Abstract
CONTEXTO: Como a úlcera é uma grave complicação da insuficiência venosa crônica, é necessário o conhecimento amplo de sua fisiopatologia. A ultrassonografia Doppler venosa é o exame complementar mais adequado, que possibilita o estudo do sistema venoso superficial e profundo, sua anatomia e fisiologia. Trabalhos recentes valorizam o refluxo em Veia Poplítea como importante fator para o desenvolvimento deste quadro clínico. OBJETIVOS: Avaliar o refluxo em segmento venoso femoropoplíteo em pacientes com úlcera varicosa. TIPO DE ESTUDO: Estudo de prevalência. MÉTODOS: Cento e quatro pacientes apresentando 118 membros inferiores com úlcera varicosa. Procedimentos: exame de ultrassonografia Doppler venosa do membro acometido, observado o refluxo no segmento venoso femoropoplíteo e diâmetro da Veia Poplítea. Variáveis: Primária: refluxo no segmento venoso femoropoplíteo. Secundária: diâmetro da Veia Poplítea. RESULTADOS: A presença de refluxo no segmento venoso femoropoplíteo foi observada em 56 (47,45%) dos 118 membros com úlcera varicosa, examinados em 104 pacientes. O diâmetro médio da Veia Poplítea foi de 1,14 cm, sendo o diâmetro médio normal da população 0,6 cm. CONCLUSÃO: O refluxo venoso no segmento venoso femoropoplíteo é um importante fator na avaliação do prognóstico destes pacientes, o aumento de diâmetro da Veia Poplítea reflete a magnitude da insuficiência venosa.
Highlights
This study evaluated the prevalence of reflux in a femoropopliteal venous segment and the diameter of theThe venous system of lower limbs has a deep and popliteal vein (PV) in patients with venous ulcers.a superficial system, and the two are connected by the perforating veins, which direct the flow from the superficial Methods to the deep veins towards the heart
In the item about heredity, patients were asked whether their first degree relatives had varicose veins corresponding to CEAP clinical class 2 (C2) to 6 (C6), and 80 (76.92%) of the patients answered affirmatively
This study demonstrated the association between venous reflux and venous distension, as shown in Table 1, as the increase in PV diameter was followed by a greater reflux proportion, both in superficial and deep veins
Summary
This study evaluated the prevalence of reflux in a femoropopliteal venous segment and the diameter of theThe venous system of lower limbs has a deep and PV in patients with venous ulcers.a superficial system, and the two are connected by the perforating veins, which direct the flow from the superficial Methods to the deep veins towards the heart. This study evaluated the prevalence of reflux in a femoropopliteal venous segment and the diameter of the. Of valves that block reflux, about 15% of the flow in the The study included 104 patients and 118 limbs with venous ascending direction when in a standing position[1]. There ulcers, distributed as follows: 14 patients had ulcers in both are 90 and 200 valves in the venous system of each lower legs; all ulcers were classified as CEAP C6 Patients were both limb; they are usually bicuspids and direct the flow to the men and women with no occlusions in the femoropopliteal heart[2]. Patients underwent Doppler ultrasonography of the affected limb showing the venous reflux of the femoropopliteal segment and popliteal vein diameter. Increased diameter of the popliteal vein reflects the magnitude of venous insufficiency
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