Is the shock index based classification of hypovolemic shock applicable in multiple injured patients with severe traumatic brain injury?—an analysis of the TraumaRegister DGU®

Table 3 Patients classified by SI calculated at ED admission and the presence of TBI: traditional vital signs as presented on scene and at ED admission. Continuous variables are presented as mean ± 95% confidence interval; categorical variables are presented as absolute number and percentage

	Class I		Class II		Class III		Class IV
	SI <0.6		SI ≥0.6 to <1		SI ≥1 to <1.4		SI ≥ 1.4
	Non-TBI	TBI	Non-TBI	TBI	Non-TBI	TBI	Non-TBI	TBI
Vital signs
SBP at scene (mmHg; mean ± CI)	138 ± 0.7	141 ± 1.0	125 ± 0.5	123 ± 0.8	107 ± 1.3	105 ± 1.9	96 ± 2.4	95 ± 2.9
SBP at ED (mmHg; mean ± CI)	149 ± 0.6	149 ± 0.7	126 ± 0.3	123 ± 0.5	97 ± 0.7	96 ± 0.8	71 ± 1.1	70 ± 1.1
HR at scene (beats/min; mean ± CI)	84 ± 0.4	80 ± 0.6	95 ± 0.3	92 ± 0.5	106 ± 1.0	102 ± 1.6	112 ± 2.0	108 ± 2.4
HR at ED (beats/min; mean ± CI)	75 ± 0.3	73 ± 0.4	92 ± 0.3	91 ± 0.4	110 ± 0.8	109 ± 0.9	124 ± 1.4	123 ± 1.4
GCS at scene (points; mean ± CI)	13.9 ± 0.1	9.7 ± 0.1	13.6 ± 0.1	8.8 ± 0.1	12.4 ± 0.2	7.0 ± 0.2	11.2 ± 0.3	6.4 ± 0.3
GCS at ED (points; mean ± CI)	12.5 ± 0.1	8.1 ± 0.1	11.4 ± 0.1	6.7 ± 0.1	8.5 ± 0.2	4.6 ± 0.2	6.2 ± 0.4	3.9 ± 0.2
Intubation rate at ED admission (n; %)	1271 (19)	2497 (49)	3396 (27)	4804 (63)	954 (49)	1398 (81)	528 (68)	716 (87)

ISSN: 1757-7241