| Autor: |
D.J.A. Scott, K. G. Mercer, David C Berridge, C. Thornton, M. J. Weston |
| Rok vydání: |
1999 |
| Předmět: |
|
| Zdroj: |
Phlebology. 14:12 |
| ISSN: |
0268-3555 |
| DOI: |
10.1007/s005230050023 |
| Popis: |
Objective: Investigation of the effects of high- and low-ankle-pressure, above- and below-knee compression stockings on the haemodynamics of normal and superficially incompetent venous systems. Design: Prospective duplex study of a normal group and a venous incompetence group randomised to high- or low-pressure stockings. Setting: Vascular services of a University Hospital. Subjects: Six subjects with normal venous haemodynamics (12 limbs) and 12 patients with superficial venous incompetence (20 limbs). Methods: Subjects wore below-knee and then above-knee stockings for 1 week each. Duplex scans were performed at the outset and end of the study and on fitting and after wearing each stocking type. Main outcome measures: Duplex-derived femoral and popliteal venous velocities were measured and indexed against the initial velocity. Results: Below-knee stockings produced only minor changes. Above-knee stockings produced increased velocities in normal subjects. Similar changes were only seen with higher-pressure stockings in patients with incompetence. Conclusion: Above-knee, high-ankle-pressure stockings produce increased deep venous flow velocities. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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