Although electronic medical records and a central database have made accura
te and consistent patient medical information more readily available than w
ith the traditional patient chart, there are many locations in healthcare f
acilities where terminals for accessing patient data are nor. available. As
patient care becomes decentralized and more patients require anesthesia ou
tside of the operating suites, routing a network-based system to all these
locations can be expensive and time consuming. We designed a system whereby
essential patient data of interest to anesthesiologists is stored on an el
ectronic memory device the size of a watch battery attached to the patient'
s wristband. Accessing and editing the data is done via a handheld computer
. This system provides secure patient data storage and management at the "p
oint of care." At the conclusion of the patient's anesthesia-related care,
the data is downloaded to a relational database for use in outcome analysis
, billing, and quality assurance. After collecting preoperative evaluations
, intraoperative data, and postoperative data on 560 patients anesthetized
for surgery or other procedures. we find this system to be a reliable, lon
cost, medical information management system, with possible application to o
ther medical specialties.