Interface Pressure under Elastic Stockings with Compression Pads during Posture Changes and Exercise

1999 ◽  
Vol 14 (2) ◽  
pp. 71-76 ◽  
Author(s):  
M. Hirai
Keyword(s):  
Strain Gauge ◽  
Pressure Measurement ◽  
Varicose Veins ◽  
Pressure Measurements ◽  
Interface Pressure ◽  
Elastic Materials ◽  
Muscle Pump ◽  
Strain Gauge Plethysmography ◽  
Elastic Stockings ◽  
College Of Nursing

Objective: To quantify the influence of posture and exercise on the interface pressure obtained under elastic stockings with compression pads. Design: Interface pressure measurement and plethysmographic evaluation of elastic stockings with and without compression pads. Setting: Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan. Main outcome measures: Pressure measurements in 24 volunteers were obtained beneath elastic stockings, elastic bandages and short-stretch bandages during supine resting, standing, tip-toe exercise and walking, and the effect of elastic stockings on the muscle pump of the leg was evaluated by strain-gauge plethysmography in 40 limbs with varicose veins. Results: Without compression pads, only short-stretch bandages showed a significant increase in pressure during standing and exercise. When pads were used, however, elastic stockings and bandages also showed a significant increase. With pads, significant improvement in the expelled volume during exercise was observed by strain-gauge plethysmography. Conclusions: Interface pressure under elastic materials during posture and exercise is similar to that under short-stretch bandages when compression pads are used, and pads effectively augment the muscle pump.

Non-Invasive Measurement of Venous Muscle Pump Function in the Supine Position

1992 ◽  
Vol 7 (4) ◽  
pp. 146-149 ◽  
Author(s):  
H. J. L. van Gerwen ◽  
A. J. M. Brakkee ◽  
J. P. Kuiper
Keyword(s):  
Supine Position ◽  
Strain Gauge ◽  
Venous Pressure ◽  
University Hospital ◽  
Pressure Reduction ◽  
Pump Function ◽  
Muscle Pump ◽  
Non Invasive ◽  
Strain Gauge Plethysmography ◽  
Leg Movements

Objective: A new non-invasive procedure for testing venous muscle pump function in the horizontal position is presented. Design: The test is based on an indirect method we use for measuring ambulatory venous pressure by means of strain-gauge plethysmography. Setting: University Hospital Nijmegen, The Netherlands. Patients: The results of 28 limbs of 20 patients with deep venous insufficiency are compared with 32 limbs of 16 healthy volunteers. Interventions: The same test is performed in all patients and volunteers: in the supine position a raised venous pressure in the limb is induced by venous congestion. The reduction in venous volume after standardized leg movements is measured by strain-gauge plethysmography and, with an additionally obtained pressure-volume relation, this volume reduction is converted into a pressure reduction. Main outcome measure: The reduction by standardized leg movements of an increased venous pressure is a measure for calf muscle pump function. Results: The mean pressure reduction in the patient group was 47% (standard deviation (SD) = 8%), in the healthy group 77% (SD = 6%). Conclusions: The new ‘supine venous pump function test’ is a promising method for measuring the function of the deep veins. Since the whole procedure is performed in the horizontal positon, the method offers several important advantages.

Frequency of Isolated Superficial Venous Incompetence in Patients with Venous Ulcers as Measured by Ambulatory Strain-Gauge Plethysmography

1995 ◽  
Vol 10 (2) ◽  
pp. 65-68 ◽  
Author(s):  
C. Hansson ◽  
J. Holm
Keyword(s):  
Strain Gauge ◽  
Screening Method ◽  
Leg Ulcer ◽  
Leg Ulcers ◽  
Pressure Measurements ◽  
Venous Leg Ulcer ◽  
Venous Ulceration ◽  
Venous Leg Ulcers ◽  
Strain Gauge Plethysmography ◽  
Venous Ulcers

Objective: Identification of isolated superficial venous incompetence (SVI) in patients with clinically diagnosed venous leg ulcers using a computerized strain-gauge plethysmograph. Design: Ambulatory leg ulcer patients were assessed as to the clinical diagnosis. Diagnoses other than venous ulceration were excluded. Setting: Department of Dermatology, Sahlgrenska Hospital, Göteborg, Sweden. Patients: One hundred and fourteen patients (133 legs) with venous leg ulcers were investigated. Main outcome measures: All patients were also investigated by measuring systolic ankle and arm pressure measurements. The ankle/arm (AI) was below 0.9 in 22 of the 133 ulcerated legs. Results: Of the 111 ulcerated legs with an AI>0.9, 10% had an isolated SVI. Conclusions: Isolated SVI is an important cause of venous leg ulcer development. Strain-gauge plethysmography is an inexpensive screening method, and is easy to use. Further examination with the more exact, but also more expensive and time-consuming, colour duplex should be performed in selected cases.

Venous Muscle Pump Improvement by Low Compression Elastic Stockings

1986 ◽  
Vol 1 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Jan Struckmann ◽  
Søren Jesper Christensen ◽  
Axel Lendorf ◽  
Frits Mathiesen
Keyword(s):  
Venous Return ◽  
Varicose Veins ◽  
Return Time ◽  
Physiological Effect ◽  
Compression Stocking ◽  
Subjective Improvement ◽  
Muscle Pump ◽  
Before And After ◽  
Elastic Stockings ◽  
Primary Varicose Veins

The physiological effect of a graduated low compression stocking T.E.D.(R) (Kendall Co.) was evaluated by plethysmographic musculo-venous pump determination in 22 patients with primary varicose veins. A hip length T.E.D.(R) stocking was worn for a 6-week period. Efficiency of the musculo-venous pump was determined before and after treatment and a significant increase in venous return time (RT) and expelled volume (EV) was demonstrated. This was accompanied by subjective improvement. The pressure exerted by the stockings was measured in 20 legs by the Borgnis and Van den Berg method, and the pressure was in all cases below 15 mmHg. Effect of such low compression has not previously been documented for expelled volume in patients with varicose veins.

Objective Evaluation of Compression Therapy for Deep Vein Thrombosis by Ambulatory Strain-Gauge Plethysmography

1994 ◽  
Vol 9 (1) ◽  
pp. 28-31 ◽  
Author(s):  
S. Ohgi ◽  
Y. Kanaoka ◽  
T. Mori
Keyword(s):  
Deep Vein Thrombosis ◽  
Strain Gauge ◽  
Lower Extremities ◽  
Compression Therapy ◽  
Objective Evaluation ◽  
Vein Thrombosis ◽  
Strain Gauge Plethysmography ◽  
Strong Compression ◽  
Elastic Stockings ◽  
Deep Vein

Objective: To evaluate objectively the effect of compression therapy in patients with different degrees of calf muscle pump impairment following deep vein thrombosis. Design: Prospective study. Setting: Second Department of Surgery, Tottori University School of Medicine, Yonago, Japan. Patients: Twenty-one lower extremities in 16 patients and 23 lower extremities in 13 healthy control subjects. Intervention: Application of standard compression elastic stockings (30–40 mmHg compression at the ankle) and high compression elastic stockings (40–50 mmHg at the ankle) (Sigvaris, Sweden). Main outcome measures: Comparison of expelled volume measured by ambulatory strain-gauge plethysmography. Results: Calf pump function after deep vein thrombosis was classified into three grades (normal, compensated and failed) by the expelled volume. The expelled volume increased from 0.4 ml/dl (SD 0.2) to 0.9 ml/dl (SD 0.5) following the application of strong compression. Conclusion: Compression therapy is haemodynamically effective only when using strong compression (40–50 mmHg) in patients with post-thrombotic syndrome.

Changes in Interface Pressure under Elastic and Short-Stretch Bandages during Posture Changes and Exercise

1998 ◽  
Vol 13 (1) ◽  
pp. 25-28 ◽  
Author(s):  
M. Hirai
Keyword(s):  
Clinical Practice ◽  
Prospective Study ◽  
Pressure Difference ◽  
Pressure Waveform ◽  
Pressure Measurements ◽  
Interface Pressure ◽  
Working Pressure ◽  
Time Of Application ◽  
College Of Nursing ◽  
Contraction And Relaxation

Objective: To evaluate the pressure under short-stretch and elastic bandages. Design: Prospective study in 20 healthy volunteers, comparing the two different kinds of bandages. Setting: Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan. Main outcome measures: Pressure measurements were made beneath the bandages with different initial pressures of 10, 20, 30, 40, 50, 60, and 70 mmHg, during supine resting, standing, tip-toe exercise and walking. Results: Short-stretch bandages showed a significant increase in pressure during standing and exercise at lower initial pressures compared with elastic bandages. In analysing the pressure waveform during tip-toe exercise and walking, a significantly greater pressure difference between muscle contraction and relaxation was noted for short-stretch bandages compared with elastic bandages at any initial pressures. Conclusions: Short-stretch bandages produce a higher working pressure and a larger pressure difference during exercise. However, the effect depends on the initial pressures at the time of application. In clinical practice, prevention of a decrease in pressure with time and uniform application of bandages are important.

Venous Muscle Pump Function During Pregnancy: Assessment by Ambulatory Strain-gauge Plethysmography

1990 ◽  
Vol 69 (3) ◽  
pp. 209-215 ◽  
Author(s):  
Jan R. Struckmann ◽  
Hanne Meiland ◽  
Per Bagi ◽  
Birgit Juul-Jørgensen
Keyword(s):  
Strain Gauge ◽  
Pump Function ◽  
Muscle Pump ◽  
Strain Gauge Plethysmography
Sign in / Sign up

Export Citation Format

Share Document