The Journal of Thoracic and Cardiovascular Surgery, Vol 74, 890-899, Copyright © 1977 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Evaluation of computer-aided monitoring of patients after heart surgery
LH Edmunds Jr, H Mac Vaugh 3d, J Stevens, AB Wechsler and GM Worthington
The medical and economic benefits of a computer-aided monitoring system
were evaluated in a prospective, randomized study of 810 patients after
open-heart surgery. The design of the study separated benefits of
systematized postoperative care from benefits unique to the computer system
and established measurable criteria by which computer-aided monitoring
systems could be objectively evaluated. Criteria for comparison included
the rapidity, safety, and smoothness of convalescence and time spent for
various nursing activities. The study showed that the computer-aided
monitoring system did not provide discernible medical benefits nor
favorably affect nursing activities. Downtime of the system averaged 1 day
per week. Reliability and accuracy of the system were inadequate and the
benefit/cost ratio was low. Future development of computer-aided monitoring
systems for open cardiac surgery should stress reliability, accuracy and
relevance of the monitored measurements.