- Poster presentation
- Open Access
Cardiac cycle efficiency as prognostic index in ICUs
© Donati et al. 2011
- Published: 1 March 2011
- Cardiac Output
- Logistic Regression Analysis
- Cardiac Index
- Diagnostic Category
Cardiac cycle efficiency (CCE) can be calculated by the pressure recording analytical method (PRAM), a mini-invasive pulse-contour system that can provide beat-to-beat monitoring of cardiac output . CCE is a new parameter that ranges from -1 to +1, with -1 being the worse and +1 the best possible performance of the cardiac cycle in terms of hemodynamic balance maintenance . These characteristics make CCE a possible prognostic index, especially in critical patients who often present hemodynamic instability.
We recruited 157 consecutive patients admitted to the ICU undergoing hemodynamic monitoring, and the following parameters were registered in the first 24 hours from the admission: hemodynamic parameters (cardiac index, dp/dtmax and CCE) detected from the MostCare monitor (based on the PRAM algorithm), PaO2/FiO2 ratio, arterial lactates, SAPS II. We also divided the patients into seven diagnostic categories and take note of the outcome.
Results of logistic regression analysis
We demonstrate that CCE registered in the first 24 hours from admission is not a good prognostic index. The differences of CCE value between patients with good and negative outcome was not statistically significant. This result may suggest that a low CCE value in 24 hours from admission does not necessarily mean a bad outcome but, on the contrary, can be successfully improved by a therapeutic approach. It will be interesting to study whether there are some correspondences between CCE variations and modifications of the clinical conditions of the patients that may predict a positive or negative outcome.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.