Comparative Study of the Combination of Different Modes of Administration of Local Anesthetics in Labor Analgesia

"Ropivacaina 0,1 % is used with fentanilo 2ug/ml Also if during the dilation period a greater or equal AVE appears to 4 (inadequate analgesia) the patient can be administered a bolus of PCEA of the same solution.~If the patient is administered PCEA, the programed intermittent epidural bolus is delayed automatically 20 minutes with regard to the time in which it would have to be administrated.~If after two bolus of PCEA the analgesia keeps on being ineffective a clinical bolus is administered by the anaesthetist of 4ml of lidocaína to 1 %.~This intervention is included in the clinical practice routine"

"Ropivacaina 0,1 % is used with fentanilo 2ug/ml Also if during the dilation period a greater or equal AVE appears to 4 (inadequate analgesia) the patient can be administered a bolus of PCEA of the same solution.~If the patient is administered PCEA, the programed intermittent epidural bolus is delayed automatically 20 minutes with regard to the time in which it would have to be administrated.~If after two bolus of PCEA the analgesia keeps on being ineffective a clinical bolus is administered by the anaesthetist of 4ml of lidocaína to 1 %.~In the group of pure boluses 10ml / h of perfusion will be administered through the high flow and standard flow infusion system, and the maximum sensory level achieved will be compared.~This intervention is included in the clinical practice routine"

"Ropivacaina 0,1 % is used with fentanilo 2ug/ml Also if during the dilation period a greater or equal AVE appears to 4 (inadequate analgesia) the patient can be administered a bolus of PCEA of the same solution.~If the patient is administered PCEA, the programed intermittent epidural bolus is delayed automatically 20 minutes with regard to the time in which it would have to be administrated.~If after two bolus of PCEA the analgesia keeps on being ineffective a clinical bolus is administered by the anaesthetist of 4ml of lidocaína to 1 %.~In the group of pure boluses 10ml / h of perfusion will be administered through the high flow and standard flow infusion system, and the maximum sensory level achieved will be compared.~This intervention is included in the clinical practice routine"