Claiton Viegas Brenol

ORCID: 0000-0003-0229-7912
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Research Areas
  • Rheumatoid Arthritis Research and Therapies
  • Autoimmune and Inflammatory Disorders Research
  • Systemic Lupus Erythematosus Research
  • Chronic Lymphocytic Leukemia Research
  • Lymphoma Diagnosis and Treatment
  • Tuberculosis Research and Epidemiology
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Systemic Sclerosis and Related Diseases
  • Spondyloarthritis Studies and Treatments
  • Monoclonal and Polyclonal Antibodies Research
  • Reproductive System and Pregnancy
  • Viral Infections and Immunology Research
  • Musculoskeletal synovial abnormalities and treatments
  • Biosimilars and Bioanalytical Methods
  • Healthcare during COVID-19 Pandemic
  • Immunodeficiency and Autoimmune Disorders
  • Bone and Joint Diseases
  • T-cell and Retrovirus Studies
  • Infectious Diseases and Tuberculosis
  • Fungal Infections and Studies
  • Urticaria and Related Conditions
  • Leprosy Research and Treatment
  • Hepatitis C virus research
  • Otitis Media and Relapsing Polychondritis
  • Complement system in diseases

Hospital de Clínicas de Porto Alegre
2016-2025

Universidade Federal do Rio Grande do Sul
2015-2024

University of Pennsylvania
2022

UniBrasil Centro Universitário
2019

Hospital de Clínicas
2007-2016

University of Coimbra
2015

Sociedade Brasileira de Ortopedia e Traumatologia
2013-2014

Brazilian Medical Association
2013

Coordenação de Aperfeicoamento de Pessoal de Nível Superior
2011

University of Rio Grande and Rio Grande Community College
2011

ABSTRACT Introduction: The 14 entrustable professional activities (EPAs) approved by the American College of Rheumatology (ACR) were developed to be “the comprehensive set tasks or responsibilities that any practicing rheumatologist should capable performing”. Our goal was originally present and discuss 3-year experience regularly assessing rheumatology residents through ACR-approved EPAs. Experience report: In this case series, all first-year second-year assessed every May November (the...

10.1590/1981-5271v49.1-2024-0074.ing article EN cc-by Revista Brasileira de Educação Médica 2025-01-01

OBJETIVO: Elaborar recomendações para o tratamento da artrite reumatoide no Brasil. MÉTODO: Revisão literatura com seleção de artigos baseados em evidência e opinião especialistas Comissão Artrite Reumatoide Sociedade Brasileira Reumatologia. RESULTADOS E CONCLUSÕES: 1) A decisão terapêutica deve ser compartilhada paciente; 2) imediatamente após diagnóstico, uma droga modificadora do curso doença (DMCD) prescrita ajustado atingir remissão; 3) deverá conduzido por reumatologista; 4) inicial...

10.1590/s0482-50042012000200002 article PT cc-by-nc-nd Revista Brasileira de Reumatologia 2012-03-28

OBJETIVO: Elaborar recomendações para o manejo da artrite reumatoide (AR) no Brasil, com enfoque diagnóstico e na avaliação inicial doença. MÉTODO: Revisão literatura opinião de especialistas membros Comissão AR Sociedade Brasileira Reumatologia. RESULTADOS E CONCLUSÕES: Foram estabelecidas 10 recomendações: 1) O deve ser estabelecido considerando-se achados clínicos exames complementares; 2) Deve-se dedicar especial atenção ao diferencial dos casos artrite; 3) fator (FR) é um teste...

10.1590/s0482-50042011000300002 article PT cc-by-nc-nd Revista Brasileira de Reumatologia 2011-05-26

Rheumatoid arthritis (RA) is a well-documented independent risk factor for cardiovascular disease. Obesity may provide an additional link between inflammation and accelerated atherosclerosis in RA.To evaluate the association obesity disease parameters factors RA patients.Cross-sectional study of cohort patients from three Brazilian teaching hospitals. Information on demographics, clinical presence was collected. Blood pressure, weight, height waist circumference (WC) were measured during...

10.1186/s42358-019-0089-1 article EN cc-by Advances in Rheumatology 2019-10-16

Abstract We tested the possible association of 14‐bp polymorphism HLA‐G gene in course two inflammatory diseases, rheumatoid arthritis (RA) and juvenile idiopathic (JIA). Patients controls were genotyped for by polymerase chain reaction with specific primers exon 8 human leukocyte antigen (HLA)‐G amplified fragment was visualized a 6% polyacrylamide gel. A total 106 JIA patients, 265 RA 356 healthy adults 85 children polymorphism. Female patients presented higher frequency −14 bp allele when...

10.1111/j.1399-0039.2008.01019.x article EN Tissue Antigens 2008-03-10

A literature review of the scientific articles referenced in these guidelines was conducted with MEDLINE database. The evidence search based on real clinical scenarios, and following keywords (MeSH terms) were used: Arthritis, Rheumatoid, Therapy (early OR late later time factors delay), Prognosis, Remission, Steroids, Anti-Inflammatory Agents, Non-Steroidal, NSAIDs, Diclofenac, Ibuprofen, Indomethacin, Piroxicam, COX-2, Celecoxib, Etoricoxib, Disease-modifying antirheumatic drug DMARD,...

10.1016/s2255-5021(13)70020-8 article EN cc-by-nc-nd Revista Brasileira de Reumatologia (English Edition) 2013-03-01

The objective of this document is to provide a comprehensive update the recommendations Brazilian Society Rheumatology on drug treatment rheumatoid arthritis (RA), based systematic literature review and opinion panel rheumatologists. Four general principles eleven were approved. General principles: RA should (1) preferably consist multidisciplinary approach coordinated by rheumatologist, (2) include counseling lifestyle habits, strict control comorbidities, updates vaccination record, (3) be...

10.1186/s42358-018-0005-0 article EN cc-by Advances in Rheumatology 2018-05-23

A revisão bibliográfica de artigos científicos dessa diretriz foi realizada na base dados MEDLINE. busca evidência partiu cenários clínicos reais, e utilizou palavras-chaves (MeSH terms): Arthritis, Rheumatoid, Therapy (early OR late later time factors delay), Prognosis, Remission, Steroids, Anti-Inflammatory Agents, Non-Steroidal, NSAIDs, Diclofenac, Ibuprofen, Indomethacin, Piroxicam, COX-2, Celecoxib, Etoricoxib, Disease-modifying antirheumatic drug DMARD, Methotrexate, Gold sodium,...

10.1590/s0482-50042013000200004 article PT cc-by-nc-nd Revista Brasileira de Reumatologia 2013-03-01

Objectives Our goal is to study the correlations among gray-scale seven-joint ultrasound score (GS-US7), power Doppler (PD-US7), disease activity score-28 joints (DAS28), simplified index (SDAI) and clinical (CDAI) in patients with without fibromyalgia (FM). Methods A matched case-control included all consecutively seen Rheumatoid Arthritis (RA) Clinic. Participants were allocated into one of two groups: RA FM FM. Ultrasound (US) scoring blinded for presence Medians proportions compared by...

10.1371/journal.pone.0118620 article EN cc-by PLoS ONE 2015-03-04

Abstract Introduction Although Rheumatoid Arthritis (RA) extra-articular manifestations (ExtRA) occurrence has been decreasing over time, they are still a major mortality risk factor for patients. Objective To determine the prevalence of ExtRA in large cohort, and its association with demographic clinical variables. Method Cross-sectional observational study, based on multi-centric database from prospective which 11 public rheumatology centres enrolled RA patients (1987 ARA or 2010...

10.1186/s42358-023-00318-y article EN cc-by Advances in Rheumatology 2023-07-26

A review of the scientific literature was performed with Medline database. The search for evidence based on actual clinical scenarios and used following Medical Subject Headings (MeSH) terms: Arthritis, Rheumatoid, Diagnosis (Delayed OR Delay Early Rheumatoid Arthritis VERA), Prognosis, Criteria (American College Rheumatology/European League Against Rheumatism ACR/EULAR classification), Comparative Study, Smoking (OR tobacco use disorder), Factor, Anti-cyclic Citrullinated Peptide (or...

10.1016/s2255-5021(13)70019-1 article EN cc-by-nc-nd Revista Brasileira de Reumatologia (English Edition) 2013-03-01

To assess the incidence of tuberculosis and to screen for latent infection among Brazilians with rheumatoid arthritis using biologics in clinical practice. This cohort study used data from Brazilian Registry Biological Therapies Rheumatic Diseases (Registro Brasileiro de Monitoração Terapias Biológicas – BiobadaBrasil), 01/2009 05/2013, encompassing 1552 treatments, including 415 only synthetic disease-modifying anti-rheumatic drugs, 942 DMARDs combined anti-tumor necrosis factor...

10.1016/j.rbre.2017.05.005 article EN cc-by-nc-nd Revista Brasileira de Reumatologia (English Edition) 2017-01-01

There are few data on the epidemiology, clinical manifestations and management of RA in Brazil, even with recognition high direct, indirect societal costs this disease. Herein, we report formation REAL - Rheumatoid Arthritis Real Life, first nationally representative multicenter prospective observational study Brazil. The was designed to include a total 1300 evaluable patients from 13 tertiary care public health centers specialized 5 regions Each center expected enroll ~ 100 consecutively...

10.1186/s42358-018-0017-9 article EN cc-by Advances in Rheumatology 2018-06-28

Avaliar incidência de tuberculose e triagem para latente em brasileiros com artrite reumatoide uso agentes biológicos na prática clinica. Estudo coorte dados do Registro Brasileiro Monitoração Terapias Biológicas (BiobadaBrasil), 01/2009 a 05/2013, abrangeu 1.552 tratamentos, 415 somente drogas modificadoras curso da doença (MMCDs) sintéticas, 942 MMCDs sintéticas associação anti‐TNF (etanercepte, infliximabe, adalimumabe) 195 outros (abatacepte, rituximabe tocilizumabe). Avaliaram‐se...

10.1016/j.rbr.2017.05.003 article PT cc-by-nc-nd Revista Brasileira de Reumatologia 2017-01-01

Introduction Self-reported disability is potentially influenced by many factors in patients with rheumatoid arthritis (RA). In this sense, we evaluated the association between self-reported and (1) clinical features, (2) muscle strength (3) physical performance over time among RA from two distinct patient cohorts. Materials methods Two independent prospective cohorts were analyzed. The Health Assessment Questionnaire (HAQ), Disease Activity Score 28 Joints (DAS28), handgrip test, chair stand...

10.1371/journal.pone.0280846 article EN cc-by PLoS ONE 2023-01-23

Abstract Background Early rheumatoid arthritis (RA) offers an opportunity for better treatment outcomes. In real-life settings, grasping this might depend on access to specialized care. We evaluated the effects of early versus late assessment by rheumatologist diagnosis, initiation and long-term outcomes RA under conditions. Methods Adults meeting ACR/EULAR (2010) or ARA (1987) criteria were included. Structured interviews conducted. The was deemed “early” when first second physician...

10.1186/s42358-023-00301-7 article EN cc-by Advances in Rheumatology 2023-04-24

RESUMO Introdução: As 14 atividades profissionais confiabilizadoras (entrustable professional activities -EPA) aprovadas pelo American College of Rheumatology (ACR) foram desenvolvidas para serem “o conjunto abrangente de tarefas ou responsabilidades que qualquer reumatologista deve ser capaz executar”. Nosso objetivo foi apresentar e discutir a experiência três anos avaliação regular residentes reumatologia pelas EPA ACR. Relato experiência: Nessa série casos, todos os do primeiro segundo...

10.1590/1981-5271v49.1-2024-0074 article PT cc-by Revista Brasileira de Educação Médica 2025-01-01
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