Real-Time Risk Prediction on the Wards: A Feasibility Study.

Abstract:

OBJECTIVE:Failure to detect clinical deterioration in the hospital is common and associated with poor patient outcomes and increased healthcare costs. Our objective was to evaluate the feasibility and accuracy of real-time risk stratification using the electronic Cardiac Arrest Risk Triage score, an electronic health record-based early warning score. DESIGN:We conducted a prospective black-box validation study. Data were transmitted via HL7 feed in real time to an integration engine and database server wherein the scores were calculated and stored without visualization for clinical providers. The high-risk threshold was set a priori. Timing and sensitivity of electronic Cardiac Arrest Risk Triage score activation were compared with standard-of-care Rapid Response Team activation for patients who experienced a ward cardiac arrest or ICU transfer. SETTING:Three general care wards at an academic medical center. PATIENTS:A total of 3,889 adult inpatients. MEASUREMENTS AND MAIN RESULTS:The system generated 5,925 segments during 5,751 admissions. The area under the receiver operating characteristic curve for electronic Cardiac Arrest Risk Triage score was 0.88 for cardiac arrest and 0.80 for ICU transfer, consistent with previously published derivation results. During the study period, eight of 10 patients with a cardiac arrest had high-risk electronic Cardiac Arrest Risk Triage scores, whereas the Rapid Response Team was activated on two of these patients (p < 0.05). Furthermore, electronic Cardiac Arrest Risk Triage score identified 52% (n = 201) of the ICU transfers compared with 34% (n = 129) by the current system (p < 0.001). Patients met the high-risk electronic Cardiac Arrest Risk Triage score threshold a median of 30 hours prior to cardiac arrest or ICU transfer versus 1.7 hours for standard Rapid Response Team activation. CONCLUSIONS:Electronic Cardiac Arrest Risk Triage score identified significantly more cardiac arrests and ICU transfers than standard Rapid Response Team activation and did so many hours in advance.

journal_name

Crit Care Med

journal_title

Critical care medicine

authors

Kang MA,Churpek MM,Zadravecz FJ,Adhikari R,Twu NM,Edelson DP

doi

10.1097/CCM.0000000000001716

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

1468-73

issue

8

eissn

0090-3493

issn

1530-0293

journal_volume

44

pub_type

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