The Japanese Journal of Clinical Dialysis Vol.22 No.5(7)

Theme Current Topics in Monitoring Technologies for Dialysis Therapy
Title Clinical evaluation of continuous monitoring system for arteriovenous-pressure difference
Publish Date 2006/05
Author Takeshi Tanaka Department of Clinical Engineering, Sakuramachi Clinic Togitsu
Author Yusuke Ejima Department of Clinical Engineering, Sakuramachi Clinic
Author Tomoyuki Takagi Hemodialysis Center, Sakuramachi Clinic
Author Junichiro Hashiguchi Hemodialysis Center, Sakuramachi Clinic Togitsu
Author Satoshi Funakoshi Hemodialysis Center, Sakuramachi Clinic
[ Summary ] A newly developed continuous monitoring system, measuring arteriovenous-pressure differences (AVPD) was evaluated as to whether it is clinically useful as a non-invasive monitoring device for hemodynamics in patients receiving hemodialysis (HD) treatment. We compared AVPD to CRIT-LINE, which is also a non-invasive optical technique for confinuously measuring the hematocrit of HD patients. With AVPD, there was no correlation between water-removal rates or average systolic blood pressure (SBP). On the other hand, a strong negative correlation was observed between CRIT-LINE and water-removal rates. However, the results of the relationship between CRIT-LINE and SBP were not clear, as CRIT-LINE moderately correlated with SBP when HD patients received meals during HD sessions, but showed no correlation when they did not receive meals during HD.
In conclusion, this system of measuring continuous AVPD is not useful for monitoring hemodynamics in patients receiving HD. Even with CRIT-LINE, various factors, including meal intake, may affect results and interpretations of data.
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