title: A knowledge-based alarm system for monitoring cardiac operated patients--technical construction and evaluation.
abstract: A knowledge-based alarm system for intensive care monitoring was designed, built, tested on-line, and evaluated. The system is a functional prototype of a highly specific patient monitor providing alarms on hypovolemia, hyperdynamic state, left ventricular failure and hypoventilation. These intelligent alarm functions aim to maintain the quality of patient monitoring even if nurses' attention is temporarily reduced or focused elsewhere. The alarm system has an electronic access to data available in a multichannel patient monitor and the patient data management system of the intensive care unit. Median filtering, trend estimation, and rule-based reasoning are applied when processing the measured variables and estimating the patient's state.
authors.affiliation: Medical Engineering Laboratory, Technical Research Centre of Finland, Tampere.
authors.forename: T
authors.initials: T
authors.lastname: Sukuvaara
authors.forename: E M
authors.initials: EM
authors.lastname: Koski
authors.forename: A
authors.initials: A
authors.lastname: Mäkivirta
authors.forename: A
authors.initials: A
authors.lastname: Kari
mesh_terms: D001185:Artificial Intelligence; D006348:Cardiac Surgical Procedures / Q000295:instrumentation*; D004867:Equipment Design; D004868:Equipment Failure; D005387:Finland; D006801:Humans; D007362:Intensive Care Units; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D009862:Online Systems; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted