A Study of Correlation between Electromyography(EMG) and the Heart Rate Variability(HRV) Test, and Their Role as Predicting Factors for Peripheral Facial Palsy Prognosis

말초성 안면신경마비 환자에서 EMG(Electromyography)와 HRV(Heart Rate Variability)의 임상적 예후인자로서의 유용성 및 상관성 연구

  • Kim, Chan-Young (Dept. of Acupuncture and Moxibustion, College of Oriental Medicine, Kyung Hee University) ;
  • Kim, Jong-In (Dept. of Acupuncture and Moxibustion, College of Oriental Medicine, Kyung Hee University) ;
  • Lee, Sang-Hoon (Dept. of Acupuncture and Moxibustion, College of Oriental Medicine, Kyung Hee University) ;
  • Park, Dong-Suk (Dept. of Acupuncture and Moxibustion, College of Oriental Medicine, Kyung Hee University) ;
  • Koh, Hyung-Kyun (Dept. of Acupuncture and Moxibustion, College of Oriental Medicine, Kyung Hee University)
  • 김찬영 (경희대학교 한의과대학 침구학교실) ;
  • 김종인 (경희대학교 한의과대학 침구학교실) ;
  • 이상훈 (경희대학교 한의과대학 침구학교실) ;
  • 박동석 (경희대학교 한의과대학 침구학교실) ;
  • 고형균 (경희대학교 한의과대학 침구학교실)
  • Published : 2008.04.20

Abstract

Objectives : This study was performed in order to investigate the effectiveness of electromyography and the Heart Rate Variability(HRV) test as prognosis factors, and to clarify correlation between Electromyography and the Heart Rate Variability test. Methods : 44 Bell's palsy patients who were graded V on the House-Brackmann scale and underwent HRV and EMG testing were retrospectively reviewed based on medical records. Results from both tests were analyzed via simple linear regression, and bivariate correlation analysis was performed to investigate the correlation between results from the two tests. The severity of the facial palsy at onset and at 2 weeks after treatment were evaluated with the H-B grade and Yanagihara grading system, and was converted into improvement scores. Results : Mean axonal loss according to electromyography showed a statistically significant correlation in predicting peripheral facial palsy improvement(p<0.01). HR, SDNN, TP, LF, HF, VLF, and LF/HF ratio on the Heart Rate Variability test showed no significant correlation in predicting peripheral facial palsy improvement. Mean axonal loss determined by electromyography, and HR, SDNN, TP, LF, HF, VLF, and LF/HF ratio recorded with the Heart Rate Variability test was analyzed with the bivariate correlation analysis method. Mean axonal loss and SDNN showed a statistically significant correlation(p<0.01) Conclusions : The Heart Rate Variability test has no statistical significance in predicting peripheral facial palsy improvement. SDNN has a statistically significant correlation with mean axonal loss as determined by electromyography.

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