Navegando por Palavras-chave "duplex scan"

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    Avaliação da bomba muscular da panturrilha em pacientes portadores de varizes primárias dos membros inferiores através da pletismografia a ar
    (Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV), 2007-03-01) Sacchi, André de Araújo; Castro, Aldemar Araujo [UNIFESP]; Pitta, Guilherme Benjamin Brandão; Miranda Junior, Fausto [UNIFESP]; Universidade Federal de Campina Grande Universidade Federal de Campina Grande; Universidade Estadual de Ciências da Saúde de Alagoas Escola de Ciências Médicas de Alagoas Departamento de Medicina Social; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: This article aims at assessing the influence of calf muscle vein reflux (suraland genicular veins) on calf muscle pump function in patients with primary varicose veins of the lower limbs. METHODS: Cross-sectional and prospective study assessing 120 patients divided into two groups (60 subjects each) by physical examination, duplex scan and air plethysmography. The first group showed calf muscle venous reflux, whereas the second group presented absence of reflux. Both groups were examined by air plethysmography to verify calf pump function through measurement of ejection fraction, residual volume fraction, ejected volume and venous filling index in both limbs. RESULTS: In the group of patients with reflux, ejection fraction indexes lower than 60% (p < 0.001) were found in 82.3% (left leg) and 74.6% (right leg) of cases. Levels of residual volume fraction greater than 60% were identified in 62.5% (left leg, p= 0.015) and in 86.7% (right leg, p = 0.014) of assessed cases. There was no statistically significant variation concerning the venous filling index between groups with or without reflux, with p= 0.140 in both legs. Of all patients, 63.6% had calf vein reflux (left leg) and 61.8% (right leg) had ejection volume greater than 150 mL (p = 0.001). CONCLUSIONS: The calf pump function decreased in both lower limbs, due to presence of calf muscle vein reflux (genicular and sural veins).
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    Avaliação do refluxo venoso superficial ao mapeamento dúplex em portadores de varizes primárias de membros inferiores: correlação com a gravidade clínica da classificação CEAP
    (Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV), 2009-03-01) Andrade, Áurea Regina Teixeira de; Pitta, Guilherme Benjamin Brandão [UNIFESP]; Castro, Aldemar Araujo [UNIFESP]; Miranda Junior, Fausto; Hospital das Clínicas Dr. José Augusto Leite , SBACV e Associação Médica Brasileira; Universidade Federal de São Paulo (UNIFESP); Universidade Estadual de Ciências da Saúde de Alagoas Governador Lamenha Filho Escola de Ciências Médicas de Alagoas Departamento de Cirurgia; UNCISAL Departamento de Medicina Socia
    Background: Skin changes observed in chronic venous insufficiency have venous reflux as the most common etiology. Some authors have reported that reflux in the superficial venous system accounts for 40-60% of leg ulcers in patients with primary varicose veins. Objective: To evaluate the correlation between superficial venous reflux and clinical status (CEAP classification - clinical, etiology, anatomy and pathophysiology) in patients with primary varicose veins of the lower limbs using duplex scanning. Method: A cross-sectional and descriptive study was performed in patients with primary varicose veins. Primary variables were venous reflux and clinical status. Clinical status was characterized by groups A, B, and C, represented by CEAP clinical categories. Types of venous reflux in the great and small saphenous veins were used as complementary data, according to Engelhorn’s classification (2004). Hypotheses of interrelationship between incidence and types of reflux were statistically analyzed using Fisher’s exact and chi-square tests. Significance was set at 0.05%. Results: Of 242 lower limbs, 15 were excluded, so that the final sample was comprised of 227 lower limbs. Ninety-nine (83.9%) patients were female. Mean age was 50 years and median was 49 years. Reflux was absent in 93 limbs (41%), and 134 (59%) showed isolated and/or associated reflux. Isolated reflux in perforating veins (p = 0.0008) or in association with great saphenous vein reflux (p < 0.0001) was significantly related to clinical status severity. Conclusion: Duplex scan showed correlation between presence of superficial venous reflux and clinical status severity in patients with primary varicose veins of the lower limbs.