-
Grogan EL, Norris PR, Speroff T, Ozdas A, France DJ, Harris PA, Jenkins JM, Stiles R, Dittus RS, Morris JA. Volatility: a new vital sign identified using a novel bedside monitoring strategy. The Journal of trauma. 2005 Jan;58(58). 7-12; discussion 12-4.
Abstract
SIMON (Signal Interpretation and Monitoring) monitors and archives continuous physiologic data in the ICU (HR, BP, CPP, ICP, CI, EDVI, SVO2, SPO2, SVRI, PAP, and CVP). We hypothesized: heart rate (HR) volatility predicts outcome better than measures of central tendency (mean and median).