Accidental dural procedure and an occluded Tuohy needle.
Furlonger
A
A
Wrench
I
I
D000328:Adult; D015360:Analgesia, Epidural / Q000295:instrumentation*; D016362:Analgesia, Obstetrical / Q000295:instrumentation*; D004388:Dura Mater / Q000293:injuries*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D009339:Needles; D011247:Pregnancy