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Lateral pectoral nerve conduction
Ergun Nacarküçük1, Cumhur Ertekin
1Department of Pediatric Neurology, Medical School Hospital, Uludag University, Bursa, Turkey. drnacarkucuk@superonline.com
The International Journal of Neuroscience
|June 16, 2004
Summary
This study measured lateral pectoral nerve (LPN) motor conduction time and velocity in healthy individuals and neuropathy patients. LPN nerve conduction studies proved sensitive for diagnosing plexopathy and localizing polyneuropathy.
Area of Science:
- Neurology
- Neurophysiology
Background:
- The lateral pectoral nerve (LPN) is crucial for shoulder abduction.
- Assessing LPN nerve conduction can aid in diagnosing peripheral nerve disorders.
Purpose of the Study:
- To measure motor conduction time (MCT) and velocity of the LPN in normal subjects.
- To evaluate LPN nerve conduction parameters in patients with neuropathy.
- To compare the diagnostic utility of LPN studies with other established nerve conduction tests.
Main Methods:
- Erb's point stimulation and axillary stimulation were used.
- Needle recording electrodes were employed for signal acquisition.
- Motor conduction time and velocity were calculated for the LPN.
Main Results:
- In normal subjects, the average LPN MCT was 3.9 ms and average motor conduction velocity was 70.6 m/s.
- Prolonged LPN MCT was observed in 50% of unilateral plexopathy patients and 75% of polyneuropathy patients.
- LPN MCT sensitivity was comparable to biceps brachii MCT in unilateral plexopathy.
Conclusions:
- LPN nerve conduction studies are valuable for diagnosing unilateral plexopathy.
- LPN motor conduction velocity can help localize nerve involvement in polyneuropathies.
- These findings support the clinical utility of LPN assessment in neurological evaluations.