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불면증 환자에 대한 침치료 전후 정량화 뇌파 분석: Z Scored Absolute Power and sLORETA

Analysis of Quantitative Electroencephalography (QEEG) Following Acupuncture Treatment in Patients with Insomnia: Z Scored Absolute Power and sLORETA

문수정|임정화|강형원|문광수|류영수|이고은|위영만|이성익
대한한방신경정신과학회 (The Korean Society Of Oriental Neuropsychiatry)|2016.09|동의신경정신과학회지 (The Korean Society of Oriental Neuropsychiatry)|제27권 제3호|pp. 169-184

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참고문헌

키워드

InsomniaQEEGAcupuncturesLORETA.
주제분류한의학

초록

Objectives: To investigate the neurophysiological effect of acupuncture treatment on insomnia pa-tients using quantitative electroencephalography (QEEG) and standardized Low Resolution Brain Electromagnetic Tomography method (sLORETA).Background: Insomnia is one of the commonly encountered symptoms in primary medical care. Recent studies of acupuncture for insomnia reported that the acupuncture groups showed significant improvements compared with the control groups. However, the neurophysiological mechanism of acupuncture in the treatment of insomnia has not been revealed and a few studies have measured the effect of acupuncture treatment using QEEG.Methods: Participants who had some problems in initiating or maintaining sleep, or had non-re-storative sleep for more than 3 days a week and ISI scores above 8 and below 21 were treated by acu-puncture for 2 weeks (3 times a week, total 6 times). We assessed the effectiveness of acupuncture for insomnia by the PSQI (Pittsburgh Sleep Quality Index) at baseline and at 2 weeks after the end of treat-ment (4th week). Also, we performed EEG and analysed the EEG data at baseline and at the end of treat-ment (2nd week) on the linked ears montage using the Neuroguide software program and sLORETA.Results: Thirty-two participants were enrolled and 2 participants dropped out because of personal reasons. Among the 30 participants, EEGs of 12 participants were included in the analysis of QEEG and sLORETA. Total score on the ISI and PSQI was significantly decreased after acupuncture treatment. The number of electrodes exceeding the range of 90% (±1.65) or 95% (±1.96) in the z scored absolute pow-er of beta was significantly decreased after acupuncture treatment. There was no significant change in brain activation between pre- and post-acupuncture using sLORETA. Conclusions: The deviation of absolute power compared to the normative database was significantly decreased after acupuncture treatment in the alpha and beta ranges. Therefore, we suggest that acu-puncture treatment for insomnia might be effective through the central nervous system especially in the brain. There are many limitations to drawing any conclusion. Further studies are needed in the fu-ture to overcome these limitations.

Abstract

Objectives: To investigate the neurophysiological effect of acupuncture treatment on insomnia pa-tients using quantitative electroencephalography (QEEG) and standardized Low Resolution Brain Electromagnetic Tomography method (sLORETA).Background: Insomnia is one of the commonly encountered symptoms in primary medical care. Recent studies of acupuncture for insomnia reported that the acupuncture groups showed significant improvements compared with the control groups. However, the neurophysiological mechanism of acupuncture in the treatment of insomnia has not been revealed and a few studies have measured the effect of acupuncture treatment using QEEG.Methods: Participants who had some problems in initiating or maintaining sleep, or had non-re-storative sleep for more than 3 days a week and ISI scores above 8 and below 21 were treated by acu-puncture for 2 weeks (3 times a week, total 6 times). We assessed the effectiveness of acupuncture for insomnia by the PSQI (Pittsburgh Sleep Quality Index) at baseline and at 2 weeks after the end of treat-ment (4th week). Also, we performed EEG and analysed the EEG data at baseline and at the end of treat-ment (2nd week) on the linked ears montage using the Neuroguide software program and sLORETA.Results: Thirty-two participants were enrolled and 2 participants dropped out because of personal reasons. Among the 30 participants, EEGs of 12 participants were included in the analysis of QEEG and sLORETA. Total score on the ISI and PSQI was significantly decreased after acupuncture treatment. The number of electrodes exceeding the range of 90% (±1.65) or 95% (±1.96) in the z scored absolute pow-er of beta was significantly decreased after acupuncture treatment. There was no significant change in brain activation between pre- and post-acupuncture using sLORETA. Conclusions: The deviation of absolute power compared to the normative database was significantly decreased after acupuncture treatment in the alpha and beta ranges. Therefore, we suggest that acu-puncture treatment for insomnia might be effective through the central nervous system especially in the brain. There are many limitations to drawing any conclusion. Further studies are needed in the fu-ture to overcome these limitations.

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