The role of an anaesthetic incident reporting programme in improving a
naesthetic safety was studied. The programme had been running for 4 to
5 years in three large hospitals in Hong Kong and more than 1000 inci
dents have been reported. The number of reports being made and freguen
cy of the various categories of incident reported, did not alter durin
g the study period. Sixty nine percent of incidents were considered to
be preventable. Human error contributed to 76% of incidents and viola
tions of standard practice to 30% of incidents. The programme was effe
ctive in its ability to detect latent errors in the anaesthesia system
and then these were corrected, incidents did not recur. The frequency
with which various contributing factors were cited did not decrease w
ith time. With the exception of problems dealt with by specific protoc
ol development, the study found no evidence that an increasing awarene
ss of the problem of human error was effective in reducing this kind o
f problem.