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Journal of the Korean Academy of Rehabilitation Medicine 1994;18(3):25.
Phrenic Nerve Conduction Study Using Magnetic Coil
Kweon Yeong Kim, M.D. , Byung Gwon Park, M.D.
Department of Rehabilitation Medicine, Chosun University College of Medicine
자기자극을 이용한 횡격막 신경의 전도검사
김권영, 박병권
조선대학교 의과대학 재활의학교실

Phrenic nerve conduction studies are clinically helpful in the evaluation of the disease of peripheral nerves and therapeutic applications.

The purpose of this study is to determine the normal value of the phrenic nerve conduction using magnetic stimulation in 30 healthy Korean male adults, in addition compared to one from the electrical stimulation.

In the present study, phrenic nerve function was evaluated by transcutaneous magnetic stimulation at the posterior border of the sternocleidomastoid muscle on the thyroid cartilage level and recording the diaphragmatic action potential with surface electrode placed at the ipsilateral eighth-ninth intercostal space of 8-10th rib.

The results were as follows:

1) The mean latency was 7.00±0.72 msec at right, 7.00±0.76 msec at left, there was no significant differences between sides.

2) The mean amplitude was 647.3±262.3 uV at right, 663.6±278.8 uV at left, there was no significant differences between sides.

3) There was no significant differences in the latency and amplitude of compound motor action potential of phrenic nerve between magnetic and electrical stimulation.

4) There was no significant differences between the latency and the age, and sitting height and the chest circumference.

In conclusion, the use of magnetic stimulation may be used as the method of phrenic nerve conduction study like the electrical stimulation.

Key Words: Phrenic nerve, Magnetic stimulation, Electrical stimulation


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