TY - GEN
T1 - Prediction of arterial pressure during hemodialysis using electrical impedance
AU - Rosa, E. R.
AU - Melo, M. F.Vidal
AU - Neto, A. Giannella
AU - Panerai, R. B.
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992
Y1 - 1992
N2 - Eight hemodialysis were monitored with the objective of detecting the onset of arterial hypotension. Electrical impedance measurements were obtained from the lower limbs together with body weight changes and arterial pressure at regular time intervals. Heart rate, stroke volume, mean blood flow, peripheral vascular resistance, the peak of the first derivative of the impedance signal and ' O ' wave amplitude were extracted from dZ/dt Clinical hypotension or drops in mean arterial blood pressure of more than 30 mmHg were observed in 6 HD. A multivariate regression model using body weight changes and peak dZ/dt suggests that it is possible to predict changes in arterial pressure with 6% error with an anticipation of up to 30 minutes in the phase of hemodialysis. The correlation obtained between basal impedance and body weight (r = 0.92, p< 0.001) indicates that the former might be used as a substitute for direct measurements of body weight.
AB - Eight hemodialysis were monitored with the objective of detecting the onset of arterial hypotension. Electrical impedance measurements were obtained from the lower limbs together with body weight changes and arterial pressure at regular time intervals. Heart rate, stroke volume, mean blood flow, peripheral vascular resistance, the peak of the first derivative of the impedance signal and ' O ' wave amplitude were extracted from dZ/dt Clinical hypotension or drops in mean arterial blood pressure of more than 30 mmHg were observed in 6 HD. A multivariate regression model using body weight changes and peak dZ/dt suggests that it is possible to predict changes in arterial pressure with 6% error with an anticipation of up to 30 minutes in the phase of hemodialysis. The correlation obtained between basal impedance and body weight (r = 0.92, p< 0.001) indicates that the former might be used as a substitute for direct measurements of body weight.
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U2 - 10.1109/IEMBS.1992.5761204
DO - 10.1109/IEMBS.1992.5761204
M3 - Conference contribution
AN - SCOPUS:85066925232
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 756
EP - 757
BT - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
A2 - Plonsey, Robert
A2 - Laxminarayan, Swamy
A2 - Morucci, Jean Pierre
A2 - Coatrieux, Jean Louis
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Y2 - 29 October 1992 through 1 November 1992
ER -