In this study investigators plan to measure hemodynamic parameters from all patients admitted with CRS1 to our department. Parameters will be measured using the noninvasive bio-impedance system (NICAS). Randomly, patients will be allocated to either a study or control group. In the study group, the hemodynamic variables of the NICAS system will be available to the caring physicians. The physicians will use the data according to their discretion. The hemodynamic system is a decision making supporting system and therefore the physician may use the data according to his/her understanding. In the control group, the hemodynamic variables of the NICAS system will not be available to the caring physicians.