Fetal heart rate pattern and postparacervical fetal bradycardia.
Four hundred eight-five fetal monitor patterns were reviewed to correlate the incidence of postparacervical fetal bradycardia with the preceding fetal heart rate pattern. Three hundred and one patients received a total of 408 paracervical blocks, with an overall incidence of bradycardia of 11.3%. Patients with reassuring patterns had an incidence of 8.4%, those with concerning patterns 20%, and those with very concerning patterns 39.1%. Restricting the use of paracervical anesthesia to patients with reassuring fetal heart rate patterns should minimize this complication of obstetric anesthesia.
D000773:Anesthesia, Obstetrical / Q000009:adverse effects* / Q000379:methods; D001340:Autonomic Nerve Block / Q000009:adverse effects*; D001919:Bradycardia / Q000209:etiology* / Q000503:physiopathology; D005260:Female; D005315:Fetal Diseases / Q000209:etiology* / Q000503:physiopathology; D005318:Fetal Heart / Q000503:physiopathology*; D005323:Fetal Monitoring; D006801:Humans; D007001:Hypogastric Plexus; D008619:Mepivacaine; D011247:Pregnancy; D011343:Procaine / Q000031:analogs & derivatives
D011343:Procaine; C004616:chloroprocaine; D008619:Mepivacaine