Changes in RAP, AP (max and min), Ht and R.R. induced by daily perfusion with 250 and 500 ml Dextran 40 in a 10% isotonic solution were examined in two groups of patients with peripheral obstructive arteriopathy. Systemic AP showed no appreciable changes, whereas RAP and Ht fell in direct proportion of the dose given. This effect tended to disappear after 96 hr. Administration of this plasma volume extender 4 days per week is recommended.
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