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Edlow JA, Singhal AB, Romero JM. Case 18-2024: A 64-Year-Old Woman with the Worst Headache of Her Life. N Engl J Med 2024; 390:2108-2118. [PMID: 38865664 DOI: 10.1056/nejmcpc2402484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Affiliation(s)
- Jonathan A Edlow
- From the Department of Emergency Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School (J.A.E.), and the Departments of Neurology (A.B.S.) and Radiology (J.M.R.), Massachusetts General Hospital and Harvard Medical School - all in Boston
| | - Aneesh B Singhal
- From the Department of Emergency Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School (J.A.E.), and the Departments of Neurology (A.B.S.) and Radiology (J.M.R.), Massachusetts General Hospital and Harvard Medical School - all in Boston
| | - Javier M Romero
- From the Department of Emergency Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School (J.A.E.), and the Departments of Neurology (A.B.S.) and Radiology (J.M.R.), Massachusetts General Hospital and Harvard Medical School - all in Boston
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2
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Montenegro M, Cutrer FM. Cough, Exertional, and Sex Headaches. Neurol Clin 2024; 42:599-614. [PMID: 38575269 DOI: 10.1016/j.ncl.2023.12.012] [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: 04/06/2024]
Abstract
In this article, the authors review the most common presentations of cough and exertional headaches and headaches associated with sexual activity. The authors elaborate on the most commonly described etiologies and identify those which are most critical to treat. The authors outline the recommendations for further evaluation and discuss effective treatment modalities for each headache type.
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Affiliation(s)
- Monique Montenegro
- General Neurology and Headache Division, University of Minnesota Medical School, Minneapolis, MN, USA
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Kaufmann J, Buecke P, Meinel T, Beyeler M, Scutelnic A, Kaesmacher J, Mujanović A, Dobrocky T, Arsany H, Peters N, Z'Graggen W, Jung S, Seiffge D. Frequency of ischaemic stroke and intracranial haemorrhage in patients with reversible cerebral vasoconstriction syndrome (RCVS) and posterior reversible encephalopathy syndrome (PRES) - A systematic review. Eur J Neurol 2024; 31:e16246. [PMID: 38470001 DOI: 10.1111/ene.16246] [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: 07/09/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND Posterior reversible encephalopathy syndrome (PRES) and reversible cerebral vasoconstriction syndrome (RCVS) may cause ischaemic stroke and intracranial haemorrhage. The aim of our study was to assess the frequency of the afore-mentioned outcomes. METHODS We performed a PROSPERO-registered (CRD42022355704) systematic review and meta-analysis accessing PubMed until 7 November 2022. The inclusion criteria were: (1) original publication, (2) adult patients (≥18 years), (3) enrolling patients with PRES and/or RCVS, (4) English language and (5) outcome information. Outcomes were frequency of (1) ischaemic stroke and (2) intracranial haemorrhage, divided into subarachnoid haemorrhage (SAH) and intraparenchymal haemorrhage (IPH). The Cochrane Risk of Bias tool was used. RESULTS We identified 848 studies and included 48 relevant studies after reviewing titles, abstracts and full text. We found 11 studies on RCVS (unselected patients), reporting on 2746 patients. Among the patients analysed, 15.9% (95% CI 9.6%-23.4%) had ischaemic stroke and 22.1% (95% CI 10%-39.6%) had intracranial haemorrhage. A further 20.3% (95% CI 11.2%-31.2%) had SAH and 6.7% (95% CI 3.6%-10.7%) had IPH. Furthermore, we found 28 studies on PRES (unselected patients), reporting on 1385 patients. Among the patients analysed, 11.2% (95% CI 7.9%-15%) had ischaemic stroke and 16.1% (95% CI 12.3%-20.3%) had intracranial haemorrhage. Further, 7% (95% CI 4.7%-9.9%) had SAH and 9.7% (95% CI 5.4%-15%) had IPH. CONCLUSIONS Intracranial haemorrhage and ischaemic stroke are common outcomes in PRES and RCVS. The frequency reported in the individual studies varied considerably.
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Affiliation(s)
- Jana Kaufmann
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Philipp Buecke
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Thomas Meinel
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Morin Beyeler
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Adrian Scutelnic
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Johannes Kaesmacher
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Adnan Mujanović
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Thomas Dobrocky
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Hakim Arsany
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Nils Peters
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine Felix Platter, University of Basel, Basel, Switzerland
- Stroke Center, Hirslanden Clinic, Zurich, Switzerland
| | - Werner Z'Graggen
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
- Department of Neurosurgery, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - Simon Jung
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
| | - David Seiffge
- Department of Neurology, Inselspital University Hospital and University of Bern, Bern, Switzerland
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Jumah A, Albanna AJ, Qureshi M, Malik S. Reversible Cerebral Vasoconstriction Syndrome Secondary to Loperamide Ingestion: A Case Report. Neurohospitalist 2024; 14:186-188. [PMID: 38666269 PMCID: PMC11040623 DOI: 10.1177/19418744231209803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024] Open
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) is a cerebrovascular disorder highlighted by diffuse and multifocal vasoconstriction of the cerebral circulation. This syndrome has been reported to be associated with provoking vasoactive agents, and the identification of such offenders is quite challenging. In our case, the patient's RCVS was caused by the ingestion of loperamide. Although being reported in the cardiac literature, cerebral vasoconstriction due to loperamide has not been reported yet.
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Affiliation(s)
- Ammar Jumah
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | | | - Momina Qureshi
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Shaneela Malik
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
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5
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Prucnal CK, Shappell EF, Wittels KA, Monette DL. A Case of Thunderclap Headache and Neurologic Deficits. J Emerg Med 2024:S0736-4679(24)00086-6. [PMID: 38834390 DOI: 10.1016/j.jemermed.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 03/10/2024] [Indexed: 06/06/2024]
Affiliation(s)
- Christiana K Prucnal
- Department of Emergency Medicine, Harvard Medical School, Boston, Massachusetts; Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Eric F Shappell
- Department of Emergency Medicine, Harvard Medical School, Boston, Massachusetts; Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Kathleen A Wittels
- Department of Emergency Medicine, Harvard Medical School, Boston, Massachusetts; Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Derek L Monette
- Department of Emergency Medicine, Harvard Medical School, Boston, Massachusetts; Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts.
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Gotesman RD, Niznick N, Dewar B, Fergusson DA, Mallick R, Shorr R, Shamy M, Dowlatshahi D. The prevalence of non-contrast CT imaging abnormalities in reversible cerebral vasoconstriction syndrome: A systematic review and meta-analysis. PLoS One 2024; 19:e0295558. [PMID: 38466700 PMCID: PMC10927111 DOI: 10.1371/journal.pone.0295558] [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: 08/03/2023] [Accepted: 11/24/2023] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND Reversible cerebral vasoconstriction syndrome (RCVS) is a syndrome of recurrent thunderclap headaches and reversible vasoconstriction of the cerebral arteries on neuroimaging within 3 months of onset. Initial non-contrast computed tomography (CT) can reveal abnormalities such as ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage (SAH) can be present in patients with RCVS and may delay diagnosis. AIMS We conducted a systematic review and meta-analysis in accordance with the PRISMA guidelines. We aimed to estimate the prevalence of imaging abnormalities on initial non-contrast CT head in adult patients with RCVS. DATA SOURCES & ELIGIBILITY CRITERIA We searched electronic databases including MEDLINE, EMBASE, and the Cochrane Register of Clinical Trials from inception to August 2, 2022. Eligible studies included articles reporting the prevalence of non-contrast CT abnormalities on initial neuroimaging in patients with RCVS, aged 18 and older. Case series, observational studies and clinical trials were included. Data was extracted directly from included papers using a standardized data charting form. RESULTS The search yielded 722 titles with duplicates removed. Twenty studies that included 379 patients with RCVS met inclusion criteria. We classified non-contrast CT abnormalities as either ischemic stroke, ICH, or SAH. We pooled prevalence data using a random effects model with the inverse-variance weighted method. The most common imaging finding was SAH with a pooled prevalence of 24% (95% CI:17%-33%), followed by ICH at 14% (95% CI:8%-22%), and ischemic stroke at 10% (95% CI:7%-14%). The pooled prevalence of any of these imaging abnormalities on initial non-contrast CT was 31% (95% CI:23%-40%). Risk of bias was moderate to very-high-risk for case-series and low-risk for observational studies. CONCLUSION Our review demonstrates that one-third of patients with RCVS will have an abnormality on initial non-contrast CT head, including either an ischemic stroke, ICH, or SAH. These findings highlight the diagnostic challenges of RCVS imaging and contribute to our understanding of this disease.
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Affiliation(s)
| | - Naomi Niznick
- Department of Medicine (Critical Care), The Ottawa Hospital, Ottawa, Canada
| | - Brian Dewar
- Ottawa Hospital Research Institute, Ottawa, Canada
| | - Dean A. Fergusson
- Ottawa Hospital Research Institute, Ottawa, Canada
- Department of Medicine, University of Ottawa, Ottawa, Canada
| | - Ranjeeta Mallick
- Ottawa Hospital Research Institute, Ottawa, Canada
- Department of Medicine, University of Ottawa, Ottawa, Canada
| | - Risa Shorr
- Faculty of Medicine, University of Ottawa, Ottawa, Canada
- The Ottawa Hospital, Ottawa, Canada
| | - Michel Shamy
- Ottawa Hospital Research Institute, Ottawa, Canada
- Department of Medicine, University of Ottawa, Ottawa, Canada
| | - Dar Dowlatshahi
- Ottawa Hospital Research Institute, Ottawa, Canada
- Department of Medicine, University of Ottawa, Ottawa, Canada
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Srichawla BS, Fang T, Kipkorir V, Garcia-Dominguez MA. Reversible cerebral vasoconstriction syndrome and posterior reversible encephalopathy syndrome following vaccination: analysis of the VAERS database and systematic review. Ann Med Surg (Lond) 2024; 86:1251-1260. [PMID: 38463101 PMCID: PMC10923363 DOI: 10.1097/ms9.0000000000001407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/02/2023] [Indexed: 03/12/2024] Open
Abstract
Objectives This study aimed to analyze the Vaccine Adverse Event Reporting System (VAERS) database and systematically review the literature to provide a comprehensive analysis of reversible cerebral vasoconstriction syndrome (RCVS) and posterior reversible encephalopathy syndrome (PRES) secondary to vaccination. Methods The authors analyzed the VAERS database and conducted a systematic review following PRISMA guidelines. The inclusion criteria for VAERS data were a score of ≥3 on the RCVS2 score and/or radiographic findings consistent with the diagnosis of RCVS or PRES. The systematic review was registered with PROSPERO. Results Our combined data set included 29 cases (9 RCVS and 20 PRES). Most cases were women (72.4%) with a mean age of 50.7 years (SD 19.4 years). Most cases were associated with COVID-19 mRNA vaccines (58.6% Moderna, 20.7% Pfizer). Hypertension (37.9%), hyperlipidemia (13.7%), chronic kidney disease (CKD) (10.3%), and end-stage renal disease (6.8%) were common comorbidities. Furthermore, 20.6% (6/29) of cases were on immunosuppression therapy for various reasons. The mean time to symptom onset was 10.49 days after vaccination (SD 18.60), and the mean duration of hospitalization was 7.42 days (SD 5.94). The symptoms reported the most frequently were headache (41.3%), elevated blood pressure (31.0%), and emesis (17.2%). Typical radiographic findings included T2/FLAIR hyperintensities affecting the parieto-occipital lobes, indicative of vasogenic and/or cytotoxic edema. Conclusions This study provides a comprehensive analysis of postvaccine RCVS and PRES. Both disease states were seen most often in those with pre-existing risk factors such as female sex, age over 50, hypertension, renal disease, and immunosuppression. Vaccines and their associated immune response may cause endothelial dysfunction leading to cerebral vasospasm and loss of cerebral autoregulation. However, further research is required to understand the underlying pathophysiological mechanisms. Despite the associations found, the absolute risk of these syndromes remains extremely low compared to the immense benefits of vaccination.
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Affiliation(s)
- Bahadar S. Srichawla
- Department of Neurology, University of Massachusetts, Chan Medical School, Massachusetts, USA
| | - Ton Fang
- Department of Neurology, University of Massachusetts, Chan Medical School, Massachusetts, USA
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Sowanou A, Ungureanu A, Aguesse C. Recurrent reversible cerebral vasoconstriction syndrome and antiphospholipid syndrome. Acta Neurol Belg 2024; 124:329-334. [PMID: 37392321 DOI: 10.1007/s13760-023-02324-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/21/2023] [Indexed: 07/03/2023]
Affiliation(s)
- Arlos Sowanou
- Neurology Department, Centre Hospitalier Alpes-Léman, Contamine Sur Arve, France
| | - Aurelian Ungureanu
- Neurology Department, Centre Hospitalier Alpes-Léman, Contamine Sur Arve, France.
| | - Claire Aguesse
- Neurology Department, Centre Hospitalier Alpes-Léman, Contamine Sur Arve, France
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Singhal AB. Reversible cerebral vasoconstriction syndrome: A review of pathogenesis, clinical presentation, and treatment. Int J Stroke 2023; 18:1151-1160. [PMID: 37246916 DOI: 10.1177/17474930231181250] [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: 05/30/2023]
Abstract
Reversible segmental narrowing of the intracranial arteries has been described since several decades in numerous clinical settings, using variable nosology. Twenty-one years ago, we tentatively proposed the unifying concept that these entities, based on similar clinical-imaging features, represented a single cerebrovascular syndrome. This "reversible cerebral vasoconstriction syndrome" or RCVS has now come of age. A new International Classification of Diseases code, (ICD-10, I67.841) has been established, enabling larger-scale studies. The RCVS2 scoring system provides high accuracy in confirming RCVS diagnosis and excluding mimics such as primary angiitis of the central nervous system. Several groups have characterized its clinical-imaging features. RCVS predominantly affects women. Recurrent worst-ever (thunderclap) headaches are typical at onset. While initial brain imaging is often normal, approximately one-third to half develop complications such as convexity subarachnoid hemorrhages, lobar hemorrhages, ischemic strokes located in arterial "watershed" territories and reversible edema, alone or in combination. Vasoconstriction evolves over hours to days, first affecting distal and then the more proximal arteries. An overlap between RCVS and primary thunderclap headache, posterior reversible encephalopathy syndrome, Takotsubo cardiomyopathy, transient global amnesia, and other conditions has been recognized. The pathophysiology remains largely unknown. Management is mostly symptomatic: headache relief with analgesics and oral calcium-channel blockers, removal of vasoconstrictive factors, and avoidance of glucocorticoids that can significantly worsen outcome. Intra-arterial vasodilator infusions provide variable success. Overall, 90-95% of admitted patients achieve complete or major resolution of symptoms and clinical deficits within days to weeks. Recurrence is exceptional, although 5% can later develop isolated thunderclap headaches with or without mild cerebral vasoconstriction.
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Affiliation(s)
- Aneesh B Singhal
- Neurology Department, Massachusetts General Hospital, Boston, MA, USA
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Lange KS, Choi SY, Ling YH, Chen SP, Mawet J, Duflos C, Lee MJ, Ducros A, Wang SJ, Pezzini A. Reversible cerebral Vasoconstriction syndrome intERnational CollaborativE (REVERCE) network: Study protocol and rationale of a multicentre research collaboration. Eur Stroke J 2023; 8:1107-1113. [PMID: 37329287 PMCID: PMC10683719 DOI: 10.1177/23969873231182207] [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: 04/11/2023] [Accepted: 05/30/2023] [Indexed: 06/19/2023] Open
Abstract
INTRODUCTION Reversible cerebral vasoconstriction syndrome (RCVS) is a rare, but increasingly recognised cerebrovascular condition with an estimated annual age-standardised incidence of approximately three cases per million. Knowledge about risk factors and triggering conditions and information about prognosis and optimal treatment in these patients are limited. METHODS The REversible cerebral Vasoconstriction syndrome intERnational CollaborativE (REVERCE) project aims to elucidate the epidemiological and clinical characteristics of RCVS by collecting individual patient data from four countries (France, Italy, Taiwan and South Korea) in the setting of a multicentric study. All patients with a diagnosis of definite RCVS will be included. Data on the distribution of risk factors and triggering conditions, imaging data, neurological complications, functional outcome, risk of recurrent vascular events and death and finally the use of specific treatments will be collected. Subgroup analyses will be made based on age, gender, aetiology, ethnicity and geographical region of residence. ETHICS AND DISSEMINATION Ethical approval for the REVERCE study will be obtained from national or local institutional review boards in the participating centres. When needed, a standardised data transfer agreement will be provided for participating centres. We plan dissemination of our results in peer-reviewed international scientific journals and through conference presentations. We expect that the results of this unique study will lead to better understanding of clinical and epidemiological characteristics of RCVS patients.
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Affiliation(s)
- Kristin Sophie Lange
- Department of Neurology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Center for Stroke Research Berlin (CSB), Charité – Universitätsmedizin, Berlin, Germany
- Department of Neurology, CHU Montpellier, Gui de Chauliac Hospital, Montpellier, France
| | - So Youn Choi
- Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yu-Hsiang Ling
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Pin Chen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jérôme Mawet
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Claire Duflos
- Clinical Research and Epidemiology Unit, Department of Public Health, CHU Montpellier, Montpellier University, Montpellier, France
| | - Mi Ji Lee
- Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Anne Ducros
- Department of Neurology, CHU Montpellier, Gui de Chauliac Hospital, Montpellier, France
- Charles Coulomb Laboratory, CNRS UMR5221, Montpellier University, Montpellier, France
| | - Shuu-Jiun Wang
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Alessandro Pezzini
- Department of Clinical and Experimental Sciences, Neurology Clinic, University of Brescia, Brescia, Italy
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Li S, Yang Y, Zuo J, Du N, Kou G. Reversible cerebral vasoconstriction syndrome following intracranial hypotension in a postpartum patient: a case report and literature review. Front Neurol 2023; 14:1281074. [PMID: 37900590 PMCID: PMC10602719 DOI: 10.3389/fneur.2023.1281074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction Reversible cerebral vasoconstriction syndrome (RCVS) is a potentially life-threatening neurological disorder, rarely linked to intracranial hypotension. The presentation showed a patient with intracranial hypotension after peridural anesthesia who experienced RCVS during the early postpartum period, suggesting a potential involvement of intracranial hypotension in RCVS occurrence. Case report A young female of 29 years of age initially developed an orthostatic headache after undergoing a painless delivery with lumbar epidural anesthesia. Intracranial hypotension was considered the underlying cause. Her headache was partially resolved after intravenous fluid therapy and strict bed rest. After 2 days, the patient had a new onset thunderclap headache with generalized seizures, cortical blindness, and elevated blood pressure. An MRI scan revealed high signal intensity within the temporal, parietal, and occipital lobes, left caudate nucleus, and right cerebellum on T2-FLAIR imaging with vasogenic edema. MR angiography indicated multifocal, segmental, diffuse narrowing affecting the cerebral arteries that are large and medium. An RCVS2 score was six, and the patient was diagnosed with RCVS. She was managed conservatively, quickly improving her symptoms. After 10 days, a follow-up MRI indicated a significant reduction in the abnormal signal, and a substantial resolution of the constriction of the cerebral artery constriction was confirmed by MR angiography. Conclusion Intracranial hypotension could potentially lead to RCVS in postpartum patients, and it may be triggered by cerebral vasospasm secondary to intracranial hypotension.
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Affiliation(s)
- Shuhua Li
- Department of Infectious Diseases, Mianyang Central Hospital, University of Electronic Science and Technology of China, Mianyang, China
| | - Yi Yang
- Department of Neurology, Mianyang Central Hospital, University of Electronic Science and Technology of China, Mianyang, China
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Jiacai Zuo
- Department of Neurology, Mianyang Central Hospital, University of Electronic Science and Technology of China, Mianyang, China
| | - Ningli Du
- Department of Infectious Diseases, Mianyang Central Hospital, University of Electronic Science and Technology of China, Mianyang, China
| | - Guoxian Kou
- Department of Infectious Diseases, Mianyang Central Hospital, University of Electronic Science and Technology of China, Mianyang, China
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Liberman AL, Zhang C, Parikh NS, Salehi Omran S, Navi BB, Lappin RI, Merkler AE, Kaiser JH, Kamel H. Misdiagnosis of Posterior Reversible Encephalopathy Syndrome and Reversible Cerebral Vasoconstriction Syndrome in the Emergency Department. J Am Heart Assoc 2023; 12:e030009. [PMID: 37750568 PMCID: PMC10727253 DOI: 10.1161/jaha.123.030009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/24/2023] [Indexed: 09/27/2023]
Abstract
Background Cerebrovascular dysregulation syndromes, posterior reversible encephalopathy syndrome (PRES) and reversible cerebral vasoconstriction syndrome (RCVS), are challenging to diagnose because they are rare and require advanced neuroimaging for confirmation. We sought to estimate PRES/RCVS misdiagnosis in the emergency department and its associated factors. Methods and Results We conducted a retrospective cohort study of PRES/RCVS patients using administrative claims data from 11 states (2016-2018). We defined patients with a probable PRES/RCVS misdiagnosis as those with an emergency department visit for a neurological symptom resulting in discharge to home that occurred ≤14 days before PRES/RCVS hospitalization. Proportions of patients with probable misdiagnosis were calculated, characteristics of patients with and without probable misdiagnosis were compared, and regression analyses adjusted for demographics and comorbidities were performed to identify factors affecting probable misdiagnosis. We identified 4633 patients with PRES/RCVS. A total of 210 patients (4.53% [95% CI, 3.97-5.17]) had a probable preceding emergency department misdiagnosis; these patients were younger (mean age, 48 versus 54 years; P<0.001) and more often female (80.4% versus 69.3%; P<0.001). Misdiagnosed patients had fewer vascular risk factors except prior stroke (36.3% versus 24.2%; P<0.001) and more often had comorbid headache (84% versus 21.4%; P<0.001) and substance use disorder (48.8% versus 37.9%; P<0.001). Facility-level factors associated with probable misdiagnosis included smaller facility, lacking a residency program (62.2% versus 73.7%; P<0.001), and not having on-site neurological services (75.7% versus 84.3%; P<0.001). Probable misdiagnosis was not associated with higher likelihood of stroke or subarachnoid hemorrhage during PRES/RCVS hospitalization. Conclusions Probable emergency department misdiagnosis occurred in ≈1 of every 20 patients with PRES/RCVS in a large, multistate cohort.
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Affiliation(s)
- Ava L. Liberman
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
| | - Cenai Zhang
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
| | - Neal S. Parikh
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
| | | | - Babak B. Navi
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
| | | | - Alexander E. Merkler
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
| | - Jed H. Kaiser
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
| | - Hooman Kamel
- Clinical and Translational Neuroscience Unit, Department of NeurologyFeil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNY
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Damer A, Chaudry E, Eftekhari D, Benseler SM, Safi F, Aviv RI, Tyrrell PN. Neuroimaging Scoring Tools to Differentiate Inflammatory Central Nervous System Small-Vessel Vasculitis: A Need for Artificial Intelligence/Machine Learning?-A Scoping Review. Tomography 2023; 9:1811-1828. [PMID: 37888736 PMCID: PMC10610796 DOI: 10.3390/tomography9050144] [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: 07/23/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023] Open
Abstract
Neuroimaging has a key role in identifying small-vessel vasculitis from common diseases it mimics, such as multiple sclerosis. Oftentimes, a multitude of these conditions present similarly, and thus diagnosis is difficult. To date, there is no standardized method to differentiate between these diseases. This review identifies and presents existing scoring tools that could serve as a starting point for integrating artificial intelligence/machine learning (AI/ML) into the clinical decision-making process for these rare diseases. A scoping literature review of EMBASE and MEDLINE included 114 articles to evaluate what criteria exist to diagnose small-vessel vasculitis and common mimics. This paper presents the existing criteria of small-vessel vasculitis conditions and mimics them to guide the future integration of AI/ML algorithms to aid in diagnosing these conditions, which present similarly and non-specifically.
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Affiliation(s)
- Alameen Damer
- Department of Medical Imaging, University of Toronto, Toronto, ON M5T 1W7, Canada
- Department of Radiology, Radiation Oncology and Medical Physics, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Emaan Chaudry
- Department of Medical Imaging, University of Toronto, Toronto, ON M5T 1W7, Canada
| | - Daniel Eftekhari
- Department of Medical Imaging, University of Toronto, Toronto, ON M5T 1W7, Canada
| | - Susanne M. Benseler
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Frozan Safi
- Department of Medical Imaging, University of Toronto, Toronto, ON M5T 1W7, Canada
| | - Richard I. Aviv
- Department of Radiology, Radiation Oncology and Medical Physics, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Pascal N. Tyrrell
- Department of Medical Imaging, University of Toronto, Toronto, ON M5T 1W7, Canada
- Institute of Medical Science, Department of Statistical Sciences, University of Toronto, Toronto, ON M5G 1X6, Canada
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14
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De Lucia F, Boucquey D, Coolen T. A stroke mimic with left-hemispheric leptomeningeal vessel paucity and hypoperfusion. Radiol Case Rep 2023; 18:3438-3441. [PMID: 37502472 PMCID: PMC10369385 DOI: 10.1016/j.radcr.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/29/2023] Open
Abstract
In the neuroimaging workup of a suspected ischemic stroke, the involvement of more than one arterial territory without an anatomical substrate should raise the suspicion of a stroke mimic. We report the case of a 61-year-old male with a new-onset headache and transient phasic disturbances who presented a pattern of vascular abnormalities characterized by left-hemispheric leptomeningeal vessel paucity and hypoperfusion.
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Affiliation(s)
- Federico De Lucia
- Department of Radiology, Centre Hospitalier Interrégional Edith Cavell (CHIREC), Site Delta, Brussels, Belgium
| | - Dominique Boucquey
- Department of Neurology, Centre Hospitalier Interrégional Edith Cavell (CHIREC), Site Delta, Brussels, Belgium
| | - Tim Coolen
- Department of Radiology, Centre Hospitalier Interrégional Edith Cavell (CHIREC), Site Delta, Brussels, Belgium
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15
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Tentolouris-Piperas V, Lymperopoulos L, Tountopoulou A, Vassilopoulou S, Mitsikostas DD. Headache Attributed to Reversible Cerebral Vasoconstriction Syndrome (RCVS). Diagnostics (Basel) 2023; 13:2730. [PMID: 37685270 PMCID: PMC10487016 DOI: 10.3390/diagnostics13172730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/10/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) is a condition with variable outcomes presenting a new onset thunderclap headache accompanied by focal neurological symptoms or seizures. It can be idiopathic or arise secondarily to a variety of trigger factors. The condition is increasingly recognized in clinical practice, but many facets remain poorly understood. This article aims to clarify the headache characteristics in RCVS, the temporal association of angiographic findings, the potential association of the condition with SARS-CoV-2 infection, and the clinical presentation of RCVS in children and is based on a systematic PRISMA search for published analytical or large descriptive observational studies. Data from 60 studies that fulfilled specific criteria were reviewed. Most people with RCVS exhibit a typical thunderclap, explosive, or pulsatile/throbbing headache, or a similar acute and severe headache that takes longer than 1 min to peak. Atypical presentations or absence of headaches are also reported and may be an underrecognized phenotype. In many cases, headaches may persist after resolution of RCVS. Focal deficits or seizures are attributed to associated complications including transient ischemic attacks, posterior reversible encephalopathy syndrome, ischemic stroke, cerebral edema, and intracranial hemorrhage. The peak of vasoconstriction occurs usually within two weeks after clinical onset, possibly following a pattern of centripetal propagation, and tends to resolve completely within 3 months, well after symptoms have subsided. There are a few reports of RCVS occurring in relation to SARS-CoV-2 infection, but potential underlying pathophysiologic mechanisms and etiological associations have not been confirmed. RCVS occurs in children most often in the context of an underlying disease. Overall, the available data in the literature are scattered, and large-scale prospective studies and international collaborations are needed to further characterize the clinical presentation of RCVS.
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Affiliation(s)
| | | | | | | | - Dimos D. Mitsikostas
- 1st Department of Neurology, Eginition Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (V.T.-P.); (L.L.); (A.T.); (S.V.)
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16
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Amin M, Uchino K, Hajj-Ali RA. Central Nervous System Vasculitis: Primary Angiitis of the Central Nervous System and Central Nervous System Manifestations of Systemic Vasculitis. Rheum Dis Clin North Am 2023; 49:603-616. [PMID: 37331735 DOI: 10.1016/j.rdc.2023.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Central nervous system vasculitis (CNSV) is a group of disorders leading to inflammatory vasculopathy within the brain, spinal cord, and leptomeninges. CNSV is divided into primary angiitis of the central nervous system (PACNS) and secondary CNSV based on the underlying etiology. PACNS is a rare inflammatory disorder with poorly understood pathophysiology and heterogeneous and highly variable clinical features. The diagnosis depends on a combination of clinical and laboratory variables, multimodal imaging, and histopathological examination as well as exclusion of mimics. Several systemic vasculitides, infectious etiologies and connective tissue disorders have been shown to cause secondary CNSV and require prompt recognition.
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Affiliation(s)
- Moein Amin
- Mellen Center for Multiple Sclerosis Treatment and Research, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Ken Uchino
- Cerebrovascular Center, Cleveland Clinic, Cleveland, OH, USA
| | - Rula A Hajj-Ali
- Cleveland Clinic Center for Vasculitis Care and Research, Cleveland Clinic, 9500 Euclid Avenue, A50, Cleveland, OH 44195, USA.
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17
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Xie JP, Koh PX, Sivasubramanian S. Reversible cerebral vasoconstriction syndrome (RCVS). QJM 2023; 116:530-531. [PMID: 36847438 DOI: 10.1093/qjmed/hcad029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/01/2023] Open
Affiliation(s)
- J P Xie
- Department of Neurology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433 Singapore, Singapore
| | - P X Koh
- Department of Neurology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433 Singapore, Singapore
| | - S Sivasubramanian
- Department of Radiology, Khoo Teck Puat Hospital, 90 Yishun Central, 768828 Singapore, Singapore
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18
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Marulanda E, Tornes L. Obstetric and Gynecologic Disorders and the Nervous System. Continuum (Minneap Minn) 2023; 29:763-796. [PMID: 37341330 DOI: 10.1212/con.0000000000001237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
OBJECTIVE This article discusses obstetric and gynecologic associations with common neurologic disorders. LATEST DEVELOPMENTS Neurologic complications of obstetric and gynecologic disorders can arise throughout the lifespan. Caution should be exercised when prescribing fingolimod and natalizumab to patients with multiple sclerosis who are of childbearing potential because of the risk of disease rebound when they are discontinued. OnabotulinumtoxinA is considered safe in pregnancy and lactation based on long-term observational data. Hypertensive disorders of pregnancy are associated with higher subsequent cerebrovascular risk, likely via multiple mechanisms. ESSENTIAL POINTS Neurologic disorders may present in a variety of obstetric and gynecologic contexts, with meaningful implications for recognition and treatment. These interactions must be considered when treating women with neurologic conditions.
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Lange KS, Tuloup G, Duflos C, Gobron C, Burcin C, Corti L, Roos C, Ducros A, Mawet J. Complications of reversible cerebral vasoconstriction syndrome in relation to age. J Neurol 2023:10.1007/s00415-023-11708-z. [PMID: 37052670 DOI: 10.1007/s00415-023-11708-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 04/14/2023]
Abstract
INTRODUCTION Reversible cerebral vasoconstriction syndrome (RCVS) has a heterogenous clinical and radiological presentation. We investigated whether RCVS complications vary according to age. PATIENTS AND METHODS In a pooled French cohort of 345 patients with RCVS, we assessed (1) rates of clinical and radiological complications, and (2) the functional outcome at 3 months according to age as a continuous variable, and in young patients aged ≤ 49 years versus those aged ≥ 50 years. The Commission Nationale Informatique et Liberté and the local ethics committee approved this study (registration number: 202100733). RESULTS The risk for any focal deficit and for any brain lesion were independently associated with increasing age (OR 1.4, 95% CI 1.1-1.8; p = 0.014, and OR 1.6, 95% CI 1.2-2.1; p < 0.001, respectively). Subtypes of brain lesions independently associated with increasing age were subarachnoid haemorrhage (OR 1.7, 95% CI 1.3-2.3; p < 0.001) and intracerebral haemorrhage (OR 1.5, 95% CI 1.1-2.2; p = 0.023). Frequency of cervical artery dissections peaked at age 30-39, and young age was independently associated with cervical artery dissections (OR 13.6, 95% CI 2.4-76.6; p = 0.003). Age had no impact on the functional outcome, with a modified Rankin scale score of 0-1 in > 96% of patients. CONCLUSION Age seems to influence rates and types of complications of RCVS, with young age being associated with cervical artery dissections, and increasing age with haemorrhagic complications. If confirmed in larger prospective studies, recognition of age-specific patterns might help to guide clinical management and to identify complications in cases of RCVS and vice versa.
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Affiliation(s)
- Kristin Sophie Lange
- Department of Neurology, CHU Montpellier, Gui de Chauliac Hospital, Montpellier, France.
- Center for Stroke Research Berlin (CSB), Charité-Universitätsmedizin, Berlin, Germany.
- Department of Neurology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
| | - Gabrielle Tuloup
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
- Department of Neurology, CHU Caen-Normandie, Caen, France
| | - Claire Duflos
- Clinical Research and Epidemiology Unit, Department of Public Health, CHU Montpellier, Montpellier University, Montpellier, France
| | - Claire Gobron
- Department of Clinical Physiology, APHP, Lariboisière-St Louis Hospitals, DMU DREAM, 75010, Paris, France
| | - Cécilia Burcin
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Lucas Corti
- Department of Neurology, CHU Montpellier, Gui de Chauliac Hospital, Montpellier, France
| | - Caroline Roos
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Anne Ducros
- Department of Neurology, CHU Montpellier, Gui de Chauliac Hospital, Montpellier, France
- Charles Coulomb Laboratory, CNRS UMR5221, Montpellier University, Montpellier, France
| | - Jérôme Mawet
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
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Chaturvedi S. Diagnosis and Management of Large Artery Atherosclerosis. Continuum (Minneap Minn) 2023; 29:486-500. [PMID: 37039406 DOI: 10.1212/con.0000000000001212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
OBJECTIVE Ischemic stroke due to large vessel atherosclerosis is a significant cause of stroke globally. With the aging population, the number of people with atherosclerotic stroke will increase in the coming decades. This article reviews the recent developments in the assessment and treatment of extracranial and intracranial atherosclerotic disease. LATEST DEVELOPMENTS More intensive dual antiplatelet therapy can now be recommended for patients with transient ischemic attack or stroke. More stringent blood pressure and lipid control is also advised. The need for carotid revascularization will likely decrease in the coming decades because of advances in multimodal medical therapy; in particular, the role of revascularization for treating asymptomatic carotid stenosis is controversial. Patients with symptomatic intracranial stenosis should receive intensive medical therapy. Interest in high-resolution carotid plaque imaging is growing. ESSENTIAL POINTS The prevention of stroke due to large vessel atherosclerosis has improved owing to advances in medical therapies. The role of carotid revascularization is unclear for many patient subgroups.
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21
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Lin PT, Chen SP, Wang SJ. Update on primary headache associated with sexual activity and primary thunderclap headache. Cephalalgia 2023; 43:3331024221148657. [PMID: 36786380 DOI: 10.1177/03331024221148657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
BACKGROUND This narrative review aims to provide an update on primary headache associated with sexual activity and primary thunderclap headache. METHODS We conducted a literature search on PubMed with the keywords "headache associated with sexual activity", "sexual headache", "orgasmic cephalalgia", and "coital cephalalgia" in addition to "thunderclap headache" to assess the appropriateness of all published articles in this review. RESULTS Primary headache associated with sexual activity is a "primary" headache precipitated by sexual activity, which occurs as sexual excitement increases (progressive at onset), or manifests as an abrupt and intense headache upon orgasm (thunderclap at onset) or combines these above two features. Primary headache associated with sexual activity is diagnosed after a thorough investigation, including appropriate neuroimaging studies, to exclude life-threatening secondary causes such as subarachnoid hemorrhage. According to the criteria of the third edition of the International Classification of Headache Disorders, primary thunderclap headache is also a diagnosis by exclusion. The pathophysiology of primary headache associated with sexual activity and primary thunderclap headache remains incompletely understood. Treatment may not be necessary for all patients since some patients with primary headache associated with sexual activity and primary thunderclap headache have a self-limiting course. CONCLUSION A comprehensive neuroimaging study is needed for distinguishing primary headache associated with sexual activity or primary thunderclap headache from secondary causes. Primary headache associated with sexual activity and primary thunderclap headache are self-limited diseases and the prognoses are good, but some patients with primary headache associated with sexual activity may have a prolonged course.
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Affiliation(s)
- Po-Tso Lin
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Pin Chen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shuu-Jiun Wang
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
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22
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Kumar N, Kumar S, Rocha E, Lioutas VA. Vasoconstriction and long-term headache in reversible cerebral vasoconstriction syndrome. J Neurol 2023; 270:1647-1653. [PMID: 36471097 DOI: 10.1007/s00415-022-11511-2] [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: 09/15/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Angiographic vasoconstriction in reversible cerebral vasoconstriction syndrome (RCVS) is often undetectable at symptom onset and the diagnosis relies on clinical presentation. Although thunderclap headache is a hallmark feature of RCVS, the incidence and predictors of long-term headaches (LTH) are incompletely understood. Our study aims were twofold: to examine the sensitivity and specificity of a recently developed score (RCVS2) for vasoconstriction detection in a real-world clinical context and describe the incidence and predictors of LTH beyond the acute phase of RCVS. METHODS Retrospective analysis of consecutive patients with clinical diagnosis of RCVS in a tertiary hospital between 2017 and 2021. We examined associations between demographic factors, comorbidities, medications, imaging characteristics, and LTH (defined as at least one episode present at greater than 6-months follow-up necessitating medication). We separately examined the association between RCVS2 score and angiographic vasoconstriction and computed its sensitivity, specificity, and negative and positive predictive value based on established cutoffs (certain ≥ 5, negative ≤ 2). RESULTS We included 55 patients, 50.5 (± 13.7) years; 41 (75%) female. 25 (49%) patients had LTH; only prior history of headache was significantly associated with LTH [OR 4.3, 95% CI (1.1-16.2), p = 0.03]. We found a significant association between RCVS2 score and angiographic vasoconstriction [OR 1.49, 95% CI (1.18-1.88), p = 0.001]; sensitivity, specificity, and positive and negative predictive value were 64%, 94%, 95% and 58% respectively. CONCLUSIONS Approximately 50% of RCVS patients experienced LTH; only prior headache history was associated with its incidence. The RCVS2 score had a significant association with high specificity and positive predictive value for angiographic vasoconstriction in our cohort, validating its utility in improving the accuracy of diagnosis in the clinical setting.
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Affiliation(s)
- Neha Kumar
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA.
- Department of Neurology, Universidade Federal de São Paulo, São Paulo, Brazil.
| | - Sandeep Kumar
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
- Department of Neurology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Eva Rocha
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
- Department of Neurology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Vasileios-Arsenios Lioutas
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
- Department of Neurology, Universidade Federal de São Paulo, São Paulo, Brazil
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23
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Stroke in Pregnancy. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2023. [DOI: 10.1007/s13669-023-00351-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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24
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Imai M, Shimoda M, Oda S, Hoshikawa K, Osada T, Aoki R, Sunaga A. Reversible Cerebral Vasoconstriction Syndrome Patients with a History of Migraine: A Retrospective Case-control Study. Intern Med 2023; 62:355-364. [PMID: 35831115 PMCID: PMC9970822 DOI: 10.2169/internalmedicine.9776-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Objective We investigated the clinical characteristics of patients with reversible cerebral vasoconstrictor syndrome who had a history of migraine before the onset and considered the relationship between these two pathologies. Methods We investigated 98 patients who underwent magnetic resonance angiography within 14 days of the onset of reversible cerebral vasoconstriction syndrome at our hospital. Of these, 11 cases involved recurrences, so data from 87 patients were analyzed. Materials All consecutive patients diagnosed with reversible cerebral vasoconstrictor syndrome at our institution between October 2010 and July 2021. Results Fifty of the 87 patients (57%) had a history of migraine. A multivariate analysis revealed that the following clinical factors were significantly more frequent in patients with a history of migraine than in those without such a history: female sex; emotional situations as a trigger of the onset; presence of deep and subcortical white matter hyperintensity, absence of vasoconstriction in the M1 portion of the middle cerebral artery, and absence of other cerebral lesions on initial magnetic resonance imaging; absence of vasoconstriction of the basilar artery on follow-up magnetic resonance imaging; and progression of deep and subcortical white matter hyperintensity in the chronic stage. Conclusion Reversible cerebral vasoconstrictor syndrome patients with a history of migraine showed clinical features of migraine, including one aspect of cerebral small-vessel disease due to endothelial dysfunction, as a common causative condition.
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Affiliation(s)
- Masaaki Imai
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
| | - Masami Shimoda
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
| | - Shinri Oda
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
| | - Kaori Hoshikawa
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
| | - Takahiro Osada
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
| | - Rie Aoki
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
| | - Azusa Sunaga
- Department of Neurosurgery, Tokai University Hachioji Hospital, Japan
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25
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Chandra R, Saini HS, Palmer KN, Cerejo R. The link between reversible cerebral vasoconstriction syndrome and transient global amnesia. Headache 2023; 63:168-172. [PMID: 36588462 DOI: 10.1111/head.14432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 01/03/2023]
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) and transient global amnesia (TGA) are acute and self-limiting intra-cerebral conditions. Although previously studied as independent phenomena, there are increasing reports of co-occurrence of these two pathologies. We report a 55-year-old male who presented to the hospital with recurrent thunderclap headaches over the course of 1 week with sudden onset of anterograde memory loss. His medications included a selective serotonin reuptake inhibitor and intermittent use of pseudoephedrine. On examination he was amnestic to recent events and notably perseverating. Magnetic resonance imaging of the brain without contrast showed a small, punctate focus of restricted diffusion in the left hippocampus. He was diagnosed with TGA based on his clinical presentation. His headaches and amnesia resolved over the next 12 h throughout the course of his stay with acetaminophen and oral verapamil and he was discharged. Repeat computed tomography angiogram at 2 weeks revealed diffuse and segmental narrowing of the anterior and posterior intracranial circulation, which resolved on follow-up imaging at 3 months, confirming RCVS. The acute and reversible nature of these conditions and increasing reports of co-occurrence suggests a common pathophysiologic link. We review the literature highlighting similar cases and the presumed pathophysiology.
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Affiliation(s)
- Rahul Chandra
- Neurology, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | | | | | - Russell Cerejo
- Neurology, Allegheny General Hospital, Pittsburgh, Pennsylvania, USA
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26
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Ribas MZ, Paticcié GF, de Medeiros SDP, de Oliveira Veras A, Noleto FM, dos Santos JCC. Reversible cerebral vasoconstriction syndrome: literature review. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2023; 59:5. [PMID: 36647436 PMCID: PMC9833030 DOI: 10.1186/s41983-023-00607-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 01/04/2023] [Indexed: 01/13/2023] Open
Abstract
Reversible Cerebral Vasoconstriction Syndrome (RCVS) is a neurovascular condition characterized by a severe sudden-onset headache that may be associated with focal neurological deficits. On imaging, the suggestive finding corresponds to multifocal vasoconstriction of the cerebral arteries, with a spontaneous resolution of approximately 12 weeks. The identification of precipitating factors and diagnosis must be carried out early, so that adequate management is established and the patient has a good prognosis, given the risk of secondary complications and residual neurological deficits. This study consists of a literature review based on the analysis of articles published between 2017 and 2022 in PubMed, SciELO, and ScienceDirect on RCVS, intending to understand the clinical and radiological characteristics, diagnosis, treatment, and prognosis of patients with RCVS. The pathophysiology, drug management, and prognosis still lack solid evidence; therefore, further studies on RCVS are needed to expand medical knowledge and avoid underdiagnosis and inadequate treatment of this important condition.
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Affiliation(s)
| | - Gabriela Ferreira Paticcié
- grid.411198.40000 0001 2170 9332Faculty of Medicine, Federal University of Juiz de Fora, Juiz de Fora, MG Brazil
| | | | - Arthur de Oliveira Veras
- grid.11899.380000 0004 1937 0722Clinical Hospital of the Faculty of Medicine of Ribeirão Preto - USP, Ribeirão Prêto, SP Brazil
| | - Felipe Micelli Noleto
- grid.510399.70000 0000 9839 2890Faculty of Medicine, Christus University Center, UNICHRISTUS, Fortaleza, CE Brazil
| | - Júlio César Claudino dos Santos
- grid.411249.b0000 0001 0514 7202Neurosciences Laboratory, Department of Neurology and Neurosurgery, Federal University of São Paulo, Sena Madureira, 1500, Vila Clementino (SP), São Paulo, SP 04021-001 Brazil
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27
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Veras ADO, Noleto FM, Ribas MZ, Paticcié GF, Palomo Barreira R, Correa BM, Torres TZM, Rossette VM, Miranda NF, Miyahira CK, Claudino dos Santos JC. Reversible cerebral vasoconstriction syndrome associated with probable drug poisoning. Radiol Case Rep 2022; 18:844-849. [PMID: 36589490 PMCID: PMC9800248 DOI: 10.1016/j.radcr.2022.11.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2022] Open
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) is a clinical condition characterized by arterial involvement of the intracranial vessels, manifesting with vasospasm. The most common clinical manifestation related to the syndrome is the thunderclap headache, which consists of a severe headache that reaches the peak of pain within minutes. The imaging study assumes a leading role in the complementary investigation. Laboratory tests and cerebrospinal fluid analysis are often nonspecific and without significant diagnostic importance. Non-contrast studies of the brain parenchyma reveal variable results that can often be normal. Angiographic findings, which initially may not reveal any changes, allow the visualization of diffuse narrowing of the vessels, with the posterior cerebral circulation being preferentially affected. The present study reports the case of a 19-year-old woman with no relevant medical history, except that she was a regular user of marijuana and a drug based on chloroform and ether. The patient showed clinical and imaging signs compatible with RCVS, and the narcotics used by her were considered precipitating factors.
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Affiliation(s)
- Arthur de Oliveira Veras
- Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto - USP, Ribeirão Preto, SP, Brasil
| | - Felipe Micelli Noleto
- Faculdade de Medicina, Centro Universitário Christus, UNICHRISTUS, Fortaleza, CE, Brasil
| | - Michelle Zonkowski Ribas
- Universidade Federal do Paraná, UFPR, Rua XV de Novembro, 1299 – Centro, Curitiba, Paraná CEP 80060-000, Brasil
- Corresponding author.
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Nehme A, Boulanger M, Aouba A, Pagnoux C, Zuber M, Touzé E, de Boysson H. Diagnostic and therapeutic approach to adult central nervous system vasculitis. Rev Neurol (Paris) 2022; 178:1041-1054. [PMID: 36156251 DOI: 10.1016/j.neurol.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/16/2022] [Indexed: 12/14/2022]
Abstract
The clinical manifestations of central nervous system (CNS) vasculitis are highly variable. In the absence of a positive CNS biopsy, CNS vasculitis is particularly suspected when markers of both vascular disease and inflammation are present. To facilitate the clinical and therapeutic approach to this rare condition, CNS vasculitis can be classified according to the size of the involved vessels. Vascular imaging is used to identify medium vessel disease. Small vessel disease can only be diagnosed with a CNS biopsy. Medium vessel vasculitis usually presents with focal neurological signs, while small vessel vasculitis more often leads to cognitive deficits, altered level of consciousness and seizures. Markers of CNS inflammation include cerebrospinal fluid pleocytosis or elevated protein levels, and vessel wall, parenchymal or leptomeningeal enhancement. The broad range of differential diagnoses of CNS vasculitis can be narrowed based on the disease subtype. Common mimickers of medium vessel vasculitis include intracranial atherosclerosis and reversible cerebral vasoconstriction syndrome. The diagnostic workup aims to answer two questions: is the neurological presentation secondary to a vasculitic process, and if so, is the vasculitis primary (i.e., primary angiitis of the CNS) or secondary (e.g., to a systemic vasculitis, connective tissue disorder, infection, malignancy or drug use)? In primary angiitis of the CNS, glucocorticoids and cyclophosphamide are most often used for induction therapy, but rituximab may be an alternative. Based on the available evidence, all patients should receive maintenance immunosuppression. A multidisciplinary approach is necessary to ensure an accurate and timely diagnosis and to improve outcomes for patients with this potentially devastating condition.
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Affiliation(s)
- A Nehme
- Normandie University, Caen, France; Department of Neurology, Caen University Hospital, Caen, France; Inserm UMR-S U1237 PhIND/BB@C, Caen, France.
| | - M Boulanger
- Normandie University, Caen, France; Department of Neurology, Caen University Hospital, Caen, France; Inserm UMR-S U1237 PhIND/BB@C, Caen, France
| | - A Aouba
- Normandie University, Caen, France; Department of Internal Medicine, Caen University Hospital, Caen, France
| | - C Pagnoux
- Vasculitis clinic, Division of Rheumatology, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | - M Zuber
- Department of Neurology, Saint-Joseph Hospital, Paris, France; Université Paris Cité, Paris, France
| | - E Touzé
- Normandie University, Caen, France; Department of Neurology, Caen University Hospital, Caen, France; Inserm UMR-S U1237 PhIND/BB@C, Caen, France
| | - H de Boysson
- Normandie University, Caen, France; Department of Internal Medicine, Caen University Hospital, Caen, France
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Chen SP, Wang SJ. Pathophysiology of reversible cerebral vasoconstriction syndrome. J Biomed Sci 2022; 29:72. [PMID: 36127720 PMCID: PMC9489486 DOI: 10.1186/s12929-022-00857-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022] Open
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) is a complex neurovascular disorder being recognized during the past two decades. It is characterized by multiple abrupt severe headaches and widespread cerebral vasoconstrictions, with potential complications such as ischemic stroke, convexity subarachnoid hemorrhage, intracerebral hemorrhage and posterior reversible encephalopathy syndrome. The clinical features, imaging findings, and dynamic disease course have been delineated. However, the pathophysiology of RCVS remains elusive. Recent studies have had substantial progress in elucidating its pathogenesis. It is now believed that dysfunction of cerebral vascular tone and impairment of blood–brain barrier may play key roles in the pathophysiology of RCVS, which explains some of the clinical and radiological manifestations of RCVS. Some other potentially important elements include genetic predisposition, sympathetic overactivity, endothelial dysfunction, and oxidative stress, although the detailed molecular mechanisms are yet to be identified. In this review, we will summarize what have been revealed in the literature and elaborate how these factors could contribute to the pathophysiology of RCVS.
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Affiliation(s)
- Shih-Pin Chen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, 11217, Taiwan. .,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan. .,Brain Research Center & School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Shuu-Jiun Wang
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, 11217, Taiwan. .,Brain Research Center & School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Abstract
Subarachnoid haemorrhage (SAH) is the third most common subtype of stroke. Incidence has decreased over past decades, possibly in part related to lifestyle changes such as smoking cessation and management of hypertension. Approximately a quarter of patients with SAH die before hospital admission; overall outcomes are improved in those admitted to hospital, but with elevated risk of long-term neuropsychiatric sequelae such as depression. The disease continues to have a major public health impact as the mean age of onset is in the mid-fifties, leading to many years of reduced quality of life. The clinical presentation varies, but severe, sudden onset of headache is the most common symptom, variably associated with meningismus, transient or prolonged unconsciousness, and focal neurological deficits including cranial nerve palsies and paresis. Diagnosis is made by CT scan of the head possibly followed by lumbar puncture. Aneurysms are commonly the underlying vascular cause of spontaneous SAH and are diagnosed by angiography. Emergent therapeutic interventions are focused on decreasing the risk of rebleeding (ie, preventing hypertension and correcting coagulopathies) and, most crucially, early aneurysm treatment using coil embolisation or clipping. Management of the disease is best delivered in specialised intensive care units and high-volume centres by a multidisciplinary team. Increasingly, early brain injury presenting as global cerebral oedema is recognised as a potential treatment target but, currently, disease management is largely focused on addressing secondary complications such as hydrocephalus, delayed cerebral ischaemia related to microvascular dysfunction and large vessel vasospasm, and medical complications such as stunned myocardium and hospital acquired infections.
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Affiliation(s)
- Jan Claassen
- Department of Neurology, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA.
| | - Soojin Park
- Department of Neurology, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA
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Reversible cerebral vasoconstriction syndrome: review of neuroimaging findings. Radiol Med 2022; 127:981-990. [PMID: 35932443 PMCID: PMC9362037 DOI: 10.1007/s11547-022-01532-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/22/2022] [Indexed: 12/04/2022]
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) is a group of disorders characterized by segmental narrowing and dilatation of medium-to-large cerebral arteries, clinically presenting with recurrent episodes of sudden-onset thunderclap headaches, with or without focal neurological deficits. Cerebral vasoconstriction is typically reversible, with spontaneous resolution within 3 months. Although the syndrome has generally a benign course, patients with neurological deficits may experience worse outcome. The main imaging finding is segmental constriction of intracranial arteries, which can be associated with subarachnoid hemorrhage and/or ischemic foci. Other possible findings are intracranial hemorrhage, subdural bleeding and cerebral edema. The latter may have a pattern which can resemble that of posterior reversible encephalopathy syndrome, a condition that can overlap with RCVS. New imaging techniques, such as vessel wall imaging and arterial spin labeling, are proving useful in RCVS and are giving new insights into the pathophysiology of this condition. In this paper, we aim to review neuroimaging findings of RCVS.
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Ahmad SJ, Zampolin RL, Brook AL, Kobets AJ, Altschul DJ. A case of hydrocephalus confounded by suprasellar arachnoid cyst and concomitant reversible cerebral vasoconstriction syndrome. Surg Neurol Int 2022; 13:331. [PMID: 36128109 PMCID: PMC9479517 DOI: 10.25259/sni_313_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/03/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Obstructive hydrocephalus is a neurologic condition that has varied clinical and imaging presentations, as well as a multitude of congenital etiologies including aqueductal stenosis and less commonly arachnoid cysts. Aqueductal stenosis is a physical limitation to cerebrospinal fluid flow along the course of the aqueduct, which results in enlargement of the third and lateral ventricles. Arachnoid cysts are thin walled and fluid filled central nervous system lesions that can result in mass effect on adjacent structures. While arachnoid cysts are mostly asymptomatic, they may present with neurological symptoms that vary depending on the location of the lesion. Suprasellar cysts in particular may cause obstructive hydrocephalus as well as endocrine dysfunction. Reversible cerebral vasoconstriction syndrome (RCVS) is an unusual condition caused by cerebral arterial vasoconstriction that often presents initially with a thunderclap headache. Frequently, there is some environmental trigger associated with this condition. RCVS more commonly affects women and can induce stroke. Case Description: A 57-year-old female presented to the emergency department with progressive headache and visual changes. Initial workup suggested the patient’s symptoms where related to RCVS but subsequent surgical management of what was presumed to be long standing, compensated hydrocephalus resulted in resolution of the patient’s symptoms. Conclusion: We report, to the best of our knowledge, the first case of aquedutal stenosis and suprasellar arachnoid cyst with concomitant RCVS. The presence of multiple pathologies found on radiologic imaging illustrates the challenges presented by incidental findings and subsequent anchoring bias in medical diagnosis.
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Affiliation(s)
- Samuel Jack Ahmad
- Department of Neurosurgery, Albert Einstein College of Medicine, New York, United States
| | - Richard L. Zampolin
- Department of Radiology, Montefiore Medical Center, Bronx, New York, United States
| | - Allan L. Brook
- Department of Radiology, Montefiore Medical Center, Bronx, New York, United States
| | - Andrew J. Kobets
- Department of Neurosurgery, Montefiore Medical Center, Bronx, New York, United States
| | - David J. Altschul
- Department of Neurosurgery, Montefiore Medical Center, Bronx, New York, United States
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PRES and RCVS: Two Distinct Entities or a Spectrum of the Same Disease? J Stroke Cerebrovasc Dis 2022; 31:106472. [DOI: 10.1016/j.jstrokecerebrovasdis.2022.106472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 03/14/2022] [Accepted: 03/20/2022] [Indexed: 12/24/2022] Open
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Harahsheh E, Gritsch D, Mbonde A, Apolinario M, Hoxworth JM, Demaerschalk BM. Reversible Cerebral Vasoconstriction Syndrome in the Setting of COVID-19 and Pleomorphic Sarcoma: A Case Report. Neurologist 2022; 27:135-138. [PMID: 34855668 PMCID: PMC9066509 DOI: 10.1097/nrl.0000000000000387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Reversible cerebral vasonstriction syndrome (RCVS) is an increasingly recognized clinical and radiologic syndrome. However, it has been rarely reported in the setting of the novel coronavirus disease-2019 (COVID-19) infection or sarcomatous tumors. RCVS might be the initial manifestations of COVID-19 infection or noncatecholamine producing masses including sarcoma. CASE REPORT A 44-year-old male who developed COVID-19-related symptoms followed by rapid onset of severe headaches in the setting of persistently elevated blood pressure (BP). Brain imaging showed multifocal arterial narrowing in the anterior and posterior circulation consistent with RCVS. Serial imaging demonstrated resolution of the arterial narrowing after BP control was achieved with improvement in the patient's headaches. Further investigation for secondary causes of the patient's elevated BP revealed a right renal mass, and the patient underwent right nephrectomy, and the biopsy results confirmed the diagnosis of pleomorphic sarcoma. CONCLUSION Our case suggests a possible association between severe acute respiratory syndrome coronavirus 2 with development of RCVS, but further studies are needed to validate this observation, establish a causal relationship and define a pathophysiological mechanism. Considering tumors other than catecholamine-producing masses as a potential risk factor for developing RCVS might lead to earlier detection and treatment of any underlying malignancy in patients whom the main and sole presentation could be RCVS.
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Sadeghizadeh A, Pourmoghaddas Z, Zandifar A, Tara SZ, Rahimi H, Saleh R, Ramezani S, Ghazavi M, Yaghini O, Hosseini N, Aslani N, Saadatnia M, Vossough A. Reversible Cerebral Vasoconstriction Syndrome and Multisystem Inflammatory Syndrome in Children With COVID-19. Pediatr Neurol 2022; 129:1-6. [PMID: 35124533 PMCID: PMC8730706 DOI: 10.1016/j.pediatrneurol.2021.12.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Multisystem inflammatory syndrome in children (MIS-C) involves multiple organs and shows increased inflammatory markers. Since the onset of the coronavirus disease 2019 (COVID-19) pandemic, several studies have reported the association between severe COVID-19 and MIS-C. Reversible cerebral vasoconstriction syndrome (RCVS) presents with thunderclap headaches and multifocal reversible vasoconstriction on imaging. RCVS is very rare in children. This article reports two cases of pediatric COVID-19 with severe MIS-C and clinical and imaging features indicative of RCVS. METHODS Clinical, laboratory, and imaging data of the patients were reviewed. The diagnosis of RCVS was confirmed based on clinical symptomatology and brain magnetic resonance imaging findings. RESULTS Two pediatric patients with clinical findings compatible with severe MIS-C and hemodynamic compromise presented to the hospital. During their hospitalization course, they developed thunderclap headaches and neurological deficits. Both were receiving vasoactive agents, intravenous immunoglobulin, and immunosuppressants. Imaging studies showed marked multifocal cerebral vasoconstriction in both cases and infarcts in one. The course and management of the patients will be presented. After controlling inflammation and elimination of triggers, both patients were ultimately symptom free upon discharge. Cerebral vasoconstriction had completely resolved on follow-up imaging. CONCLUSIONS Although a variety of symptoms including headaches may be seen in pediatric COVID-19 patients with MIS-C, RCVS should be considered as a differential diagnosis in cases of thunderclap headache accompanied by neurological signs in these patients. Imaging findings and follow-up are also key in establishing the diagnosis.
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Affiliation(s)
- Atefeh Sadeghizadeh
- Department of Pediatric Intensive Care, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Pourmoghaddas
- Department of Pediatric Infectious, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Zandifar
- Division of Neuroradiology, Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Seyedeh Zahra Tara
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Hamid Rahimi
- Department of Pediatric Infectious, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rana Saleh
- Department of Pediatrics, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saba Ramezani
- Department of Pediatrics, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammadreza Ghazavi
- Department of Pediatric Neurology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Yaghini
- Department of Pediatric Neurology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Neda Hosseini
- Department of Pediatric Neurology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nahid Aslani
- Department of Pediatric Rheumatology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Saadatnia
- Department of Neurology, Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Arastoo Vossough
- Division of Neuroradiology, Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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Miller EC. Maternal Stroke Associated With Pregnancy. Continuum (Minneap Minn) 2022; 28:93-121. [PMID: 35133313 PMCID: PMC10101187 DOI: 10.1212/con.0000000000001078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE OF REVIEW This article summarizes current knowledge of the epidemiology, pathophysiology, prevention, and treatment of cerebrovascular disease in pregnant and postpartum women. RECENT FINDINGS Stroke is a leading cause of maternal morbidity and mortality, and most fatal strokes are preventable. Adaptive physiologic changes of pregnancy, including hemodynamic changes, venous stasis, hypercoagulability, and immunomodulation, contribute to increased maternal stroke risk. The highest-risk time period for maternal stroke is the immediate postpartum period. Migraine and hypertensive disorders of pregnancy, including gestational hypertension and preeclampsia, are major risk factors for maternal stroke. Adverse pregnancy outcomes, including gestational hypertension, preeclampsia, preterm delivery, and fetal growth restriction, are important risk factors for cerebrovascular disease later in life. SUMMARY Many catastrophic maternal strokes could be avoided with targeted prevention efforts, early recognition of warning signs, and rapid evaluation of neurologic symptoms. Neurologists play a central role in the care of pregnant patients with cerebrovascular disease, whether acute or chronic, and should be familiar with the unique and complex physiology of pregnancy and its complications, particularly hypertensive disorders of pregnancy.
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Mazzacane F, Mazzoleni V, Scola E, Mancini S, Lombardo I, Busto G, Rognone E, Pichiecchio A, Padovani A, Morotti A, Fainardi E. Vessel Wall Magnetic Resonance Imaging in Cerebrovascular Diseases. Diagnostics (Basel) 2022; 12:diagnostics12020258. [PMID: 35204348 PMCID: PMC8871392 DOI: 10.3390/diagnostics12020258] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/08/2022] [Accepted: 01/14/2022] [Indexed: 01/27/2023] Open
Abstract
Cerebrovascular diseases are a leading cause of disability and death worldwide. The definition of stroke etiology is mandatory to predict outcome and guide therapeutic decisions. The diagnosis of pathological processes involving intracranial arteries is especially challenging, and the visualization of intracranial arteries’ vessel walls is not possible with routine imaging techniques. Vessel wall magnetic resonance imaging (VW-MRI) uses high-resolution, multiparametric MRI sequences to directly visualize intracranial arteries walls and their pathological alterations, allowing a better characterization of their pathology. VW-MRI demonstrated a wide range of clinical applications in acute cerebrovascular disease. Above all, it can be of great utility in the differential diagnosis of atherosclerotic and non-atherosclerotic intracranial vasculopathies. Additionally, it can be useful in the risk stratification of intracranial atherosclerotic lesions and to assess the risk of rupture of intracranial aneurysms. Recent advances in MRI technology made it more available, but larger studies are still needed to maximize its use in daily clinical practice.
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Affiliation(s)
- Federico Mazzacane
- Department of Emergency Neurology and Stroke Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy;
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy;
| | - Valentina Mazzoleni
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, 25121 Brescia, Italy; (V.M.); (A.P.)
- Neurology Unit, Department of Neurological Sciences and Vision, ASST-Spedali Civili, 25123 Brescia, Italy;
| | - Elisa Scola
- Neuroradiology Unit, Department of Radiology, Careggi University Hospital, 50134 Florence, Italy; (E.S.); (S.M.); (I.L.); (G.B.)
| | - Sara Mancini
- Neuroradiology Unit, Department of Radiology, Careggi University Hospital, 50134 Florence, Italy; (E.S.); (S.M.); (I.L.); (G.B.)
| | - Ivano Lombardo
- Neuroradiology Unit, Department of Radiology, Careggi University Hospital, 50134 Florence, Italy; (E.S.); (S.M.); (I.L.); (G.B.)
| | - Giorgio Busto
- Neuroradiology Unit, Department of Radiology, Careggi University Hospital, 50134 Florence, Italy; (E.S.); (S.M.); (I.L.); (G.B.)
| | - Elisa Rognone
- Department of Neuroradiology, IRCCS Mondino Foundation, 27100 Pavia, Italy;
| | - Anna Pichiecchio
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy;
- Department of Neuroradiology, IRCCS Mondino Foundation, 27100 Pavia, Italy;
| | - Alessandro Padovani
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, 25121 Brescia, Italy; (V.M.); (A.P.)
- Neurology Unit, Department of Neurological Sciences and Vision, ASST-Spedali Civili, 25123 Brescia, Italy;
| | - Andrea Morotti
- Neurology Unit, Department of Neurological Sciences and Vision, ASST-Spedali Civili, 25123 Brescia, Italy;
| | - Enrico Fainardi
- Neuroradiology Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50121 Florence, Italy
- Correspondence:
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Yang S, Wellington J, Chen J, Regenhardt RW, Chen AY, Li G, Yan Z, Fu P, Hu Z, Chen Y. Cerebral infarction following bee stings: Case report and literature review. Transl Neurosci 2022; 13:163-171. [PMID: 35860807 PMCID: PMC9267306 DOI: 10.1515/tnsci-2022-0225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 11/15/2022] Open
Abstract
Background To date, only 25 cases of cerebral infarction following a bee or wasp sting have been reported. Due to its rarity, undefined pathogenesis, and unique clinical features, we report a case of a 62-year-old man with progressive cerebral infarction following bee stings, possibly related to vasospasm. Furthermore, we review relevant literature on stroke following bee or wasp stings. Case presentation A 62-year-old retired male presented with progressive ischemic stroke after bee stings to the ear and face. Initial magnetic resonance imaging of the brain showed small punctate infarcts in the left medulla oblongata. Head and neck computed tomography angiography showed significant stenosis in the basilar artery and occlusion in the left V4 vertebral artery. The patient received intravenous alteplase (0.9 mg/kg) without symptomatic improvement. Digital subtraction angiography later demonstrated additional near occlusion in the left posterior cerebral artery (PCA). Thrombectomy was considered initially but was aborted due to hemodynamic instability. Repeated CT brain after 24 h showed acute infarcts in the left parieto-occipital region and left thalamus. The near occluded PCA was found to be patent again on magnetic resonance angiography (MRA) 25 days later. This reversibility suggests that vasospasm may have been the underlying mechanism. Unfortunately, the patient had persistent significant neurological deficits after rehabilitation one year later. Conclusion Cerebral infarction following bee stings is rare. There are several proposed pathophysiological mechanisms. While the natural course of this phenomenon is not well characterized, early diagnosis and treatment are essential. Furthermore, it is important to establish standardized care procedures for this unique entity.
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Affiliation(s)
- Shuiquan Yang
- Department of Neurology and National Advanced Stroke Center, Key Discipline of Traditional Chinese Medicine of Guangdong Province, Foshan Sanshui District People's Hospital, Foshan, Guangdong Province, China
| | - Jack Wellington
- School of Medicine, Cardiff University, Wales, United Kingdom
| | - Juanmei Chen
- The Second Clinical College, Guangzhou Medical University, Guangzhou, China
| | - Robert W Regenhardt
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Alex Y Chen
- Department of Neurology, University Hospital, Case Western Reserve University, Cleveland, United States of America
| | - Guilan Li
- Department of Neurology and National Advanced Stroke Center, Key Discipline of Traditional Chinese Medicine of Guangdong Province, Foshan Sanshui District People's Hospital, Foshan, Guangdong Province, China
| | - Zile Yan
- Department of Neurology and National Advanced Stroke Center, Key Discipline of Traditional Chinese Medicine of Guangdong Province, Foshan Sanshui District People's Hospital, Foshan, Guangdong Province, China
| | - Pingzhong Fu
- Department of Radiology, Foshan Sanshui District People's Hospital, Foshan, Guangdong Province, China
| | - Zhaohui Hu
- Medical Department and National Advanced Stroke Center, Key Discipline of Traditional Chinese Medicine of Guangdong Province, Foshan Sanshui District People's Hospital, Foshan, Guangdong Province, China
| | - Yimin Chen
- Department of Neurology and National Advanced Stroke Center, Key Discipline of Traditional Chinese Medicine of Guangdong Province, Foshan Sanshui District People's Hospital, Foshan, Guangdong Province, China
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Reversible Cerebral Vasoconstriction Syndromes. Stroke 2022. [DOI: 10.1016/b978-0-323-69424-7.00037-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Otiniano-Sifuentes RD, Zelada-Ríos L, Ramírez-Quiñones J, Abanto C, Novoa M, Calle La Rosa P, Flores N, Simbrón-Ribbeck L, Valencia A, Barrientos-Imán D. Diagnostic Value of Thunderclap Headache and Convexal Subarachnoid Hemorrhage for Reversible Cerebral Vasoconstriction Syndrome: A Case Report. Cureus 2021; 13:e20411. [PMID: 35047253 PMCID: PMC8757484 DOI: 10.7759/cureus.20411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2021] [Indexed: 11/08/2022] Open
Abstract
Reversible cerebral vasoconstriction syndrome (RCVS) is an underdiagnosed cause of convexal subarachnoid hemorrhage, characterized by thunderclap headache associated with focal and segmental intracranial vasoconstriction. It can appear complications such as intracerebral hemorrhage, seizures, posterior reversible leukoencephalopathy, or ischemic stroke. Our objective is to present the case of a 51-year-old woman with an RCVS diagnosis, who had a normal digital subtraction angiography at the illness onset. We highlight the high diagnostic value of thunderclap headache and convexal subarachnoid hemorrhage. We also highlight the importance of repeating the angiographic studies in the second week when there is strong diagnostic suspicion.
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Spadaro A, Scott KR, Koyfman A, Long B. Reversible cerebral vasoconstriction syndrome: A narrative review for emergency clinicians. Am J Emerg Med 2021; 50:765-772. [PMID: 34879501 DOI: 10.1016/j.ajem.2021.09.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/23/2021] [Accepted: 09/26/2021] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Reversible Cerebral Vasoconstriction Syndrome (RCVS) is a rare cause of severe headache that can mimic other causes of sudden, severe headache and result in frequent emergency department (ED) visits. OBJECTIVE This narrative review provides an evidence-based update concerning the presentation, evaluation, and management of RCVS for the emergency clinician. DISCUSSION RCVS can present as recurrent, severe headaches that may be maximal in onset, known as a thunderclap headache. Distinguishing from other causes of thunderclap headache such as aneurysmal subarachnoid hemorrhage, cerebral venous thrombosis, and posterior reversible encephalopathy syndrome is challenging. Risk factors for RCVS include use of vasoactive substances, exertion, coughing, showering, sexual activity, and cervical artery dissection. Diagnosis relies on clinical features and imaging. Cerebral catheter digital subtraction angiography (DSA) is considered the gold standard imaging modality; however, computed tomography angiography or magnetic resonance angiography are reliable non-invasive diagnostic modalities. Treatment focuses on avoiding or removing the offending agent, administration of calcium channel blockers such as nimodipine, and reversing anticoagulation if bleeding is present. Although most cases have a benign course and resolve within 3 months, focal subarachnoid hemorrhage, intracerebral hemorrhage, permanent neurologic disability, or death can occur in a minority of cases. CONCLUSIONS Diagnosis and appropriate management of RCVS can be aided by understanding key aspects of the history and examination. The emergency clinician can then obtain indicated imaging, confirming the diagnosis and allowing for appropriate management.
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Affiliation(s)
- Anthony Spadaro
- Department of Emergency Medicine, University of Pennsylvania Health System, Philadelphia, PA, United States.
| | - Kevin R Scott
- Department of Emergency Medicine, University of Pennsylvania Health System, Philadelphia, PA, United States.
| | - Alex Koyfman
- The University of Texas Southwestern Medical Center, Department of Emergency Medicine, 5323 Harry Hines Boulevard, Dallas, TX 75390, United States
| | - Brit Long
- Department of Emergency Medicine, Brooke Army Medical Center, 3841 Roger Brooke Dr, Fort Sam Houston, TX 78234, United States.
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Imai M, Shimoda M, Oda S, Hoshikawa K, Osada T, Aoki R, Sunaga A. Hyperintense posterior cerebral artery sign in patients with reversible cerebral vasoconstriction syndrome. Surg Neurol Int 2021; 12:558. [PMID: 34877044 PMCID: PMC8645486 DOI: 10.25259/sni_1023_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/03/2021] [Indexed: 12/03/2022] Open
Abstract
Background: This study investigated hyperintense vessel signs (HVS) on fluid-attenuated inversion recovery imaging in the P1–2 portions of posterior cerebral arteries (PCAs) as a “hyperintense PCA sign” and HVS of cortical arteries. We retrospectively examined whether these signs would be useful in diagnosing reversible cerebral vasoconstriction syndrome (RCVS) in the acute phase. Methods: Eighty patients with RCVS who underwent initial magnetic resonance imaging (MRI) within 7 days of onset were included in this study. HVS and related clinical factors were examined. Results: On initial MRI of RCVS patients, hyperintense PCA sign and HVS of cortical arteries were seen in 21 cases (26%) and 38 cases (48%), respectively. In patients showing hyperintense PCA sign, vasoconstriction of the A2–3 portion was a significant clinical factor. Conversely, vasoconstriction of the M1 and P1 portions and the presence of white matter hyperintensity on initial and chronic-stage MRI were significantly associated with the presence of HVS in cortical arteries. Conclusion: Because rich collateral flow exists around PCAs, the frequency of hyperintense PCA sign is not high. However, hyperintense PCA sign findings in patients with suspected RCVS offer credible evidence of extreme flow decreases due to vasoconstriction in peripheral PCAs and other arteries associated with the collateral circulation of PCAs. Conversely, HVS in cortical arteries tend to reflect slow antegrade circulation due to vasoconstriction of peripheral vessel and major trunks. Both signs appear useful for auxiliary diagnosis of acute-phase RCVS.
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Affiliation(s)
- Masaaki Imai
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
| | - Masami Shimoda
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
| | - Shinri Oda
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
| | - Kaori Hoshikawa
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
| | - Takahiro Osada
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
| | - Rie Aoki
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
| | - Azusa Sunaga
- Department of Neurosurgery, Tokai University Hachioji Hospital, Ishikawa Machi, Hachioji, Tokyo, Japan
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Chima J, Mullaguri N, Fan T, George P, Newey CR. Cyproheptadine in the treatment of reversible cerebral vasoconstriction syndrome. Acta Neurol Belg 2021; 121:1871-1874. [PMID: 32895901 DOI: 10.1007/s13760-020-01487-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/26/2020] [Indexed: 10/23/2022]
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Wu CH, Lirng JF, Wu HM, Ling YH, Wang YF, Fuh JL, Lin CJ, Ling K, Wang SJ, Chen SP. Blood-Brain Barrier Permeability in Patients With Reversible Cerebral Vasoconstriction Syndrome Assessed With Dynamic Contrast-Enhanced MRI. Neurology 2021; 97:e1847-e1859. [PMID: 34504032 DOI: 10.1212/wnl.0000000000012776] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Blood-brain barrier (BBB) disruption has been proposed to be important in the pathogenesis of reversible cerebral vasoconstriction syndrome (RCVS), but not all patients present an identifiable macroscopic BBB disruption; that is, visible contrast leakage on contrast-enhanced T2 fluid-attenuated inversion recovery imaging. This study aimed to evaluate microscopic BBB permeability and its dynamic change in patients with RCVS. METHODS This prospective cohort implemented 3T dynamic contrast-enhanced MRI. We measured microscopic BBB permeability by determining the whole-brain and white matter hyperintensity (WMH) Ktrans values and evaluated the correlation of whole-brain Ktrans permeability with clinical and vascular measures in transcranial color-coded sonography. RESULTS In total, 176 patients (363 scans) were analyzed and separated into acute (≦30 days) and remission (≧90 days) groups based on the onset-to-examination time. Whole-brain Ktrans values were similar between patients with and without macroscopic BBB disruption in either acute or remission stage. The whole-brain Ktrans was significantly decreased (p < 0.001) from acute to remission stages. The WMH Ktrans was significantly higher than mirror references and decreased from acute to remission stages (p < 0.001). Whole-brain Ktrans correlated with mean pulsatility index (r s = 0.5, p = 0.029), mean resistance index (r s = 0.662, p = 0.002), and distal-to-proximal ratio of resistance index (r s = 0.801, p < 0.001) of M1 segment of middle cerebral arteries at around 10-15 days after onset. The time-trend curve of whole-brain Ktrans depicted dynamic changes during disease course, similar to temporal trends of vasoconstrictions and WMH. DISCUSSION Patients with RCVS presented increased microscopic brain permeability during acute stage, even without discernible macroscopic BBB disruption. The dynamic changes in BBB permeability may be related to impaired cerebral microvascular compliance and WMH formation.
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Affiliation(s)
- Chia-Hung Wu
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jiing-Feng Lirng
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsiu-Mei Wu
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Hsiang Ling
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yen-Feng Wang
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jong-Ling Fuh
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chung-Jung Lin
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Kan Ling
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shuu-Jiun Wang
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Pin Chen
- From the Department of Radiology (C.-H.W., J.-F.L., H.-M.W., C.-J.L., K.L.), Department of Neurology, Neurological Institute (Y.-H.L., Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), and Division of Translational Research, Department of Medical Research (S.-P.C.), Taipei Veterans General Hospital; and Institute of Clinical Medicine (C.-H.W., S.-P.C.), School of Medicine (C.-H.W., J.-F.L., H.-M.W., Y.-H.L., Y.-F.W., J.-L.F., C.-J.L., K.L., S.-J.W., S.-P.C.), and Brain Research Center (Y.-F.W., J.-L.F., S.-J.W., S.-P.C.), National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Boitet R, de Gaalon S, Ducros A. Sindrome da vasocostrizione cerebrale reversibile. Neurologia 2021. [DOI: 10.1016/s1634-7072(21)45780-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Lin B, Wang C, Lu N, Zhang L, Jiang B. Reversible cerebral vasoconstriction syndrome with cerebral infarction caused by acute high-level vapor exposure of ethylene oxide: a case report. BMC Neurol 2021; 21:391. [PMID: 34627175 PMCID: PMC8501561 DOI: 10.1186/s12883-021-02429-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/04/2021] [Indexed: 11/29/2022] Open
Abstract
Background With the increasing production and use of ethylene oxide (EO) worldwide, its explicit bio-toxicity has drawn more and more attention. At present, most studies focus on chronic EO exposure. Studies on acute EO exposure are rare, especially with imaging studies. To our knowledge, this work is the first documented case of reversible cerebral vasoconstriction syndrome (RCVS) with cerebral infarction caused by EO. Case presentation A 58-year-old woman who worked in a capsule production factory got an unprotected acute EO inhalation due to accidental exposure to sterilization gas. She suffered from nausea, vomiting, and severe paroxysmal headaches, but the first brain MRI scan of the patient showed no significant abnormality. Nine days after inhalation, she developed recurrent thunderclap headaches and gradual complete blindness. The follow-up brain MRI, 12 days after inhalation, demonstrated extensive cytotoxic edema. Fifteen days and 21 days after EO (ethylene oxide) inhalation, head MRA and CTA respectively showed diffuse vasoconstriction of cerebral arteries. Fifty-nine days after EO inhalation, head MRA assessed reversibility of the vasoconstriction. According to clinical features and imaging findings, RCVS with cerebral infarction can be diagnosed. The patient was sensitive to light and light reflection but still blind after symptomatic and rehabilitation therapy. Conclusions We report an acute EO exposure case in which the patient suffered from RCVS with cerebral infarction, which previous literature has not reported. This article aimed to raise awareness of encephalopathy after EO acute exposure.
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Affiliation(s)
- Bin Lin
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Chao Wang
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Nan Lu
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Le Zhang
- Department of TCM Rehabilitation, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Biao Jiang
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
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Srinivasan A, Wilson BC, Bear M, Hasan A, Ezzeldin O, Alim S, Elfallal S, Fang X, Ezzeldin M. Intracerebral Hemorrhage and Reversible Cerebral Vasoconstriction Syndrome in a Patient With COVID-19. Cureus 2021; 13:e17408. [PMID: 34589319 PMCID: PMC8459626 DOI: 10.7759/cureus.17408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2021] [Indexed: 11/23/2022] Open
Abstract
Neurological manifestations, such as encephalopathy, intracranial neuropathy, headache, and cognitive decline, are often presented in patients with COVID-19 infection. Since the onset of the pandemic, acute ischemic stroke associated with a hypercoagulable state caused by COVID-19 is increasingly being reported. Hemorrhagic stroke is also reported via poorly understood mechanisms. We report one of the first-ever cases of intraparenchymal hemorrhage, subarachnoid hemorrhage secondary to reversible cerebral vasoconstriction syndrome in a patient with COVID-19 infection.
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Affiliation(s)
- Aswin Srinivasan
- Internal Medicine, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
| | - Branden C Wilson
- Internal Medicine, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
| | - Matthew Bear
- Internal Medicine, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
| | - Ammar Hasan
- Internal Medicine, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
| | - Obadah Ezzeldin
- Diagnostic Radiology, University of Texas Medical Branch, Galveston, USA
| | - Salman Alim
- Critical Care Medicine, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
| | - Samer Elfallal
- Neurosurgery, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
| | - Xiang Fang
- Neurology, University of Texas Medical Branch, Galveston, USA
| | - Mohamad Ezzeldin
- Neuroendovascular Surgery, HCA Houston Kingwood/University of Houston College of Medicine, Kingwood, USA
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Singhal AB. Posterior Reversible Encephalopathy Syndrome and Reversible Cerebral Vasoconstriction Syndrome as Syndromes of Cerebrovascular Dysregulation. Continuum (Minneap Minn) 2021; 27:1301-1320. [PMID: 34618761 DOI: 10.1212/con.0000000000001037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE OF REVIEW This article describes the causes, clinical and imaging features, management, and prognosis of posterior reversible encephalopathy syndrome (PRES) and reversible cerebral vasoconstriction syndrome (RCVS), in which the underlying pathophysiology is related to reversible dysregulation of the cerebral vasculature. RECENT FINDINGS PRES and RCVS are descriptive terms, each bringing together conditions with similar clinical-imaging manifestations. Headache, visual symptoms, seizures, and confusion occur in both syndromes. RCVS is usually heralded by recurrent thunderclap headaches, whereas encephalopathy and seizures are typical in PRES. In PRES, brain imaging shows reversible vasogenic edema that is typically symmetric and located in subcortical regions (mostly posterior predominant). In RCVS, brain imaging is often normal; cerebral angiography shows segmental vasoconstriction-vasodilatation affecting the circle of Willis arteries and their branches. Aside from shared clinical features, significant imaging overlap exists. Both PRES and RCVS can be complicated by ischemic and hemorrhagic brain lesions; angiographic abnormalities frequently occur in PRES and vasogenic edematous lesions in RCVS. Common triggers (eg, eclampsia, vasoconstrictive and chemotherapeutic agents) have been identified. Abnormal cerebrovascular tone and endothelial dysfunction may explain both syndromes. Management of these syndromes includes the removal of identified triggers, symptomatic treatment of headache or seizures, and moderate blood pressure control. Both syndromes are self-limited, with clinical recovery occurring within days to weeks. Long-term deficits and mortality are uncommon. SUMMARY PRES and RCVS have been well characterized and acknowledged to have significant overlap. Advances in our understanding of pathophysiology and risk factors for poor outcome are expected to optimize the management of these not uncommon syndromes.
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Sun D, Mo X, Lv Y, Tian F. Re: Response to correspondence concerning "Posterior reversible encephalopathy syndrome (PRES) associated with COVID-19". J Clin Neurosci 2021; 96:231. [PMID: 34625317 DOI: 10.1016/j.jocn.2021.09.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 09/25/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Dongren Sun
- Department of Neurology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, China.
| | - Xin Mo
- Department of Neurosurgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, China.
| | - Yefan Lv
- Department of Neurology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, China.
| | - Fafa Tian
- Department of Neurology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, China.
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Arandela K, Samudrala S, Abdalkader M, Anand P, Daneshmand A, Dasenbrock H, Nguyen T, Ong C, Takahashi C, Shulman J, Babi MA, Sivakumar S, Shah N, Jain S, Anand S, Nobleza COS, Shekhar S, Venkatasubramanian C, Salahuddin H, Taqi MA, Nour HA, Nofar JB, Cervantes-Arslanian AM. Reversible Cerebral Vasoconstriction Syndrome in Patients with Coronavirus Disease: A Multicenter Case Series. J Stroke Cerebrovasc Dis 2021; 30:106118. [PMID: 34560378 PMCID: PMC8445803 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106118] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/07/2021] [Accepted: 09/10/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND AND OBJECTIVES RCVS (Reversible Cerebral Vasoconstrictive Syndrome) is a condition associated with vasoactive agents that alter endothelial function. There is growing evidence that endothelial inflammation contributes to cerebrovascular disease in patients with coronavirus disease 2019 (COVID-19). In our study, we describe the clinical features, risk factors, and outcomes of RCVS in a multicenter case series of patients with COVID-19. MATERIALS AND METHODS Multicenter retrospective case series. We collected clinical characteristics, imaging, and outcomes of patients with RCVS and COVID-19 identified at each participating site. RESULTS Ten patients were identified, 7 women, ages 21 - 62 years. Risk factors included use of vasoconstrictive agents in 7 and history of migraine in 2. Presenting symptoms included thunderclap headache in 5 patients with recurrent headaches in 4. Eight were hypertensive on arrival to the hospital. Symptoms of COVID-19 included fever in 2, respiratory symptoms in 8, and gastrointestinal symptoms in 1. One patient did not have systemic COVID-19 symptoms. MRI showed subarachnoid hemorrhage in 3 cases, intraparenchymal hemorrhage in 2, acute ischemic stroke in 4, FLAIR hyperintensities in 2, and no abnormalities in 1 case. Neurovascular imaging showed focal segment irregularity and narrowing concerning for vasospasm of the left MCA in 4 cases and diffuse, multifocal narrowing of the intracranial vasculature in 6 cases. Outcomes varied, with 2 deaths, 2 remaining in the ICU, and 6 surviving to discharge with modified Rankin scale (mRS) scores of 0 (n=3), 2 (n=2), and 3 (n=1). CONCLUSIONS Our series suggests that patients with COVID-19 may be at risk for RCVS, particularly in the setting of additional risk factors such as exposure to vasoactive agents. There was variability in the symptoms and severity of COVID-19, clinical characteristics, abnormalities on imaging, and mRS scores. However, a larger study is needed to validate a causal relationship between RCVS and COVID-19.
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Affiliation(s)
- Kristine Arandela
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States
| | - Shilpa Samudrala
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States
| | - Mohamad Abdalkader
- Departments of Radiology, Boston University School of Medicine and Boston Medical Center, United States
| | - Pria Anand
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States
| | - Ali Daneshmand
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States; Departments of Neurosurgery, Boston University School of Medicine and Boston Medical Center, United States
| | - Hormuzdiyar Dasenbrock
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States; Departments of Neurosurgery, Boston University School of Medicine and Boston Medical Center, United States
| | - Thanh Nguyen
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States; Departments of Radiology, Boston University School of Medicine and Boston Medical Center, United States
| | - Charlene Ong
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States; Departments of Neurosurgery, Boston University School of Medicine and Boston Medical Center, United States
| | - Courtney Takahashi
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States; Departments of Neurosurgery, Boston University School of Medicine and Boston Medical Center, United States
| | - Julie Shulman
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States
| | - Marc Alain Babi
- Departments of Neurology and Neurosurgery, University of Florida, United States
| | - Sanjeev Sivakumar
- Department of Neurology, University of South Carolina Greenville School of Medicine, United States
| | - Neel Shah
- Department of Neurology, University of South Carolina Greenville School of Medicine, United States
| | - Sandip Jain
- Department of Neurology, University of South Carolina Greenville School of Medicine, United States
| | - Samyuktha Anand
- Department of Neurology, Prisma Health-Upstate, United States
| | | | - Shashank Shekhar
- Departments Neurology and Neurosurgery, University of Mississippi Medical Center, United States
| | | | | | - Muhammad A Taqi
- Department of Neurology, Los Robles Medical Center, United States
| | | | - Justin B Nofar
- Department of Neurology, Henry Ford Health System, United States
| | - Anna M Cervantes-Arslanian
- Departments of Neurology, Boston University School of Medicine and Boston Medical Center, United States; Departments of Neurosurgery, Boston University School of Medicine and Boston Medical Center, United States; Departments of Medicine Infectious Diseases, Boston University School of Medicine and Boston Medical Center, United States.
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