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[Motor cortex stimulation therapy in patients with thalamic pain]
M Fujii1, Y Ohmoto, T Kitahara
1Department of Neurosurgery, Yamaguchi University School of Medicine.
No Shinkei Geka. Neurological Surgery
|April 1, 1997
Summary
Motor cortex stimulation offers temporary pain relief for thalamic pain patients. However, this pain control diminishes over several months, indicating a need for further research into long-term efficacy.
Area of Science:
- Neurosurgery
- Pain Management
- Neurology
Context:
- Thalamic pain is a debilitating neuropathic pain condition.
- Electrical stimulation of the motor cortex is an emerging treatment modality.
- Understanding the long-term efficacy of motor cortex stimulation is crucial.
Purpose:
- To evaluate the effectiveness of motor cortex stimulation (MCS) for treating intractable thalamic pain.
- To assess pain relief and its duration following MCS.
- To compare different stimulation frequencies.
Summary:
- Seven patients with thalamic pain underwent epidural motor cortex stimulation.
- Initial pain relief was observed in six patients, but efficacy decreased within three months.
- No significant difference in pain relief was found between 10 Hz and 100 Hz, though higher frequency caused fatigue.
Impact:
- Motor cortex stimulation shows potential for short-term pain inhibition in thalamic pain.
- The study highlights the transient nature of pain relief, necessitating further investigation.
- Findings suggest MCS may not provide sustained pain control for this patient group.