Reliable clinical monitoring using wireless sensor networks: Experiences in a step-down hospital unit

Octav Chipara, Chenyang Lu, Thomas C. Bailey, Gruia Catalin Roman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

186 Scopus citations

Abstract

This paper presents the design, deployment, and empirical study of a wireless clinical monitoring system that collects pulse and oxygen saturation readings from patients. The primary contribution of this paper is an in-depth clinical trial that assesses the feasibility of wireless sensor networks for patient monitoring in general hospital units. We present a detailed analysis of the system reliability from a long term hospital deployment over seven months involving 41 patients in a step-down cardiology unit. The network achieved high reliability (median 99.68%, range 95.21% - 100%). The overall reliability of the system was dominated by sensing reliability of the pulse oximeters (median 80.85%, range 0.46% - 97.69%). Sensing failures usually occurred in short bursts, although longer periods were also present due to sensor disconnections. We show that the sensing reliability could be significantly improved through oversampling and by implementing a disconnection alarm system that incurs minimal intervention cost. A retrospective data analysis indicated that the system provided sufficient temporal resolution to support the detection of clinical deterioration in three patients who suffered from significant clinical events including transfer to Intensive Care Units. These results indicate the feasibility and promise of using wireless sensor networks for continuous patient monitoring and clinical deterioration detection in general hospital units.

Original languageEnglish
Title of host publicationSenSys 2010 - Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Pages155-168
Number of pages14
DOIs
StatePublished - Dec 1 2010
Event8th ACM International Conference on Embedded Networked Sensor Systems, SenSys 2010 - Zurich, Switzerland
Duration: Nov 3 2010Nov 5 2010

Publication series

NameSenSys 2010 - Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems

Conference

Conference8th ACM International Conference on Embedded Networked Sensor Systems, SenSys 2010
Country/TerritorySwitzerland
CityZurich
Period11/3/1011/5/10

Keywords

  • Patient monitoring
  • Reliability
  • Wireless sensor networks

Fingerprint

Dive into the research topics of 'Reliable clinical monitoring using wireless sensor networks: Experiences in a step-down hospital unit'. Together they form a unique fingerprint.

Cite this