Multimodal Approach to the Intrathecal Catheter for Obstetric Accidental Dural Puncture

collection of data from the medical record: 1. During epidural space puncture = cerebrospinal fluid (CSF) reflux, presence of glucose / strip, saline injection, intrathecal catheter insertion, intrathecal levobupivacaine and sufentanil injection, catheter insertion time, number of punctures, function of the person performing the procedure. 2. Analgesia and hemodynamics during labor, blood pressure, pulse rate, amount of local anesthetic used, whether emergency cesarean section was performed 3. Demographic data (age, weight, height, body mass index (BMI)) 4. Post-partum monitoring of decubitus or orthostatic headaches, intensity, any other associated clinical signs 5. Analgesics used and their efficacy 6. The use of one or more blood patches, with the volume injected and their efficacy 7. Identification of the breach during epidural analgesia or after delivery 8. Call the patient at 1 week to reassess the episode and its consequences.