Bruijns et al looked at vital signs and their combined values for predicting mortality in a trauma patient. The authors are from the University of Cape Town, University of Manchester, University of Sheffield and multiple hospitals in England.
Patient selection: trauma patient on admission, age > 16 years
Exclusions: significant head and spine injuries; prehospital intubation or cardiopulmonary resuscitation
Outcome: 48-hour mortality
Parameters:
(1) heart rate in beats per minute (HR)
(2) systolic blood pressure in mm Hg (SBP)
(3) age in years
(4) respiratory rate in breaths per minute
Term
Abbreviation
Derivation
shock index
SI
(heart rate) / (SBP)
age shock index
SIA
(shock index) * (age)
blood pressure age index
BPAI
(SBP) / (age)
pulse mass index
PMI
(heart rate) / (max HR)
minpulse
MP
(max HR) - (HR)
maximum heart rate =
= 220 - (age)
Term
87-90% Specificity
94-95% Specificity
SIA
>= 48
>= 55
BPAI
<= 1.7
<= 1.5
PMI
>= 60%
>= 70%
shock index
>= 0.8
>= 0.9
MP
<= 54
<= 44
heart rate
>= 104
>= 112
systolic blood pressure
<= 110
<= 101
age
>= 81
>= 86
respiratory rate
>= 24
>= 27
To read more or access our algorithms and calculators, please log in or register.
