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. 2015 Aug 5:23:56.
doi: 10.1186/s13049-015-0137-8.

Injury pattern, outcome and characteristics of severely injured pedestrian

Georg Reith  1   2 , Rolf Lefering  3 , Arasch Wafaisade  4 , Kai O Hensel  5 , Thomas Paffrath  6 , Bertil Bouillon  7 , Christian Probst  8 ; TraumaRegister DGU
Affiliations

Injury pattern, outcome and characteristics of severely injured pedestrian

Georg Reith et al. Scand J Trauma Resusc Emerg Med. .

Abstract

Background: Pedestrians who are involved in motor vehicle collisions present with a unique trauma situation. The aim of this study was to demonstrate the specific clinical characteristics of this patient population in comparison to injured motor vehicle occupants in the medical emergency setting.

Methods: A total of 4435 pedestrian traffic collision victims admitted to hospitals participating at TraumaRegister DGU® between 2002 and 2012 (primary admission, Injury Severity Score, ISS ≥ 9; age ≥ 2 years) was assessed and compared to 16,042 severely injured motor vehicle occupants. Analyses included features such as demographic distribution, injury patterns, treatment course, subsequent complications and overall clinical outcome.

Results: Severely injured pedestrians more commonly were female (42 % vs. 34 % of motor vehicle occupants) and children below 16 years (12 % vs. 2 %) or seniors above 60 years of age (39 % vs. 17 %). Pedestrians were injured more severely (ISS: 26 vs. 25; NISS 32 vs. 30) with higher rates of head injuries (64 % vs. 47 %), pelvic injuries (32 % vs. 23 %) and lower extremity injuries (52 % vs. 43 %). Accordingly, pedestrians more commonly presented with Glasgow Coma Scale <9 (36 % vs. 28 %) and a systolic blood pressure below 90 mmHg (18 % vs. 13 %) accumulating in a worse prognosis (RISC-Score 24 % vs. 15 %) despite of a shorter on-scene treatment time (26 min vs. 38 min) and a shorter period from the collision until hospital admission (61 min vs. 78 min). Finally, pedestrians showed a higher mortality (22 % vs. 12 %).

Conclusion: Severely injured pedestrians represent a challenging patient population with unique injury patterns and high subsequent mortality. Emergency team members should be sensitized to the trigger term "pedestrian" in order to improve the initial emergency management and thus the overall clinical outcome.

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Figures

Fig. 1
Fig. 1
Comparison of injured body regions (AIS ≥ 2) in pedestrians and motor vehicle occupants injured in road traffic collisions
Fig. 2
Fig. 2
Distribution of pre-hospital interventions in pedestrians and motor vehicle occupants injured in road traffic collisions
See this image and copyright information in PMC

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