• Andrzej Marciniak, Maria Wujtewicz, and Radosław Owczuk.
• Department of Anaesthesiology and Intensive Therapy, Medical University of Gdansk, Poland. amarcin@gumed.edu.pl
• Anaesthesiol Intensive Ther. 2013 Jan 1;45(1):14-9.

BackgroundFluid therapy is the most commonly used treatment to prevent hypotension associated with spinal anaesthesia. The aim of this study was to test the hypothesis that a balanced solution of 6% hydroxyethyl starch will have a more beneficial impact on the condition of newborns at birth than an unbalanced 6% solution of HES.MethodsThe study participants included 51 healthy parturients undergoing elective caesarean section with spinal anaesthesia. Patients received a transfusion of 500 mL of unbalanced 6% HES (Voluven) or balanced 6% HES (Tetraspan) prior to anaesthesia. The condition of the newborn was assessed using the Apgar score, and the acid-base balances of venous and arterial umbilical cord blood were also measured.ResultsThe incidence of hypotension after spinal anaesthesia was 80% in Group A and 76.9% in Group B (P = 1.0). There were no differences between the two groups in the total doses of ephedrine and no differences between treatment groups in Apgar scores. Also, no differences in acid-base balance parameters (pH, H(+), pCO(2), pO(2), HCO(3)(-), BE) were found.ConclusionA balanced 6% solution of hydroxyethyl starch (HES 130/0.42) did not significantly influence the condition of the newborns at birth or the acid-base and electrolyte concentration of newborns compared to an unbalanced solution of 6% hydroxyethyl starch (HES 130/0.4).

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