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Grogan EL, Morris JA, Norris PR, France DJ, Ozdas A, Stiles RA, Harris PA, Dawant BM, Speroff T. Reduced heart rate volatility: an early predictor of death in trauma patients. Annals of surgery. 2004 Sep;240(240). 547-54; discussion 554-6.
Abstract
To determine if using dense data capture to measure heart rate volatility (standard deviation) measured in 5-minute intervals predicts death.