133 results on '"Nzwalo H"'
Search Results
2. Konzo and continuing cyanide intoxication from cassava in Mozambique
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Cliff, J., Muquingue, H., Nhassico, D., Nzwalo, H., and Bradbury, J.H.
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- 2011
- Full Text
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3. Does STN-DBS for PD increases suicidality? A meta-analysis of STN-DBS clinical trials: 1233
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Teodoro, T., Nzwalo, H., Guedes, L., Coelho, M., Rosa, M. M., and Ferreira, J. J.
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- 2014
4. Suicide behaviors in antiParkinsonian drug clinical trials for Parkinsonʼs disease: 840
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Teodoro, T., Nzwalo, H., Guedes, L., Coelho, M., Rosa, M. M., and Ferreira, J. J.
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- 2014
5. Does inclusion in DBS clinical trials for Parkinsonʼs disease promote suicidal behaviors?: 726
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Teodoro, T., Nzwalo, H., Guedes, L., Coelho, M., Rosa, M. M., and Ferreira, J. J.
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- 2014
6. Ischemic stroke in patients under anticoagulation therapy: new options, old problems!: EP1218
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Nzwalo, H., Almeida, R., Fidalgo, A., Ferreira, F., and Basilio, C.
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- 2014
7. RISK FACTORS FOR EARLY READMISSION OF ISCHEMIC STROKE PATIENTS IN A PERIPHERAL PORTUGUESE HOSPITAL
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Nzwalo, H., Taveira, I., Vicente, C., and Sousa e Costa, J.
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Introduction:Stroke mortality decreased over the last years due improved quality of acute care. The immediate post-discharge phase is complex and if not properly planned, medical complications can occur leading to Hospital Readmission (HR). Identification of these factors is important to prevent hospital readmissions and improve long-term prognosis. Material and Methods: Retrospective study of a population representative consecutive acute ischemic stroke (AIS) survivors (2012-2015) in Alentejo, Portugal. Logistic regression analysis was used to identify sociodemographic (age, residence, gender), clinical (Charlson Comorbidity Index, discharge mRS, Bamford type, etiology) and process of care (discharge destination) predictors of very early(u2264 7 days) and early (7- 30 days) HR.Results: Of the 780 patients discharged, 424 (54%) males, mean age 77, 1,9% (n=15) were very early readmitted, mostly due to infections (n=10) and 3,7% (n=29) early readmitted, mainly for non-infectious causes (n=16). Predictors of very early HR were discharge to nursing home (OR=13.32, CI 2.59-68.44, p=.02), particularly when only infections causes of HR were considered (OR=16.47, CI 1.78-152.66, p=.14). Discharge to nursing home and specific AIS aetiologies - paraneoplastic (OR=20.97, CI 3.00-146.79, p=.002), undetermined aetiology (OR=6.41,CI 1.41-29.12, p=.016) increased the likelihood of early HR.Discussion and conclusions: Our results suggest that the quality of care during the transition period and/or the persistence of unsolved medical problems may account for very early and early HR among AIS survivors.
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- 2017
8. Clinical Course and Outcomes of Small Supratentorial Intracerebral Hematomas
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Behrouz, R., Misra, V., Godoy, D.A., Topel, C.H., Masotti, L., Klijn, C.J.M., Smith, C.J., Parry-Jones, A.R., Slevin, M.A., Silver, B., Willey, J.Z., Vallejo, J. Masjuan, Nzwalo, H., Popa-Wagner, A., Malek, A.R., Hafeez, S., Napoli, M. Di, Behrouz, R., Misra, V., Godoy, D.A., Topel, C.H., Masotti, L., Klijn, C.J.M., Smith, C.J., Parry-Jones, A.R., Slevin, M.A., Silver, B., Willey, J.Z., Vallejo, J. Masjuan, Nzwalo, H., Popa-Wagner, A., Malek, A.R., Hafeez, S., and Napoli, M. Di
- Abstract
Item does not contain fulltext, BACKGROUND AND PURPOSE: Intracerebral hemorrhage (ICH) volume, particularly if >/=30 mL, is a major determinant of poor outcome. We used a multinational ICH data registry to study the characteristics, course, and outcomes of supratentorial hematomas with volumes <30 mL. METHODS: Basic characteristics, clinical and radiological course, and 30-day outcomes of these patients were recorded. Outcomes were categorized as early neurological deterioration (END), hematoma expansion, Glasgow Outcome Scale (GOS), and in-hospital death. Poor outcome was defined as composite of in-hospital death and severe disability (GOS = 3). Comparison was conducted based on hemorrhage location. Logistic regression using dichotomized outcome scales was applied to determine predictors of poor outcome. RESULTS: Among 375 cases of supratentorial ICH with volumes <30 mL, expansion and END rates were 19.2% and 7.5%, respectively. Hemorrhage growth was independently associated with END (odds ratio: 28.7, 95% confidence interval [CI]: 8.51-96.5; P < .0001). Expansion rates did not differ according to ICH location. Overall, 13.9% (exact binomial 95% CI: 10.5-17.8) died in the hospital and 29.1% (CI: 24.5-34.0) had severe disability at 30 days; there was a cumulative poor outcome rate of 42.9% (CI: 37.9-48.1). Age, admission Glasgow Coma Scale, intraventricular extension, and END were independently associated with poor outcome. There was no difference in poor outcome rates between lobar and deep locations (40.2% versus 43.8%, P = .56). CONCLUSION: Patients with supratentorial ICH <30 mL have high rates of poor outcome at 30 days, regardless of location. Nearly 1 in 5 hematomas <30 mL expands, leading to END or death.
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- 2017
9. Clinical Course and Outcomes of Small Supratentorial Intracerebral Hematomas.
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Behrouz, R, Misra, V, Godoy, DA, Topel, CH, Masotti, L, Klijn, CJM, Smith, CJ, Parry-Jones, AR, Slevin, MA, Silver, B, Willey, JZ, Masjuán Vallejo, J, Nzwalo, H, Popa-Wagner, A, Malek, AR, Hafeez, S, Di Napoli, M, Behrouz, R, Misra, V, Godoy, DA, Topel, CH, Masotti, L, Klijn, CJM, Smith, CJ, Parry-Jones, AR, Slevin, MA, Silver, B, Willey, JZ, Masjuán Vallejo, J, Nzwalo, H, Popa-Wagner, A, Malek, AR, Hafeez, S, and Di Napoli, M
- Abstract
Intracerebral hemorrhage (ICH) volume, particularly if ≥30 mL, is a major determinant of poor outcome. We used a multinational ICH data registry to study the characteristics, course, and outcomes of supratentorial hematomas with volumes <30 mL.Basic characteristics, clinical and radiological course, and 30-day outcomes of these patients were recorded. Outcomes were categorized as early neurological deterioration (END), hematoma expansion, Glasgow Outcome Scale (GOS), and in-hospital death. Poor outcome was defined as composite of in-hospital death and severe disability (GOS ≤ 3). Comparison was conducted based on hemorrhage location. Logistic regression using dichotomized outcome scales was applied to determine predictors of poor outcome.Among 375 cases of supratentorial ICH with volumes <30 mL, expansion and END rates were 19.2% and 7.5%, respectively. Hemorrhage growth was independently associated with END (odds ratio: 28.7, 95% confidence interval [CI]: 8.51-96.5; P < .0001). Expansion rates did not differ according to ICH location. Overall, 13.9% (exact binomial 95% CI: 10.5-17.8) died in the hospital and 29.1% (CI: 24.5-34.0) had severe disability at 30 days; there was a cumulative poor outcome rate of 42.9% (CI: 37.9-48.1). Age, admission Glasgow Coma Scale, intraventricular extension, and END were independently associated with poor outcome. There was no difference in poor outcome rates between lobar and deep locations (40.2% versus 43.8%, P = .56).Patients with supratentorial ICH <30 mL have high rates of poor outcome at 30 days, regardless of location. Nearly 1 in 5 hematomas <30 mL expands, leading to END or death.
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- 2017
10. Unilateral opercular infarction presenting with Foix-Chavany-Marie syndrome
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Sa, F., primary, Menezes Cordeiro, I., additional, Mestre, S., additional, and Nzwalo, H., additional
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- 2014
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11. Prevalence and motivations of vaginal practices in Tete Province, Mozambique
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Francois, Isabelle, Bagnol, Brigitte, Chersich, Matthew, Mbofana, Francisco, Mariano, Esmeralda, Nzwalo, H., Kenter, Elise, Mbona Tumwesigye, Nazarius, Hull, Terence, Martin Hilber, Adriane, Francois, Isabelle, Bagnol, Brigitte, Chersich, Matthew, Mbofana, Francisco, Mariano, Esmeralda, Nzwalo, H., Kenter, Elise, Mbona Tumwesigye, Nazarius, Hull, Terence, and Martin Hilber, Adriane
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Vaginal practices have been linked with an increase in risk for HIV transmission and other harms. In 2007, a household survey of 919 women was conducted in Tete province, Mozambique, as part of the World Health Organization Multicountry Study on Gender, Sexuality, and Vaginal Practices. Women aged 18 to 60 years old were interviewed to determine prevalence and motivations for vaginal practices. A large range of frequently used practices was identified. Nearly 80% of women reported three or more current practices, and virtually all had used at least three practices in their lifetime. Elongation of the vaginal labia minora was universal (99% of women), while a quarter stated they had made small vaginal cuts or incisions at least once. Ninety-two percent of women also reported ever use of intravaginal cleansing, and insertion of substances in the vagina was practiced by 72%. Around half (48%) reported ingestion of substances to affect the vagina, mostly to heat, tighten, or loosen the vagina. Application of substances on the genitalia (16%) and steaming (15%) were less popular. To prepare for sexual intercourse, women reported products were commonly applied, ingested, inserted, or steamed. Pregnancy, delivery, and postpartum were also associated with ingestion (26%), steaming (39%), and cutting (32%). Adoption of microbicides and condom use may be influenced by vaginal practices. HIV-prevention messages and interventions, including future microbicides, need to take into account the high prevalence of vaginal practices and motivations for their use. Further attention needs to be given to potentially harmful practices in HIV-prevention efforts in Mozambique.
- Published
- 2012
12. Konzo and continuing cyanide intoxication from cassava in Mozambique
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Bradbury, James, Cliff, Julie, Muquingue, Humberto, Nhassico, Dulce, Nzwalo, H., Bradbury, James, Cliff, Julie, Muquingue, Humberto, Nhassico, Dulce, and Nzwalo, H.
- Abstract
In Mozambique, epidemics of the cassava-associated paralytic disease, konzo, have been reported in association with drought or war: over 1100 cases in 1981, over 600 cases in 1992-1993, and over 100 cases in 2005. Smaller epidemics and sporadic cases have also been reported.Large epidemics have occurred at times of agricultural crisis, during the cassava harvest, when the population has been dependent on a diet of insufficiently processed bitter cassava. Konzo mostly affects women of child-bearing age and children over 2. years of age.When measured, serum or urinary thiocyanate concentrations, indicative of cyanide poisoning, have been high in konzo patients during epidemics and in succeeding years. Monitoring of urinary thiocyanate concentrations in schoolchildren in konzo areas has shown persistently high concentrations at the time of the cassava harvest. Inorganic sulphate concentrations have been low during and soon after epidemics.Programmes to prevent konzo have focused on distributing less toxic varieties of cassava and disseminating new processing methods, such as grating and the flour wetting method. Attention should be given to the wider question of agricultural development and food security in the regions of Africa where dependence on bitter cassava results in chronic cyanide intoxication and persistent and emerging konzo.
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- 2011
13. Late cerebrovascular complications of radiation therapy for pediatric primary central nervous system tumors
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Passos, J., primary, Nzwalo, H., additional, Marques, J., additional, Azevedo, A., additional, Nunes, S., additional, and Salgado, D., additional
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- 2013
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14. Eye of the tiger sign in a patient with levodopa-induced motor complications
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Pires, C., primary, Nzwalo, H., additional, Reimão, S., additional, Guedes, L.C., additional, Rosa, M.M., additional, and Coelho, M., additional
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- 2013
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15. Clinico-epidemiological features of cerebral venous thrombosis in Algarve
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Nzwalo, H., primary, Rodrigues, F., additional, Carneiro, P., additional, Arez, L., additional, Ferreira, F., additional, and Basilio, C., additional
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- 2013
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16. Neurological disorders in hospitalized HIV infected patients: Experience from a European Central Hospital
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Nzwalo, H., primary, Pazos, R., additional, Botas, J., additional, Aleixo, M.J., additional, and Águas, M.J., additional
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- 2013
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17. Acute brachial diparesis
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Lopes, R., primary, Nzwalo, H., additional, Malaia, L., additional, and Ferreira, F., additional
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- 2013
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18. Palatal tremor in relation to brainstem tumour involvement
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Marques, J., primary, Nzwalo, H., additional, Azevedo, A., additional, and Salgado, D., additional
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- 2013
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19. Sleep-related eating disorder secondary to zolpidem
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Nzwalo, H., primary, Ferreira, L., additional, Peralta, R., additional, and Bentes, C., additional
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- 2013
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20. Acute encephalitis as initial presentation of primary HIV infection
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Nzwalo, H., primary, Anon, R. P., additional, and Aguas, M. J., additional
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- 2012
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21. Delayed hypoxic-ischemic leukoencephalopathy
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Nzwalo, H., primary, Sa, F., additional, Cordeiro, I., additional, Ferreira, F., additional, and Basilio, C., additional
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- 2011
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22. Central nervous system vasculitis presenting as acute psychotic disorder
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Fontes, H., primary, Nzwalo, H., additional, Mendes, S., additional, Fernandes, S., additional, Ponte, G., additional, and Pereira, M., additional
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- 2011
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23. P02-149 - Central nervous system vasculitis presenting as acute psychotic disorder
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Fontes, H., Nzwalo, H., Mendes, S., Fernandes, S., Ponte, G., and Pereira, M.
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- 2011
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24. Establishment of an induced pluripotent cell line (ABCRIi001-A) from an elderly female for ageing research.
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Esteves F, Brito D, Rajado AT, Silva N, Apolónio J, Roberto VP, Andrade RP, Calado S, Faleiro ML, Matos C, Marques N, Marreiros A, Nzwalo H, Pais S, Palmeirim I, Simãoa S, Joaquim N, Miranda R, Pêgas A, Raposo DM, Sardo A, Araújo I, Nóbrega C, Castelo-Branco P, and Bragança J
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- Female, Humans, Aged, Cell Line, Cellular Reprogramming, Cell Differentiation, Sendai virus genetics, Induced Pluripotent Stem Cells metabolism, Induced Pluripotent Stem Cells cytology, Aging, Leukocytes, Mononuclear cytology, Leukocytes, Mononuclear metabolism
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Human induced pluripotent stem cells (hiPSCs) hold promises to model and understand human diseases, including those associated with ageing. Here, we describe ABCRIi001-A, a hiPSC line generated from peripheral blood mononuclear cells (PBMCs) of a 79-year-old female enrolled in a study for development of an ageing score (ALFA Score). PBMCs were reprogrammed using three Sendai virus-based reprogramming vectors (hKOS, hc-Myc, and hKlf4). ABCRIi001-A showed normal morphology and karyotype, viral clearance, absence of genomic aberrations, and their pluripotency was confirmed by expression of pluripotency-related markers and their ability to differentiate into the three germ layers. ABCRIi001-A is valuable for ageing-related studies., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jose Braganca reports financial support was provided by Regional Development and Coordinating Commission of the Algarve. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
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25. Possible role of mycotoxins, malnutrition and MECP2 dysregulation in nodding syndrome.
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Catamo D, da Costa MH, Buque H, and Nzwalo H
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Competing Interests: Declaration of competing interest None.
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- 2024
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26. From Spinal Ependymoma to Superficial Siderosis: A Bottom to Top Cause of Progressive Neurological Deterioration.
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Valente D, Gil I, Nzwalo H, and Felix C
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Superficial siderosis (SS) is an infrequent condition characterized by hemosiderin deposition in the central nervous system, resulting from chronic subarachnoid hemorrhage, often linked to dural mater diseases. Through a case report of a 50-year-old male with severe sensorineural hearing loss and newly diagnosed epilepsy, we explore SS triggered by a spinal ependymoma, diagnosed via resonance magnetic imaging (MRI). This case highlights the necessity of comprehensive neuroaxis imaging to identify treatable etiologies. The complexity of SS, with its varied clinical presentations, necessitates early detection and a multidisciplinary treatment approach. Despite limited treatment options and the uncertain efficacy of therapies like deferiprone, early intervention is crucial for mitigating irreversible neurological damage and enhancing patient prognosis., Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)
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- 2024
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27. Prognostic factors associated with disability in a cohort of neuromyelitis optica spectrum disorder and MOG-associated disease from a nationwide Portuguese registry.
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Moura J, Samões R, Sousa AP, Figueiroa S, Mendonça T, Abreu P, Guimarães J, Melo C, Sousa R, Soares M, Correia AS, Marques IB, Perdigão S, Alves I, Felgueiras H, Nzwalo H, Mendes I, Almeida V, Boleixa D, Carneiro P, Neves E, Silva AM, Sá MJ, and Santos E
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- Humans, Female, Male, Portugal epidemiology, Adult, Prognosis, Middle Aged, Cohort Studies, Disease Progression, Autoantibodies blood, Persons with Disabilities, Disability Evaluation, Aquaporin 4 immunology, Young Adult, Follow-Up Studies, Aged, Recurrence, Neuromyelitis Optica epidemiology, Registries, Myelin-Oligodendrocyte Glycoprotein immunology
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Introduction: Neuromyelitis optica spectrum disorders (NMOSD) and MOG-associated disease (MOGAD) are an increasingly recognized group of demyelinating disorders of the central nervous system. Previous studies suggest that prognosis is predicted by older age at onset, number of relapses, the severity of the first attack and autoantibody status., Objective: To study prognostic factors associated with disability progression and additional relapses in the 3-year follow-up of a national NMOSD/MOGAD cohort., Results: Out of 180 of the initial Portuguese cohort, data on 82 patients was available at the end of the follow-up period (2019-2022). Two patients died. Twenty (24.4%) patients had one or more attack in this period (25 attacks in total), mostly transverse myelitis (TM) (56.0%) or optic neuritis (32.0%). MOGAD was significantly associated with a monophasic disease course (p = 0.03), with milder attacks (p = 0.01), while AQP4 + NMOSD was associated with relapses (p = 0.03). The most common treatment modalities were azathioprine (38.8%) and rituximab (18.8%). AQP4 + NMOSD more frequently required chronic immunosuppressive treatment, particularly rituximab (p = 0.01). Eighteen (22.5%) had an EDSS ≥6 at the end of the follow-up. AQP4 + NMOSD (p < 0.01) and the occurrence of transverse myelitis (TM) during disease (p = 0.04) correlated with an EDSS≥6 at the end of the follow-up period. MOGAD was significantly associated with an EDSS<6 (p < 0.01), and MOG+ cases that reached an EDSS>6 were significantly older (64.0 ± 2.8 versus 31.0 ± 17.1, p = 0.017). A bivariate logistic regression model including the serostatus and TM attacks during disease history successfully predicted 72.2% of patients that progressed to an EDSS≥6., Conclusion: This study highlights that myelitis predict increased disability (EDSS≥6) in NMOSD/MOGAG and AQP4 positivity is associated with increased disability., Competing Interests: Declaration of competing interest Authors declare no conflict of interest regarding this work., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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28. Antithrombotic Treatment for Stroke Prevention in Cervical Artery Dissection: The STOP-CAD Study.
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Yaghi S, Shu L, Mandel D, Leon Guerrero CR, Henninger N, Muppa J, Affan M, Ul Haq Lodhi O, Heldner MR, Antonenko K, Seiffge D, Arnold M, Salehi Omran S, Crandall R, Lester E, Lopez Mena D, Arauz A, Nehme A, Boulanger M, Touze E, Sousa JA, Sargento-Freitas J, Barata V, Castro-Chaves P, Brito MT, Khan M, Mallick D, Rothstein A, Khazaal O, Kaufmann JE, Engelter ST, Traenka C, Aguiar de Sousa D, Soares M, Rosa S, Zhou LW, Gandhi P, Field TS, Mancini S, Metanis I, Leker RR, Pan K, Dantu V, Baumgartner K, Burton T, Von Rennenberg R, Nolte CH, Choi R, MacDonald J, Bavarsad Shahripour R, Guo X, Ghannam M, Almajali M, Samaniego EA, Sanchez S, Rioux B, Zine-Eddine F, Poppe A, Fonseca AC, Baptista MF, Cruz D, Romoli M, De Marco G, Longoni M, Keser Z, Griffin K, Kuohn L, Frontera J, Amar J, Giles J, Zedde M, Pascarella R, Grisendi I, Nzwalo H, Liebeskind DS, Molaie A, Cavalier A, Kam W, Mac Grory B, Al Kasab S, Anadani M, Kicielinski K, Eltatawy A, Chervak L, Chulluncuy-Rivas R, Aziz Y, Bakradze E, Tran TL, Rodrigo-Gisbert M, Requena M, Saleh Velez F, Ortiz Gracia J, Mudassani V, de Havenon A, Vishnu VY, Yaddanapudi S, Adams L, Browngoehl A, Ranasinghe T, Dunston R, Lynch Z, Penckofer M, Siegler J, Mayer S, Willey J, Zubair A, Cheng YK, Sharma R, Marto JP, Mendes Ferreira V, Klein P, Nguyen TN, Asad SD, Sarwat Z, Balabhadra A, Patel S, Secchi T, Martins S, Mantovani G, Kim YD, Krishnaiah B, Elangovan C, Lingam S, Quereshi A, Fridman S, Alvarado A, Khasiyev F, Linares G, Mannino M, Terruso V, Vassilopoulou S, Tentolouris V, Martinez-Marino M, Carrasco Wall V, Indraswari F, El Jamal S, Liu S, Alvi M, Ali F, Sarvath M, Morsi RZ, Kass-Hout T, Shi F, Zhang J, Sokhi D, Said J, Simpkins AN, Gomez R, Sen S, Ghani M, Elnazeir M, Xiao H, Kala N, Khan F, Stretz C, Mohammadzadeh N, Goldstein E, and Furie K
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- Humans, Platelet Aggregation Inhibitors therapeutic use, Anticoagulants therapeutic use, Fibrinolytic Agents therapeutic use, Retrospective Studies, Hemorrhage chemically induced, Arteries, Treatment Outcome, Carotid Artery, Internal, Dissection complications, Carotid Artery, Internal, Dissection drug therapy, Stroke epidemiology, Stroke etiology, Stroke prevention & control, Ischemic Stroke drug therapy, Aortic Dissection, Atrial Fibrillation complications
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Background: Small, randomized trials of patients with cervical artery dissection showed conflicting results regarding optimal stroke prevention strategies. We aimed to compare outcomes in patients with cervical artery dissection treated with antiplatelets versus anticoagulation., Methods: This is a multicenter observational retrospective international study (16 countries, 63 sites) that included patients with cervical artery dissection without major trauma. The exposure was antithrombotic treatment type (anticoagulation versus antiplatelets), and outcomes were subsequent ischemic stroke and major hemorrhage (intracranial or extracranial hemorrhage). We used adjusted Cox regression with inverse probability of treatment weighting to determine associations between anticoagulation and study outcomes within 30 and 180 days. The main analysis used an as-treated crossover approach and only included outcomes occurring with the above treatments., Results: The study included 3636 patients (402 [11.1%] received exclusively anticoagulation and 2453 [67.5%] received exclusively antiplatelets). By day 180, there were 162 new ischemic strokes (4.4%) and 28 major hemorrhages (0.8%); 87.0% of ischemic strokes occurred by day 30. In adjusted Cox regression with inverse probability of treatment weighting, compared with antiplatelet therapy, anticoagulation was associated with a nonsignificantly lower risk of subsequent ischemic stroke by day 30 (adjusted hazard ratio [HR], 0.71 [95% CI, 0.45-1.12]; P =0.145) and by day 180 (adjusted HR, 0.80 [95% CI, 0.28-2.24]; P =0.670). Anticoagulation therapy was not associated with a higher risk of major hemorrhage by day 30 (adjusted HR, 1.39 [95% CI, 0.35-5.45]; P =0.637) but was by day 180 (adjusted HR, 5.56 [95% CI, 1.53-20.13]; P =0.009). In interaction analyses, patients with occlusive dissection had significantly lower ischemic stroke risk with anticoagulation (adjusted HR, 0.40 [95% CI, 0.18-0.88]; P
interaction =0.009)., Conclusions: Our study does not rule out the benefit of anticoagulation in reducing ischemic stroke risk, particularly in patients with occlusive dissection. If anticoagulation is chosen, it seems reasonable to switch to antiplatelet therapy before 180 days to lower the risk of major bleeding. Large prospective studies are needed to validate our findings., Competing Interests: Disclosures Disclosures provided by Dr Nguyen in compliance with American Heart Association annual Journal Editor Disclosure Questionnaire are available at https://www.ahajournals.org/editor-coi-disclosures. Dr Arnold reports compensation from Boehringer Ingelheim, AstraZeneca, Bayer, Bristol-Myers Squibb, Covidien, Daiichi Sankyo, Novartis, Sanofi, Pfizer, Medtronic, Novo Nordisk, and Amgen for consultant services. Dr Lester reports a provisional patent for Methods and compositions for disrupting tau aggregates. Dr Touze reports compensation from Elsevier for other services and employment by Caen. J.E. Kaufman reports grants from Goldschmidt Jacobson-Stiftung. Dr Traenka reports travel support from Bayer Healthcare. Dr Aguiar de Sousa reports compensation from Daiichi Sankyo, Bayer, AstraZeneca, Johnson & Johnson, and Fundação Bial for other services; compensation from the University of British Columbia for data and safety monitoring services; compensation from Organon & Co for consultant services. Dr Rosa reports grants from Merck Sharp & Dohme Corporation. Dr Field reports compensation from HLS Therapeutics, AstraZeneca Canada, and Roche for consultant services; service as a board member for Destine Health; and compensation from the Canadian Medical Protective Association for expert witness services; and grants from Bayer. Dr Leker reports compensation from Medtronic, Ischemaview, Bayer, Abbott Diabetes Care, Biogen, Janssen Biotech, and Boehringer Ingelheim for other services. Dr Nolte reports compensation from Daiichi Sankyo Europe GmbH, Boehringer Ingelheim, Pfizer, Bristol-Myers Squibb, and Alexion Pharmaceuticals for consultant services; and compensation from AstraZeneca, Abbott Canada, Deutsches Zentrum für Neurodegenerative Erkrankungen, Novartis, Portola Pharmaceuticals, Deutsches Zentrum für Herz-Kreislaufforschung, and Novartis for other services. Dr Poppe reports grants from Foundation Brain Canada, Heart and Stroke Foundation of Canada, and Stryker; and compensation from Roche for other services. Dr Liebeskind reports compensation from Medtronic, Genentech, Cerenovus, Stryker, and Rapid Medical Ltd, for consultant services. B. Mac Grory reports grants from the National Institutes of Health; employment by Duke University Medical Center; compensation from Bayer for other services; grants from the American Heart Association, Duke Bass Connections, and the Duke Office of Physician Scientist Development. Dr Al Kasab reports compensation from Stryker for other services and employment by Medical University of South Carolina. Dr Kicielinski reports compensation from Stryker, Penumbra Inc, Medtronic, and MicroVention Inc, for other services; travel support from MicroVention Inc; and employment by Medical University of South Carolina and Elsevier. Dr de Havenon reports stock options in TitinKM and Certus; grants from the National Institutes of Health; and compensation from Novo Nordisk for consultant services. Dr Siegler reports grants from Philips and employment by the University of Chicago. Dr Willey reports compensation from Edwards Lifesciences Corporation and Abbott Fund for end point review committee services; compensation from Uptodate for other services; and compensation from the Abbott Laboratories for consultant services. Dr Sharma reports a provisional patent for a stroke etiology classifier algorithm and grants from the National Institutes of Health Clinical Center. Dr Martins reports compensation from Pfizer, Medtronic, Servier Affaires Medicales, Daiichi Sankyo, Bayer, Novo Nordisk, Novartis, Penumbra Inc, and Boehringer Ingelheim for other services. Dr Simpkins reports grants from the National Institutes of Health. Dr Stretz reports grants from Massachusetts General Hospital. Dr Furie reports compensation from Janssen Biotech for consultant services. The other authors report no conflicts- Published
- 2024
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29. Severe neurocysticercosis in a quaternary hospital from Mozambique: Case series analysis.
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Buque H, Vaz D, Lorenzo E, Tané S, Sidat M, and Nzwalo H
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Background: Neurocysticercosis (NCC) is severe and leading global cause of morbidity and mortality. The disease presents with a variety of clinical presentations from focal to diffuse neurological symptoms. Despite being an endemic country, there are no studies describing the clinico-epidemiological characteristics of NCC in Mozambique. Herein, we describe a consecutive cases series of NCC from the national reference Hospital in Maputo, capital of Mozambique., Methods: Consecutive cases of NCC diagnosed during a 3-year period (January/2020-December/2022) were retrieved from the institutional clinical files and imaging database., Results: Six cases of NCC were identified, with mean age of 43.1 years (range 26-66). Four were males (66.6 %). The median time from the beginning of clinical manifestations to the diagnosis was 6 months (range 3-18 months). All patients presented with severe parenchymal NCC, with seizures (n = 5, 83 %) being the most common manifestation. Other clinical manifestations were dementia (n = 1) and hydrocephalus (n = 1). The imaging showed multiple lesions at different stages, with half (n = 3) of them showing the coexistence of nodular calcified lesions at earlier stages (vesicular, colloidal and granular stages). Patients were treated with anthelminthic drugs, corticosteroids and anticonvulsants and no deaths to report. The 3rd month modified Rankin scale was ≤ 2 in 83 % of patients., Conclusion: In our case series, patients with NCC presented very late, with severe advanced stage disease, with multiple coexistent short and long-term brain lesions. These findings can be explained eventually because of the Maputo Central Hospital being national referral center receiving commonly more severe cases. Studies aiming to clarify the diagnosis pathways/barriers and NCC awareness among medical doctors working at primary and secondary health care level is mandatory to assess the real burden of NCC and implement timely diagnosis and care of patients affected by this neglected disease., (Copyright © 2023 Elsevier B.V. All rights reserved.)
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- 2023
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30. Non-ketotic hyperglycaemia induced occipital reflex focal seizures.
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Buque H, Catamo D, Felix C, André A, Gil I, and Nzwalo H
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A myriad of neurological manifestations can occur in association with ketotic and non ketotic hyperglycaemic states. Contrary to diabetic coma, which is a universal complication under relatively established metabolic circumstances, the pathophysiology beyond hyperglycaemic-associated positive neurological manifestations, including seizures, remains to be elucidated. The occurrence of symptomatic focal epilepsy as a manifestation of diabetes-related hyperglycaemia is seldom reported. Herein, we present a case of focal epilepsy with alternating positive and negative neurological manifestations as the initial manifestation of diabetes-related hyperglycaemia. The electroencephalogram confirmed the diagnosis of focal occipital seizures, and the brain magnetic resonance imaging depicted the associated typical transient imaging findings in the occipital lobe. Seizures were refractory to antiepileptics, and symptomatic control was achieved after achieving normoglycemia. On follow-up, complete clinical and imaging recovery occurred. Reflex focal epilepsy in the context of hyperglycaemic states is a rare condition, and the possibility of misdiagnosis is likely high. As reported in similar cases, seizures can be resistant to antiepileptics. An important message to highlight is that seizures associated with hyperglycaemic status can be resistant to antiepileptic treatment and only cease with glycaemic control., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)
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- 2023
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31. Neutrophil-to-leukocyte ratio and admission glycemia as predictors of short-term death in very old elderlies with lobar intracerebral hemorrhage.
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Pereira M, Batista R, Marreiros A, and Nzwalo H
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Background: The incidence of spontaneous intracerebral hemorrhage (SICH) is highest in very old elderlies (≥75 years). The increasing use of antithrombotic drugs is shifting the epidemiology of SICH towards predominance of lobar subtype, suggesting an incremented propensity of bleeding associated with underlying cerebral amyloid angiopathy. With population aging and antithrombotic use, a parallel raise of proportion of lobar SICH is occurring. Improvement of prognostication in this specific age group and SICH type is needed. Routine blood biomarkers can contribute to prediction of short-term mortality after SICH., Objective: Our aim was to investigate the contribution of routine blood biomarkers for short-term mortality (30-days) in elderly patients with lobar SICH., Methods: Retrospective analysis of consecutive 130 patients with ≥ 75 years and lobar SICH. The outcome was 30-day mortality. Logistic regression analysis was used to investigate whether admission routine biomarkers can be used as predictors., Results: The case fatality was 40.8%. Admission glycaemia level, neutrophil to lymphocyte ratio and mean platelet volume were significantly different between groups (p = 0.001, p = 0.024, p = 0.038, respectively). There was no significant difference in all other routine biomarkers. On multivariate analysis, admission higher mean BG level (odds ratio [OR]: 1.010, 95% confidence interval [CI]: 1.001-1.019, p = 0.026) and neutrophil to lymphocyte ratio (OR: 1.070, 95% CI: 1.008-1.136, p = 0.027) emerged as predictors., Conclusion: In very old patients with lobar SICH, higher BG level and neutrophil to lymphocyte ratio are associated with increased risk of short-term death., Competing Interests: There are no conflicts of interest., (Copyright: © 2023 Brain Circulation.)
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- 2023
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32. Internuclear ophthalmoplegia, skew deviation and nystagmus from facial colliculus infarction: small lesion big trouble.
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Valente DV, de Almeida TD, Gil I, Nzwalo H, and Félix AC
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- Humans, Fourth Ventricle, Infarction, Ocular Motility Disorders etiology, Nystagmus, Pathologic etiology, Nystagmus, Pathologic pathology
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- 2023
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33. Extensive and bilateral anterior cerebral stroke mimicking basilar artery occlusion.
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Macedo M, Florêncio A, Frias C, Nzwalo H, and Fidalgo AP
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- Humans, Basilar Artery diagnostic imaging, Stroke diagnostic imaging, Vertebrobasilar Insufficiency diagnostic imaging
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- 2023
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34. Isolated vocal cord paresis as a presentation of acute ischemic stroke.
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Valente D, Gil I, Jacinto F, Freitas L, Nzwalo H, and Felix C
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- Humans, Electromyography, Paresis diagnosis, Paresis etiology, Vocal Cords, Vocal Cord Paralysis complications, Vocal Cord Paralysis diagnosis, Ischemic Stroke
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- 2023
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35. Organizational Factors Determining Access to Reperfusion Therapies in Ischemic Stroke-Systematic Literature Review.
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Botelho A, Rios J, Fidalgo AP, Ferreira E, and Nzwalo H
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- Humans, Reperfusion, Thrombectomy, Treatment Outcome, Thrombolytic Therapy, Ischemic Stroke, Brain Ischemia therapy, Stroke drug therapy
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Background: After onset of acute ischemic stroke (AIS), there is a limited time window for delivering acute reperfusion therapies (ART) aiming to restore normal brain circulation. Despite its unequivocal benefits, the proportion of AIS patients receiving both types of ART, thrombolysis and thrombectomy, remains very low. The organization of a stroke care pathway is one of the main factors that determine timely access to ART. The knowledge on organizational factors influencing access to ART is sparce. Hence, we sought to systematize the existing data on the type and frequency of pre-hospital and in-hospital organizational factors that determine timely access to ART in patients with AIS., Methodology: Literature review on the frequency and type of organizational factors that determine access to ART after AIS. Pubmed and Scopus databases were the primary source of data. OpenGrey and Google Scholar were used for searching grey literature. Study quality analysis was based on the Newcastle-Ottawa Scale., Results: A total of 128 studies were included. The main pre-hospital factors associated with delay or access to ART were medical emergency activation practices, pre-notification routines, ambulance use and existence of local/regional-specific strategies to mitigate the impact of geographic distance between patient locations and Stroke Unit (SU). The most common intra-hospital factors studied were specific location of SU and brain imaging room within the hospital, and the existence and promotion of specific stroke treatment protocols. Most frequent factors associated with increased access ART were periodic public education, promotion of hospital pre-notification and specific pre- and intra-hospital stroke pathways. In specific urban areas, mobile stroke units were found to be valid options to increase timely access to ART., Conclusions: Implementation of different organizational factors and strategies can reduce time delays and increase the number of AIS patients receiving ART, with most of them being replicable in any context, and some in only very specific contexts.
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- 2022
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36. Predictors of pneumonia in patients with acute spontaneous intracerebral hemorrhage in Algarve, Southern Portugal.
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Soares R, Fernandes A, Taveira I, Marreiros A, and Nzwalo H
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- Aged, Cerebral Hemorrhage complications, Cerebral Hemorrhage epidemiology, Female, Humans, Male, Portugal epidemiology, Retrospective Studies, Delirium complications, Pneumonia complications, Pneumonia epidemiology, Stroke complications
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Introduction: Following the hyperacute phase of spontaneous intracerebral hemorrhage (SICH), the severest form of stroke, pneumonia emerges as the leading cause of morbidity and mortality. Prevention of stroke associated pneumonia (SAP) is fundamental to improve the prognosis of SICH patients., Aim: Identify clinical, sociodemographic and process of care factors associated with occurrence of SAP after SICH in Algarve, southern Portugal., Methods: Observational, retrospective study of community representative consecutive case series of patients with SICH admitted to the sole public hospital in the region. Logistic regression was used to identify predictors of SAP after SICH., Results: A total of 525 patients were included. The mean age was 71 ( ± 13) years and 64% were men. SAP occurred in 165 (31.5%). Lower Glasgow Coma Scale score (GCS score): ≤ 8 (OR= 2.087; 95% CI= [1.027;4.424]; p = 0.042) and GCS 9-12 (OR= 1.775; 95% CI= [1.030;3.059]; p = 0.039); prolonged emergency room stay (OR= 8.066; 95%CI=[3.082;21.113]; p < 0.001) and hyperactive delirium (OR=2.860; 95% CI= [1.661;4.925]; p < 0.001) increased the likelihood of SAP. Being younger, ≤ 59 years (OR= 0.391; 95% CI= [0.168; 0.911]; p = 0.029) and 60-71 years (OR= 0.389; 95% CI= [0.185; 0.818]; p = 0.013); and having less severe SICH/intracerebral hemorrhage score (ICH score) ≤ 2 (OR=0.601; 95% CI= [0.370; 0.975]; p = 0.039), decreased the risk of SAP., Conclusion: After SICH, SAP occurs in approximately a third of patients. Non preventable (admission severity, ageing) and potentially preventable (prolonged emergency room stay, hyperactive delirium) determine the occurrence of SAP. Intensification of preventive intervention in high-risk patients, delirium prevention and improvement of the process of care can potentially reduce the occurrence of SAP after SICH., (Copyright © 2022 Elsevier B.V. All rights reserved.)
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- 2022
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37. Measurement tools to assess activities of daily living in patients with Parkinson's disease: A systematic review.
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Bouça-Machado R, Fernandes A, Ranzato C, Beneby D, Nzwalo H, and Ferreira JJ
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Introduction: Parkinson's disease (PD) is associated with a progressive inability to accomplish essential activities of daily living (ADL) resulting in a loss of autonomy and quality of life. Accurate measurement of ADL in PD is important to monitor disease progression and optimize care. Despite its relevance, it is still unclear which measurement instruments are the most suitable for evaluating ADL in people with PD., Objective: To identify and critically appraise which measurement instruments have been used to assess ADL in PD., Methods: A systematic review was conducted using the databases CENTRAL, MEDLINE, and PEDro from their inception to October 2021 to identify all observational and experimental studies conducted in PD or atypical parkinsonism that included an ADL assessment. Titles and abstracts were screened independently by two authors. The clinimetric properties of the measurement instruments were assessed, and the instruments were classified as "recommended," "suggested," or "listed.", Results: A total of 129 articles were included, with 37 measurement instruments used. The Unified Parkinson's Disease Rating Scale (UPDRS), the Schwab & England ADL scale (S&E scale), the Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS), the Barthel Index, the Lawton-Brody Instrumental Activities of Daily Living Scale, the Functional Independence Measure (FIM) and the Alzheimer's Disease Cooperative Study - ADL (ADCS-ADL) scale were the seven most frequently cited measurement instruments. Of these, only two included an assessment of basic and instrumental ADL., Conclusion: MDS-UPDRS and the S&E scale were the only two scales that could be classified as recommended. For the MDS-UPDRS, either the full version or only Part II, which is focused on ADL, can be used. Future studies should explore the use of wearable devices to assess ADL remotely and more continuously., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Bouça-Machado, Fernandes, Ranzato, Beneby, Nzwalo and Ferreira.)
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- 2022
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38. Impact of process of care in the short-term mortality in non-severe intracerebral hemorrhage in southern Portugal.
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Fernandes A, Taveira I, Soares R, Marreiros A, and Nzwalo H
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- Hematoma complications, Humans, Portugal epidemiology, Retrospective Studies, Cerebral Hemorrhage complications, Cerebral Hemorrhage diagnostic imaging, Cerebral Hemorrhage therapy, Stroke complications
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Introduction: Patients with spontaneous intracerebral hemorrhage (SICH) face the worse functional and vital prognosis among all stroke subtypes. In cases of severe SICH, therapeutic inertia or nihilism complicates meaningful identification of outcome predictors. Therefore, we sought to investigate clinic-radiological and process of care predictors of short-term mortality in patients with mild to moderate SICH., Patients and Methods: Observational retrospective community representative consecutive case series of patients from Algarve, southern Portugal. Logistic regression was used to identify predictors of short-term (30-day) death., Results: Mortality was 23.9% (111/464). Most important predictors of death were unconsciousness at admission (OR = 12.392, 95% CI = 3.816-40.241, p < 0.001), hospital arrival ≥ 6 h after stroke onset (OR = 2.842, 95% CI = 1.380-5.852, p =.005), hematoma volume > 30 cc/cm3 (OR = 3.295, 95% CI 0 1.561-6.953, p =.002), intraventricular extension (OR = 2.885, 95% CI = 1.457-5.712, p =.002) and ≥ 24 h in the Emergency Department (OR = 19.675, 95% CI = 3.682-34.125, p =.009). Stroke Unit (SU) admission reduced the likelihood of death (OR = 0.293, 95% CI = 0.137-0.682, p =.002)., Conclusion: The observed mortality is high. Apart from the traditional clinic-radiological factors, in mild to moderate SICH, process of care related factors have strong impact on mortality. These results highlight the need of continuous improvement of SICH care to improve the prognosis., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
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- 2022
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39. Admission Severity of Atrial-Fibrillation-Related Acute Ischemic Stroke in Patients under Anticoagulation Treatment: A Systematic Review and Meta-Analysis.
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Garcia C, Silva M, Araújo M, Henriques M, Margarido M, Vicente P, Nzwalo H, and Macedo A
- Abstract
Background: In non-valvular-associated atrial fibrillation (AF), direct oral anticoagulants (DOAC) are as effective as vitamin K antagonists (VKA) for the prevention of acute ischemic stroke (AIS). DOAC are associated with decreased risk and severity of intracranial hemorrhage. It is unknown if different pre-admission anticoagulants impact the prognosis of AF related AIS (AF-AIS). We sought to analyze the literature to assess the association between pre-admission anticoagulation (VKA or DOAC) and admission severity of AF-AIS. Methods: A Systematic literature search (PubMed and ScienceDirect) between January 2011 to April 2021 was undertaken to identify studies describing the outcome of AF-AIS. Results: A total of 128 articles were identified. Of 9493 patients, 1767 were on DOAC, 919 were on therapeutical VKA, 792 were on non-therapeutical VKA and 6015 were not anticoagulated. In comparison to patients without anticoagulation, patients with therapeutical VKA and under DOAC presented with less severe stroke (MD −1.69; 95% CI [−2.71, −0.66], p = 0.001 and MD −2.96; 95% Cl [−3.75, −2.18], p < 0.00001, respectively). Patients with non-therapeutical VKA presented with more severe stroke (MD 1.28; 95% Cl [0.45, 2.12], p = 0.003). Conclusions: In AF-AIS, patients under therapeutical VKA or DOAC have reduced stroke severity on admission in comparison to patients without any anticoagulation, with higher magnitude of protection for DOAC.
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- 2022
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40. Etiology and clinical characteristics of pediatric non-neoplastic posterior reversible encephalopathy: systematic review.
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Jordão M, Raimundo P, Jacinto R, Garrido D, Martins J, Estevens R, Nogueira J, Fernandes E, Macedo A, and Nzwalo H
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Although more commonly seen in adult population, posterior reversible encephalopathy syndrome (PRES) can also be observed in pediatric patients. The etiopathogenesis of pediatric PRES is poorly understood, and the available evidence comes mostly from childhood cancer. Analysis of the sociodemographic and clinical characteristics of the different noncancer-related types can improve the understanding of pediatric PRES., Methods: Systematic review of characteristics and outcome of noncancer pediatric PRES. Primary sources of investigation were identified and selected through Pubmed and Scopus databases. The research was complemented by reference search in relevant publications. Study protocol was registered (Prospero CRD42020165798)., Results: We identified 449 cases of noncancer pediatric PRES from 272 studies, median age 10 (newborn to 17 years), 49.9% girls. The 4 most common groups of conditions were renal 165 (36.7%), hematologic 84 (18.7%), autoimmune 64 (14.3%), and cardiovascular 28 (6.2%) disorders. The 4 most prevalent precipitants identified were hypertensive crisis 119 (26.5%), corticosteroids 56 (12.5%), immunosuppression drugs 44 (9.8%), and biologic drugs 14 (3.1%). Clinical presentations included seizures 100 (22.3%), headaches 22 (4.9%), encephalopathy 17 (3.8%), visual disturbances 6 (1.3%), and focal deficit 3 (0.7%). The distribution of lesions was (n = 380): combined anterior/posterior circulation (40.8%), isolated posterior circulation (24.1%), anterior circulation (6.2%), and deep structures (1.6%). Residual neurological deficits occurred in about 1 out 10 cases., Conclusion: Pediatric PRES differs from the adult in etiology, precipitants, and clinical manifestations. Renal diseases predominate, acute raised blood pressure is less frequent, and cortical deficits are rarer. In addition, the proportion of patients with combined anterior/posterior circulation was higher. Permanent neurological sequels can occur., Competing Interests: The authors report no conflicts of interest., (Copyright © 2022 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of PBJ-Associação Porto Biomedical/Porto Biomedical Society. All rights reserved.)
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- 2022
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41. [Endovascular Treatment in Acute Ischemic Stroke: "Urgency in Reducing Asymmetries"].
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Nzwalo H, Botelho A, Gil I, Baptista A, and Fidalgo AP
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- Humans, Thrombolytic Therapy, Treatment Outcome, Ischemic Stroke, Brain Ischemia complications, Brain Ischemia therapy, Endovascular Procedures, Stroke therapy
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- 2022
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42. Stroke due to Percheron Artery Occlusion: Description of a Consecutive Case Series from Southern Portugal.
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Macedo M, Reis D, Cerullo G, Florêncio A, Frias C, Aleluia L, Drago J, Nzwalo H, and Fidalgo AP
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The artery of Percheron (AOP) is an abnormal variant of the arterial supply of the thalamus. Stroke caused by AOP occlusion is seldom reported. AOP leads to bilateral thalamic and rostral midbrain infarct presenting with unspecific manifestations. There are few descriptions of case series of stroke caused by AOP. We sought to review the clinicoradiological characteristics of AOP infarction from Algarve, Southern Portugal. Eight consecutive cases were retrospectively identified by searching the electronic clinical charts, as well as the stroke Unit database (2015-2020). Sociodemographic (age and gender) and clinicoradiological characteristics (etiological classification, admission severity, manifestations, and short- and long-term prognoses) were retrieved. The corresponding frequency of AOP infarction was 0.17% (95% confidence interval: 0.05-0.28). The mean age was 67.1 (range: 60-80) years. The range of stroke severity evaluated assessed by the National Institute of Health Stroke Scale ranged from 5 to 23 (median = 7.5). None of the patients receive acute ischemic stroke reperfusion treatment. AOP patterns were isolated bilateral paramedian thalamic ( n = 2), bilateral paramedian and anterior thalamic ( n = 2), and bilateral paramedian thalamic with rostral midbrain ( n = 4). Two patients (20%) died on the short term (30 days). At hospital discharge, six patients had functional disability of ≤2 on the modified Rankin scale. In the follow-up at 6 months, half ( n = 3) of the survivors had persistent hypersomnia and two had vascular dementia. Stroke from AOP presents with variable clinical and radiological presentations and patients do not receive alteplase. The short-term survivor and the long-term functional independency can be compromised after AOS infarct., Competing Interests: Conflict of Interest None declared., (Association for Helping Neurosurgical Sick People. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ).)
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- 2022
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43. Prediction of short-term prognosis in elderly patients with spontaneous intracerebral hemorrhage.
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Batista A, Osório R, Varela A, Guilherme P, Marreiros A, Pais S, and Nzwalo H
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- Aged, Aged, 80 and over, Female, Glasgow Coma Scale, Humans, Male, Prognosis, Risk Factors, Cerebral Hemorrhage complications, Cerebral Hemorrhage epidemiology, Hematoma complications, Hematoma epidemiology
- Abstract
Aim: The incidence of spontaneous intracerebral hemorrhage (SICH) increases with age. Data on SICH mortality in the very old are sparse. We aimed to describe the predictors of 30-day SICH mortality in the very elderly in southern Portugal., Methods: A total of 256 community representative SICH patients aged ≥ 75 years (2009-2016) were included. Multiple logistic regression was used to identify predictors of 30-day mortality., Results: Mean age was 82.1 years; 57.4% males. The 30-day case fatality was 38.7%. The frequency of patients taking anticoagulants (29.3% vs. 11.5%); comatose (46.9% vs. 2.5%); with hematoma volume ≥ 30 mL (64.6% vs. 13.4%); intraventricular dissection (78.8% vs. 27.4%) was higher in deceased patients (p < 0.05). Survivors were more often admitted to stroke unit (SU) (68.2 vs. 31.3%) and had lower mean admission glycaemia values (p < 0.05). The likelihood of death was increased in patients with higher admission hematoma volume (≥ 30 mL) (OR: 8.817, CI 1.753-44.340, p = 0.008) and with prior to SICH history of ≥ 2 hospitalizations OR = 1.022, CI 1.009-1.069, p = 0.031). Having higher Glasgow coma scale score, OR: 0.522, CI 0.394-0.692, p < 0.001, per unit was associated with reduced risk of death. Age was not an independent risk factor of short-term death., Conclusions: The short-term mortality is high in very elderly SICH. Prior to SICH history of hospitalization, an indirect and gross marker of coexistent functional reserve, not age per se, increases the risk of short-term death. Other predictors of short-term death are potentially manageable reinforcing the message against any defeatist attitude toward elderly patients with SICH., (© 2021. European Geriatric Medicine Society.)
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- 2021
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44. Occurrence of Guillain-Barre Syndrome During the Initial Symptomatic Phase of COVID-19 Disease: Coincidence or Consequence?
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Seixas R, Campoamor D, Lopes J, Bernardo T, Nzwalo H, and Pascoalinho D
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Viral infections are frequently present before the clinical manifestation of Guillain-Barre syndrome (GBS). Multiple studies on coronaviruses have shown that these viruses have neurotropic characteristics, and their molecular mimicry can induce inflammatory demyelinating neuropathy. Herein, we describe a case of a GBS in an 85-year-old patient infected with SARS-CoV-2, manifested with acute progressive symmetric ascending quadriparesis, urinary dysautonomia, and dysphagia, who responded well to treatment with intravenous human immunoglobulin., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2021, Seixas et al.)
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- 2021
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45. Determinants of Quality of Life after Stroke in Southern Portugal: A Cross Sectional Community-Based Study.
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Lourenço E, Sampaio MRDM, Nzwalo H, Costa EI, and Ramos JLS
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Introduction: the perception of Quality of Life (QoL) has been used to evaluate the treatment and evolution of several pathologies. QoL evaluation allows a better understanding of the patient and his adaptation to the disease. An observational, community-based and descriptive correlational study was carried out to analyze stroke survivors' perception of QoL., Methods: consecutive case-series of stroke survivors (≥3 months) followed in a single public primary health center ("Tavira Primary Health Centre") from Algarve, southern Portugal. The Portuguese version of the World Health Organization Quality of life instrument was administered in 102 stroke survivors., Results: Perception of QoL was associated ( p < 0.05) with specific sociodemographic (age, sex, marital status, academic training), economic (monthly family income) and clinical factors (number of vascular risk factors, type of stroke, evolution, chronic mRankin score). On multivariate analysis, chronic mRankin score on physical (R
2 = 0.406; F = 8.757; p < 0.001), psychological (R2 = 0.286; F = 5.536; p < 0.001) and general domain (R2 = 0.357; F = 7.287; p < 0.001); and family income (R2 = 0.160; F = 3.156; p < 0.005) on environmental domain, emerged as predictors of QoL., Conclusion: Different socio-demographic, economic and health factors are associated with post-stroke QoL. Description of QoL contributes to the overall evaluation of the impact of stroke on health and should be a priority for health professionals.- Published
- 2021
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46. Neuromyelitis optica spectrum disorders: A nationwide Portuguese clinical epidemiological study.
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Santos E, Rocha AL, Oliveira V, Ferro D, Samões R, Sousa AP, Figueiroa S, Mendonça T, Abreu P, Guimarães J, Sousa R, Melo C, Correia I, Durães J, Sousa L, Ferreira J, de Sá J, Sousa F, Sequeira M, Correia AS, André AL, Basílio C, Arenga M, Mendes I, Marques IB, Perdigão S, Felgueiras H, Alves I, Correia F, Barroso C, Morganho A, Carmona C, Palavra F, Santos M, Salgado V, Palos A, Nzwalo H, Timóteo A, Guerreiro R, Isidoro L, Boleixa D, Carneiro P, Neves E, Silva AM, Gonçalves G, Leite MI, and Sá MJ
- Subjects
- Adult, Aquaporin 4, Autoantibodies, Epidemiologic Studies, Female, Humans, Myelin-Oligodendrocyte Glycoprotein, Portugal epidemiology, Neuromyelitis Optica epidemiology
- Abstract
Introduction: Neuromyelitis optica spectrum disorder (NMOSD) is a rare disorder in which astrocyte damage and/or demyelination often cause severe neurological deficits., Objective: To identify Portuguese patients with NMOSD and assess their epidemiological/clinical characteristics., Methods: This was a nationwide multicenter study. Twenty-four Portuguese adult and 3 neuropediatric centers following NMOSD patients were included., Results: A total of 180 patients met the 2015 Wingerchuk NMOSD criteria, 77 were AQP4-antibody positive (Abs+), 67 MOG-Abs+, and 36 seronegative. Point prevalence on December 31, 2018 was 1.71/100,000 for NMOSD, 0.71/100,000 for AQP4-Abs+, 0.65/100,000 for MOG-Abs+, and 0.35/100,000 for seronegative NMOSD. A total of 44 new NMOSD cases were identified during the two-year study period (11 AQP4-Abs+, 27 MOG-Abs+, and 6 seronegative). The annual incidence rate in that period was 0.21/100,000 person-years for NMOSD, 0.05/100,000 for AQP4-Abs+, 0.13/100,000 for MOG-Abs+, and 0.03/100,000 for seronegative NMOSD. AQP4-Abs+ predominated in females and was associated with autoimmune disorders. Frequently presented with myelitis. Area postrema syndrome was exclusive of this subtype, and associated with higher morbidity/mortality than other forms of NMOSD. MOG-Ab+ more often presented with optic neuritis, required less immunosuppression, and had better outcome., Conclusion: Epidemiological/clinical NMOSD profiles in the Portuguese population are similar to other European countries., (Copyright © 2021. Published by Elsevier B.V.)
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- 2021
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47. Stroke-Associated Cortical Deafness: A Systematic Review of Clinical and Radiological Characteristics.
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Silva G, Gonçalves R, Taveira I, Mouzinho M, Osório R, and Nzwalo H
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Background: Stroke is the leading cause of cortical deafness (CD), the most severe form of central hearing impairment. CD remains poorly characterized and perhaps underdiagnosed. We perform a systematic review to describe the clinical and radiological features of stroke-associated CD., Methods: PubMed and the Web of Science databases were used to identify relevant publications up to 30 June 2021 using the MeSH terms: "deafness" and "stroke", or "hearing loss" and "stroke" or "auditory agnosia" and "stroke"., Results: We found 46 cases, caused by bilateral lesions within the central auditory pathway, mostly located within or surrounding the superior temporal lobe gyri and/or the Heschl's gyri (30/81%). In five (13.51%) patients, CD was caused by the subcortical hemispheric and in two (0.05%) in brainstem lesions. Sensorineural hearing loss was universal. Occasionally, a misdiagnosis by peripheral or psychiatric disorders occurred. A few (20%) had clinical improvement, with a regained oral conversation or evolution to pure word deafness (36.6%). A persistent inability of oral communication occurred in 43.3%. A full recovery of conversation was restricted to patients with subcortical lesions., Conclusions: Stroke-associated CD is rare, severe and results from combinations of cortical and subcortical lesions within the central auditory pathway. The recovery of functional hearing occurs, essentially, when caused by subcortical lesions.
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- 2021
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48. Mirrored-Self Misidentification in a Patient With Probable Alzheimer Dementia.
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Fernandes C, Taveira I, and Nzwalo H
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- Aged, Humans, Male, Alzheimer Disease complications, Delusions etiology
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- 2021
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49. Gender differences in long-term mortality after spontaneous intracerebral hemorrhage in southern Portugal.
- Author
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Teles J, Martinez J, Mouzinho M, Guilherme P, Marreiros A, and Nzwalo H
- Abstract
Introduction: the prognosis of spontaneous intracerebral hemorrhage (SICH) remains poor. Understanding gender differences can clarify the clinico-epidemiological and process of care related factors that influence SICH prognosis. We analyzed the long-term gender differences of mortality after SICH in Algarve, southern Portugal., Patients and Methods: analysis of consecutive community representative of SICH survivors (2009-2015). Logistic regression analysis and Kaplan-Meier method was used to assess gender differences on 1-year mortality and survival. We further analyzed if differences exist between 4 age and gender based subgroups (women <75 years, women ≥75 years, men <75 years, men ≥75 years)., Results: a total of 285 survivors were analyzed; majority men (66.3%). Women were 2 years older on average. Overall case fatality was 11.6% [CI: 8.3-15.8]. A non-statistically significant ( P = .094) higher case-fatality rate was observed in women; men were more frequently admitted to stroke unit; women had more often poor functional outcome or modified Rankin scale (mRS) ≥3. Predictors of death were: being women with ≥ 75 years, in-hospital pneumonia and hospital discharge mRS ≥3. The likelihood of death was higher in women ≥75 years (OR = 2.91 [1.23-8.1], P = .035) in comparison to women <75 years and men ≥75 years. Women <75 years had the longest survivor time, whereas women ≥75 years the shortest survivor time ( P < .001)., Conclusion: gender and age interact to influence long-term mortality after SICH. Women ≥75 years are at increased risk of death and have reduced survival after SICH in southern Portugal. Further studies are needed to clarify the biological or social factors contributing for the poor prognosis in the very old women in the region., (Copyright © 2021 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of PBJ-Associação Porto Biomedical/Porto Biomedical Society. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
50. Addressing Stroke Admissions During COVID-19 Pandemic Beyond Fear and Constraining Health Factors.
- Author
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Nzwalo H and Logallo N
- Subjects
- Fear, Humans, Pandemics, SARS-CoV-2, COVID-19, Stroke epidemiology
- Published
- 2021
- Full Text
- View/download PDF
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