Plethysmographic studies of peripheral blood flow in man

Abramson, David I.; Zazeela, Herman; Oppenheimer, B. S.

doi:10.1016/s0002-8703(39)90627-7

Cited by 28 publications

(7 citation statements)

References 9 publications

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“…Reduction in foot blood flow during and after smoking occurred throughout pregnancy and postnatally, being most marked and reaching statistical significance when the resting foot flow was highest. These results are in agreement with the findings of many authors that smoking and nicotine cause vasoconstriction in the foot (Coffman et al, 1958;Wood, 1960;Abramson et al, 1939;Lewis and Redisch, 1956;Franke and Hertzman, 1940;Coffman, 1966Coffman, , 1967Coffman, and 1969.…”

Section: Foot Bloodjeowsupporting

confidence: 92%

Cigarette Smoking in Pregnancy: Differences in Peripheral Circulation Between Smokers and Non‐smokers

Ashton

1975

BJOG

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Ten smokers and ten non-smokers were followed serially from 12 to 16 weeks of pregnancy to six weeks postnatally. Measurements of calf and foot blood flow and toe and finger skin temperature were made at 4 to 6 week intervals in both groups, and the acute effects on the peripheral circulation of smoking one standard cigarette were also measured in the smokers at each stage of pregnancy. Comparison between the smokers and non-smokers showed that in the last trimester of pregnancy smokers had significantly higher foot blood flow and toe and finger temperature than non-smokers. These circulatory variables rose during the period of pregnancy studied in smokers but altered little in non-smokers. There was no significant difference in calf blood flow between the groups. Smoking a cigarette during pregnancy caused a fall in foot blood flow and in finger and toe skin temperature. Smoking increased calf blood flow between 12 and 25 weeks of pregnancy but decreased it in late pregnancy. Previous investigations of blood flow in pregnancy have not differentiated between smokers and non-smokers. It is suggested that the rise in foot blood flow and skin temperature believed to occur generally during pregnancy applies mainly to smokers. Some possible reason for differences in skin blood flow between smokers and non-smokers in pregnancy are discussed.

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Section: Foot Bloodjeowsupporting

confidence: 92%

Cigarette Smoking in Pregnancy: Differences in Peripheral Circulation Between Smokers and Non‐smokers

Ashton

1975

BJOG

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“…at 320 C, ambient temperature 24-26.5°C. Abramson, Zazeela & Marrus (1939) give 1-3-6-6 c.c. under similar conditions, but with the foot dependent.…”

Section: Discussionmentioning

confidence: 99%

The effect of local temperature on blood flow in the human foot

Allwood¹,

Burry²

1954

The Journal of Physiology

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Freeman (1935) was the first to measure directly the effect of local temperature on blood flow in an extremity. He obtained figures for volume blood flow in the hand at local temperatures from 18 to 410 C and found that the curve for blood flow against temperature was similar to that described by Lewis (1929) for the effect of temperature on digital pulse volume. In the forearm Barcroft & Edholm (1943) established figures for blood flow using water-baths at different temperatures, and later (1946) extended these to the forearm in air.In the normal foot the resting blood flow has been measured at one or two local temperatures by various workers

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“…The 'after-drop' was believed to be due to a persistence of the vasoconstriction for a short time after the venous distension was reduced. Abramson, Zazeela & Marrus (1939) described a phenomenon similar to the after-drop and probably identical with it. They noted it during plethysmographic studies of the blood flow in the foot or the hand when these parts were below heart level.…”

mentioning

confidence: 66%

“…4B shows that increasing the rate of flow by local heat may decrease the size of the afterdrop if it leads to more blood being collected in unit time. Unless the collecting period is very brief, it may appear that the after-drop has been abolished altogether by the heat, as Abramson et al (1939) Fig. 5, tracing B, shows that the part within the plethysmograph decreases in volume in a similar manner but 632 P.GASKELL AFTER-DROP IN PLETHYSMOGRAPHY with little, if any, increase in distension of the veins at the moment of inflation of the occlusion cuff.…”

Section: Results and Commentsmentioning

confidence: 97%

The significance of the ‘after‐drop’ in venous occlusion plethysmography

Gaskell¹

1956

The Journal of Physiology

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Plethysmographic studies of peripheral blood flow in man

Cited by 28 publications

References 9 publications

Cigarette Smoking in Pregnancy: Differences in Peripheral Circulation Between Smokers and Non‐smokers

Cigarette Smoking in Pregnancy: Differences in Peripheral Circulation Between Smokers and Non‐smokers

The effect of local temperature on blood flow in the human foot

The significance of the ‘after‐drop’ in venous occlusion plethysmography

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