The use of “exercise tests” in connection with venous pressure measurements for the detection of venous obstruction in the upper and lower extremities

Veal, J. Ross; Hussey, Hugh H.

doi:10.1016/s0002-8703(40)91117-6

Cited by 26 publications

(3 citation statements)

References 4 publications

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“…Doupe, Krynauw and Snodgrass [1938] found that release from cold-vasoconstriction did not affect the local venous pressure (and so presumably the pressure gradient), though painful stimulation decreased it. Veal and Hussey [1940] found that exercising the forearm and hand muscles increased the median basilic venous pressure by less than 10 mm. of water.…”

Section: Variations In Venous Pressure Gradientmentioning

confidence: 93%

Baroplethysmography: A Method of Estimating Blood Flow

Pickles¹

1952

Exp Physiol

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IN an earlier paper [Pickles, 1949] a modification of the plethysmographic method, which may be called baroplethysmography, was proposed as a solution of the problem of estimating the blood flow through the human mammary gland. It has since been shown by this method [Pickles, 1950[Pickles, , 1951 that the estimated mammary blood flow may vary in a number of ways, suggesting control by at least one vasomotor reflex and by the hormonal changes of the menstrual cycle, pregnancy, and the different phases of lactation. These results, and others obtained thermometrically [Pickles, 1952 a, b], show that mammary blood flow estimations on human subjects are of physiological and clinical value. It seems desirable therefore to review in detail the working of the baroplethysmographic instrument, and to attempt, on the basis of continued experience of its use, to assess its reliability for both mammary and other blood flow estimations.The original paper [1949] outlined the principle and the physical theory of the instrument. No direct evidence of its reliability could then be offered: human mammary blood flow could not be measured by any other method for comparison, and a technical difficulty which will be described vitiated attempts to apply the instrument to any part, such as a hand, where comparisons with a standard method could be made. This difficulty has now been largely overcome, and the present paper gives first an account of such comparative experiments on the hand.METHODS.The Plethysmograph.-The method to be described can be applied to any part that can be enclosed in a plethysmograph. It depends on certain characteristics of the venous drainage from the part, and it is therefore essential that the seal of the plethysmograph should not press on the veins. The seal has, moreover, to withstand changes of plethysmograph air.pressure up to + 3 mm. Hg, and this is the cause of the difficulty mentioned above in applying the instrument to the hand: the usual types of plethysmograph seal either interfere with the venous drainage to a slight extent, or are incapable of withstanding the necessary pressure changes. The difficulty does not arise, however, when the method is applied to the breast, since a plethysmograph can be con-175

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Section: Variations In Venous Pressure Gradientmentioning

confidence: 93%

Baroplethysmography: A Method of Estimating Blood Flow

Pickles¹

1952

Exp Physiol

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“…the clinical status of the venous return, the controls of the venous pressure with phlebodynamometric tests (12, 37, 74, 75, the controls of the venous pressure with phlebodynamometric tests (12,37,74,75,80,88,89). the type, length and situation of the coagulum demonstrated by phlebograms, with special consideration for the patency of the central outlets of the cephalic and "first rib collateral" veins (3,27,29,30,31,61,74,76,85,86,87).…”

Section: The Treatment In Each Case Is Individually Guided By Tmentioning

confidence: 99%

“…Pulmonary embolisms are very rare (1,3,6,7,11,28,47,51,59,74,75,83), but late sequelae of thrombosis are more frequent and crippling than classically assumed after conservative treatments (1,2,3,13,19,20,23,43,46,47,61,66,74,75,80,86,87,88,89,91). The understanding of this pathology has changed in the past thirty years.…”

Section: Introductionmentioning

confidence: 99%