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Hydroxyethylstarch 10% is superior to Ringer's solution for preloading before spinal anesthesia for Cesarean section.
S M Siddik1, M T Aouad, G E Kai
1Department of Anesthesiology, American University of Beirut, Lebanon.
Canadian Journal of Anaesthesia = Journal Canadien D'Anesthesie
|August 10, 2000
Summary
Hydroxyethylstarch (HES) 10% effectively reduced hypotension during Cesarean sections compared to Lactated Ringer's solution (LR). HES preloading also lowered nausea and vomiting incidence, ensuring good neonatal outcomes.
Area of Science:
- Anesthesiology
- Obstetrics
- Pharmacology
Background:
- Spinal anesthesia for Cesarean sections can cause hypotension.
- Fluid preloading is crucial to mitigate this risk.
- Choosing the optimal fluid is key for maternal and neonatal well-being.
Purpose of the Study:
- To compare the efficacy of hydroxyethylstarch (HES) 10% versus Lactated Ringer's (LR) solution for preloading.
- To evaluate the impact on spinal-induced hypotension in Cesarean section patients.
- To assess associated maternal and neonatal outcomes.
Main Methods:
- A randomized study involving 40 women undergoing elective Cesarean section.
- Participants received either 500 ml HES 10% or 1 L LR intravenously before spinal anesthesia.
- Hypotension incidence, ephedrine requirements, nausea/vomiting, and neonatal Apgar scores were recorded.
Main Results:
- Hypotension occurred less frequently in the HES group (40%) compared to the LR group (80%).
- Mean minimum systolic blood pressure was significantly higher with HES.
- Fewer ephedrine doses were needed for hypotension in the HES group, with lower nausea/vomiting rates.
Conclusions:
- 500 ml HES 10% is more effective than 1 L LR in preventing and managing spinal-induced hypotension during Cesarean sections.
- HES preloading offers superior hemodynamic stability and reduced maternal side effects.
- Both fluids resulted in comparable, good neonatal outcomes.