ABSTRACT
Introduction: the first COVID-19 case in Brazil was confirmed on February 26, 2020. As of March 17, 2023, the Ministry of Health reported 699,634 deaths from COVID-19, with a case fatality rate of 1.9%. The impact of the COVID-19 pandemic in Brazil extends to socioeconomic and healthcare systems, reflecting significant regional disparities. Objective: To analyze mortality, incidence, and case fatality rates for COVID-19 in the states of Paraná and Santa Catarina, in the southern region of Brazil. Methods: This is an ecological time-series study using official Brazilian secondary data for COVID-19 cases and deaths. Data were extracted from the dashboard of the State Health Department of Santa Catarina and Paraná. Temporal series were developed for trend analysis using the Prais-Winsten regression model. Statistical analyses were performed using STATA 14.0 software (College Station, TX, USA, 2013). Results: In the analysis of rates over the entire period, trends for mortality, case fatality, and incidence in the state of Santa Catarina are decreasing, decreasing, and stationary, respectively. In Paraná, rates over the entire period showed a stationary trend for mortality, decreasing for case fatality, and increasing for incidence. Conclusion: COVID-19 had a devastating effect on the states of Santa Catarina and Paraná. Both states experienced the progression of the COVID-19 pandemic, with higher case fatality and mortality rates observed in Paraná, while Santa Catarina had a higher incidence rate over the three years of the COVID-19 pandemic.
ABSTRACT
CONTEXT AND OBJECTIVE: Chordoma is a rare tumor with a high risk of locoregional recurrences. The aim of this study was analyze the long-term results from treating this pathological condition. DESIGN AND SETTING: Cohort study in a single hospital in São Paulo, Brazil. METHODS: This was a retrospective cohort study on 42 patients with chordoma who were treated at Hospital A. C. Camargo between 1980 and 2006. The hospital records were reviewed and a descriptive analysis was performed on the clinical-pathological variables. Survival curves were estimated using the Kaplan-Meier method and these were compared using the log-rank test. RESULTS: Nineteen patients were men and 23 were women. Twenty-five tumors (59.5%) were located in the sacrum, eleven (26.2%) in the skull base and six (14.3%) in the mobile spine. Surgery was performed on 28 patients (66.7%). The resection was considered to have negative margins in 14 cases and positive margins in 14 cases. The five-year overall survival (OS) was 45.4%. For surgical patients, the five-year OS was 64.3% (82.2% for negative margins and 51.9% for positive margins). In the inoperable group, OS was 37.7% at 24 months and 0% at five years. CONCLUSION: Complete resection is related to local control and definitively has a positive impact on long-term survival. .
CONTEXTO E OBJETIVO: Cordoma é um tumor raro e com alto risco de recidiva locorregional. O objetivo deste estudo foi analisar os resultados a longo prazo do tratamento dessa doença. TIPO DE ESTUDO E LOCAL: Estudo de coorte realizado em um único hospital em São Paulo, Brasil. MÉTODOS: Estudo de coorte retrospectivo com 42 pacientes com cordoma tratados de 1980 e 2006 no Hospital A. C. Camargo. Os prontuários foram revistos e foi realizada a análise descritiva das variáveis clínicas e patológicas. As curvas de sobrevida foram estimadas pelo método de Kaplan-Meier e a comparação entre elas, pelo teste de log-rank. RESULTADOS: Dezenove pacientes eram homens e 23, mulheres. Vinte e cinco tumores (59,5%) estavam localizados no sacro, 11 (26,2%) na base do crânio e 6 (14,3%), na coluna móvel. A cirurgia foi realizada em 28 pacientes (66,7%). A ressecção foi considerada como tendo margens negativas em 14 casos e margens comprometidas em 14 pacientes. A sobrevida global (SG) em 5 anos foi de 45,4%. Para os pacientes cirúrgicos, a SG em 5 anos foi de 64,3% (82,2% para as margens negativas e 51,9% de margens positivas). No grupo inoperável, a SG em 24 meses foi de 37,7% e 0% em 5 anos. CONCLUSÃO: A ressecção completa está relacionada com o controle local e, definitivamente, tem impacto positivo na sobrevida a longo prazo. .