Pre-hospital intubation by anaesthesiologists in patients with severe trauma: an audit of a Norwegian helicopter emergency medical service

Table 4 Annual distribution of patients with severe trauma

Year	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	Sum
Number of patients with severe trauma*	80	105	112	83	78	83	114	109	126	134	122	109	1255
Arrived at hospital alive	73	93	103	74	74	79	101	96	117	128	112	99	1149
Fraction of patients dead before hospital arrival (%)	9	11	8	11	5	5	11	12	7	5	8	9	9
Attempted pre-hospital ETI	20	29	19	19	13	18	21	17	29	14	27	14	240
ETI in the emergency department	0	3	8	4	1	6	5	5	5	7	3	0	47
Fraction of ED ETI among total ETI (%)	0	9.4	29.6	17.4	7.1	25.0	19.2	22.7	14.7	33.3	10.0	0	16.4
Capnography used in pre-hospital ETI	0	0	0	0	0	1	0	1	3	4	14	11	34
Fraction of patients with pre-hospital ETI for which capnography was used (%)	0	0	0	0	0	6	0	6	10	29	52	79	14

*Defined as National Committee on Aeronautics severity of injury or illness index (NACA) score 4-7.
ETI: Endotracheal intubation.
ED: Emergency department.

ISSN: 1757-7241