title: A hazard of double-orifice epidural catheters.
mesh_terms: D000368:Aged; D000767:Anesthesia, Epidural / Q000009:adverse effects*; D002404:Catheterization / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D006323:Heart Arrest / Q000209:etiology*; D006801:Humans; D013346:Subarachnoid Space