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Biousse V, Najjar RP, Tang Z, Lin MY, Wright DW, Keadey MT, Wong TY, Bruce BB, Milea D, Newman NJ. Application of a Deep Learning System to Detect Papilledema on Nonmydriatic Ocular Fundus Photographs in an Emergency Department. Am J Ophthalmol 2024; 261:199-207. [PMID: 37926337 DOI: 10.1016/j.ajo.2023.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
PURPOSE The Fundus photography vs Ophthalmoscopy Trial Outcomes in the Emergency Department (FOTO-ED) studies showed that ED providers poorly recognized funduscopic findings in patients in the ED. We tested a modified version of the Brain and Optic Nerve Study Artificial Intelligence (BONSAI) deep learning system on nonmydriatic fundus photographs from the FOTO-ED studies to determine if the deep learning system could have improved the detection of papilledema had it been available to ED providers as a real-time diagnostic aid. DESIGN Retrospective secondary analysis of a cohort of patients included in the FOTO-ED studies. METHODS The testing data set included 1608 photographs obtained from 828 patients in the FOTO-ED studies. Photographs were reclassified according to the optic disc classification system used by the deep learning system ("normal optic discs," "papilledema," and "other optic disc abnormalities"). The system's performance was evaluated by calculating the area under the receiver operating characteristic curve (AUC), sensitivity, and specificity using a 1-vs-rest strategy, with reference to expert neuro-ophthalmologists. RESULTS The BONSAI deep learning system successfully distinguished normal from abnormal optic discs (AUC 0.92 [95% confidence interval {CI} 0.90-0.93]; sensitivity 75.6% [73.7%-77.5%] and specificity 89.6% [86.3%-92.8%]), and papilledema from normal and others (AUC 0.97 [0.95-0.99]; sensitivity 84.0% [75.0%-92.6%] and specificity 98.9% [98.5%-99.4%]). Six patients with missed papilledema in 1 eye were correctly identified by the deep learning system as having papilledema in the other eye. CONCLUSIONS The BONSAI deep learning system was able to reliably identify papilledema and normal optic discs on nonmydriatic photographs obtained in the FOTO-ED studies. Our deep learning system has excellent potential as a diagnostic aid in EDs and non-ophthalmology clinics equipped with nonmydriatic fundus cameras. NOTE: Publication of this article is sponsored by the American Ophthalmological Society.
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Affiliation(s)
- Valérie Biousse
- From the Department of Ophthalmology (V.B., M.Y.L., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA; Department of Neurology (V.B., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA.
| | - Raymond P Najjar
- Singapore Eye Research Institute and Singapore National Eye Centre (R.P.N., Z.T., T.Y.W., D.M.), Singapore; Duke-NUS Medical School (R.P.N., T.Y.W., D.M.), National University of Singapore, Singapore; Eye N' Brain Research Group (R.P.N.), Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Center for Innovation and Precision Eye Health (R.P.N.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Zhiqun Tang
- Singapore Eye Research Institute and Singapore National Eye Centre (R.P.N., Z.T., T.Y.W., D.M.), Singapore
| | - Mung Yan Lin
- From the Department of Ophthalmology (V.B., M.Y.L., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA
| | - David W Wright
- Department of Emergency Medicine (D.W.W., M.T.K.), Emory University School of Medicine, Atlanta, Georgia, USA
| | - Matthew T Keadey
- Department of Emergency Medicine (D.W.W., M.T.K.), Emory University School of Medicine, Atlanta, Georgia, USA
| | - Tien Y Wong
- Singapore Eye Research Institute and Singapore National Eye Centre (R.P.N., Z.T., T.Y.W., D.M.), Singapore; Duke-NUS Medical School (R.P.N., T.Y.W., D.M.), National University of Singapore, Singapore; Tsinghua Medicine (T.Y.W.), Tsinghua University, China
| | - Beau B Bruce
- From the Department of Ophthalmology (V.B., M.Y.L., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA; Department of Neurology (V.B., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA; Rollins School of Public Health (B.B.B.), Emory University School of Medicine, Atlanta, Georgia, USA
| | - Dan Milea
- Singapore Eye Research Institute and Singapore National Eye Centre (R.P.N., Z.T., T.Y.W., D.M.), Singapore; Duke-NUS Medical School (R.P.N., T.Y.W., D.M.), National University of Singapore, Singapore
| | - Nancy J Newman
- From the Department of Ophthalmology (V.B., M.Y.L., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA; Department of Neurology (V.B., B.B.B., N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA; Department of Neurological Surgery (N.J.N.), Emory University School of Medicine, Atlanta, Georgia, USA
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Lin MY, Najjar RP, Tang Z, Cioplean D, Dragomir M, Chia A, Patil A, Vasseneix C, Peragallo JH, Newman NJ, Biousse V, Milea D. The BONSAI (Brain and Optic Nerve Study with Artificial Intelligence) deep learning system can accurately identify pediatric papilledema on standard ocular fundus photographs. J AAPOS 2024; 28:103803. [PMID: 38216117 DOI: 10.1016/j.jaapos.2023.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/26/2023] [Accepted: 10/15/2023] [Indexed: 01/14/2024]
Abstract
BACKGROUND Pediatric papilledema often reflects an underlying severe neurologic disorder and may be difficult to appreciate, especially in young children. Ocular fundus photographs are easy to obtain even in young children and in nonophthalmology settings. The aim of our study was to ascertain whether an improved deep-learning system (DLS), previously validated in adults, can accurately identify papilledema and other optic disk abnormalities in children. METHODS The DLS was tested on mydriatic fundus photographs obtained in a multiethnic pediatric population (<17 years) from three centers (Atlanta-USA; Bucharest-Romania; Singapore). The DLS's multiclass classification accuracy (ie, normal optic disk, papilledema, disks with other abnormality) was calculated, and the DLS's performance to specifically detect papilledema and normal disks was evaluated in a one-vs-rest strategy using the AUC, sensitivity and specificity, with reference to expert neuro-ophthalmologists. RESULTS External testing was performed on 898 fundus photographs: 447 patients; mean age, 10.33 (231 patients ≤10 years of age; 216, 11-16 years); 558 normal disks, 254 papilledema, 86 other disk abnormalities. Overall multiclass accuracy of the DLS was 89.6% (range, 87.8%-91.6%). The DLS successfully distinguished "normal" from "abnormal" optic disks (AUC 0.99 [0.98-0.99]; sensitivity, 87.3% [84.9%-89.8%]; specificity, 98.5% [97.6%-99.6%]), and "papilledema" from "normal and other" (AUC 0.99 [0.98-1.0]; sensitivity, 98.0% [96.8%-99.4%]; specificity, 94.1% (92.4%-95.9%)]. CONCLUSIONS Our DLS reliably distinguished papilledema from normal optic disks and other disk abnormalities in children, suggesting it could be utilized as a diagnostic aid for the assessment of optic nerve head appearance in the pediatric age group.
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Affiliation(s)
- Mung Yan Lin
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Raymond P Najjar
- Visual Neuroscience Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Duke-NUS Medical School, Singapore; Center for Innovation & Precision Eye Health, Department of Ophthalmology and Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, Singapore
| | - Zhiqun Tang
- Visual Neuroscience Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | | | | | - Audrey Chia
- Duke-NUS Medical School, Singapore; Center for Innovation & Precision Eye Health, Department of Ophthalmology and Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Paediatric and Strabismus Service, Singapore National Eye Centre, Singapore; Myopia Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Ajay Patil
- Department of Ophthalmology, University Hospitals Birmingham, Birmingham, England, United Kingdom
| | - Caroline Vasseneix
- Visual Neuroscience Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Jason H Peragallo
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Nancy J Newman
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia
| | - Valérie Biousse
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
| | - Dan Milea
- Visual Neuroscience Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Duke-NUS Medical School, Singapore; Angers University Hospital, Angers, France; University of Copenhagen, Denmark; Rothschild Foundation Hospital, Paris, France; Neuro-Ophthalmology Department, Singapore National Eye Centre, Singapore.
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Cardoso D, Bezerra S, Soares-dos-Reis R, Sá MJ, Guimarães J. Optic neuropathy diagnosis in the emergency room - retrospective observational study of the last 18 years. Eur J Ophthalmol 2024; 34:267-280. [PMID: 37218168 PMCID: PMC10757394 DOI: 10.1177/11206721231173005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 04/06/2023] [Indexed: 05/24/2023]
Abstract
INTRODUCTION Optic neuropathies (ON), a broad spectrum of disorders of the optic nerve, are a frequent cause of visual loss, presenting either in isolation or associated to neurological or systemic disorders. They are often first evaluated in the Emergency Room (ER) and a rapid determination of the etiology is imperative for implementing timely and appropriate treatment. We aim to describe ER demographic data and clinical characteristics, as well as the performed imaging exams, of patients subsequently hospitalized and diagnosed with ON. Furthermore, we seek to explore the accuracy of ER discharge diagnosis and evaluate possible predictive factors that may influence it. METHODS We retrospectively reviewed the medical records of 192 patients admitted to the ward of the Neurology Department of Centro Hospitalar Universitário São João (CHUSJ), with a discharge diagnosis of ON. Subsequently, we selected those admitted from the ER, with clinical, laboratory and imaging data, between January 2004 and December 2021. RESULTS We included 171 patients. All participants were discharged from the ER and admitted in the ward with a main diagnostic suspicion of ON. Patients were stratified according to suspected etiology at the time of discharge: 99 inflammatory (57.9%), 38 ischemic (22.2%), 27 unspecified (15.8%) and 7 other (4.1%). By comparing with current follow-up diagnosis, 125 patients had an accurate ER diagnosis category (73.1%), 27 had an ON diagnosis of unspecified etiology that was defined only during follow-up (15.8%) and 19 had an inaccurate diagnosis category (11.1%). Diagnostic change was more common with ER ischemic diagnosis (21.1%) compared to inflammatory diagnosis (8.1%) (p = 0.034). CONCLUSIONS Our study reveals that most patients with ON can be accurately diagnosed in the ER through clinical history neurological and ophthalmological evaluation.
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Affiliation(s)
- Daniel Cardoso
- Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Sofia Bezerra
- Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Ricardo Soares-dos-Reis
- Faculty of Medicine of the University of Porto, Porto, Portugal
- Department of Neurology, Centro Hospitalar de São João (CHUSJ), Porto, Portugal
- i3S - Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
| | - Maria José Sá
- Department of Neurology, Centro Hospitalar de São João (CHUSJ), Porto, Portugal
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Joana Guimarães
- Faculty of Medicine of the University of Porto, Porto, Portugal
- Department of Neurology, Centro Hospitalar de São João (CHUSJ), Porto, Portugal
- Center for Drug Discovery and Innovative Medicines (MedInUP), University of Porto, Portugal
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Okrent Smolar AL, Ray HJ, Dattilo M, Bouthour W, Berman G, Peragallo JH, Kedar S, Pendley AM, Greene JG, Keadey MT, Wright DW, Bruce BB, Newman NJ, Biousse V. Neuro-ophthalmology Emergency Department and Inpatient Consultations at a Large Academic Referral Center. Ophthalmology 2023; 130:1304-1312. [PMID: 37544433 DOI: 10.1016/j.ophtha.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023] Open
Abstract
PURPOSE Prompt neuro-ophthalmology consultation prevents diagnostic errors and improves patient outcomes. The scarcity of neuro-ophthalmologists means that the increasing outpatient demand cannot be met, prompting many emergency department (ED) referrals by non-neuro-ophthalmologists. We describe our quaternary care institution's ED and inpatient neuro-ophthalmology consultation patterns and patient outcomes. DESIGN Prospective observational study. PARTICIPANTS Consecutive neuro-ophthalmology ED and inpatient consultation requests over 1 year. METHODS We collected patient demographics, distance traveled, insurance status, referring provider details, consultation question, final diagnosis, complexity of consultation, time of consultation, and need for outpatient follow-up. MAIN OUTCOME MEASURES Consultation patterns and diagnoses, complexity, and follow-up. RESULTS Of 494 consecutive adult ED and inpatient neuro-ophthalmology consultations requested over 1 year, 241 of 494 consultations (49%) occurred at night or during weekends. Of ED consultations (322 of 494 [65%]), 127 of 322 consultations (39%) occurred during weekdays, 126 of 322 consultations (39%) occurred on weeknights, and 69 of 322 consultations (22%) occurred on weekends or holidays. Of 322 ED consultations, 225 of 322 consultations (70%) were patients who initially sought treatment in the ED with a neuro-ophthalmic chief symptom. Of the 196 patients sent to the ED by a health care professional, 148 patients (148/196 [76%]) were referred by eye care specialists (74 optometrists and 74 ophthalmologists). The most common ED referral questions were for papilledema (75 of 322 [23%]) and vision loss (72 of 322 [22%]). A total of 219 of 322 patients (68%) received a final active neuro-ophthalmic diagnosis, 222 of 322 patients (69%) were cases of high or very high complexity, and 143 of 322 patients (44%) required admission. Inpatient consultations (n = 172) were requested most frequently by hospitalists, including neurologists (71 of 172 [41%]) and oncologists (20 of 172 [12%]) for vision loss (43 of 172 [25%]) and eye movement disorders (36 of 172 [21%]) and by neurosurgeons (58 of 172 [33%]) for examination for mass or a preoperative evaluation (19 of 172 [11%]). An active neuro-ophthalmic diagnosis was confirmed in 67% of patients (116 of 172). Outpatient neuro-ophthalmology follow-up was required for 291 of 494 patients (59%). CONCLUSIONS Neuro-ophthalmology consultations are critical to the diagnosis and management in the hospital setting. In the face of a critical shortage of neuro-ophthalmologists, this study highlights the need for technological and diagnostic aids for greater outpatient access. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
| | - Hetal J Ray
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Michael Dattilo
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Walid Bouthour
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Gabriele Berman
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Jason H Peragallo
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Sachin Kedar
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
| | - Andrew M Pendley
- Department of Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - James G Greene
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
| | - Matthew T Keadey
- Department of Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - David W Wright
- Department of Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Beau B Bruce
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Nancy J Newman
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurological Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Valérie Biousse
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Department of Neurology, Emory University School of Medicine, Atlanta, Georgia.
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Dumitrascu OM, English S, Alhayek N, Pahl E, Nord C, Vanderhye V, O'Carroll CB, Demaerschalk BM. Telemedicine for Acute Monocular Visual Loss: A Retrospective Large Telestroke Network Experience. Telemed J E Health 2023; 29:1738-1743. [PMID: 36912816 DOI: 10.1089/tmj.2022.0286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
Introduction: Central retinal artery occlusion (CRAO) is an under-recognized stroke subtype that may benefit from hyperacute reperfusion therapies. We aimed to evaluate the ability of telestroke activations to provide CRAO diagnosis and thrombolysis. Methods: This retrospective observational study investigates all encounters conducted for acute visual loss between 2010 and 2021 in our multicentric Mayo Clinic Telestroke Network. Demographics, time from visual loss to telestroke evaluation, ocular examination, diagnostic, and therapeutic recommendations were collected for CRAO subjects. Results: Out of 9,511, 49 encounters (0.51%) were conducted for an acute ocular complaint. Five patients had possible CRAO, and 4 presented within 4.5 h from symptom onset (range 1.5-5 h). None received thrombolytic therapy. All telestroke physicians recommended ophthalmology consultation. Conclusion: Current telestroke assessment of acute visual loss is suboptimal and patients eligible for acute reperfusion therapies may not be offered treatment. Teleophthalmologic evaluations and advanced ophthalmic diagnostic tools should complement telestroke systems.
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Affiliation(s)
- Oana M Dumitrascu
- Department of Neurology, Mayo Clinic College of Medicine and Science, Scottsdale, Arizona, USA
| | - Stephen English
- Department of Neurology, Mayo Clinic College of Medicine and Science, Jacksonville, Florida, USA
| | - Nour Alhayek
- Department of Neurology, Mayo Clinic College of Medicine and Science, Scottsdale, Arizona, USA
| | - Emily Pahl
- Department of Neurology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Charisse Nord
- Department of Neurology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Vanesa Vanderhye
- Department of Neurology, Mayo Clinic College of Medicine and Science, Scottsdale, Arizona, USA
| | - Cumara B O'Carroll
- Department of Neurology, Mayo Clinic College of Medicine and Science, Scottsdale, Arizona, USA
| | - Bart M Demaerschalk
- Department of Neurology, Mayo Clinic College of Medicine and Science, Scottsdale, Arizona, USA
- Center for Digital Health, Mayo Clinic College of Medicine and Science, Scottsdale, Arizona, USA
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Delgado-Garcia G, Lapidus S, Talero R, Levy M. The patient journey with NMOSD: From initial diagnosis to chronic condition. Front Neurol 2022; 13:966428. [PMID: 36147040 PMCID: PMC9488131 DOI: 10.3389/fneur.2022.966428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/02/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveTo better understand the patient experience with neuromyelitis optica spectrum disorder (NMOSD) through the course of the illness.BackgroundNMOSD is a rare autoimmune disorder that causes recurrent inflammatory attacks of the optic nerve, spinal cord, and brain. Knowledge and awareness of NMOSD in the general medical community are often limited, resulting in potential delays in diagnosis and treatment.Design/methodsWe developed a comprehensive 101-question survey to understand the patient's perspective on their journey from initial presentation to present condition. The survey covered basic demographics, symptoms, medical tests used to reach a diagnosis, and the patient's psychosocial responses to their diagnosis. The survey included questions to determine internal consistency in responses. We shared the survey with members of the Neuromyelitis Optica (NMO) Clinic Facebook group and received responses from 151 patients. All data collected were self-reported and presented as summary statistics.ResultsThe majority of survey responses were from patients who were female (83%) and White (76%), Asian (7%), or African American (7%). Initial symptoms of disease included fatigue, pain, stiffness/spasticity, bladder and bowel dysfunction, cognitive/emotional symptoms, and visual disturbances. Initial reactions to NMOSD diagnosis were frequently fear, anxiety, and/or depression. Mean (SD) time to diagnosis was 2.2 (3.2) years. First contact with a medical professional was felt to be not helpful or somewhat helpful for many patients (71%), in part due to uncertain diagnosis and/or treatment. However, once referred to specialists (primarily neurologists), the majority of patients (87%) reported finding a professional who could help. Tests leading to diagnosis included magnetic resonance imaging, lumbar puncture, and blood tests for autoantibodies including aquaporin-4 (AQP4) and myelin oligodendrocyte glycoprotein (MOG). While approximately 30% of patients still felt challenged for a variety of reasons, most patients reported that having a diagnosis and being under the care of a specialist contributed to a comprehensive plan with hope for their future.ConclusionsThe NMOSD patient journey frequently begins with anxiety, fear, and frustration. Finding the right specialist and identifying appropriate screening tests can lead to earlier diagnosis and progression toward better patient outcomes.
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Affiliation(s)
- Guillermo Delgado-Garcia
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Centro de Investigacion y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autonoma de Nuevo Leon, Monterrey, Mexico
| | - Sheryl Lapidus
- Patient Advocacy, Horizon Therapeutics, Deerfield, IL, United States
| | - Rosa Talero
- Patient at Neuromyelitis Optica Clinic and Research Laboratory, Massachusetts General Hospital, Boston, MA, United States
| | - Michael Levy
- Neuromyelitis Optica Clinic and Research Laboratory, Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, United States
- *Correspondence: Michael Levy
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