Fluid Management for Cesarean Section

Fluid Management With Ringer's and 6% Starch for Cesarean Section After Epidural or Spinal Anesthesia

Cesarean section-associated hypotension is one of the pivotal factors to influence the Apgar Score of children and related with the stable hemostasis during the whole process of labor. How to keep circulation in a consistent stability is yet to be known. The investigators hypothesized that different fluids, crystalloids or colloids, can produced varying effects in keeping the physiological environment of labor from significant fluctuating.

Inclusion Criteria:

• 21-40 yr
• First time of delivery
• ASA status I-II
• No premature
• No genetic and infectious diseases
• Chinese

Exclusion Criteria:

• < 21 yr
• > 40 yr
• Subjects with cardiac and pulmonary disorders
• Dislocation of placenta
• Pregnant hypertension
• Allergy to local anesthetics
• Unwilling to cooperation
• Need intraoperative administration of vascular active agents
• With significant delivery side effects