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A novel cause of intrathecal baclofen overdosage: lessons to be learnt
Catherine Dalton1, Elizabeth Keenan, Val Stevenson
1National Hospital for Neurology and Neurosurgery, London, UK. Catherine.dalton@uclh.nhs.uk
Case Presentation:
A serious intrathecal baclofen overdose occurred in a 45-year-old woman with primary progressive multiple sclerosis following a catheter dye study with concomitant change in baclofen concentration. The pump and catheter were emptied of baclofen 2000 microg/mL, refilled and primed with baclofen 1000 microg/mL. No correction was made for the ;dead space' between the reservoir and catheter access port, which contained baclofen 2000 microg/mL. Failure of the priming bolus to account for the residual baclofen concentration within the dead space resulted in a serious overdose.Action: Amendments are being made to both our local and the Medtronic protocols.
Conclusion:
We hope that by reporting this incident the risk of this potentially fatal error re-occurring is minimized.
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