Use of in situ simulation and human factors engineering to assess and improve emergency department clinical systems for timely telemetry-based detection of life-threatening arrhythmias.

BACKGROUND AND OBJECTIVES: Medical simulation and human factors engineering (HFE) may help investigate and improve clinical telemetry systems. Investigators sought to (1) determine the baseline performance characteristics of an Emergency Department (ED) telemetry system implementation at detecting simulated arrhythmias and (2) improve system performance through HFE-based intervention. METHODS: The prospective study was conducted in a regional referral ED over three 2-week periods from 2010 to 2012. Subjects were clinical providers working at the time of unannounced simulation sessions. Three-minute episodes of sinus bradycardia (SB) and of ventricular tachycardia (VT) were simulated. An experimental HFE-based multi-element intervention was developed to (1) improve system accessibility, (2) increase system relevance and utility for ED clinical practice and (3) establish organisational processes for system maintenance and user base cultivation. The primary outcome variable was overall simulated arrhythmia detection. Pre-intervention system characterisation, post-intervention end-user feedback and real-world correlates of system performance were secondary outcome measures. RESULTS: Baseline HFE assessment revealed limited accessibility, suboptimal usability, poor utility and general neglect of the telemetry system; one simulated VT episode (5%) was detected during 20 pre-intervention sessions. Systems testing during intervention implementation recorded detection of 4 out of 10 arrhythmia simulations (p=0.03). Twenty post-intervention sessions revealed more VT detections (8 of 10) than SB detections (3 of 10) for a 55% overall simulated arrhythmia detection rate (p=0.001). CONCLUSIONS: Experimental investigations helped reveal and mitigate weaknesses in an ED clinical telemetry system implementation. In situ simulation and HFE methodologies can facilitate the assessment and abatement of patient safety hazards in healthcare environments.

Web survey and embedded intervention on emergency department personnel perceptions of role in patient experience.

Investigators examined emergency department (ED) personnel's perceived job responsibilities and insights into determinants of patient experience. Surveys queried subjects on their perceptions of select clinical care-related actions (CCAs) to assess discipline-specific and service-specific CCA ownership and valuation. Investigators surveyed 153 of 634 ED personnel. A total of 3047 responses to 3802 queries indicated that a specified CCA was 'always' (58.2%) or 'sometimes' (21.9%) the subject's responsibility. A total of 3645 of 3797 responses indicated the CCA specified was 'always' (84.2%) or 'sometimes' (11.8%) important to the patient experience. Twelve percent of subjects reported not being responsible for monitoring or correcting medical errors. After exposure to survey queries, subjects indicated changing or re-considering how they communicate with patients (28.1%), deliver clinical care (20.2%), and arrange disposition/follow-up (20.3%). ED personnel's perceptions of CCA ownership and importance to patient experience were assessed. Subjects reported detectable levels of anticipated job-related behavioral changes traceable to survey-embedded intervention.