지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Baroreflex sensitivity (BRS) is a parameter of the cardiovascular system that is reflected in changes in pulse interval (PI) and systolic blood pressure (SBP). BRS contains information about how the autonomic nervous system regulates hemodynamic homeostasis. Normally the beat-to-beat SBP measurement and the pulse interval measured from the electrocardiogram (ECG) are required to estimate the BRS. We investigated the possibility of measuring BRS in the absence of a beat-to-beat SBP measurement device. Pulse arrival time (PAT), defined as the time between the R-peak of the ECG and a single characteristic point on the pulse wave recorded from any arterial location was measured by photoplethysmography. By comparing the BRS obtained from conventional measurements with our method during controlled breathing, we confirmed again that PAT and SBP are closely correlated, with a correlation coefficient of -0.82 to -0.95. The coherence between SBP and PI at a respiration frequency of 0.07-0.12 Hz was similar to the coherence between PAT and PI. Although the ranges and units of measurement are different (ms/mmHg vs. ms/ms) for BRS measured conventionally and by our method, the correlation is very strong. Following further investigation under various conditions, BRS can be reliably estimated without the inconvenient and expensive beat-to-beat SBP measurement.
목차
등록된 정보가 없습니다.
참고문헌 (8)
참고문헌 신청
AS Zion / 2003 / Evaluation of Blood Pressure and Baroreflex Sensitivity By Radial Artery Tonometry Versus Finger Arteriolar Photoplethysmography / Am.J.Hypertens 16 : 371 ~
EJ Bowers / 2004 / Effects on baroreflex sensitivity measurements when different protocols are used to induce regular changes in beat-to-beat interbals and systolic pressure
G. Blian / 2004 / Influences of breathing pattern on respiratory sinus arrhythmia in human during exercise / Am.J.Physiol.Heart Circ.Physiol. 288 : 887 ~ 895
G. Parati / 2000 / How to measure baroreflex sensitivity:from the cardiovascular laboratory to daily life / J.Hypertens 18 : 7 ~ 19
J Camm / 1996 / Heart Rate Variability Standards of measurement,physiological interpretation,and clinical use / Eur.Heart J 17 : 354 ~ 381
EJ Bowers / 2004 / Effects on baroreflex sensitivity measurements when different protocols are used to induce regular changes in beat-to-beat interbals and systolic pressure
G. Blian / 2004 / Influences of breathing pattern on respiratory sinus arrhythmia in human during exercise / Am.J.Physiol.Heart Circ.Physiol. 288 : 887 ~ 895
G. Parati / 2000 / How to measure baroreflex sensitivity:from the cardiovascular laboratory to daily life / J.Hypertens 18 : 7 ~ 19
J Camm / 1996 / Heart Rate Variability Standards of measurement,physiological interpretation,and clinical use / Eur.Heart J 17 : 354 ~ 381
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