The Feasibility of Underwater Computerised Strain Gauge Plethysmography and the Effects of Hydrostatic Pressure on the Leg Venous Haemodynamics

The Feasibility of Underwater Computerised Strain Gauge Plethysmography and the Effects of Hydrostatic Pressure on the Leg Venous Haemodynamics

Background: Strain gauge plethysmography (SGP) is employed to evaluate venous drainage of the lower leg. Methods: In this study, SGP was used to evaluate the effects of the hydrostatic pressure (HP) of water on venous volume (VV), expelled volume, and ejection fraction (EF) in 22 healthy legs before...

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Bibliographic Details
Main Authors: Giovanni Mosti, Giorgio Bergamo, Sara Oberto, Daniele Bissacco, Leonardo Chiodi, Dimitris Kontothanassis, Alberto Caggiati
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:EJVES Vascular Forum
Online Access:http://www.sciencedirect.com/science/article/pii/S2666688X20300204
Description
Summary:Background: Strain gauge plethysmography (SGP) is employed to evaluate venous drainage of the lower leg. Methods: In this study, SGP was used to evaluate the effects of the hydrostatic pressure (HP) of water on venous volume (VV), expelled volume, and ejection fraction (EF) in 22 healthy legs before and during immersion in water. Results: HP reduced VV by 100% and even more during underwater (UW) exercise, making calculation of the UW EF possible. Discussion: UW SGP is feasible and indicates that HP improves venous haemodynamics. This study suggests that including UW leg exercise in the rehabilitation protocols of patients with chronic venous disease may be useful. Keywords: Strain gauge plethysmography, Underwater compression, Underwater ejection fraction, Underwater venous volume.
ISSN:2666-688X

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