This prospective multicenter observational study is being conducted at the Gregorio Marañón University General Hospital and the La Paz University Hospital in Madrid, Spain. The recruitment period began on January 12, 2026, and will continue until February 12, 2027. Patients over 18 years of age requesting epidural analgesia for labor are included. Exclusion criteria are: age under 18; stillbirth; continuous spinal anesthesia; refusal to participate in the study. The primary objective of the study is to calculate the incidence of epidural analgesia failure during labor. Secondary objectives are: identification of potential risk factors for epidural analgesia failure; failure of epidural anesthesia for emergency cesarean birth; maternal postpartum recovery at 24 and 48 hours using the Spanish-validated version of ObsQoR-10 questionnaire.
Age range
18 Years
Sex
FEMALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Failed epidural analgesia during labor
Timeframe: All duration of labour (from admission to labour ward until delivery) in patients with an initial adequate pain relief after epidural analgesia initiation.