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Doctoral Thesis
DOI
https://doi.org/10.11606/T.5.2023.tde-27022024-124053
Document
Author
Full name
Gabriela Araujo Munhoz
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2023
Supervisor
Committee
Borba Neto, Eduardo Ferreira (President)
Andrade, Danieli Castro Oliveira de
Reis Neto, Edgard Torres dos
Signorelli, Flávio Victor
Title in Portuguese
Avaliação de envolvimento de novos órgãos e acúmulo de dano em coorte de pacientes recém diagnosticados com lúpus eritematoso sistêmico com e sem nefrite
Keywords in Portuguese
Avaliação de dano
Diagnóstico precoce
Imunossupressão
Lúpus eritematoso sistêmico
Nefrite
Surgimento de sintomas
Abstract in Portuguese
Introdução: O acometimento renal se manifesta geralmente no início do lúpus eritematoso sistêmico (LES) e sua incidência diminui significativamente após os primeiros 5 anos do diagnóstico. Há poucos dados sobre a associação específica do envolvimento renal no início da doença ao acúmulo de novos domínios. Objetivo: Avaliar o impacto, a curto prazo, do envolvimento de novos órgãos, índice de dano e o tratamento empregado em uma coorte retrospectiva de pacientes recém diagnosticados com LES, com e sem nefrite, segundo critérios da Liga Europeia Contra o Reumatismo (EULAR) / Colégio Americano de Reumatologia (ACR) de 2019. Métodos: 133 pacientes com LES, foram divididos de acordo com a presença (RENAL-lúpus) ou ausência de envolvimento renal (NÃORENAL-lúpus), no momento do diagnóstico. Foi avaliada, ao longo de 3 anos, a pontuação dos domínios EULAR/ACR de 2019 e do Índice de Dano Colaborativo Internacional do Lúpus Sistêmico/ACR (SDI). Resultados: RENAL-lúpus (n = 49 [36,8%]) e NÃORENAL-lúpus (n = 84 [63,2%]) foram semelhantes em relação à idade (p = 0,704), sexo feminino (p = 0,313) e raça negra (p = 0,506). RENAL-lúpus apresentava, no início do estudo, maior pontuação total do EULAR/ACR de 2019 (30 [12-42] vs. 22 [10-36], p <0,001) e maior frequência de pacientes em uso de glicocorticoide (p <0,001), micofenolato de mofetila (p = 0,007) e ciclofosfamida (p = 0,001). Observou-se, no fim do estudo, uma estabilidade na pontuação dos domínios para o grupo RENAL-lúpus (30 [12-42] vs. 30 [12-42], p = 0,125), ao passo que o NÃORENAL-lúpus sofreu um aumento significativo (22 [10-36] vs. 23 [10-40], p <0,001) em comparação ao início do seguimento. O grupo RENAL-lúpus obteve menor frequência de novos domínios (3/49 [6,1%] vs. 37/84 [44,0%], p <0,0001). Dos 34 pacientes do NÃORENAL-lúpus que pontuaram novos domínios, 15 (44,1%) evoluíram com novo envolvimento renal. Houve um aumento comparável na frequência de pacientes de ambos os grupos que evoluíram com dano (SDI 1) no final do estudo (23/49 [46,9%] vs. 34/89 [40,54%], p = 0,585), com uma mediana similar de SDI (1 [0-4] vs. 0 [0-2], p = 0,132). Conclusões: Embora inicialmente o grupo NÃORENAL-lúpus apresentasse um padrão de doença menos agressivo, se faz obrigatória a vigilância no seguimento e a pronta tomada de decisões afim de se conter o acúmulo de novos domínios. O dano precoce, presente em ambos os grupos, traz o alerta para a necessidade da instalação mais antecipada de novas terapias de forma individualizada, independentemente de haver ou não acometimento renal
Title in English
Evaluation of new organ involvement and cumulative damage in a cohort of newly diagnosed systemic lupus erythematosus patients with and without nephritis
Keywords in English
Damage assessment
Early disease
Immunosuppression
Lupus erythematosus systemic
Nephritis
Symptom flare up.
Abstract in English
Introduction: Renal involvement is usually manifested at the beginning of systemic lupus erythematosus (SLE) and its incidence decreases significantly after the first 5 years of diagnosis. There are few data on the specific association of renal involvement at the onset of the disease with the accumulation of new domains. Objective: To assess the short term impact of new organ involvement, damage and treatment in a retrospective cohort of newly diagnosed SLE patients with and without nephritis, according to 2019 European League Against Rheumatism (EULAR) / American College of Rheumatology (ACR) criteria. Methods: 133 patients with SLE were divided according to the presence (RENAL lupus) or absence of renal involvement (NORENAL lupus) at diagnosis. The 2019 EULAR/ACR domain score and the Systemic Lupus International Collaborative Damage Index/ACR (SDI) score were e valuated over 3 years. Results: RENAL lupus (n = 49 [36.8%]) and NON RENAL lupus (n = 84 [63.2%]) were similar in relation to age (p = 0.704), female gender (p = 0.313) and black race (p = 0.506). RENAL lupus had, at baseline, a higher 2019 EULAR/ACR total score (30 [12 42] vs. 22 [10 36], p <0.001) and a higher frequency of patients using glucocorticoids (p <0.001), mycophenolate mofetil (p = 0.007) and cyclophosp hamide (p = 0.001). At the end of the study, stability was observed in domain scores for the RENAL lupus group (30 [12 42] vs. 30 [12 42], p = 0.125), whereas the NONRENAL lupus group evolved with a significant increase (22 [10 36] vs. 23 [10 40], p < 0.00 1) compared to baseline follow up. The RENAL lupus group had a lower frequency of new domains (3/49 [6.1%] vs. 37/84 [44.0%], p <0.0001). Of the 34 NORENAL lupus patients who scored new domains, 15 (44.1%) evolved with new renal involvement. There was a co mparable increase in the frequency of patients in both groups who developed damage (SDI 1) at the end of the study (23/49 [46.9%] vs. 34/89 [40.54%], p = 0.585), with a similar median SDI (1 [0 4] vs. 0 [0 2], p = 0.132). Conclusions: Although the NONRENA L lupus group initially presented a less aggressive disease pattern, follow up vigilance and prompt decision making are mandatory in order to contain the accumulation of new domains. The early damage, present in both groups, brings the alert to the need fo r the earlier installation of new therapies in an individualized way, regardless of whether or not there is renal involvement
 
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Publishing Date
2024-03-01
 
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