The impact of an Emergency Department ambulance offload nurse role: A retrospective comparative study

Patterns in California Ambulance Patient Offload Times by Local Emergency Medical Services Agency

Importance

Ambulance offload delays are a timely and crucial issue with implications for patients, emergency medical services (EMS) agencies, hospitals, and communities. Published data on recent patterns in ambulance patient offload times (APOTs) are sparse.

Objective

To examine patterns in APOT by California local EMS agency and variation between and within local agencies.

Design, Setting, and Participants

This cohort study used APOT reports from the California EMS Authority and local EMS agencies between January 1, 2021, and June 30, 2023, to examine patterns in ambulance offload times. County-level population data were collected from the US Census Bureau to calculate mean annual offloads per 1000 population.

Exposure

Ambulance transport to emergency departments.

Main Outcomes and Measures

Ambulance offload volumes, mean annual offloads per 1000 population, APOT-1 (a reporting metric that includes the 90th percentile ambulance offload time and number of offloads to a specific hospital) weighted means (SDs), and APOT-1 medians (IQRs).

Results

A total of 5 913 399 offloads across 34 California local EMS agencies were analyzed. The APOT-1 weighted mean (SD) across the state was 42.8 (27.3) minutes, and the median (IQR) monthly hospital-level APOT-1 was 28.9 (14.9-46.3) minutes. Nearly one-half of local EMS agencies (16 of 34 [47.1%], accounting for 79.2% of all offloads) experienced an APOT-1 weighted mean greater than the 30-minute standard set by the state. Moreover, 20 of 33 local EMS agencies (60.6%) reported an annual APOT-1 weighted mean that was worse in 2023 than 2021.

Conclusions and Relevance

In this cohort study, approximately half of all agencies consistently reported ambulance offload times greater than the 30-minute state standard, and there was significant variation between and within agencies. These findings may spur collaborative efforts between stakeholders to determine the most effective strategies for addressing systemic issues resulting in long APOT across California.

A brief history of ramping

'Ramping' is a commonly used term in contemporary Australian healthcare. It is also a part of the public and political zeitgeist. However, its precise definition varies among sources. In the published literature, there are distinctions between related terms, such as 'entry overload' and 'Patient Off Stretcher Time Delay'. How ramping is defined and how it came to be defined have significance for policies and procedures relating to the described phenomenon. Through examination of the history of the term, insights are obtained into the underlying issues contributing to ramping and, accordingly, associated possible solutions.

Impacts of an EMS Hospital Liaison Program on Ambulance Offload Times: A Preliminary Analysis

INTRODUCTION

Ambulance patients who are unable to be quickly transferred to an emergency department (ED) bed represent a key contributing factor to ambulance offload delay (AOD). Emergency department crowding and associated AOD are exacerbated by multiple factors, including infectious disease outbreaks such as the coronavirus disease 2019 (COVID-19) pandemic. Initiatives to address AOD present an opportunity to streamline ambulance offload procedures while improving patient outcomes.

STUDY OBJECTIVE

The goal of this study was to evaluate the initial outcomes and impact of a novel Emergency Medical Service (EMS)-based Hospital Liaison Program (HLP) on ambulance offload times (AOTs).

METHODS

Ambulance offload times associated with EMS patients transported to a community hospital six months before and after HLP implementation were retrospectively analyzed using proportional significance tests, t-tests, and multiple regression analysis.

RESULTS

A proportional increase in incidents in the zero to <30 minutes time category after program implementation (+2.96%; P <.01) and a commensurate decrease in the proportion of incidents in the 30 to <60 minutes category (-2.65%; P <.01) were seen. The fully adjusted regression model showed AOT was 16.31% lower (P <.001) after HLP program implementation, holding all other variables constant.

CONCLUSION

The HLP is an innovative initiative that constitutes a novel pathway for EMS and hospital systems to synergistically enhance ambulance offload procedures. The greatest effect was demonstrated in patients exhibiting potentially life-threatening symptoms, with a reduction of approximately three minutes. While small, this outcome was a statistically significant decrease from the pre-intervention period. Ultimately, the HLP represents an additional strategy to complement existing approaches to mitigate AOD.

Delayed flow is a risk to patient safety: A mixed method analysis of emergency department patient flow

INTRODUCTION

Increasing emergency department (ED) demand and crowding has heightened focus on the need for better understanding of patient flow.

AIM

This study aimed to identify input, throughput and output factors contributing to ED patient flow bottlenecks and extended ED length of stay (EDLOS).

METHOD

Concurrent nested mixed method study based on retrospective analysis of attendance data, patient flow observational data and a focus group in an Australian regional ED.

RESULTS

Analysis of 89 013 ED presentations identified increased EDLOS, particularly for patients requiring admission. Mapping of 382 patient journeys identified delays in time to triage assessment (0-39 mins) and extended waiting room stays (0-348 mins). High proportions of patients received care outside ED cubicles. Four qualitative themes emerged: coping under pressure, compromising care and safety, makeshift spaces, and makeshift roles.

CONCLUSION

Three key findings emerged: i) hidden waits such as extended triage-queuing occur during the input phase; ii) makeshift spaces are frequently used to assess and treat patients during times of crowding; and iii) access block has an adverse effect on output flow. Data suggests arrival numbers may not be a key predictor of EDLOS. This research contributes to our understanding of ED crowding and patient flow, informing service delivery and planning.

The role and contribution of nurses to patient flow management in acute hospitals: A systematic review of mixed methods studies

BACKGROUND

Increased overcrowding in the emergency department is a potential threat to the quality and safety of patient care. Innovative ways are needed to explore overcrowding, the variables affecting patient flow and interventions necessary for future flow improvement.

AIMS AND OBJECTIVES

The aim of this review is to explore nurses' role(s) and their contribution to maintaining patient flow in acute hospitals through emergency departments.

METHODOLOGY

A systematic review of mixed studies (qualitative, quantitative and mixed-method) using narrative synthesis was undertaken. Five major databases-PubMed, CINHAL, BNI, ASSIA and SCOPUS-were searched to identify appropriate primary and secondary studies. Selected studies were critically appraised with a modified CASP tool. Data extraction and analysis was undertaken using narrative synthesis.

RESULTS

In total, 34 articles (31 primary studies and three systematic reviews) met the inclusion criteria. This systematic review is informed by studies from several countries, including the UK, US, Australia, Canada, and the Netherlands. The qualitative arm of this review explored both the role and function of nurses, as well as their experiences and perspectives of the patient flow process, while the quantitative arm investigated nurses' contribution to patient flow in terms of length of stay (LOS), triage time, and other associated performance data.

FINDINGS

Nurses' contribution to patient flow spanned their operational, strategic, and expanded roles. Strategic and expanded nursing roles offered the possibility of reducing LOS, triage time, and ED crowding in addition to improving the experience of patients and staff. Nurses in operational roles deployed experiential knowledge pertaining to several invisible aspects of patient flow challenges thereby facilitating decision-making for strategic flow improvement. The experiential knowledge and skills of these nursing roles are central to the success of flow-related interventions. However, the effects of emotional labour (e.g. conflicts, frustrations) of patient flow processes on nurses are significant and may have unaccounted for transaction costs and consequences that need acknowledging in order to be addressed by managers and policy makers.

CONCLUSIONS AND RECOMMENDATIONS

Policy-makers and senior managers need to capitalise on nurses' experiential knowledge and skills to enhance the strategic design and development of flow management in acute hospitals. Recommendations from this review have potential to deploy those skills and knowledge in flow improvement.

Transition in Care from EMS Providers to Emergency Department Nurses: A Systematic Review

Background: Transitions in care between emergency medical services (EMS) providers and emergency department (ED) nurses are critical to patient care and safety. However, interactions between EMS providers and ED nurses can be problematic with communication gaps and have not been extensively studied. The aim of this review was to examine (1) factors that influence transitions in care from EMS providers to ED nurses and (2) the effectiveness of interventional strategies to improve these transitions. Methods: We conducted a mixed-methods systematic review that included searches of electronic databases (DARE, MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, CINAHL, Joanna Briggs Institute EBP), gray literature databases, organization websites, querying experts in emergency medicine, and the reference lists cited in included studies. All English-language studies of any design were eligible for inclusion. Two reviewers independently screened titles/abstracts and full-texts for inclusion and methodological quality, as well as extracted data from included studies. We used narrative and thematic synthesis to integrate and explore relationships within the data. Results: In total, 8,348 studies were screened and 130 selected for full text review. The final synthesis included 20 studies. Across 15 studies of moderate-to-high methodological quality, 6 factors influenced transitions: different professional lenses, operational constraints, professional relationships, information shared between the professions, components of the transition process, and patient presentation and involvement. Three interventions were identified in 6 methodologically weak studies: (1) transition guideline (DeMIST, Identification, Mechanism/Medical complaint, Injuries/Information related to the complaint, Signs, Treatment and Trends - Allergies, Medication, Background history, Other information [IMIST-AMBO]) with training, (2) mobile web-based technology (EMS smartphone and geographic information system location data), and (3) a new clinical role (ED ambulance off-load nurse dedicated to triaging and assessing EMS patients). There were mixed findings for the effectiveness of transition guidelines and the new clinical role. Mobile technology was seen positively by both EMS providers and ED nurses as helpful for better describing the pre-hospital context and for planning flow in the ED. Conclusion: While multimedia applications may potentially improve the handoff process, future intervention studies need to be rigorously designed. We recommend interdisciplinary training of EMS and ED staff in the use of flexible structured protocols, especially given review findings that interdisciplinary communication and relationships can be challenging.

Barriers to effective EMS to emergency department information transfer at patient handover: A systematic review

BACKGROUND

Handovers of care are necessary, yet a vulnerable time for patient safety. They can either reduce the risk of medical error during transitions of care or cause direct medical or financial harm to patients due to poor communication.

OBJECTIVE

To review (1) observational studies that quantify the frequency of transfer of specific data points or clinician retention of information provided in prehospital verbal handoff to assess the state of EMS-to-ED handoffs; (2) surveys and interviews of prehospital and ED staff perceptions of the handover process and any perceived barriers to optimal handover found therein; (3) interventional studies that have aimed to improve the quality of EMS to ED handoffs.

METHODS

A systematic review of the literature was performed using Pubmed, Web of Science, Google Scholar, and Cochrane Database of Systematic Reviews and by hand-searching references of relevant articles. Articles were selected that focused on verbal and/or written handover of patient care from EMS to ED providers and that addressed the above goals. Qualitative data was extracted from the articles and assessed using thematic synthesis.

RESULTS

78 articles were identified for full text review, 60 of which met inclusion criteria. Four categories of barriers emerged on thematic synthesis: educational, operational, cultural, and cognitive. Within these categories, 12 initial descriptive themes and 9 suggested interventions were identified.

CONCLUSIONS

Descriptive themes of disrespect & disinterest, environmental factors, redundancy, poor recall, conflicting goals and perspectives, technological issues, information degradation, information loss, lack of standardization, lack of training, delays, and lack of feedback were identified as barriers to effective EMS to ED handovers. Three categories of interventions were identified across the included interventional studies, namely technological, educational, and changes to cultural customs.

Improving emergency department transfer for patients arriving by ambulance: A retrospective observational study

Objective

Extended delays in the transfer of patients from ambulance to ED can compromise patient flow. The present study aimed to describe the relationship between the use of an Emergency Department Ambulance Off‐Load Nurse (EDAOLN) role, ED processes of care and cost effectiveness.

Methods

This was a retrospective observational study over three periods of before (T1), during (T2) and after (T3) the introduction of the EDAOLN role in 2012. Ambulance, ED and cost data were linked and used for analysis. Processes of care measures analysed included: time to be seen by a doctor from ED arrival (primary outcome), ambulance‐ED offload compliance, proportion of patients seen within recommended triage timeframe, ED length of stay (LoS), proportion of patients transferred, admitted or discharged from the ED within 4 h and cost effectiveness.

Results

A total of 6045 people made 7010 presentations to the ED by ambulance over the study period. Several measures improved significantly between T1 and T2 including offload compliance (T1: 58%; T2: 63%), time to be seen (T1: 31 min; T2: 28 min), ED LoS (T1: 335 min; T2: 306 min), ED LoS <4 h (T1: 31%; T2: 33%). Some measures carried over into T3, albeit to a lesser extent. Post‐hoc analyses showed that outcomes improved most for less urgent patients. The annualised net cost of the EDAOLN (if funded from additional resources) of $130 721 could result in an annualised reduction of approximately 3912 h in waiting time to be seen by a doctor.

Conclusion

With the EDAOLN role in place, slight outcome improvements in several key ambulance and ED efficiency criteria were noted. During times of ED crowding, the EDAOLN role may be one cost‐effective strategy to consider.

A review on ambulance offload delay literature

Ambulance offload delay (AOD) occurs when care of incoming ambulance patients cannot be transferred immediately from paramedics to staff in a hospital emergency department (ED). This is typically due to emergency department congestion. This problem has become a significant concern for many health care providers and has attracted the attention of many researchers and practitioners. This article reviews literature which addresses the ambulance offload delay problem. The review is organized by the following topics: improved understanding and assessment of the problem, analysis of the root causes and impacts of the problem, and development and evaluation of interventions. The review found that many researchers have investigated areas of emergency department crowding and ambulance diversion; however, research focused solely on the ambulance offload delay problem is limited. Of the 137 articles reviewed, 28 articles were identified which studied the causes of ambulance offload delay, 14 articles studied its effects, and 89 articles studied proposed solutions (of which, 58 articles studied ambulance diversion and 31 articles studied other interventions). A common theme found throughout the reviewed articles was that this problem includes clinical, operational, and administrative perspectives, and therefore must be addressed in a system-wide manner to be mitigated. The most common intervention type was ambulance diversion. Yet, it yields controversial results. A number of recommendations are made with respect to future research in this area. These include conducting system-wide mitigation intervention, addressing root causes of ED crowding and access block, and providing more operations research models to evaluate AOD mitigation interventions prior implementations. In addition, measurements of AOD should be improved to assess the size and magnitude of this problem more accurately.