Assessment of paracervical nerve block anaesthesia during labour.
An assessment of paracervical nerve block anaesthesia was made in 118 women during labour using 0.5% bupivacaine with 1:200,000 parts of adrenaline added. The 82 multiparae were each given a single block and the 36 primigravidae a continuous block to try to provide the sole means of analgesia throughout the first stage of labour.Only 48% of the primigravidae required no other form of analgesia, as against 72% of the multiparae.Complications included a 17% incidence of maternal haemorrhage during insertion of the continuous needle, an overall fetal bradycardia rate of 11%, and two perinatal deaths following single paracervical block. It is concluded that the use of continuous paracervical block should be discontinued, and that amide-type local anaesthetic agents should not be used for single paracervical block.
D000765:Anesthesia, Conduction / Q000295:instrumentation; D000773:Anesthesia, Obstetrical / Q000295:instrumentation; D000775:Anesthesia, Spinal / Q000009:adverse effects; D000813:Anilides; D001919:Bradycardia / Q000139:chemically induced; D002574:Cervical Vertebrae; D002584:Cervix Uteri; D005260:Female; D005313:Fetal Death / Q000209:etiology; D005315:Fetal Diseases / Q000139:chemically induced; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D007743:Labor, Obstetric; D010298:Parity; D010875:Pipecolic Acids; D011247:Pregnancy
D000813:Anilides; D010875:Pipecolic Acids