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Casos de gripe aumentam entre idosos e elevam risco de complicações respiratórias 2n3272 Folha MS
Ir para o conteúdo
Com a aproximação do inverno , o Brasil já observa um crescimento preocupante nos casos de doenças respiratórias entre a população mais velha. Segundo dados recentes da Fundação Oswaldo Cruz (Fiocruz) , a influenza A se tornou a principal causa de mortes por Síndrome Respiratória Aguda Grave (SRAG) em idosos , ultraando os registros de óbitos por covid-19 .
Os vírus Sincicial Respiratório (VSR) e Influenza , considerados altamente contagiosos , são particularmente perigosos para pessoas com mais de 60 anos , especialmente aquelas que convivem com doenças crônicas .
Número de hospitalizações e impacto na saúde
Até o início de maio , o país contabilizou 24.571 internações por SRAG , sendo 50% atribuídas ao VSR nas últimas quatro semanas. Além disso, 11% dos óbitos registrados foram consequência direta desse agente infeccioso, conforme o Boletim Epidemiológico InfoGripe .
O presidente da Sociedade Brasileira de Infectologia (SBI), Alberto Chebabo , explica por que os idosos apresentam maior vulnerabilidade diante dessas infecções:
“Com o avanço da idade, o sistema imunológico se torna menos eficaz no combate a infecções. Essa diminuição da capacidade de defesa faz com que os idosos sejam mais suscetíveis a quadros graves de doenças respiratórias, como as causadas pelo Vírus Sincicial Respiratório, que, tradicionalmente, afeta mais bebês e crianças”.
Comorbidades elevam o risco de complicações
Grande parte dos idosos convive com doenças crônicas , como cardiopatias, diabetes, insuficiência renal, asma e Doença Pulmonar Obstrutiva Crônica (DPOC) . Essas condições preexistentes aumentam significativamente o risco de descompensações cardíacas e hospitalizações prolongadas , caso sejam infectados por vírus respiratórios .
“Os sintomas do VSR em idosos, muitas vezes confundidos com um resfriado comum, podem evoluir rapidamente para quadros graves, e, em situações extremas, podem levar à morte”, alerta Chebabo.
Um estudo conduzido pela Fiocruz revela que a taxa de letalidade do VSR entre idosos no Brasil atingiu 26% entre 2013 e 2023 , número 20 vezes maior do que o registrado em crianças. Além disso, indivíduos com insuficiência cardíaca têm 33 vezes mais chances de serem hospitalizados devido à infecção viral.
Mesmo após a alta hospitalar , muitos idosos relatam perda de autonomia em tarefas cotidianas, evidenciando os efeitos duradouros dessas infecções sobre a qualidade de vida .
Vacinação e medidas preventivas
Para reduzir os impactos das infecções respiratórias durante o período mais frio , a vacinação continua sendo um dos recursos mais eficazes para proteger a população idosa.
“Além da imunização, medidas preventivas que já aprendemos durante a pandemia são fundamentais: lavar as mãos frequentemente, usar máscara caso apresente sintomas gripais, manter os ambientes arejados, evitar aglomerações e o contato com pessoas doentes”, reforça Chebabo.
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