A comparison of propofol and ketamine as induction agents for cesarean section.
OBJECTIVE
To compare the neonatal and maternal effects of propofol and ketamine as induction agents for elective cesarean section.


METHODS
Randomized, double-blind study.


METHODS
Inpatient Obstetrics Department of Sappasitthiprasong Ubonratchatani Hospital, Ubonratchatani province, Thailand


METHODS
2 groups of 50 patients each receiving either 2 mg/kg propofol or 1 mg/kg ketamine for the induction of anesthesia.


RESULTS
The time from the induction to cord clamping (I-C), the time from the uterine incision to cord clamping (U-C), the hemodynamic changes, sleep'quality, dream, recall, awareness, Postoperative nausea & vomiting (PONV), and Apgar scores were studied In the ketamine group Systolic Blood Pressure and Diastolic Blood Pressure rose about 10-25% of the baseline after the induction, intubation, skin incision, and cord clamping (p < 0.001) while in the propofol group only the Heart Rate rose (p < 0.036) after the induction, the intubation, the skin incision, and cord clamping. Apgar scores, the I-C time, the U-C time, the age, the weight and total amount of methergin and oxytocin were not significantly different in both groups. No incidence of awareness, nightmare and ketamine's phychomimetic side effects was found The incidence of unpleasant light sleep, dreams and PONV was low. Most patients were willing to have the same anesthetic technique for the next cesarean section (81.3% of the propofol group & 86% of the ketamine group).


CONCLUSIONS
Both propofol and ketamine can be used as alternative induction agents to thiopental. The addition of sevoflurane immediately after the induction, together with the use of midazolam and morphine after delivery shall prevent awareness and ketamine's phychomimetic side effects. However ketamine was cheaper and although Systolic Blood Pressure and Diastolic Blood Pressure were elevated they were within an acceptable range.
Wanna
Ophas
O
Department of Anesthesiology, Sappasitthiprasong Ubonratchatani Hospital, Ubonratchatani 34000, Thailand. opasvanna@hotmail.com
Werawatganon
Thewarug
T
Piriyakitphaiboon
Sonthaya
S
Taesiri
Busakorn
B
D000328:Adult; D018686:Anesthetics, Intravenous / Q000494:pharmacology; D002585:Cesarean Section; D005260:Female; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D007649:Ketamine / Q000494:pharmacology; D015742:Propofol / Q000494:pharmacology
D018686:Anesthetics, Intravenous; D007649:Ketamine; D015742:Propofol