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Reengineering a Secondary Alarm Notification System (SANS) to Reduce Response Time to Adverse Cardiac Events: A Retrospective Pre-Post Analysis

Hansen, Christopher J
http://orcid.org/0000-0001-5655-5089
http://rave.ohiolink.edu/etdc/view?acc_num=osu1595552466461705

Abstract Details

2020, Master of Science, Ohio State University, Industrial and Systems Engineering.
Objective: To determine the association between a re-engineered Secondary Alarm Notification System (SANS) and nursing response time to critical cardiac alarms in the hospital. Intervention: The re-engineered SANS on nurse cellphones distinguished the human-initiated code blue audio sound by incorporating speech and delaying the automatically generated critical cardiac alarm sound, used for asystole, v-tach, and vfib/vtac, for thirty seconds. Design: This is a retrospective pre-post implementation study using routinely collected data. We used linear mixed models to assess the pre-post change in response time, Fisher’s exact test for the proportion of response times longer than 120 seconds, and Individual-Moving Range (I-MR) control charts for process stability. Participants: Pre-intervention: four hospitals, 73 acute care units, 1189 beds, 5 January 2015 to 28 March 2016. Post-intervention: four hospitals, 79 acute care, 1252 beds, 18 April 2016 to 31 May 2018. Results: Response time for code blue decreased at all hospitals (main 26.91 s to 22.32 s, p<0.0001; cardiac 127.10 s to 52.43 s, p<0.0001; cancer 18.03 s to 15.39 s, p<0.0001). Over the entire post-implementation period at all hospitals, there was reduced variance and the improvements were sustained. Response time for the automatically generated critical cardiac alarms increased at all hospitals. In the post period, there were 25.0% fewer automatically generated critical cardiac alarms. Conclusion: A re-engineered SANS was associated with a sustained reduced response time and variance for code blue alarms and increased response time for automatically generated critical cardiac alarms.
Emily Patterson (Advisor)
Michael Rayo (Advisor)
27 p.
Health Care; Information Science

Recommended Citations

Citations

  • Hansen, C. J. (2020). Reengineering a Secondary Alarm Notification System (SANS) to Reduce Response Time to Adverse Cardiac Events: A Retrospective Pre-Post Analysis [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595552466461705

    APA Style (7th edition)

  • Hansen, Christopher. Reengineering a Secondary Alarm Notification System (SANS) to Reduce Response Time to Adverse Cardiac Events: A Retrospective Pre-Post Analysis. 2020. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1595552466461705.

    MLA Style (8th edition)

  • Hansen, Christopher. "Reengineering a Secondary Alarm Notification System (SANS) to Reduce Response Time to Adverse Cardiac Events: A Retrospective Pre-Post Analysis." Master's thesis, Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595552466461705

    Chicago Manual of Style (17th edition)

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This open access ETD is published by The Ohio State University and OhioLINK.