RESUMO
OBJECTIVE: This study aims to describe the correlation between age and occurrence of atrial fibrillation after aortic stenosis surgery in the elderly as well as evaluate the influence of atrial fibrillation on the incidence of strokes, hospital length of stay, and hospital mortality. METHODS: Cross-sectional retrospective study of > 70 year-old patients who underwent isolated aortic valve replacement. RESULTS: 348 patients were included in the study (mean age 76.8±4.6 years). Overall, post-operative atrial fibrillation was 32.8% (n=114), but it was higher in patients aged 80 years and older (42.9% versus 28.8% in patients aged 70-79 years, P=0.017). There was borderline significance for linear correlation between age and atrial fibrillation (P=0.055). Intensive Care Unit and hospital lengths of stay were significantly increased in atrial fibrillation (P<0.001), but there was no increase in mortality or stroke associated with atrial fibrillation. CONCLUSION: Post-operative atrial fibrillation incidence in aortic valve replacement is high and correlates with age in patients aged 70 years and older and significantly more pronounced in patients aged 80 years. There was increased length of stay at Intensive Care Unit and hospital, but there was no increase in mortality or stroke. These data are important for planning prophylaxis and early treatment for this subgroup.
Assuntos
Estenose da Valva Aórtica/cirurgia , Fibrilação Atrial/etiologia , Implante de Prótese de Valva Cardíaca/efeitos adversos , Complicações Pós-Operatórias/etiologia , Doença Aguda , Distribuição por Idade , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estenose da Valva Aórtica/mortalidade , Fibrilação Atrial/mortalidade , Estudos Transversais , Feminino , Implante de Prótese de Valva Cardíaca/mortalidade , Mortalidade Hospitalar , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Complicações Pós-Operatórias/mortalidade , Estudos Retrospectivos , Fatores de Risco , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/mortalidade , Fatores de TempoRESUMO
Objetivo: Descrever, em idosos, a correlação entre faixa etária e ocorrência de fibrilação atrial após cirurgia por estenose aórtica, além de avaliar a influência da ocorrência de fibrilação atrial na incidência de acidente vascular cerebral, tempo de internação e mortalidade hospitalar. Métodos: Estudo transversal retrospectivo incluindo pacientes com idade > 70 anos submetidos à cirurgia de troca valvar aórtica isolada. Resultados: Foram estudados 348 pacientes com idade média de 76,8±4,6 anos. A incidência de fibrilação atrial no pós-operatório foi 32,8% (n=114), sendo superior nos pacientes > 80 anos (42,9 vs. 28,8% 70-79 anos, P=0,017) e havendo significância estatística limítrofe (P=0,055) para tendência linear na correlação idade e incidência de fibrilação atrial. Verificou-se significativo maior tempo de internação na Unidade de Terapia Intensiva e hospitalar total, porém, não se observou maior taxa de acidente vascular cerebral ou de mortalidade hospitalar decorrente da fibrilação atrial. Conclusão: A incidência de fibrilação atrial no pós-operatório de cirurgia para estenose valvar aórtica em pacientes idosos com > 70 anos foi elevada e linearmente correlacionada ao avanço da idade, especialmente após 80 anos, causando aumento dos tempos de internação total e em Unidade de Terapia Intensiva, sem aumento significativo da morbimortalidade. O conhecimento desses dados é importante para evidenciar a necessidade de medidas profiláticas e de tratamento precoce dessa arritmia nesse subgrupo. .
Objective: This study aims to describe the correlation between age and occurrence of atrial fibrillation after aortic stenosis surgery in the elderly as well as evaluate the influence of atrial fibrillation on the incidence of strokes, hospital length of stay, and hospital mortality. Methods: Cross-sectional retrospective study of > 70 year-old patients who underwent isolated aortic valve replacement. Results: 348 patients were included in the study (mean age 76.8±4.6 years). Overall, post-operative atrial fibrillation was 32.8% (n=114), but it was higher in patients aged 80 years and older (42.9% versus 28.8% in patients aged 70-79 years, P=0.017). There was borderline significance for linear correlation between age and atrial fibrillation (P=0.055). Intensive Care Unit and hospital lengths of stay were significantly increased in atrial fibrillation (P<0.001), but there was no increase in mortality or stroke associated with atrial fibrillation. Conclusion: Post-operative atrial fibrillation incidence in aortic valve replacement is high and correlates with age in patients aged 70 years and older and significantly more pronounced in patients aged 80 years. There was increased length of stay at Intensive Care Unit and hospital, but there was no increase in mortality or stroke. These data are important for planning prophylaxis and early treatment for this subgroup. .
