Jornal Vascular Brasileiro
https://jvascbras.org/article/doi/10.1590/S1677-54492008000400006
Jornal Vascular Brasileiro
Original Article

Eficácia da compressão pneumática intermitente (CPI) nos membros inferiores sobre o fluxo sanguíneo das veias femorais comuns

Efficacy of intermittent pneumatic compression (IPC) in lower limbs on the blood flow of common femoral veins

Marcondes Figueiredo; Patrícia Polizel Simão; Beethoven Marques Alves Pereira; Nilson Penha-Silva

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Resumo

CONTEXTO: A profilaxia do tromboembolismo venoso pode ser feita por métodos farmacológicos ou de forma mecânica, com o uso de meias antitrombo e compressão pneumática (CPI). A CPI é um método mecânico de profilaxia que merece melhor atenção da comunidade médica. OBJETIVO: Avaliar o efeito do uso de compressão pneumática intermitente (CPI) nos pés, pernas e coxas de adultos saudáveis sobre o fluxo sanguíneo nas veias femorais comuns. MÉTODOS: A amostra foi constituída de 10 voluntários (sete mulheres e três homens) adultos (20-40 anos), sem antecedente de tromboembolismo venoso. Após repouso (10 min) em decúbito dorsal, o fluxo sanguíneo era medido (três vezes) por ultra-sonografia vascular na veia femoral, a 1 cm acima da junção safeno-femoral, em ambos os membros, sem controle e com CPI no pé, perna e na coxa. A compressão (130 mmHg no pé e 45 mmHg na perna e na coxa) foi aplicada em ciclos de 11 segundos de compressão e 20-60 segundos de esvaziamento. As aferições de fluxo foram realizadas no pico de fluxo do ciclo de compressão. Os valores foram comparados por análise de variância (teste de Tukey), com p < 0,05 indicando diferença estatisticamente significante. RESULTADO: A utilização de CPI nos membros inferiores, esquerdo e direito, promoveu elevações percentuais relativas no fluxo venoso femoral de 37,6 e 70,8% (pés), 143,9 e 164,7% (pernas) e 132,6 e 128,9% (coxas), respectivamente. As variações foram estatisticamente significantes para as aplicações nas pernas e coxas. CONCLUSÃO: A CPI melhora o fluxo sanguíneo quando aplicada na perna ou na coxa.

Palavras-chave

Dispositivo de compressão pneumática intermitente, trombose venosa, ultra-sonografia, veia femoral

Abstract

BACKGROUND: Prophylaxis of venous thromboembolism, a very common post-surgical complication, can be made pharmacologically or via mechanical methods, such as the use of anti-thrombosis socks and intermittent pneumatic compression (IPC). IPC is a mechanical method of prophylaxis that deserves the attention of the medical community. OBJECTIVE: To evaluate the effect of IPC on the blood flow of common femoral veins in feet, legs and thighs of healthy adults. METHODS: The sample was comprised of 10 volunteers (seven females and three males), adults (20-40 years), without history of venous thromboembolism. After a rest period (10 min), with the patient in the supine position, blood flow was measured (three times) via vascular ultrasonography at the femoral vein, 1 cm above of the saphenofemoral junction, in both limbs, without (control) and with IPC in the patient"s foot, leg and thigh. Compression (130 mmHg on foot and 45 mmHg on leg and thigh) was applied at compression cycles of 11 seconds and emptying cycles of 20-60 seconds. Blood flow evaluations were performed at compression cycle peaks. Values were compared by analysis of variance (Tukey test), p < 0.05 indicating statistically significant difference. RESULTS: Use of IPC on the left and right lower limbs caused a percentage increase in the femoral blood flow of 37.6 and 70.8% (feet), 143.9 and 164.7% (legs), and 132.6 and 128.9% (thighs), respectively. Variations were statistically significant for application in legs and thighs. CONCLUSION: Use of IPC improves blood flow when applied in legs or thighs.

Keywords

Intermittent pneumatic compression, venous thrombosis, ultrasonography, femoral vein

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