科研之友
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摘要
background: myocardial revascularization using the great saphenous vein is still a very common surgical procedure. the edema that occurs in the operated leg causes much discomfort and requires further studies. objectives: to describe lower limb edema secondary to great saphenous vein harvesting using the bridge technique for use as venous graft in myocardial revascularization. methods: forty-four individuals previously submitted to great saphenous vein harvesting for myocardial revascularization more than 3 months before were randomly selected. patients with factors that might interfere with formation of lower limb edema were excluded. both operated and non-operated legs were evaluated by volumetry and perimetry of the malleolar region. differences greater than 50 ml or higher than 2 cm between the operated and the contralateral leg were considered as presence of significant edema. chi-square, fisher＊s, mcnemar＊s and student＊s t tests were used for statistical analysis. significance level was set at 5% (a = 0.05). results: statistically significant differences (p %26lt; 0.05) were found between operated and contralateral legs, with 56.8% of the individuals having a difference in volume greater than 50 ml and 31.9% having a difference in malleolar region perimeter greater than 2 cm. there was no association between presence of edema and sample characteristics, surgery, perioperative or late clinical complications. conclusions: patients submitted to resection of the great saphenous vein for coronary artery bypass grafting may evolve with edema of the operated leg.
