Colloid Preload Versus Crystalloid Co-load in Cesarean Section Under Spinal Anesthesia

Comparison between colloid preload and crystalloid co-load in cesarean section under spinal anesthesia. 1. The primary outcome was the incidence of hypotension 2. Secondary outcomes included the incidence of severe hypotension, total ephedrine dose, nausea and vomiting and neonatal outcome assessed by Apgar scores and umbilical artery blood gas analysis