A Case of Hypokalemic Paralysis Provoked after Trigger Point Injection with Dexamethasone and Lidocaine

J Korean Neurol Assoc > Volume 25(2); 2007 > Article

Journal of the Korean Neurological Association 2007;25(2): 225-228.

덱사메사손과 리도케인을 이용한 유발점 주사요법후 발생한 저칼륨성 마비 환자 1예

김동건, 김옥준

포천중문의과대학교 의과대학 신경과학교실

A Case of Hypokalemic Paralysis Provoked after Trigger Point Injection with Dexamethasone and Lidocaine

Dong-gun Kim

Department of Neurology, College of Medicine, Pochon CHA University, Gyunggi-do, Korea

Abstract

Acute hypokalemic paralysis is characterized by acute systemic weakness and low serum potassium. Trigger point injection (TPI) is frequently performed for myofacial pain relief with rare complications. 34-year-old male was admitted with quadriparesis after TPI with dexamethasone and lidocaine before 24 hours. Hypokalemia was found with compatible findings on nerve conduction studies and electromyography. Hypokalemia and weakness were fully recovered after potassium replacement. Steroid and lidocaine can provoke iatrogenic hypokalemic paralysis, therefore, TPI with these medications should be cautiously performed.KeyWords:Trigger point injection, Steroid, Lidocaine, Hypokalemic paralysis