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Related Experiment Video

Updated: Apr 21, 2026

The Intra-Aortic Balloon Pump

The Intra-Aortic Balloon Pump

Published on: February 5, 2021

Intrathecal Pump: An Abrupt Intermittent Pump Failure.

John Riordan¹, Paul Murphy¹

¹Department of Anaesthesia, Intensive Care and Pain Medicine, St. Vincent's University Hospital, Dublin, Ireland.

Neuromodulation : Journal of the International Neuromodulation Society

|November 11, 2014

Summary

Intrathecal baclofen pump failure due to motor stall and corrosion can cause spasticity symptom recurrence. Prompt pump replacement and vigilance are crucial for managing intrathecal baclofen therapy complications.

Keywords:

Baclofen case report intrathecal drug delivery safety withdrawal

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Area of Science:

Neurology
Biomedical Engineering

Background:

Intrathecal baclofen (ITB) therapy is a common treatment for severe spasticity.
However, ITB pump systems are associated with significant risks, including device malfunction and patient morbidity.

Observation:

A patient with a Medtronic SynchroMed II intrathecal pump experienced recurrent motor stalls, leading to worsening spasticity and pain.
Device interrogation confirmed motor stall, and the patient reported intermittent alarming for three days prior to urgent review.

Findings:

Internal inspection of the explanted SynchroMed II pump revealed motor gearbox corrosion as the cause of failure.
Replacement of the intrathecal pump restored the patient's usual symptom relief, indicating successful intervention.

Implications:

This case highlights the importance of vigilance for potential complications, such as motor stall and corrosion, in ITB pump therapy.
Supplemental oral baclofen may serve as a temporary measure during pump malfunction or replacement.
Further investigation into the long-term reliability and failure modes of ITB pump systems is warranted.