갑상선기능항진증에 합병된 저칼륨혈증 주기성 마비의 근전도 소견
A Case of Thyrotoxic Hypokalemic Periodic Paralysis with Typical Electromyographic Findings during Paralytic Attack and after Recovery
이베나, 김재민, 성진영, 박정원,
소속 상세정보
이베나 ( Lee Be-Na )
가톨릭대학교 의과대학 재활의학교실
김재민 ( Kim Jae-Min )
가톨릭대학교 의과대학 재활의학교실
성진영 ( Sung Jin-Young )
가톨릭대학교 의과대학 재활의학교실
박정원 ( Park Jung-Won )
가톨릭대학교 의과대학 재활의학교실
KMID : 0860920040060010071
Abstract
Thyrotoxic periodic paralysis is an uncommon illness characterized by recurrent episodes of flaccid paralysis of skeletal muscles, usually accompanied by hypokalemia. The underlying pathophysiology remains largely unexplained and controversial. Up to now there are many clinical studies of thyrotoxic periodix paralysis, but a few electrophysiologic studies were reported in Korea, especially during paralytic attack. We encountered a patient with thyrotoxic periodic paralysis and carried out EMG study during paralytic attack and after a remission and got the Following results. 1) Sensory nerve conduction study showed normal SNAPs from all tested nerves. 2) Motor nerve conduction study showed normal oneset latencies and conduction velocities but reduceed amplitudes of CMAPs. 3) Needle EMG showed considerably decreased insertional activities, but no abnormal spontaneous activities at rest and on volition, low-amplotude, short-duration and polyphasic MUAPs and reduced interferential patterns. 4) After a remission all abnormal Findings returned to normal values on nerve conduction and needle EMG studies.
키워드
Thorotoxicosis;Periodic paralysis;Hypokalemia;Electromyography
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