Passive Leg Raising Does Not Produce a Significant or Sustained Autotransfusion Effect

Effects of passive leg raising on cardiovascular functions as analyzed by fingertip pulse pressure profiles

“…Previous studies on PLR in healthy subjects reported transient changes of cardiovascular dynamics by PLR, but failed to show significant lasting effects of PLR [4][5][6][7]. In contrast, the present study revealed significant sustained effects on cardiovascular parameters even at 10 min after the start of PLR.…”

“…The aim of this procedure is to improve blood circulation by facilitating venous return from the lower limbs [1][2][3][4][5][6][7][8][9][10]. However, several studies have cast doubts on the efficacy and duration of the effects of PLR [2][3][4].…”

Kurzdarstellung

“…Wenn keine Hinweise auf ein Trauma vorliegen, heben Sie die Beine an, um eine weitere vorübergehende Verbesserung (< 7 min) der Lebenszeichen zu erreichen [815][816][817]. Die klinische Signifikanz dieser vorübergehenden Verbesserung ist ungeklärt.…”

Trendelenburg Position: “Put to Bed” or Angled Toward Use in Your Unit?

“…Table 1 outlines the predominant effect of Trendelenburg positioning on hemodynamic and physiological variables across studies, as well as less common changes that were also statistically significant. First, CO/CI increased significantly in healthy populations, 12,15,23 although the effects were transient, lasting 1 to 3 minutes. Of the 13 studies of acutely ill patients, almost half showed significant increases in CO/CI with a mean change of 8%, but these effects were largely transient, lasting 3 to 5 minutes.…”

“…a Based on information from Shenkin et al, 7 Guntheroth and Abel, 8 Reed and Wood, 9 Taylor and Weil, 10 Sibbald et al, 11 Gaffney et al, 12 Bivins et al, 13 Pricolo et al, 14 Haennel et al, 15 Wong et al, 16 Gentili et al, 17 Reich et al, 18 Armstrong et al, 19 Sing et al, 20 McHugh et al, 21 Ostrow et al, 22 Terai et al, 23 Fahy et al, 24 Boulain et al, 25 Reuter et al, 26 Bertolissi et al, 27 Naylor et al, 28 Monnet et al, 29 Mekis and Kamenik, 30 and Kweon et al independent intervention routinely used to treat hypotension/shock almost half of the time. Despite the limited hemodynamic effects and adverse consequences associated with use of the Trendelenburg position, anecdotal evidence suggests that clinicians still use this position today.…”