This paper reports on research for decision support for anaesthesiolog
ists at the University Hospital in Groningen, the Netherlands. Based o
n CAROLA, an existing automated operation documentation system, we des
igned a support environment that will assist in real-time diagnosis. T
he core of the work presented here consists of a knowledge base (conta
ining anaesthesiological knowledge) and a diagnosis system. The knowle
dge base is specified in the logic-based formal specification language
AFSL. This leads to a powerful and precise treatment of knowledge str
ucturing and data abstraction. (C) 1997 Elsevier Science B.V.