Background: The objective of the present study was to explore the resuscitation effects of starch nanospheres solution on hemodynamics in rats with hemorrhagic shock.
Methods: A total of 20 Sprague-Dawley rats were randomly divided into 2 groups: resuscitation group 1 (infusion with Ringer's solution) and resuscitation group 2 (infusion with starch nanospheres solution) with 10 rats per group. The rats in resuscitation groups 1 and 2 were subjected to hemorrhagic shock, and resuscitation was performed with Ringer's solution and starch nanospheres solution. The changes in the hemodynamic values of the rats in both groups were observed and recorded.
Results: The hemodynamic values included the systolic blood pressure, diastolic blood pressure, mean arterial blood pressure, heart rate, and respiratory rate. After resuscitation, the systolic blood pressure, diastolic blood pressure, mean arterial pressure, and heart rate in resuscitation group 2 had reverted back to the base values (P > 0.05). The systolic blood pressure, diastolic blood pressure, and mean arterial pressure were lower at all points in resuscitation group 1 than in resuscitation group 2 (P < 0.05). The respiratory rate was more rapid after resuscitation at 30 and 60 min in resuscitation group 1 than in resuscitation group 2 (P < 0.05).
Conclusions: Starch nanospheres solution expands the circulating blood volume and improves the hemodynamics. It also increases the effective circulating blood volume and improves the shock symptoms of effective hypovolemia.
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