Central venous pulse pressure analysis using an R-Synchronized pressure measurement system

被引:4
作者
Fujita Y. [1 ]
Hayashi D. [1 ]
Wada S. [1 ]
Yoshioka N. [1 ]
Yasukawa T. [1 ]
Pestel G. [2 ]
机构
[1] Department of Anesthesiology, ICM, Kawasaki Medical School, Kurashiki-city, Okayama 701-0192
[2] Department of Anesthesiology, Bern University Hospital (Inselspital), Bern
关键词
Blood pressure; Central venous pressure. Equipment; Computer; Monitor;
D O I
10.1007/s10877-006-9035-y
中图分类号
学科分类号
摘要
Objective. The information derived from central venous catheters is underused. We developed an EKG-R synchronization and averaging system to obtained distinct CVP waveforms and analyzed components of these. Methods. Twenty-five paralyzed surgical patients undergoing CVP monitoring under mechanical ventilation were studied. CVP and EKG signals were analyzed employing our system, the mean CVP and CVP at end-diastole during expir ation were compared, and CVP waveform components were measured using this system. Results. CVP waveforms were clearly visualized in all patients. They showed the a peak to be 1.8±0.7 mmHg, which was the highest of three peaks, and the x trough to be lower than the y trough (-1.6±0.7 mmHgand-0.9±0.5 mmHg, respectively), with a mean pulse pressure of 3.4 mmHg. The difference between the mean CVP and CV Patend-diastole during expiration was 0.58±0.81 mmHg. Conclusions. The mean CVP can be used as an index of right ventricular preload in patients under mechanical ventilation with regular sinus rhythm. Our newly developed system is useful for clinical monitoring and for education in circulatory physiology. © Springer Science+Business Media, Inc. 2006.
引用
收藏
页码:385 / 389
页数:4
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