2019 Volume 39 Issue 3 Pages 313-320
【Introduction】Outlines regarding guidelines of in-hospital medical response to mass casualty incident(MCI)in United Kingdom(UK)and recent experience of MCI in France are introduced. 【UK guidelines】MIMMS(Major Incident Medical Management and Support)guideline provides key conceptions concerning the priority at the time of surge capacity of operation room(OR). 【In-hospital responses to the terrorist attacks in Paris in November 2015】 Pitié Salpêtrière University Hospital performed simultaneous surgical operation in up to 10 in 13 ORs in 23 traumatized patients. 【Conclusion】 Not only the reception sections but also the OR response plan to MCI can mitigate confusion in an actual case.