Cognitive-evoked Potential Response in Low Back Pain Patients.

, Lee, Kyeong Woo; , Sun, Shih Wei; , Kim, Sang Beom; , Yoon, Ki Sung; , Kwak, Hyun

Original Article

Journal of the Korean Academy of Rehabilitation Medicine 2005;29(2):209-212.

Lee, Kyeong Woo , Sun, Shih Wei , Kim, Sang Beom , Yoon, Ki Sung , Kwak, Hyun

Department of Physical Medicine and Rehabilitation, Dong-A University College of Medicine, Korea. sewe111@hanmail.net

요통환자에서 인지유발전위의 의미

이경우, 손세위, 김상범, 윤기성, 곽현

동아대학교 의과대학 재활의학교실

Abstract

Objective
Cognitive-evoked potentials (P300) reflects a variety of cognitive functions and cognitive-behavioral strategies have been applied to a number of different chronic pain problems, including low back pain (LBP), headache, fibromyalgia, osteoarthritis, etc. Several studies showed delayed onset latency and increased amplitude of P300 in chronic LBP patients. The purpose of this study was to evaluate the cognitive processing differences in patients with chronic and acute LBP, and to examine the effectiveness of P300 to detect the mind of compensation in pending case.
Method
P300 were recorded in 32 patients with LBP. We divided patients into two groups according to the duration of disease onset and the state of legal proceedings.
Results
P300 latency and amplitude was significantly increased in chronic LBP as compared with acute LBP (p＜0.05). The state of legal proceedings showed no significant difference in P300 latency and amplitude.
Conclusion
The results we gained suggested that the neurocognitive networks related to decision making and memory processing seemed to work differently in chronic and acute pain. Mind of compensation did not seem to be related with P300 in LBP patients. (J Korean Acad Rehab Med 2005; 29: 209-212)

Key Words: Cognitive-related potential, Low back pain