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Spinal cord responses to peripheral nerve stimulation in man
Archives of Physical Medicine and Rehabilitation
|January 1, 1980
Summary
Summated spinal evoked potentials (SSEPs) were measured in healthy individuals. This study analyzed SSEP characteristics, including latency and conduction velocity, to assess nerve pathway integrity.
Area of Science:
- Neuroscience
- Physiology
- Biomedical Engineering
Background:
- Spinal evoked potentials provide insights into neural pathway function.
- Assessing the integrity of afferent pathways is crucial for neurological diagnostics.
Purpose of the Study:
- To record and analyze summated spinal evoked responses using surface electrodes.
- To evaluate the latency, conduction velocity, and symmetry of these responses.
Main Methods:
- Surface electrodes recorded spinal evoked responses from 11 normal subjects.
- Peroneal nerve stimulation at the popliteal fossa was used.
- Responses were analyzed for latency, duration, amplitude, waveform, and conduction velocity.
Main Results:
- Mean latency at L4-L2 was 9.09 ± 0.75 ms; conduction velocity was 67.8 ± 4.70 m/s.
- Mean latency at T12-T10 was 9.83 ± 0.74 ms; conduction velocity was 70.64 ± 4.95 m/s.
- Bilateral recordings demonstrated response symmetry.
Conclusions:
- The study established normative data for spinal evoked potentials via peroneal nerve stimulation.
- Findings support the use of SSEPs for evaluating the integrity of spinal neural pathways.