GUILHERME DIOGO SILVA

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Instituto Central, Hospital das Clínicas, Faculdade de Medicina

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  • article 9 Citação(ões) na Scopus
    Cannabidiol in the Treatment of Epilepsy: A Focused Review of Evidence and Gaps
    (2020) SILVA, Guilherme Diogo; GUERRA, Felipe Borelli Del; LELIS, Maira de Oliveira; PINTO, Lecio Figueira
    Approximately one third of epilepsy patients do not become seizure free with antiseizure medications. This treatment gap motivates research for new therapeutic options, such as cannabidiol (CBD). CBD differs from other cannabis derivatives because of its consistent efficacy and lack of a psychoactive effect. CBD can be recommended as adjunctive therapy in patients with Dravet and Lennox-Gastaut syndromes. The most common adverse effects (AEs) are drowsiness, reduced appetite, diarrhea, and vomiting. Transaminase elevation is the most common AE that leads to CBD discontinuation. Coadministration with valproate may increase the risk of hepatotoxicity. The combination of CBD and clobazam may increase both the effectiveness and the risk of AEs associated with these drugs. The most striking gaps in knowledge are the efficacy and optimal dose of CBD for adults with focal epilepsies, the long-term safety of CBD use, and strategies to improve access to CBD for people living with epilepsy.
  • article 7 Citação(ões) na Scopus
    Management of central nervous system demyelinating diseases during the coronavirus disease 2019 pandemic: a practical approach
    (2020) APOSTOLOS-PEREIRA, Samira Luisa; SILVA, Guilherme Diogo; DISSEROL, Caio Cesar Diniz; FEO, Lucas Bueno; MATOS, Aline de Moura Brasil; SCHOEPS, Vinicius Andreoli; GOMES, Ana Beatriz Ayroza Galvao Ribeiro; BOAVENTURA, Mateus; MENDES, Maria Fernanda; CALLEGARO, Dagoberto
    Background: The novelcoronavirus disease 2019(COVID-19) pandemic poses a potential threattopatients with autoimmune disorders, including multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD). Such patients are usually treated with immunomodulatory or immunosuppressive agents, which may tamper with the organism's normal response to infections. Currently, noconsensus has been reached on how to manage MS and NMOSD patients during the pandemic. Objective: To discuss strategies to manage those patients. Methods: We focus on how to 1) reduce COVID-19 infection risk, such as social distancing, telemedicine, and wider interval between laboratory testing/imaging; 2) manage relapses, such as avoiding treatment of mild relapse and using oral steroids; 3) manage disease-modifying therapies, such as preference for drugs associated with lower infection risk (interferons, glatiramer, teriflunomide, and natalizumab) and extended-interval dosing of natalizumab, when safe; 4) individualize the chosen MS induction-therapy (anti-CD20 monoclonal antibodies, alemtuzumab, and cladribine); 5) manage NMOSD preventive therapies, including initial therapy selection and current treatment maintenance; 6) manage MS/NMOSD patients infected with COVID-19. Conclusions: In the future, real-world case series of MS/NMOSD patients infected with COVID-19 will help us define the best management strategies. For the time being, we rely on expert experience and guidance.