Correlação entre o índice tornozelo-braço antes e após teste de deslocamento bidirecional progressivo

Inácio Teixeira da Cunha-Filho; Danielle Aparecida Gomes Pereira; André Maurício Borges de Carvalho; Júlia Polcaro Garcia; Luciana Morais Mortimer; Inalda Cunha Burni

doi:10.1590/S1677-54492007000400006

Original Article

Correlação entre o índice tornozelo-braço antes e após teste de deslocamento bidirecional progressivo

Correlation between ankle-brachial index before and after shuttle walk test

Inácio Teixeira da Cunha-Filho; Danielle Aparecida Gomes Pereira; André Maurício Borges de Carvalho; Júlia Polcaro Garcia; Luciana Morais Mortimer; Inalda Cunha Burni

http://dx.doi.org/10.1590/S1677-54492007000400006 J Vasc Bras, vol.6, n4, p.332-338, 2007

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Resumo

CONTEXTO: A alteração de fluxo sangüíneo observada nos pacientes com doença arterial obstrutiva periférica (DAOP) contribui para a redução da capacidade deambulatórida. Entretanto, ainda existe uma grande variabilidade nas correlações entre medidas inferenciais de comprometimento de fluxo e testes de deslocamento. OBJETIVO: Estabelecer o nível de correlação entre as medidas do índice tornozelo-braço (ITB), pré e pós-esforço, com um novo teste de deambulação chamado teste de deslocamento bidirecional progressivo (TDBP). MÉTODOS: Vinte e um pacientes claudicantes, com diagnóstico de DAOP, tiveram registrados o ITB antes e após a realização de um teste de caminhada no solo, com controle externo e progressivo de velocidade (TDBP). RESULTADOS: Foram registrados a distância (261,07±160,63 metros), o tempo (292,30±122,61 segundos) e a velocidade (1,23±0,34 m/s) obtidos no início do surgimento de sintoma claudicante, bem como durante o surgimento de sintoma limitante (369,52±157,97 metros, 377,71±104,60 segundos, 1,46±0,29 m/s, respectivamente). A média do ITB de repouso foi de 0,66±0,14, e de pós-esforço foi de 0,42±0,19. Não se observou nenhuma correlação importante entre as variáveis do teste (distância, tempo e velocidade) com o ITB de repouso e nem após esforço. CONCLUSÃO: O tempo, velocidade e distância de surgimento de sintoma claudicante e de sintoma claudicante limitante durante o teste de caminhada progressiva são independentes da medida inferencial de fluxo sangüíneo através do ITB de repouso e pós-exercício.

Palavras-chave

Claudicação, caminhada, fluxo

Abstract

BACKGROUND: Patients with peripheral occlusive artery disease (POAD) show changes in blood flow that may impair their walking ability. However, variability between inferential measurements of blood flow and walking performance is still high. OBJECTIVE: To correlate the ankle-brachial index (ABI) before and after performing the shuttle walk test (SWT). METHODS: Twenty-one patients with claudication due to POAD had their ABI values registered before and after walking based on a progressive external controlled speed walking protocol. RESULTS: Distance (261.07±160.63 m), time (292.30±122.61 seconds) and speed (1.23±0.34 m/s) obtained at claudication onset and when the limiting walking symptom started (369.52±157.97 m, 377.71±104.60 seconds, 1.46±0.29 m/s, respectively) were registered. Mean ABI before and after the SWT was 0.66±0.14 and 0.42±0.19, respectively. There was no substantial correlation between ABI pre- and post-walking and the variables obtained with the SWT (distance, time and speed). CONCLUSION: Time, speed and distance for claudication onset and walking limiting symptom during a progressive speed walking protocol are independent of inferential blood flow measurements obtained by ABI before and after exercise.

Keywords

Claudication, walking test, flow

References

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Correlação entre o índice tornozelo-braço antes e após teste de deslocamento bidirecional progressivo

Correlation between ankle-brachial index before and after shuttle walk test

Inácio Teixeira da Cunha-Filho; Danielle Aparecida Gomes Pereira; André Maurício Borges de Carvalho; Júlia Polcaro Garcia; Luciana Morais Mortimer; Inalda Cunha Burni

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