Parturients were randomly assigned to two study groups -
remifentanil (RMF) or standard (STD). Treatment allocation
was performed using online randomization generator (www.randomization.com). Each patient was allocated
before entering the operating room. The randomization
was kept blinded for the patient, surgeon, and neonatologist.
Patients in the RMF group received a bolus of
remifentanil 1 μg/kg 30 seconds prior to induction with
thiopentone; while all other preoperative, anaesthetic,
obstetric and postoperative procedures, were identical for both groups