Every year in the Swiss Alps, there are approximately 3000 accidents.
Over 90% of victims (1990/1991: n = 3500-3800) are rescued by helicopt
er. In approximately 20% of accidents, a helicopter winch mission is n
ecessary (1990/1991: n = 600-700 rescued persons). Swiss Air Rescue (R
EGA) is responsible for two thirds of all rescues in the off-road area
s (1990/1991: n = 1958/2321 persons). All REGA rescue missions are reg
istered according to medical (National advisory committee for aeronaut
ics (NACA)) and topographical index. Over two thirds of all winch oper
ations take place in accessible, and one third in difficult accessible
sites of accidents. Of these, 2% are extremely difficult rescues, e.g
. upon the north faces of the Eiger or the Matterhorn. Over 75% of all
winch-rescued persons were rated NACA III-VII, where medical assistan
ce is considered to be necessary at the site of accident. The assignme
nt of experienced emergency doctors, trained in alpine techniques, imp
roves the quality of preclinical treatment even in difficult sites, al
though clinical demands are not always completely practicable in the f
ield and the possibilities of treatment are often limited by adverse c
limate and/or topography. An efficient medical-assisted helicopter res
cue service has an important impact on the survival chances following
alpine sport accidents.