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Effects of acupressure, manual acupuncture and Laserneedle® acupuncture on EEG bispectral index and spectral edge frequency in healthy volunteers

Published online by Cambridge University Press:  23 December 2004

G. Litscher
G. Litscher
Affiliation:
University of Graz, Department of Biomedical Engineering and Research in Anesthesia and Intensive Care, Graz, Austria
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Extract

Summary

Background and objective: The main purpose of this study was to investigate the effects of sensory (acupressure and acupuncture) and optical stimulation (Laserneedle® acupuncture) on electroencephalographic bispectral index, spectral edge frequency and a verbal sedation score.

Methods: Twenty-five healthy volunteers (mean age ± SD: 25.5 ± 4.0 yr) were investigated during the awake state. The acupuncture point Yintang and a placebo control point were stimulated. The study was performed as a randomized, controlled and partly blinded cross-over trial.

Results: Bispectral index and spectral edge frequency values both decreased significantly (P < 0.001) during acupressure on Yintang to values of 62.9 (minimum 35) ± 13.9 bispectral index and to 13.3 (minimum 2.9) ± 8.1 Hz (spectral edge frequency right) and 13.8 (minimum 2.7) ± 7.3 Hz (spectral edge frequency left), respectively. Bispectral index was also significantly (P < 0.05) affected by Laserneedle® acupuncture and acupressure on the control point but the changes were not clinically relevant, 95.4 ± 4 and 94.2 ± 4.8, respectively. All interventions significantly (Yintang: P < 0.001; control point: P < 0.012) reduced verbal sedation score.

Conclusions: The study highlights the electroencephalographic similarities of acupressure induced sedation and general anaesthesia as assessed by bispectral index and spectral edge frequency.

Keywords

ACUPRESSUREACUPUNCTUREELECTROENCEPHALOGRAPHY, bispectral index, spectral edge frequency
Type
Original Article
Information
European Journal of Anaesthesiology , Volume 21 , Issue 1 , January 2004 , pp. 13 - 19
Copyright
2004 European Society of Anaesthesiology

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References

Litscher G, Schwarz G. Noninvasive bioelectrical neuromonitoring in anaesthesia and critical care. Eur J Anaesthesiol 2001; 18: 785–788.Google Scholar
Litscher G. Editorial. The future of neuromonitoring. Internet J Neuromonitoring 2000; 1 (1): http://www.ispub.com/ostia/index.php?xmlFilePath=journals/ijnm/vol1n1/editorial2.xmlGoogle Scholar
Rampil IJ. A primer for EEG signal processing in anesthesia. Anesthesiology 1998; 89: 980–1002.Google Scholar
Fassoulaki A, Paraskeva A, Patris K, Pourgiezi T, Kostopanagiotou G. Pressure applied on the extra 1 acupuncture point reduces bispectral index values and stress in volunteers. Anesth Analg 2003; 96: 885–889.Google Scholar
Stux G, Pomeranz B. Basics of Acupuncture.Berlin, Germany: Springer, 1998.
Litscher G, Schikora D. Cerebral vascular effects of non-invasive laserneedles measured by transorbital and transtemporal Doppler sonography. Laser Med Sci 2002; 17: 289–295.Google Scholar
Litscher G, Schikora D. Near-infrared spectroscopy for objectifying cerebral effects of needle and laserneedle acupuncture. Spectroscopy 2002; 16: 335–342.Google Scholar
Sebel PS, Lang E, Rampil IJ, et al. A multicenter study of bispectral electroencephalogram analysis for monitoring anesthetic effect. Anesth Analg 1997; 84: 891–899.Google Scholar
Liu J, Singh H, White PF. Electroencephalographic bispectral index correlates with intraoperative recall and depth of propofol-induced sedation. Anesth Analg 1997; 84: 185–189.Google Scholar
Heck M, Kumle B, Boldt J, Lang J, Lehmann A, Saggau W. Electroencephalogram bispectral index predicts hemodynamic and arousal reactions during induction of anesthesia in patients undergoing cardiac surgery. J Cardiothorac Vasc Anesth 2000; 14: 693–697.Google Scholar
Chan MTV, Gin T. What does the bispectral EEG index monitor? Eur J Anaesthesiol 2000; 17: 146–148.Google Scholar
Greif R, Laciny S, Mokhtarani M, et al. Transcutaneous electrical stimulation of an auricular acupuncture point decreases anesthetic requirement. Anesthesiology 2002; 96: 306–312.Google Scholar
Tsay SL, Chen ML. Acupressure and quality of sleep in patients with end-stage renal disease – a randomized control trial. Int J Nurs Stud 2003; 40: 1–7.Google Scholar
Felhendler D, Lisander B. Pressure on acupoints decreases postoperative pain. Clin J Pain 1996; 12: 326–329.Google Scholar
Boehler M, Mitterschiffthaler G, Schlager A. Korean hand acupressure reduces postoperative nausea and vomiting after gynecological laparoscopic surgery. Anesth Analg 2002; 94: 872–875.Google Scholar
Eizember FL, Tomaszewski CA, Kerns WP. Acupressure for prevention of emesis in patients receiving activated charcoal. J Toxicol-Clin Toxicol 2002; 40: 775–780.Google Scholar
Cho ZH, Wong EK, Fallon JH. Neuro-Acupuncture.Los Angeles, USA: Q-Puncture, 2001.
Litscher G, Cho ZH, eds. Computer Controlled Acupuncture®.Berlin, Germany: Pabst Science Publishers, 2000.
Litscher G. High-Tech Akupunktur®.Berlin, Germany: Pabst Science Publishers, 2001.
Hui KKS, Liu J, Makris N, et al. Acupuncture modulates the limbic system and subcortical gray structures of the human brain: evidence from fMRI studies in normal subjects. Hum Brain Mapp 2000; 9: 13–25.Google Scholar
Bruhn J, Bouillon TW, Shafer SL. Electromyographic activity falsely elevates the bispectral index. Anesthesiology 2000; 92: 1485–1487.Google Scholar
Riess ML, Graefe UA, Goeters C, Van Aken H, Bone HG. Sedation assessment in critically ill patients with bispectral index. Eur J Anaesthesiol 2002; 19: 18–22.Google Scholar
Drummond JC. Monitoring depth of anesthesia. With emphasis on the application of the bispectral index and the middle latency auditory evoked response to the prevention of recall. Anesthesiology 2000; 93: 876–882.Google Scholar
Nieuwenhuijs D, Coleman EL, Douglas NJ, Drummond GB, Dahan A. Bispectral index values and spectral edge frequency at different stages of physiologic sleep. Anesth Analg 2002; 94: 125–129.Google Scholar
Kalkman CJ, Drummond JC. Monitors of depth of anesthesia, quo vadis? Anesthesiology 2002; 96: 784–787.Google Scholar
Bruhn J, Bouillon TW, Radulescu L, Hoeft A, Bertaccini E, Shafer SL. Correlation of approximate entropy, bispectral index, and spectral edge frequency 95 (SEF95) with clinical signs of ‘anesthetic depth’ during coadministration of propofol and remifentanil. Anesthesiology 2003; 98: 621–627.Google Scholar