, Du R, Hänggi D, Hetts SW, Ifejika NL, Johnson R, Keigher KM, Leslie-Mazwi TM, Lucke-Wold B, Rabinstein AA, Robicsek SA, Stapleton CJ, Suarez JI, Tjoumakaris SI, Welch BG Stroke . May 22, 2023 The Clinical Impact of Recent Methamphetamine Exposure in Aneurysmal Subarachnoid Patients. Vitt JR, Cheng RC, Chung J, Canton MT, Zhou B, Ko N, Meisel K, Amorim E Research square . Mar 31, 2023 Abstract 52: Prevalence Of Somatic Activating Kras Mutations In Pediatric And Adult Sporadic Brain Arteriovenous Malformations. Ethan A Winkler, Joseph Garcia, Cynthia Tsang, Jeffrey Nelson, Charles McCulloch, Shantel Weinsheimer, Christine K Fox, Heather Fullerton, Nerissa Ko, Hua Su, Tomasz Nowakowski, Daniel L Cooke, Steven Hetts, Ekin Guney, MELIKE PEKMEZCI, Tarik Tihan, Michael Lawton, Adib Abla, Nalin Gupta, Helen Kim Stroke . Feb 1, 2023 Intracranial Hemorrhage Rate and Lesion Burden in Patients With Familial Cerebral Cavernous Malformation. Weinsheimer S, Nelson J, Abla AA, Ko NU, Tsang C, Okoye O, Zabramski JM, Akers A, Zafar A, Mabray MC, Hart BL, Morrison L, McCulloch CE, Kim H, Brain Vascular Malformation Consortium Cerebral Cavernous Malformation Investigator Group * Journal of the American Heart Association . Jan 25, 2023 Intracranial Aneurysm Classifier Using Phenotypic Factors: An International Pooled Analysis. Morel S, Hostettler IC, Spinner GR, Bourcier R, Pera J, Meling TR, Alg VS, Houlden H, Bakker MK, Van't Hof F, Rinkel GJE, Foroud T, Lai D, Moomaw CJ, Worrall BB, Caroff J, Constant-Dits-Beaufils P, Karakachoff M, Rimbert A, Rouchaud A, Gaal-Paavola EI, Kaukovalta H, Kivisaari R, Laakso A, Jahromi BR, Tulamo R, Friedrich CM, Dauvillier J, Hirsch S, Isidor N, Kulcsàr Z, Lövblad KO, Martin O, Machi P, Mendes Pereira V, Rüfenacht D, Schaller K, Schilling S, Slowik A, Jaaskelainen JE, von Und Zu Fraunberg M, Jiménez-Conde J, Cuadrado-Godia E, Soriano-Tárraga C, Millwood IY, Walters RG, Kim H, Redon R, Ko NU, Rouleau GA, Lindgren A, Niemelä M, Desal H, Woo D, Broderick JP, Werring DJ, Ruigrok YM, Bijlenga P Journal of personalized medicine . Aug 30, 2022 Endovascular Biopsy for Detection of Somatic Mosaicism in Human Fusiform Cerebral Aneurysms. Joseph H. Garcia, Ethan A. Winkler, Kerstin Müller, Evan Kao, Kazim Narsinh, Nerissa Ko, Patricia Cornett, Adib A. Abla, Joseph T. Shieh, Daniel L. Cooke Stroke Vascular and Interventional Neurology . Jul 18, 2022 Geometric and Morphologic Features of Ruptured Intracranial Aneurysms Associated with Methamphetamine Use. Caton MT, Vitt J, Smith ER, Cooke D, Meisel K, Ko N, Amorim E World neurosurgery . May 10, 2022 Endovascular Therapy for Intracranial Giant Cell Arteritis : Systematic Review, Technical Considerations and the Effect of Intra-arterial Calcium Channel Blockers. Caton MT, Mark IT, Narsinh KH, Baker A, Cooke DL, Hetts SW, Dowd CF, Halbach VV, Higashida RT, Ko NU, Chung SA, Amans MR Clinical neuroradiology . May 3, 2022 Maximizing Brain Health After Hemorrhagic Stroke: Bugher Foundation Centers of Excellence. Sheth KN, Anderson CD, Biffi A, Dlamini N, Falcone GJ, Fox CK, Fullerton HJ, Greenberg SM, Hemphill JC, Kim A, Kim H, Ko NU, Roland JL, Sansing LH, van Veluw SJ, Rosand J Stroke . Feb 3, 2022 Proceedings of the First Curing Coma Campaign NIH Symposium: Challenging the Future of Research for Coma and Disorders of Consciousness. Claassen J, Akbari Y, Alexander S, Bader MK, Bell K, Bleck TP, Boly M, Brown J, Chou SH, Diringer MN, Edlow BL, Foreman B, Giacino JT, Gosseries O, Green T, Greer DM, Hanley DF, Hartings JA, Helbok R, Hemphill JC, Hinson HE, Hirsch K, Human T, James ML, Ko N, Kondziella D, Livesay S, Madden LK, Mainali S, Mayer SA, McCredie V, McNett MM, Meyfroidt G, Monti MM, Muehlschlegel S, Murthy S, Nyquist P, Olson DM, Provencio JJ, Rosenthal E, Sampaio Silva G, Sarasso S, Schiff ND, Sharshar T, Shutter L, Stevens RD, Vespa P, Videtta W, Wagner A, Ziai W, Whyte J, Zink E, Suarez JI, Curing Coma Campaign Neurocritical care . Jul 8, 2021 Somatic mosaicism in the MAPK pathway in sporadic brain arteriovenous malformation and association with phenotype. Gao S, Nelson J, Weinsheimer S, Winkler EA, Rutledge C, Abla AA, Gupta N, Shieh JT, Cooke DL, Hetts SW, Tihan T, Hess CP, Ko N, Walcott BP, McCulloch CE, Lawton MT, Su H, Pawlikowska L, Kim H Journal of neurosurgery . Jul 2, 2021 Proof-of-concept single-arm trial of bevacizumab therapy for brain arteriovenous malformation. Muster R, Ko N, Smith W, Su H, Dickey MA, Nelson J, McCulloch CE, Sneed PK, Clarke JL, Saloner DA, Eisenmenger L, Kim H, Cooke DL BMJ neurology open . Mar 17, 2021 Abstract P42: Genetic Variants Associated With Vasospasm Following Aneurysmal Subarachnoid Hemorrhage. Shantel M Weinsheimer, Matthew D Alexander, Jeffrey Nelson, Daniel L Cooke, Steven W Hetts, Charles E McCulloch, Helen Kim, Nerissa U Ko Stroke . Mar 1, 2021 Maternal and Fetal Outcomes in Women with Brain Arteriovenous Malformation Rupture during Pregnancy. Yan KL, Ko NU, Hetts SW, Weinsheimer S, Abla AA, Lawton MT, Kim H Cerebrovascular diseases (Basel, Switzerland) . Feb 26, 2021 International Practice Variability in Treatment of Aneurysmal Subarachnoid Hemorrhage. de Winkel J, van der Jagt M, Lingsma HF, Roozenbeek B, Calvillo E, Chou SH, Dziedzic PH, Etminan N, Huang J, Ko NU, Loch MacDonald R, Martin RL, Potu NR, Venkatasubba Rao CP, Vergouwen MDI, Suarez JI Journal of clinical medicine . Feb 14, 2021 Author Correction: Genome-wide association study of intracranial aneurysms identifies 17 risk loci and genetic overlap with clinical risk factors. Bakker MK, van der Spek RAA, van Rheenen W, Morel S, Bourcier R, Hostettler IC, Alg VS, van Eijk KR, Koido M, Akiyama M, Terao C, Matsuda K, Walters RG, Lin K, Li L, Millwood IY, Chen Z, Rouleau GA, Zhou S, Rannikmäe K, Sudlow CLM, Houlden H, van den Berg LH, Dina C, Naggara O, Gentric JC, Shotar E, Eugène F, Desal H, Winsvold BS, Børte S, Johnsen MB, Brumpton BM, Sandvei MS, Willer CJ, Hveem K, Zwart JA, Verschuren WMM, Friedrich CM, Hirsch S, Schilling S, Dauvillier J, Martin O, HUNT All-In Stroke, China Kadoorie Biobank Collaborative Group, BioBank Japan Project Consortium, ICAN Study Group, CADISP Group, Genetics and Observational Subarachnoid Haemorrhage (GOSH) Study investigators, International Stroke Genetics Consortium (ISGC), Jones GT, Bown MJ, Ko NU, Kim H, Coleman JRI, Breen G, Zaroff JG, Klijn CJM, Malik R, Dichgans M, Sargurupremraj M, Tatlisumak T, Amouyel P, Debette S, Rinkel GJE, Worrall BB, Pera J, Slowik A, Gaál-Paavola EI, Niemelä M, Jääskeläinen JE, von Und Zu Fraunberg M, Lindgren A, Broderick JP, Werring DJ, Woo D, Redon R, Bijlenga P, Kamatani Y, Veldink JH, Ruigrok YM Nature genetics . Feb 1, 2021 Chapter 10 Cardiac Manifestations of Acute Neurologic Lesions. Chung-Huan Sun, Nerissa U. Ko . Jan 1, 2021 NEWTON-2 Cisternal (Nimodipine Microparticles to Enhance Recovery While Reducing Toxicity After Subarachnoid Hemorrhage): A Phase 2, Multicenter, Randomized, Open-Label Safety Study of Intracisternal EG-1962 in Aneurysmal Subarachnoid Hemorrhage. Macdonald RL, Hänggi D, Ko NU, Darsaut TE, Carlson AP, Wong GK, Etminan N, Mayer SA, Aldrich EF, Diringer MN, Ng D, Strange P, Bleck T, Grubb R, Suarez JI Neurosurgery . Dec 15, 2020 Genome-wide association study of intracranial aneurysms identifies 17 risk loci and genetic overlap with clinical risk factors. Bakker MK, van der Spek RAA, van Rheenen W, Morel S, Bourcier R, Hostettler IC, Alg VS, van Eijk KR, Koido M, Akiyama M, Terao C, Matsuda K, Walters RG, Lin K, Li L, Millwood IY, Chen Z, Rouleau GA, Zhou S, Rannikmäe K, Sudlow CLM, Houlden H, van den Berg LH, Dina C, Naggara O, Gentric JC, Shotar E, Eugène F, Desal H, Winsvold BS, Børte S, Johnsen MB, Brumpton BM, Sandvei MS, Willer CJ, Hveem K, Zwart JA, Verschuren WMM, Friedrich CM, Hirsch S, Schilling S, Dauvillier J, Martin O, HUNT All-In Stroke, China Kadoorie Biobank Collaborative Group, BioBank Japan Project Consortium, ICAN Study Group, CADISP Group, Genetics and Observational Subarachnoid Haemorrhage (GOSH) Study investigators, International Stroke Genetics Consortium (ISGC), Jones GT, Bown MJ, Ko NU, Kim H, Coleman JRI, Breen G, Zaroff JG, Klijn CJM, Malik R, Dichgans M, Sargurupremraj M, Tatlisumak T, Amouyel P, Debette S, Rinkel GJE, Worrall BB, Pera J, Slowik A, Gaál-Paavola EI, Niemelä M, Jääskeläinen JE, von Und Zu Fraunberg M, Lindgren A, Broderick JP, Werring DJ, Woo D, Redon R, Bijlenga P, Kamatani Y, Veldink JH, Ruigrok YM Nature genetics . Nov 16, 2020 mRNA Expression Profiles from Whole Blood Associated with Vasospasm in Patients with Subarachnoid Hemorrhage. Xu H, Stamova B, Ander BP, Waldau B, Jickling GC, Sharp FR, Ko NU Neurocritical care . Aug 1, 2020 Intracranial Pressure Monitoring via External Ventricular Drain: Are We Waiting Long Enough Before Recording the Real Value? Liu X, Griffith M, Jang HJ, Ko N, Pelter MM, Abba J, Vuong M, Tran N, Bushman K, Hu X The Journal of neuroscience nursing : journal of the American Association of Neuroscience Nurses . Feb 1, 2020 The Future of Neurocritical Care Research: Proceedings and Recommendations from the Fifth Neurocritical Care Research Network Conference. Hocker S, Shah S, Vespa P, Provencio JJ, Calvillo E, Olson DM, Venkatasubba Rao CP, Hemphill JC, Helbok R, Human T, Kamel H, Madden LK, Nyquist P, Bentho O, O'Phelan K, Lewin JJ, Alexander S, Ziai W, Chou SH, Rincon F, McNett M, Ko N, Zink B, Rhoney D, Diringer MN, Stevens R, Robertson CS, Sampaio G, Shutter LA, Ling G, Rehman M, Mahmoud SH, Yeager S, Livesay S, Suarez JI, attendees of the 5th Neurocritical Care Research Network Conference Neurocritical care . Feb 1, 2020 Morphological changes of intracranial pressure quantifies vasodilatory effect of verapamil to treat cerebral vasospasm. Liu X, Vitt JR, Hetts SW, Gudelunas K, Ho N, Ko N, Hu X Journal of neurointerventional surgery . Jan 20, 2020 Aneurysmal Subarachnoid Hemorrhage: Risk Assessment and Perioperative Complications. Chanhung Z. Lee, Pekka Talke, Nerissa U. Ko Essentials of Neurosurgical Anesthesia \u0026 Critical Care . Jan 1, 2020 Standards for Studies of Neurological Prognostication in Comatose Survivors of Cardiac Arrest: A Scientific Statement From the American Heart Association. Geocadin RG, Callaway CW, Fink EL, Golan E, Greer DM, Ko NU, Lang E, Licht DJ, Marino BS, McNair ND, Peberdy MA, Perman SM, Sims DB, Soar J, Sandroni C, American Heart Association Emergency Cardiovascular Care Committee Circulation . Jul 11, 2019 Common Data Elements for Subarachnoid Hemorrhage and Unruptured Intracranial Aneurysms: Recommendations from the Working Group on Subject Characteristics. Bijlenga P, Morita A, Ko NU, Mocco J, Morel S, Murayama Y, Wermer MJH, Brown RD, Unruptured Cerebral Aneurysms and SAH CDE Project Investigators Neurocritical care . Jun 1, 2019 Abstract 46: RNA Expression Profiles From Whole Blood Associated With Vasospasm in Patients With Subarachnoid Hemorrhage. Frank R Sharp, Huichun Xu, Bradley P Ander, Boryana Stamova, Ben Waldau, Glen C Jickling, Nerissa Ko Stroke . Feb 1, 2019 Abstract TP540: Effects of Stimulant Use on the Temporal Course of Vasospasm in Aneurysmal Subarachnoid Hemorrhage. Roger Cheng, Karl Meisel, Nerissa Ko Stroke . Feb 1, 2019 Abstract TP581: Maternal and Fetal Outcomes in Women With Brain Arteriovenous Malformation Rupture During Pregnancy. Kimberly Yan, Nerissa U Ko, Steven Hetts, Adib A Abla, Michael T Lawton, Helen Kim Stroke . Feb 1, 2019 Continuous monitoring of cerebrovascular reactivity through pulse transit time and intracranial pressure. Liu X, Gadhoumi K, Xiao R, Tran N, Smielewski P, Czosnyka M, Hetts SW, Ko N, Hu X Physiological measurement . Jan 23, 2019 Abstract WP426: Does Intracerebral Hemorrhage in Brain Arteriovenous Malformation Share Genetic Risk Factors With Primary Intracerebral Hemorrhage?. Jeffrey Nelson, Nasrine Bendjilali, Shantel M Weinsheimer, Charles E McCulloch, Nerissa U Ko, Jonathan G Zaroff, Michael T Lawton, Ludmila Pawlikowska, Helen Kim Stroke . Jan 22, 2018 Numerical Investigation of Vasospasm Detection by Extracranial Blood Velocity Ratios. Ryu J, Ko N, Hu X, Shadden SC Cerebrovascular diseases (Basel, Switzerland) . Feb 28, 2017 Abstract TP445: Bevacizumab Therapy for Brain Arteriovenous Malformations. Daniel L Cooke, Helen Kim, Wade Smith, Michael Lawton, Jennifer Clarke, David Saloner, Nerissa Ko, Patricia Sneed, Charles McCulloch, Hua Su Stroke . Feb 1, 2017 Characterization of Shape Differences Among ICP Pulses Predicts Outcome of External Ventricular Drainage Weaning Trial. Arroyo-Palacios J, Rudz M, Fidler R, Smith W, Ko N, Park S, Bai Y, Hu X Neurocritical care . Dec 1, 2016 Shared Genetic Risk Factors of Intracranial, Abdominal, and Thoracic Aneurysms. van 't Hof FN, Ruigrok YM, Lee CH, Ripke S, Anderson G, de Andrade M, Baas AF, Blankensteijn JD, Böttinger EP, Bown MJ, Broderick J, Bijlenga P, Carrell DS, Crawford DC, Crosslin DR, Ebeling C, Eriksson JG, Fornage M, Foroud T, von Und Zu Fraunberg M, Friedrich CM, Gaál EI, Gottesman O, Guo DC, Harrison SC, Hernesniemi J, Hofman A, Inoue I, Jääskeläinen JE, Jones GT, Kiemeney LA, Kivisaari R, Ko N, Koskinen S, Kubo M, Kullo IJ, Kuivaniemi H, Kurki MI, Laakso A, Lai D, Leal SM, Lehto H, LeMaire SA, Low SK, Malinowski J, McCarty CA, Milewicz DM, Mosley TH, Nakamura Y, Nakaoka H, Niemelä M, Pacheco J, Peissig PL, Pera J, Rasmussen-Torvik L, Ritchie MD, Rivadeneira F, van Rij AM, Santos-Cortez RL, Saratzis A, Slowik A, Takahashi A, Tromp G, Uitterlinden AG, Verma SS, Vermeulen SH, Wang GT, Aneurysm Consortium; Vascular Research Consortium of New Zealand, Han B, Rinkel GJ, de Bakker PI Journal of the American Heart Association . Jul 14, 2016 Continuous Qualitative Electroencephalography as a Noninvasive Neuromonitor. Threlkeld ZD, Kottapally M, Aysenne A, Ko N The Neurohospitalist . Apr 5, 2016 High resolution imaging of the intracranial vessel wall at 3 and 7 T using 3D fast spin echo MRI. Zhu C, Haraldsson H, Tian B, Meisel K, Ko N, Lawton M, Grinstead J, Ahn S, Laub G, Hess C, Saloner D Magma (New York, N.Y.) . Mar 5, 2016 Frequency and Risk Factors for Cerebral Arterial Disease in a HIV/AIDS Neuroimaging Cohort. Edwards NJ, Grill MF, Choi HA, Ko NU Cerebrovascular diseases (Basel, Switzerland) . Jan 12, 2016 Cerebral vasoreactivity is impaired in treated, virally suppressed HIV-infected individuals. Chow FC, Boscardin WJ, Mills C, Ko N, Carroll C, Price RW, Deeks S, Sorond FA, Hsue PY AIDS (London, England) . Jan 2, 2016 Cranial Accelerometry Can Detect Cerebral Vasospasm Caused by Subarachnoid Hemorrhage. Smith WS, Browne JL, Ko NU Neurocritical care . Dec 1, 2015 Morphological changes in ICP pulse waveform as potential markers for early determination of external ventricular drain clamping trial outcome. Jorge Arroyo Palacios, Maryna Rudz, Richard Fidler, Wade Smith, Nerissa Ko, Marvin Bergsneider, Xiao Hu Fluids and Barriers of the CNS . Dec 1, 2015 Imaging of intracranial hemorrhage: Subarachnoid hemorrhage and its sequelae. Matthew D. Alexander, Nerissa U. Ko, Steven W. Hetts Applied Radiology . Nov 1, 2015 Lessons learned from whole exome sequencing in multiplex families affected by a complex genetic disorder, intracranial aneurysm. Farlow JL, Lin H, Sauerbeck L, Lai D, Koller DL, Pugh E, Hetrick K, Ling H, Kleinloog R, van der Vlies P, Deelen P, Swertz MA, Verweij BH, Regli L, Rinkel GJ, Ruigrok YM, Doheny K, Liu Y, Broderick J, Foroud T, FIA Study Investigators PloS one . Mar 24, 2015 Extent of collateralization predicting symptomatic cerebral vasospasm among pediatric patients: correlations among angiography, transcranial Doppler ultrasonography, and clinical findings. Moftakhar P, Cooke DL, Fullerton HJ, Ko NU, Amans MR, Narvid JA, Dowd CF, Higashida RT, Halbach VV, Hetts SW Journal of neurosurgery. Pediatrics . Jan 2, 2015 Spontaneous echo-contrast in the internal jugular veins of patients with ischemic stroke. Choi JC, Oh YH, Kim JG, Kim HJ, Kong MH, Paeng DG, Ko NU, Easton JD Journal of clinical ultrasound : JCU . Oct 27, 2014 Genome-wide association study of intracranial aneurysm identifies a new association on chromosome 7. Foroud T, Lai D, Koller D, Van't Hof F, Kurki MI, Anderson CS, Brown RD, Connolly ES, Eriksson JG, Flaherty M, Fornage M, von Und Zu Fraunberg M, Gaál EI, Laakso A, Hernesniemi J, Huston J, Jääskeläinen JE, Kiemeney LA, Kivisaari R, Kleindorfer D, Ko N, Lehto H, Mackey J, Meissner I, Moomaw CJ, Mosley TH, Moskala M, Niemelä M, Palotie A, Pera J, Rinkel G, Ripke S, Rouleau G, Ruigrok Y, Sauerbeck L, Slowik A, Vermeulen SH, Woo D, Worrall BB, Broderick J, Familial Intracranial Aneurysm Study Investigators Stroke . Sep 25, 2014 Hemorrhage rates and risk factors in the natural history course of brain arteriovenous malformations. Rutledge WC, Ko NU, Lawton MT, Kim H Translational stroke research . Jun 15, 2014 Abstract T P356: Predictors of Depression 6 Months After Aneurysmal Subarachnoid Hemorrhage. Keiko A Fukuda, Randall T Higashida, Michael T Lawton, Wade S Smith, Nerissa U Ko Stroke . Feb 1, 2014 Chapter 10 Cardiac Manifestations of Acute Neurologic Lesions. Nerissa U. Ko Aminoff\u0027s Neurology and General Medicine . Jan 1, 2014 Multi-wavelength spectrophotometric analysis for detection of xanthochromia in cerebrospinal fluid and accuracy for the diagnosis of subarachnoid hemorrhage. Smith A, Wu AH, Lynch KL, Ko N, Grenache DG Clinica chimica acta; international journal of clinical chemistry . Jun 22, 2013 Increase in Quantitative CBF with Intra-Arterial Verapamil Treatment for Refractory Vasospasm after SAH (P04.084). Keiko Fukuda, Randall Higashida, Michael Lawton, Wade Smith, William Young, Walter Obrist, Nerissa Ko Neurology . Feb 12, 2013 Prevalence and Characterization of Cerebral Vasculopathy in an HIV/AIDS Neuroimaging Cohort (S38.002). Nancy Edwards, Marie Grill, Nerissa Ko Neurology . Feb 12, 2013 Abstract 51: Strict Blood Pressure Control with Intravenous Nicardipine is Associated with Lower Risk of Acute Re-bleeding after Aneurysmal Subarachnoid Hemorrhage. Peyman Shirani, Keiko Fukuda, Lynn Tieu, Randall Higashida, Michael Lawton, Wade Smith, Nerissa Ko Stroke . Feb 1, 2013 Vascular myelopathies. Moftakhar P, Hetts SW, Ko NU Seminars in neurology . Sep 8, 2012 Genome-wide association study of intracranial aneurysms confirms role of Anril and SOX17 in disease risk. Foroud T, Koller DL, Lai D, Sauerbeck L, Anderson C, Ko N, Deka R, Mosley TH, Fornage M, Woo D, Moomaw CJ, Hornung R, Huston J, Meissner I, Bailey-Wilson JE, Langefeld C, Rouleau G, Connolly ES, Worrall BB, Kleindorfer D, Flaherty ML, Martini S, Mackey J, De Los Rios La Rosa F, Brown RD, Broderick JP, FIA Study Investigators Stroke . Sep 6, 2012 Perfusion-CT assessment of blood-brain barrier permeability in patients with aneurysmal subarachnoid hemorrhage. Kishore S, Ko N, Soares BP, Higashida RT, Tong E, Bhogal S, Bredno J, Cheng SC, Wintermark M Journal of neuroradiology = Journal de neuroradiologie . Dec 22, 2011 Gene expression profiling of blood in brain arteriovenous malformation patients. Weinsheimer SM, Xu H, Achrol AS, Stamova B, McCulloch CE, Pawlikowska L, Tian Y, Ko NU, Lawton MT, Steinberg GK, Chang SD, Jickling G, Ander BP, Kim H, Sharp FR, Young WL Translational stroke research . Dec 1, 2011 Elevated BNP is associated with vasospasm-independent cerebral infarction following aneurysmal subarachnoid hemorrhage. Taub PR, Fields JD, Wu AH, Miss JC, Lawton MT, Smith WS, Young WL, Zaroff JG, Ko NU Neurocritical care . Aug 1, 2011 Hypertonic saline versus mannitol for the treatment of elevated intracranial pressure: a meta-analysis of randomized clinical trials. Kamel H, Navi BB, Nakagawa K, Hemphill JC, Ko NU Critical Care Medicine . Mar 1, 2011 A 41-year-old man with new headache and altered mental status. Johnson EC, West TW, Ko NU, Strober JB The Neurohospitalist . Jan 1, 2011 Endovascular treatment of medically refractory cerebral vasospasm following aneurysmal subarachnoid hemorrhage. Jun P, Ko NU, English JD, Dowd CF, Halbach VV, Higashida RT, Lawton MT, Hetts SW AJNR. American journal of neuroradiology . Jul 8, 2010 E-056 Endovascular treatment of medically refractory cerebral vasospasm following aneurysmal subarachnoid hemorrhage. S Hetts, P Jun, N Ko, J English, C Dowd, R Higashida, V Halbach Journal of neurointerventional surgery . Jul 1, 2010 Improvement in intensive care unit outcomes in patients with subarachnoid hemorrhage after initiation of neurointensivist co-management. Josephson SA, Douglas VC, Lawton MT, English JD, Smith WS, Ko NU Journal of neurosurgery . Mar 1, 2010 Ten-year detection rate of brain arteriovenous malformations in a large, multiethnic, defined population. Gabriel RA, Kim H, Sidney S, McCulloch CE, Singh V, Johnston SC, Ko NU, Achrol AS, Zaroff JG, Young WL Stroke . Nov 19, 2009 Common variants in interleukin-1-Beta gene are associated with intracranial hemorrhage and susceptibility to brain arteriovenous malformation. Kim H, Hysi PG, Pawlikowska L, Poon A, Burchard EG, Zaroff JG, Sidney S, Ko NU, Achrol AS, Lawton MT, McCulloch CE, Kwok PY, Young WL Cerebrovascular diseases (Basel, Switzerland) . Dec 18, 2008 Visual grading system for vasospasm based on perfusion CT imaging: comparisons with conventional angiography and quantitative perfusion CT. Wintermark M, Dillon WP, Smith WS, Lau BC, Chaudhary S, Liu S, Yu M, Fitch M, Chien JD, Higashida RT, Ko NU Cerebrovascular diseases (Basel, Switzerland) . Jun 17, 2008 Endothelial nitric oxide synthase polymorphism (-786T->C) and increased risk of angiographic vasospasm after aneurysmal subarachnoid hemorrhage. Ko NU, Rajendran P, Kim H, Rutkowski M, Pawlikowska L, Kwok PY, Higashida RT, Lawton MT, Smith WS, Zaroff JG, Young WL Stroke . Feb 28, 2008 Chapter 10 Cardiac Manifestations of Acute Neurological Lesions. Nerissa U. Ko, Jonathan G. Zaroff Neurology and General Medicine . Jan 1, 2008 Prospective evaluation of multidetector-row CT angiography for the diagnosis of vasospasm following subarachnoid hemorrhage: a comparison with digital subtraction angiography. Chaudhary SR, Ko N, Dillon WP, Yu MB, Liu S, Criqui GI, Higashida RT, Smith WS, Wintermark M Cerebrovascular diseases (Basel, Switzerland) . Dec 11, 2007 Association of tumor necrosis factor-alpha-238G>A and apolipoprotein E2 polymorphisms with intracranial hemorrhage after brain arteriovenous malformation treatment. Achrol AS, Kim H, Pawlikowska L, Trudy Poon KY, McCulloch CE, Ko NU, Johnston SC, McDermott MW, Zaroff JG, Lawton MT, Kwok PY, Young WL Neurosurgery . Oct 1, 2007 Racial/Ethnic differences in longitudinal risk of intracranial hemorrhage in brain arteriovenous malformation patients. Kim H, Sidney S, McCulloch CE, Poon KY, Singh V, Johnston SC, Ko NU, Achrol AS, Lawton MT, Higashida RT, Young WL, UCSF BAVM Study Project Stroke . Aug 2, 2007 Estimation of fusiform intracranial aneurysm growth by serial magnetic resonance imaging. Dispensa BP, Saloner DA, Acevedo-Bolton G, Achrol AS, Jou LD, McCulloch CE, Johnston SC, Higashida RT, Dowd CF, Halbach VV, Ko NU, Lawton MT, Martin AJ, Quinnine N, Young WL Journal of magnetic resonance imaging : JMRI . Jul 1, 2007 Adrenoceptor polymorphisms and the risk of cardiac injury and dysfunction after subarachnoid hemorrhage. Zaroff JG, Pawlikowska L, Miss JC, Yarlagadda S, Ha C, Achrol A, Kwok PY, McCulloch CE, Lawton MT, Ko N, Smith W, Young WL Stroke . May 25, 2006 Apolipoprotein E epsilon 2 is associated with new hemorrhage risk in brain arteriovenous malformations. Pawlikowska L, Poon KY, Achrol AS, McCulloch CE, Ha C, Lum K, Zaroff JG, Ko NU, Johnston SC, Sidney S, Marchuk DA, Lawton MT, Kwok PY, Young WL Neurosurgery . May 1, 2006 Cardiovascular predictors of in-patient mortality after subarachnoid hemorrhage. Yarlagadda S, Rajendran P, Miss JC, Banki NM, Kopelnik A, Wu AH, Ko N, Gelb AW, Lawton MT, Smith WS, Young WL, Zaroff JG Neurocritical care . Jan 1, 2006 Hypernatremia predicts adverse cardiovascular and neurological outcomes after SAH. Fisher LA, Ko N, Miss J, Tung PP, Kopelnik A, Banki NM, Gardner D, Smith WS, Lawton MT, Zaroff JG Neurocritical care . Jan 1, 2006 Predictors of left ventricular regional wall motion abnormalities after subarachnoid hemorrhage. Kothavale A, Banki NM, Kopelnik A, Yarlagadda S, Lawton MT, Ko N, Smith WS, Drew B, Foster E, Zaroff JG Neurocritical care . Jan 1, 2006 Vasospasm after subarachnoid hemorrhage: utility of perfusion CT and CT angiography on diagnosis and management. Wintermark M, Ko NU, Smith WS, Liu S, Higashida RT, Dillon WP AJNR. American journal of neuroradiology . Jan 1, 2006 Plasma B-type natriuretic peptide levels are associated with early cardiac dysfunction after subarachnoid hemorrhage. Tung PP, Olmsted E, Kopelnik A, Banki NM, Drew BJ, Ko N, Lawton MT, Smith W, Foster E, Young WL, Zaroff JG Stroke . Jun 9, 2005 Long-term outcome of endovascular stenting for symptomatic basilar artery stenosis. Yu W, Smith WS, Singh V, Ko NU, Cullen SP, Dowd CF, Halbach VV, Higashida RT Neurology . Mar 22, 2005 Cerebral blood flow changes after endovascular treatment of cerebrovascular stenoses. Ko NU, Achrol AS, Chopra M, Saha M, Gupta D, Smith WS, Higashida RT, Young WL AJNR. American journal of neuroradiology . Mar 1, 2005 Magnetic resonance perfusion tracks 133Xe cerebral blood flow changes after carotid stenting. Ko NU, Achrol AS, Martin AJ, Chopra M, Saloner DA, Higashida RT, Young WL Stroke . Feb 3, 2005 Accuracy of dynamic perfusion CT with deconvolution in detecting acute hemispheric stroke. Wintermark M, Fischbein NJ, Smith WS, Ko NU, Quist M, Dillon WP AJNR. American journal of neuroradiology . Jan 1, 2005 Prevalence and implications of diastolic dysfunction after subarachnoid hemorrhage. Kopelnik A, Fisher L, Miss JC, Banki N, Tung P, Lawton MT, Ko N, Smith WS, Drew B, Foster E, Zaroff J Neurocritical care . Jan 1, 2005 Neurotoxicity of intra-arterial papaverine preserved with chlorobutanol used for the treatment of cerebral vasospasm after aneurysmal subarachnoid hemorrhage. Smith WS, Dowd CF, Johnston SC, Ko NU, DeArmond SJ, Dillon WP, Setty D, Lawton MT, Young WL, Higashida RT, Halbach VV Stroke . Oct 7, 2004 Dynamic perfusion CT: optimizing the temporal resolution and contrast volume for calculation of perfusion CT parameters in stroke patients. Wintermark M, Smith WS, Ko NU, Quist M, Schnyder P, Dillon WP AJNR. American journal of neuroradiology . May 1, 2004 Predictors of neurocardiogenic injury after subarachnoid hemorrhage. Tung P, Kopelnik A, Banki N, Ong K, Ko N, Lawton MT, Gress D, Drew B, Foster E, Parmley W, Zaroff J Stroke . Jan 22, 2004 Brain Trauma, Overview. Nerissa U. Ko, J. Claude Hemphill Encyclopedia of the Neurological Sciences . Jan 1, 2003 Distinguishing intracerebral hemorrhages caused by arteriovenous malformations. Ko NU, Johnston SC, Young WL, Singh V, Klatsky AL Cerebrovascular diseases (Basel, Switzerland) . Jan 1, 2003 The severity of brain injury and female gender predict myocardial necrosis after subarachnoid hemorrhage. Povee P. Tung, Alexander Kopelnik, Nader M. Banki, Kenneth C. Ong, Nerissa U. Ko, Michael T. Lawton, Daryl R. Gress, Barbara Drew, Elyse Foster, William W. Parmley, Jonathan G. Zaroff Journal of the American College of Cardiology . Mar 1, 2002 Potent in vivo antimalarial activity of 3,15-di-O-acetylbruceolide against Plasmodium berghei infection in mice. Kim HS, Shibata Y, Ko N, Ikemoto N, Ishizuka Y, Murakami N, Sugimoto M, Kobayashi M, Wataya Y Parasitology international . Jan 1, 2000 Spontaneous intracranial hypotension resulting in stupor caused by diencephalic compression. Pleasure SJ, Abosch A, Friedman J, Ko NU, Barbaro N, Dillon W, Fishman RA, Poncelet AN Neurology . Jun 1, 1998