Passive leg raising does not produce a significant or sustained autotransfusion effect

F. A. Gaffney, B. C. Bastian, E. R. Thal, James M Atkins, C. G. Blomqvist

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Passive leg raising is widely used to treat hypotension associated with hypovolemia. Presumably gravity causes a central translocation of leg venous blood and an increase in filling pressure, cardiac output, and arterial pressure. Ten healthy volunteers, 25 to 35 years old, had measurements of heart rate, blood pressure, and cardiac output in the supine position after 20 sec and 7 min of 60° passive elevation. The protocol was performed 3 and 45 min after the subjects changed from an ambulatory upright to a supine position. Stroke volume and cardiac output increased transiently (8-10%) when the legs were raised after 3 min rest in the supine position. By 7 min of leg elevation, these beneficial effects disappeared. After 45 min supine, leg raising had no effect on stroke volume or cardiac output but increased blood pressure (4 mm Hg) by increasing peripheral resistance (15%). Thus, leg raising, like application of the MAST trousers, fails to produce any sustained increase in cardiac output or stroke volume. Small venous leg volumes and time-dependent changes in the distribution of venous volume and compliance may explain the absence of any sustained 'autotransfusion' effect.

Original languageEnglish (US)
Pages (from-to)190-193
Number of pages4
JournalJournal of Trauma
Volume22
Issue number3
StatePublished - 1982

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Autologous Blood Transfusions
Leg
Cardiac Output
Supine Position
Stroke Volume
Blood Pressure
Cardiac Volume
Hypovolemia
Gravitation
Vascular Resistance
Hypotension
Compliance
Healthy Volunteers
Arterial Pressure
Heart Rate
Pressure

ASJC Scopus subject areas

  • Surgery

Cite this

Gaffney, F. A., Bastian, B. C., Thal, E. R., Atkins, J. M., & Blomqvist, C. G. (1982). Passive leg raising does not produce a significant or sustained autotransfusion effect. Journal of Trauma, 22(3), 190-193.

Passive leg raising does not produce a significant or sustained autotransfusion effect. / Gaffney, F. A.; Bastian, B. C.; Thal, E. R.; Atkins, James M; Blomqvist, C. G.

In: Journal of Trauma, Vol. 22, No. 3, 1982, p. 190-193.

Research output: Contribution to journalArticle

Gaffney, FA, Bastian, BC, Thal, ER, Atkins, JM & Blomqvist, CG 1982, 'Passive leg raising does not produce a significant or sustained autotransfusion effect', Journal of Trauma, vol. 22, no. 3, pp. 190-193.
Gaffney, F. A. ; Bastian, B. C. ; Thal, E. R. ; Atkins, James M ; Blomqvist, C. G. / Passive leg raising does not produce a significant or sustained autotransfusion effect. In: Journal of Trauma. 1982 ; Vol. 22, No. 3. pp. 190-193.
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