Common femoral vein dimensions and hemodynamics including Valsalva response as a function of sex, age, and ethnicity in a population study

Journal of Vascular Surgery
A FronekR D Langer

Abstract

In this study we assessed the normal common femoral vein (CFV) dimensions and related hemodynamics in a cohort assembled to permit contrasts by means of sex, age, and ethnicity. The CFV diameter and the flow velocity were analyzed by means of duplex ultrasonography at rest and with a standardized Valsalva maneuver, with the subject in a 15% reverse Trendelenberg position. Mean levels of each of the CFV measurements were analyzed with age category, sex, and ethnicity, each adjusted for the other two. Multiple linear regression was used as a means of assessing the independent associations of age, sex, ethnicity, body mass index (BMI), and height to the CFV measurements. The average CFV diameter at rest was 11.84 mm, increasing to 14.27 mm during the Valsalva maneuver. There was a significant (P <.0001) decline in both diameter measures beginning in patients 60 years old. The CFV diameter was larger in men (12.90 mm) than in women (11.22 mm; P <.0001). The average CFV diameter in Hispanics, Africian Americans, and Asians was significantly smaller (P <.001) than in the non-Hispanic whites in multivarate analysis. The independence of these associations was confirmed by means of multivariate analysis, and positive associations of CFV...Continue Reading

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