McClelland, GrahamPennington, ElspethByers, SoniaRussell, WandaLecky, Fiona2019-06-262019-06-262015-08McClelland, G. et al, 2015. The challenges of conducting prehospital research: successes and lessons learnt from the Head Injury Transportation Straight to Neurosurgery (HITS-NS) trial. Emergency medicine journal : EMJ, 32 (8), 663-4.1472-02131472-020510.1136/emermed-2014-203870http://hdl.handle.net/20.500.12417/57Head Injury Transportation Straight to Neurosurgery was a cluster randomised trial studying suspected severe head injury treatment pathways conducted in the North East Ambulance Service NHS Foundation Trust and North West Ambulance Service NHS Trust between January 2012 and March 2013. This was the world's first large scale trial of any trauma bypass and was conducted as a feasibility study. This short report will describe some of the lessons learnt during this ground breaking and complex trial. https://emj.bmj.com/content/32/8/663.long This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ http://dx.doi.org/10.1136/emermed-2014-203870enEmergency Medical ServicesCraniocerebral TraumaRandomized Controlled Trials as TopicResearch DesignJournal Article/Review