title: The use of lumbar epidural analgesia during the first stage of labour in high-risk pregnancies.
mesh_terms: D000293:Adolescent; D000767:Anesthesia, Epidural / Q000009:adverse effects; D000773:Anesthesia, Obstetrical / Q000009:adverse effects; D001034:Apgar Score; D002045:Bupivacaine / Q000008:administration & dosage; D036861:Delivery, Obstetric; D005260:Female; D005313:Fetal Death; D006331:Heart Diseases; D006801:Humans; D007022:Hypotension / Q000517:prevention & control; D007226:Infant Mortality; D007746:Labor Presentation; D007743:Labor, Obstetric; D008161:Lumbosacral Region; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D011249:Pregnancy Complications, Cardiovascular; D011446:Prospective Studies; D014427:Twins; D014592:Uterine Hemorrhage / Q000175:diagnosis; D014593:Uterine Inertia
chemical_list: D002045:Bupivacaine