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Journal of the Korean Academy of Rehabilitation Medicine 2000;24(5):939-945.
Changes of Nerve Conduction at High Temperature in Patients with Carpal Tunnel Syndrome.
Cho, Seong Chan , Ha, Sang Bae
Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine.
수근관 증후군 환자에서 체온 상승에 따른 신경 전도의 변화
조성찬, 하상배
울산대학교 의과대학 서울중앙병원 재활의학과

High body temperature may alter nerve conduction in demyelinated neurons. This study was designed to investigate the changes in nerve conduction parameters in response to the heat applied over the wrist in the patients with carpal tunnel syndrome (CTS).

16 hands of CTS patients and 16 hands of normal subjects were involved in this study. Motor and sensory nerve responses were measured at 32oC and 42oC in all the subjects. Infrared was applied on the wrist to warm the skin to 42oC. Changes of relative amplitude, duration, and latency of evoked potentials in median sensory and motor nerves of CTS patients were compared with those of the normal subjects. Correlation between the latency measured at 32oC and changes of amplitude of motor and sensory nerve responses after warming to 42oC was evaluated in CTS group.

Relative reduction in duration of motor responses in CTS group was significantly greater than in normal group. Relative reduction of motor and sensory amplitude, and sensory latency were greater in CTS. There was no significant relation between motor and sensory latency at 32oC and relative amplitude reduction in motor and sensory responses at 42oC.

Increase in temperature may increase the number of blocked nerve fibers in patients with CTS than in normal subjects.

Key Words: Carpal tunnel syndrome, Nerve conduction, Temperature


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