The use of the shock index to predict hemodynamic collapse in hypotensive sepsis patients: A cross-sectional analysis.

Moreover, an increasing trend in SI scores was shown to be more reliable at predicting outcomes in geriatric trauma patients than a single reading.[ 15 , 16 , 17 , 18 ] In a prospective study of 9860 trauma patients, the MSI, which is defined as the HR over the MAP ( MSI = HR / MAP ), predicted the mortality rate better than the SI score and traditional vital signs alone.[ 19 ] Prehospital SI scores for trauma patients correlate with hospital resource usage and mortality rates.

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