Effect of hypertonic saline dextran on acid-base balance in patients undergoing surgery of abdominal aortic aneurysm*

Abstract

Both the intravenous administration of 7.5% sodium chloride and the conventional fluid regimen with saline-based 6% hydroxyethyl starch solution resulted in a metabolic acidosis of equal extent. This suggests dilution of plasma buffers or a decrease in strong ion difference to be the primary cause of metabolic acidosis.