Incidence of Pruritus Using Intrathecal Fentanyl Versus Epidural Fentanyl to Initiate Labour Analgesia.

"All procedures performed will be standardized. When neuraxial analgesia is required, an non-implicated anesthesiologist will performe the technique (not blind) The procedure will involve two steps. The first will involve an intraspinal injection of the solution using a 25-gauge Whitacre needle, while the second will be administered through the epidural catheter.~STEP 1: Intraspinal SPINAL Group: Bupivacaine 0.25% Isobaric 1 ml + Fentanyl 15 mcg, (0,3ml)~STEP 2: Epidural SPINAL group: 0.9% NaCl 2 ml."

"All procedures performed will be standardized. When neuraxial analgesia is required, an non-implicated anesthesiologist will performe the technique (not blind) The procedure will involve two steps. The first will involve an intraspinal injection of the solution using a 25-gauge Whitacre needle, while the second will be administered through the epidural catheter.~STEP 1: Intraspinal EPI Group: Bupivacaine 0.25% Isobaric 1 ml + NaCl 0.9% 0.3 ml~STEP 2: Epidural EPI group: Fentanyl 100 mcg, (2 ml of a concentration of 50 mcg/ml)"