Plotted in the top and bottom panels of Fig. 7, respectively, these graphs show the expected indicators of critical slowing: growth of fluctuation variance and duration as bifurcation is approached.
Clinical data are extracted for relevant patient outcomes, severe sepsis, and indicators of critical illness.
Indicators of critical slowing down have been postulated as a means of broadly ranking complex systems, from resilient to fragile (Scheffer 2010; Veraart et al. 2011).
Just as we recognize septic shock or acute respiratory distress syndrome (ARDS) as indicators of critical organ dysfunction of the cardiopulmonary systems, delirium may be thought of as a marker of acute central nervous system dysfunction.
Pain, heart rate, gastrointestinal borborygmi and simple indicators of hypovolaemia were significant indicators of critical cases, even at the primary veterinary examination, and should be considered essential components of the initial assessment and triage of horses presenting with colic.
Theoretically, if coupled with the DO2 measurement (DO2/VCO2 ratio), the measurement of VCO2 should offer additional advantages for detecting dysoxia, as suggested by other authors who demonstrated that CO2-related variables, in combination with O2-related variables, are good indicators of critical hypoperfusion [ 21, 22].
Mutual information theory is a very general indicator of critical transition, which incorporates all correlation effects and all nonlinear behaviour as well.
Hence, an optimal target of glucose control is probably elusive, and the quality of glucose control should rather be considered a quality indicator of critical care service.
Furthermore, the readmission rate is used as a quality indicator of critical care unit performance, because this index may reflect the adequacy of treatment.
The aim of this study was to evaluate the proximal-distal gradient of mean cerebral blood flow velocity (CBF-V) in middle cerebral artery (MCA) as a possible indicator of critical vasospasm.
Proximal-distal CBF-V gradient of MCA might be a reliable indicator of critical vasospasm but further studies are warranted to define threshold values and specificity in aSAH patients.
