Evaluation of the six-minute walk test in patients with chronic heart failure associated with Chagas' disease and systemic arterial hypertension Avaliação do teste de caminhada de seis minutos em pacientes com insuficiência cardíaca crônica associada à doença de Chagas e hipertensão arterial sistêmica

• Published in: Revista da Sociedade Brasileira de Medicina Tropical
• Main Authors: Kelly Cristina Colaço Dourado, Reinaldo Bulgarelli Bestetti, Augusto Cardinalli-Neto, José Antônio Cordeiro
• Format: Article in Journal/Newspaper
• Language: English
• Published: Sociedade Brasileira de Medicina Tropical (SBMT) 2010
• Subjects: Insuficiência cardíaca; Doença de Chagas; Trypanossomíase Americana; Teste de caminhada de seis minutos; Capacidade física; Capacidade funcional; Heart failure; Chagas disease; American Trypanosomiasis; Six-minute walk test; Physical capacity; Functional capacity; Arctic medicine. Tropical medicine; RC955-962; Arctic
• Online Access: https://doi.org/10.1590/S0037-86822010000400014; https://doaj.org/article/17b5a19b7dae421688f9e09177c2fd5a

INTRODUCTION: To evaluate physical capacity as determined by the six-minute walk test (6MWT) in patients with chronic heart failure due to Chagas' disease associated with systemic arterial hypertension (Chagas-SAH). METHODS: A total of 98 patients routinely followed at the Cardiomyopathy Outpatient Service were recruited. Of these, 60 (61%) were diagnosed with Chagas disease and 38 (39%) with Chagas-SAH. RESULTS: The distance walked during 6 min was 357.9 ±98 m for Chagas-SAH patients and 395.8 ± 121m for Chagas cardiomyopathy patients (p >0.05). In patients with Chagas-SAH, a negative correlation occurred between the 6MWT and the total score of the Minnesota Living with Heart Failure Questionnaire (r= -0.51; p=0.001). No other correlations were determined between 6MWT values and continuous variables in patients with Chagas-SAH. CONCLUSIONS: The results of the 6MWT in Chagas-SAH patients are similar to those verified in Chagas cardiomyopathy patients with chronic heart failure. Coexistence of SAH does not seem to affect the functional capacity of Chagas cardiomyopathy patients with chronic heart failure. INTRODUÇÃO: Avaliar a capacidade física medida pelo teste de caminhada de seis minutos em pacientes com insuficiência cardíaca crônica secundária à associação de cardiomiopatia chagásica com hipertensão arterial sistêmica (Chagas-HAS). MÉTODOS: Noventa e oito pacientes rotineiramente tratados no Ambulatório de Cardiomiopatia do Hospital de Base foram utilizados no estudo. Deles, 60 (61%) eram portadores de cardiomiopatia chagásica (ChCM), enquanto 38 (39%) apresentavam a associação Chagas-HAS. RESULTADOS: A distância média caminhada foi de 357,9 ± 98m no grupo Chagas-SAH e 395,8 ± 121m no grupo ChCM (p >0,05). Nos pacientes com Chagas-SAH, houve correlação negativa entre o Teste de Caminhada de 6 Minutos e a somatória de pontos obtida no Questionário Vivendo com a Insuficiência Cardíaca. (r=-0,51; p=0,001). Nenhuma outra correlação foi observada entre o teste de caminhada de seis minutos e as variáveis ...