Sudden onset of subarachnoid block after subdural catheterization: a case of arachnoid rupture?
case_report · Level V
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- Record sourced from PubMed, PMID 8777121.
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Abstract
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.
Medical subject headings
- Analgesia, Epidural
- Analgesia, Obstetrical
- Arachnoid
- Catheterization
- Nerve Block