title: Continuous extradural analgesia: catch-up or top-up?
mesh_terms: D000698:Analgesia / Q000379:methods; D000767:Anesthesia, Epidural / Q000379:methods*; D000773:Anesthesia, Obstetrical / Q000379:methods*; D002045:Bupivacaine / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007263:Infusions, Parenteral; D007268:Injections, Epidural; D011247:Pregnancy
chemical_list: D002045:Bupivacaine