الفهرس 
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Abstract
Background: Spinal anesthesia is frequently used for cesarean delivery because of its rapid onset, a dense neural block, little risk of local anesthetic toxicity and minimal transfer of drug to the fetus. General anesthesia is preferred in emergency obstetric situations, such as cord prolapse, in which there is a need for reliable induction, and also bleeding placenta previa. Unfortunately It is frequently accompanied by hypotension, which may be defined in absolute terms as a systolic blood pressure (SBP) of 90 or 100 mmHg or in relative terms as a percentage (20% fall from baseline).
Objective: The aim of this study is to compare hypertonic saline(3%)and normal saline (0.9%) in preventing spinal induced hypotension.
Patients and Methods: In our study, 40 patients were randomly divided into 2 equal groups: group A: received hypertonic saline (3%) (4ml/kg) . group B: received normal saline (0.9%)(13ml/kg)
Results: Our study showed that hypertonic saline (3%) was more effective than normal saline to prevent spinal induced hypotension and it did not affect the neonatal outcome.
Conclusion: Neonatal outcome was excellent with use of either hypertonic saline (3%) or normal saline (0.9%) as a preload for the parturients who received spinal anesthesia before cesarean section.