Assessment of Postresuscitation Volume Status by Bioimpedance Analysis in Patients with Sepsis in the Intensive Care Unit: A Pilot Observational Study

Figure 2

Change in vector length over time. Change in mean vector length over time is shown for 5 randomly selected patients. The green vertical line is shown at day 7 and demarcates the initial 7-day protocol (followed for the first 16 patients) from the subsequent 30-day protocol. Persistently small vector lengths (representing hypervolemia) are seen for the first 7 days which led us to increasing the number of measurements and length of follow-up for this feasibility study. There is significant variability within each patient’s BIA measures, suggesting more frequent measures are required to more accurately assess volume status over time.