British Journal of Anaesthesia, Vol 76, Issue 2 322-324, Copyright © 1996 by The Board of Management and Trustees of the British Journal of Anaesthesia
D. W. Elliott, F. Voyvodic and P. Brownridge
We describe a patient who received an apparently uneventful extradural
block in labour but developed rapid extension of neural block within
minutes of receiving her first incremental dose 2 h later. Computed
contrast tomography revealed radio-opaque dye within both the subdural and
subarachnoid spaces, but none within the extradural space. This case report
demonstrates that subdural spread of low-dose local anaesthetics is not
always clinically distinguishable from extradural analgesia and that the
arachnoid membrane may subsequently perforate with potentially serious
consequences.
CASE REPORTS
Sudden onset of subarachnoid block after subdural catheterization: a case of arachnoid rupture?
Department of Anaesthesia and Intensive Care, Flinders Medical Centre, Bedford Park, South Australia 5042; Department of Radiology, Flinders Medical Centre, Bedford Park, South Australia 5042
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