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Percorrer por autor "Ribeiro, Catarina"

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  • Impact of Pancreatic Autoantibodies in Pancreas Graft Survival After Pancreas-Kidney Transplantation
    Publication . Pestana, Nicole; Malheiro, Jorge; Silva, Filipa; Silva, Andreia; Ribeiro, Catarina; Pedroso, Sofia; Almeida, Manuela; Dias, Leonídio; Henriques, António Castro; Martins, La Salete
    In simultaneous pancreas-kidney transplantation (SPKT), persistence or recurrence of pancreatic autoantibodies (PAs) has been associated with pancreas graft (PG) autoimmune-driven injury. Our aim was to analyze the impact of PAs on PG survival.Methods. Between January 1, 2000, and December 31, 2017, we studied 139 patients with post-SPKT antieglutamic acid decarboxylase (GAD) autoantibody. Alloimmune (ALI) events were defined as PG rejection and/or de novo donor-specific antibodies (DSA).Hence, 3 groups were defined: patients without ALI events or anti-GAD (n ¼ 42), those with ALI events (n ¼ 14), or those only with autoimmune events (positive for anti-GAD and no ALI events; n ¼ 83). Results. Male sex was predominant (n ¼ 72, 52%). Median age was 35 years (interquartile range: 31-39) and median follow-up was 6-7 years (interquartile range: 4.1-9.2). Regarding anti-GAD positivity post-SPKT (n ¼ 90, 65%), no differences were observed concerning age, sex, anti-HLA antibodies, HLA mismatch number and de novo DSA. ALI events were present in 10% (n ¼ 14). PG survival 15 years post-SPKT was better in patients without immune events (96%) followed by those with ALI (69%) and autoimmune events (63%) (P ¼ .025). Anti-GAD was associated to higher annualized mean Hb1AC (P ¼ .006) and lower mean C-peptide (P ¼ .013). According to pre- and post-SPKT anti-GAD status, conversion from negative to positive was associated to worse (63%) 10-year PG survival (P ¼ .044), compared to persistence of negative (100%) or positive anti-GAD (88%). Anti-islet cell and anti-insulin autoantibodies had no impact. Conclusion. Anti-GAD presence post-SPKT was associated to higher pâncreas disfunction and lower PG survival. De novo anti-GAD seems to offer a particular risk of PG failure.
    2020Artigo científico Acesso aberto Ver mais
  • 2017Documento de conferência Acesso aberto Ver mais
  • O Papel das Redes Sociais na Geração de Leads e Reconhecimento da Marca
    Publication . Ribeiro, Catarina ; Pedrosa, Raquel
    Este relatório de estágio explora o impacto das redes sociais na geração de leads e no aumento do reconhecimento da marca, sendo estas ferramentas indispensáveis para as marcas e empresas estabelecerem relações duradouras com os seus consumidores. Para tal, foi realizado um enquadramento científico que aborda temas como a importância do marketing digital nos dias de hoje, as redes sociais, o funil de vendas, o comportamento e a intenção de compra e o brand awareness. A metodologia quantitativa foi utilizada através da aplicação de um inquérito por questionário, com um total de 377 respostas, as quais foram analisadas com o auxílio do software SPSS. Os resultados sugerem que, apesar da importância das redes sociais na comunicação das marcas, a sua influência direta na decisão de compra é limitada. Outros fatores, como preço, qualidade e valor percebido, continuam a desempenhar um papel fundamental na escolha do consumidor. Assim, reforça-se a ideia de que as redes sociais, por si só, não bastam, mas devem ser integradas numa estratégia de marketing mais ampla, com foco na personalização e na experiência do consumidor. O estágio decorreu na empresa The Brand Coach, onde houve oportunidade de aprofundar conhecimentos em diversas áreas, nomeadamente gestão de redes sociais, copywriting, criação de newsletters, ativação da marca, gestão de website e elaboração de relatórios. Esta experiência permitiu o desenvolvimento de novas competências e uma compreensão mais real da dinâmica de um setor em constante evolução.
    2025-07-01Dissertação de mestrado Acesso aberto Ver mais
  • Parents’ and nurses’ perceptions of Nursing care in neonatology – an integrative review
    Publication . Ribeiro, Catarina; Moura, Cristina; Sequeira, Catarina; Barbieri-Figueiredo, MC; Erdmann, Alacoque
    Background: The admission of a Newborn (NB) to a Neonatal Intensive Care Unit (NICU) requires specialised skills from nurses in order to not only assess the NB’s biological features, but also focus care on the NB/parents binomial. Objectives: To analyse the scientific evidence on the Nursing care experienced at NICUs from the perspective of nurses and parents of NBs during their hospital stay at those units. Methodology: An integrative literature review was conducted. The following databases were searched in the EBSCOhost platform: CINAHL; MEDLINE and Cochrane. Scientific studies published in databases of reference from 2004 to 2013 were selected based on previously defined inclusion and exclusion criteria. Results: Nine studies which emphasised the diversity of perceptions of care were included. The analysis of these studies allowed organising the results into three themes: therapeutic relationship, humanisation of care and suffering. Conclusion: The evidence obtained in this study suggest that parents of NBs admitted to NICUs experience a great emotional overload and need to receive information and support from nurses.
    2015Artigo científico Acesso aberto Ver mais