Objective:

To determine the effectiveness of the technique of Nesi to epidural blockage in comparison to the technique of Pitkin in obstetric surgery. Material and methods: a retrospective observational study was designed. Two techniques of epidural blockeage were analyzed for elective type or relative emergency section surgery, ASA II or III been physical. Two groups were formed at random, the first group 'A', received regional anesthesia for the pursuit of the epidural space with 110 patients who were applied the technique of Nesi. The group "B" received Pitkin technique with 110 patients. Both groups received lidocaine 2% 200 mg 160 mg lidocaine-epinephrine. They measured the time of installation and extension of the sensory and motor blockage. The complications were quantified. The quality of the analgesia after the administration of local anaesthetic was measured at 5, 10, 15 minutes. Results. Dissemination achieved with local anesthetic technique Nesi had a broadcasting until the metamera T4 in 83 patients (75%), while Pitkin technique was of 31 patients (28%). (p < 0.052). Bromage measurement after 15 minutes, was observed in level 2 in 73 patients (66%) with Nesi technique and the technique of Pitkin 28 (25%) (p < 0.052). The largest number of complications occurred with the technique of Pitkin. The EVA was 99% (109) painless with the technique of Nesi and 65% (73) in the Pitkin (p < 0.000). Conclusions. The most common complications for the identification of the epidural space were observed with the technique of Pitkin, these may decrease using saline solution for this same purpose.