대한의용생체공학회:의공학회지 (Journal of Biomedical Engineering Research)

  • 제18권3호
  • /
  • Pages.285-290
  • /
  • 1997
  • /
  • 1229-0807(pISSN)
  • /
  • 2288-9396(eISSN)
대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
권호 표지

정상인과 편마비 환자의 심박변동신호의 특성에 관한 연구

A Study on the Characteristics of Heart Rate Variabilities In Nornal Subjects and Hemiplegic patients

  • 정기삼 (연세대학교 공과대학 전기공학과) ;
  • 신건수 (연세대학교 의료기기 기술연구소) ;
  • 이정환 (연세대학교 공과대학 전기공학과) ;
  • 안준 (연세대학교 의과대학 재활의학과) ;
  • 전중선 (연세대학교 의과대학 재활의학과) ;
  • 김준수 (삼성서울병원 심혈관센터) ;
  • 이명호 (연세대학교 공과대학 전기공학과)
  • Jeong, Kee-Sam (Dept. of Electrical Eng., College of Engineering, Yonsei University) ;
  • Shin, Kun-Soo (The Institute of Medical Instruments Technology, Yonsei University) ;
  • Lee, Jeong-Whan (Dept. of Electrical Eng., College of Engineering, Yonsei University) ;
  • Ahn, Juhn (Dept. of Rehabilitation Med., College of Medicine, Yonsei University) ;
  • Chon, Joong-Son (Dept. of Rehabilitation Med., College of Medicine, Yonsei University) ;
  • Kim, Jun-Soo (Cardiovascular Center, Samsung Medical Center) ;
  • Lee, Myoung-Ho (Dept. of Electrical Eng., College of Engineering, Yonsei University)
  • 발행 : 1997.09.01
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초록

In this paper, the power spectral analysis and the fractal analysis of heart rate variability(HRV) were performed to evaluate the effects of brain lesion on cardiovascular system and autonomic function for 24 normal subjects and 22 hemiplegic patients. The ECG and respiration signals were recorded at tilt angles of $0^{\circ}$ and $70^{\circ}$ for 5 and 6 minutes successively under the condition of frequency controlled respiration (0.25Hz). For normal subjects, HR, LF component, HF component and fractral dimension of HRV were distinctly changed after orthostatic stress, whereas, for hemiplegic patients, those were little changed. Complexity and variability of heart rate of patients were smaller than those of normal subjects. Sympathetic tone of patients was higher than that in normal subjects. All of these results support that autonomic disorder and cardiovascular disturbance accompanied by brain lesion could be assessed by the power spectral analysis and fractal analysis of HRV.

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