Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Analysis on the Depth of Anesthesia by Using EEG and ECG Signals

  • Ye, Soo-Young (Department of Radiological Science, Catholic University of Pusan) ;
  • Choi, Seok-Yoon (Department of Radiological Science, Catholic University of Pusan) ;
  • Kim, Dong-Hyun (Department of Radiological Science, Catholic University of Pusan) ;
  • Song, Seong-Hwan (Division of Energy and Bio-engineering, Dongseo University)
  • Received : 2013.07.18
  • Accepted : 2013.09.02
  • Published : 2013.12.25
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Abstract

Anesthesia, which started being used to remove pain during surgery, has become itself one of the major concerns to be considered during surgery. While actual anesthesia is being performed, patients tend to have unpleasant experiences, due to wakening that accompanies pain, or wakening that does not accompany pain. Since this awakening during anesthesia is a most unpleasant experience in a patient's life, evaluating the depth of anesthesia during surgery is essential for patients to avoid this experience. Although there has been much effort on the understanding and measurement of the depth of anesthesia, while various researches were performed on the need of anesthesia, the development of an indicator that could objectively evaluate the depth of anesthesia, other than by using the patient's vital signs, is still inadequate. Therefore, this study was to develop an objective indicator by using EEG and ECG, which are essentially measured during the surgery, to evaluate the depth of anesthesia. The experiment was performed by taking patients who require a relatively short operation time, and general inhalation anesthetics among surgical patients in obstetrics and gynecology as the subjects of experiment, to measure the EEG and ECG signals of patients under anesthetics. The result showed that SEF using EEG and LF, HF using ECG signal and correlation dimension analysis parameter were valuable parameters that could measure the depth of anesthesia, by the stage of anesthesia.

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