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

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.

Venous muscle pump function in patients with primary lymphoedema: Assessment by ambulatory strain gauge plethysmography

1986 ◽  
Vol 73 (11) ◽  
pp. 886-887 ◽  
Author(s):  
J. Struckmann ◽  
H. H. Strange-Vognsen ◽  
J. Andersen ◽  
O. Hauch
Keyword(s):  
Strain Gauge ◽  
Pump Function ◽  
Muscle Pump ◽  
Strain Gauge Plethysmography

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.

Ambulatory Strain Gauge Plethysmography: Correlation to Symptoms and Skin Changes in Patients with Venous Insufficiency

1987 ◽  
Vol 2 (2) ◽  
pp. 75-80 ◽  
Author(s):  
Jan Reinhold Struckmann
Keyword(s):  
Strain Gauge ◽  
Predictive Value ◽  
Venous Insufficiency ◽  
Venous Return ◽  
Return Time ◽  
Present Material ◽  
Skin Changes ◽  
Muscle Pump ◽  
Strain Gauge Plethysmography ◽  
Normal Controls

Ambulatory strain gauge plethysmography (ASPG) is one of several different methods applicable in the quantification of venous insufficiency. The present material demonstrates a correlation between this muscle pump quantification and symptoms in patients with venous insufficiency. Patients with few symptoms differed in their muscle pump values from those with many symptoms. A correlation was demonstrated between skin changes and the measured degree of pump dysfunction. In 81 patients and eight normal controls, the diagnostic validity of ambulatory strain gauge plethysmography was calculated. The predictive value of a negative test (PVneg) for RT (venous return time) was 0.94 and for EV (expelled volume) 0.75. Correspondingly the predictive value of a positive test (PVpos.) was found to be 1.0 for RT and 1.0 for EV.

Diagnosis of Deep Vein Thrombosis by Combination of Doppler Ultrasound Flow Examination and Strain Gauge Plethysmography

1982 ◽  
Vol 47 (02) ◽  
pp. 141-144 ◽  
Author(s):  
H Bounameaux ◽  
B Krähenbühl ◽  
S Vukanovic
Keyword(s):  
Deep Vein Thrombosis ◽  
Negative Predictive Value ◽  
Doppler Ultrasound ◽  
Strain Gauge ◽  
Predictive Value ◽  
Lower Limbs ◽  
Vein Thrombosis ◽  
Non Invasive ◽  
Strain Gauge Plethysmography ◽  
Deep Vein

SummaryDoppler ultrasound flow examination, strain gauge plethysmography and contrast venography were performed in 160 lower limbs of 80 in-patients. Deep vein thrombosis (DVT) was suspected in 87 limbs. Using measurement of venous stop-flow pressure, the Doppler method had an overall sensitivity of 83%. By combined use of Doppler and Plethysmography, sensitivity was increased to 96%. Specificity was 62% and 51%, respectively. With a positive and a negative predictive value of 80% and 73%, respectively, the combination of both non-invasive methods cannot reliably replace venography in the diagnosis of DTV, although all (40/40) thromboses proximal to or involving the popliteal segment were detected by either Doppler and Plethysmography or both.After exclusion of 14 patients (18%) suffering from conditions known to alter the results of these non-invasive methods, the positive predictive value of abnormal findings in both Doppler and Plethysmography was increased to 94% for suspected limbs, whilst negative predictive value of both negative Doppler and Plethysmography was 90%, allowing the avoidance of venography in these patients.

The use of automated strain gauge plethysmography in the diagnosis of deep vein thrombosis

2002 ◽  
Vol 75 (896) ◽  
pp. 648-651 ◽  
Author(s):  
N A Maskell ◽  
S Cooke ◽  
D J Meecham Jones ◽  
J G Prior ◽  
R J A Butland
Keyword(s):  
Deep Vein Thrombosis ◽  
Strain Gauge ◽  
Vein Thrombosis ◽  
Strain Gauge Plethysmography ◽  
Deep Vein

Venous Muscle Pump Function following Reconstructive Arterial Surgery

1988 ◽  
Vol 3 (3) ◽  
pp. 169-173
Author(s):  
Jan R. Struckmann
Keyword(s):  
Clinical Evidence ◽  
Venous Return ◽  
Clinical Results ◽  
Return Time ◽  
Venous Disease ◽  
Arterial Reconstruction ◽  
Pump Function ◽  
Muscle Pump ◽  
Before And After ◽  
Reconstructive Arterial Surgery

The changes that occur in the leg venous muscle pump function were studied before and after proximal arterial reconstruction in 25 patients with claudication but without rest pain or clinical evidence of venous disease. There was found a significant increase in the distal blood pressure index corresponding to excellent clinical results. The venous muscle pump was affected such that venous return time, RT, decreased significantly ( P < 0.02) but expelled volume, EV, was not significantly affected. It is concluded that these findings may be explained by a postoperative increase in exercise bloodflow and that alterations in RT not only can be caused by changes in venous reflux but also by alterations in arterial input to the leg. The muscle pump capability to pump blood towards the heart was unaffected (EV constant) and it can thus not be incriminated for the postreconstructive oedema often found after arterial surgery. When evaluating isolated RT changes it is necessary to consider whether the arterial input to the pump is constant.

scholarly journals The Influence of Compressive Stockings on the Haemodynamics in the Lower Extremities

1988 ◽  
Vol 3 (3) ◽  
pp. 147-154 ◽  
Author(s):  
A.J.M. Brakkee ◽  
J.P. Kuiper
Keyword(s):  
Healthy Subject ◽  
Chronic Venous Insufficiency ◽  
Venous Insufficiency ◽  
Venous Pressure ◽  
Lower Extremities ◽  
Limb Volume ◽  
Pump Function ◽  
Muscle Pump ◽  
Elastic Stocking ◽  
Tissue Compression

The influence of an elastic stocking upon the venous muscle pump function in a healthy subject and in a patient with chronic venous insufficiency is discussed. Taking into account the alinear relationship between venous pressure and limb volume the experiences concerning the effects of tissue compression, some of which seem to be contradictory, are clarified.

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