The Economic Impact of Community Paramedics Within Emergency Medical Services: A Systematic Review.

BACKGROUND AND OBJECTIVE: Globally, emergency medical services (EMSs) report that their demand is dominated by non-emergency (such as urgent and primary care) requests. Appropriately managing these is a major challenge for EMSs, with one mechanism employed being specialist community paramedics. This review guides policy by evaluating the economic impact of specialist community paramedic models from a healthcare system perspective. METHODS: A multidisciplinary team (health economics, emergency care, paramedicine, nursing) was formed, and a protocol registered on PROSPERO (CRD42023397840) and published open access. Eligible studies included experimental and analytical observational study designs of economic evaluation outcomes of patients requesting EMSs via an emergency telephone line ('000', '111', '999', '911' or equivalent) responded to by specialist community paramedics, compared to patients attended by usual care (i.e. standard paramedics). A three-stage systematic search was performed, including Peer Review of Electronic Search Strategies (PRESS) and Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). Two independent reviewers extracted and verified 51 unique characteristics from 11 studies, costs were inflated and converted, and outcomes were synthesised with comparisons by model, population, education and reliability of findings. RESULTS: Eleven studies (n = 7136 intervention group) met the criteria. These included one cost-utility analysis (measuring both costs and consequences), four costing studies (measuring cost only) and six cohort studies (measuring consequences only). Quality was measured using Joanna Briggs Institute tools, and was moderate for ten studies, and low for one. Models included autonomous paramedics (six studies, n = 4132 intervention), physician oversight (three studies, n = 932 intervention) and/or special populations (five studies, n = 3004 intervention). Twenty-one outcomes were reported. Models unanimously reduced emergency department (ED) transportation by 14-78% (higher quality studies reduced emergency department transportation by 50-54%, n = 2639 intervention, p < 0.001), and costs were reduced by AU$338-1227 per attendance in four studies (n = 2962). One study performed an economic evaluation (n = 1549), finding both that the costs were reduced by AU$454 per attendance (although not statistically significant), and consequently that the intervention dominated with a > 95% chance of the model being cost effective at the UK incremental cost-effectiveness ratio threshold. CONCLUSIONS: Community paramedic roles within EMSs reduced ED transportation by approximately half. However, the rate was highly variable owing to structural (such as local policies) and stochastic (such as the patient's medical condition) factors. As models unanimously reduced ED transportation-a major contributor to costs-they in turn lead to net healthcare system savings, provided there is sufficient demand to outweigh model costs and generate net savings. However, all models shift costs from EDs to EMSs, and therefore appropriate redistribution of benefits may be necessary to incentivise EMS investment. Policymakers for EMSs could consider negotiating with their health department, local ED or insurers to introduce a rebate for successful community paramedic non-ED-transportations. Following this, geographical areas with suitable non-emergency demand could be identified, and community paramedic models introduced and tested with a prospective economic evaluation or, where this is not feasible, with sufficient data collection to enable a post hoc analysis.

Paramedic clinical practice guideline development in Australia and New Zealand: A qualitative descriptive analysis.

BACKGROUND: This collaborative study by The Australasian College of Paramedicine's Clinical Practice Guidelines (CPG) Working Group aimed to examine CPG development practices in Australian and New Zealand ambulance services. METHODS: Employing a qualitative descriptive design, the research utilised thematic analysis to extract insights from interviews with eleven experts actively involved in CPG development. The study embraced a nominalist and constructivist approach, recognising the intricate connection between individual experiences and the realities of CPG development in the paramedic field. RESULTS: Key findings revealed significant heterogeneity in CPG development practices, emphasising a lack of formal training and a substantial reliance on existing guidelines. The study highlighted challenges in project management flexibility, limited research capacity, and inconsistencies in external consultations and resource utilisation. CONCLUSION: The study recommends adopting project management frameworks, investing in training, and utilising evidence evaluation methodologies like GRADE. It emphasises the need for multidisciplinary teams and formal expertise in evidence synthesis, advocating for targeted training programs. Funding challenges highlight the importance of dedicated budgets and collaborative efforts for resource allocation. Knowledge translation and implementation issues underscore the significance of training programs for evidence evaluation and knowledge translation in overcoming these challenges.

How should non-emergency EMS presentations be managed? A thematic analysis of politicians', policymakers', clinicians' and consumers' viewpoints.

OBJECTIVE: In 2023, Australian government emergency medical services (EMS) responded to over 4 million consumers, of which over 56% were not classified as an 'emergency', at the cost of AU$5.5 billion. We explored the viewpoints of politicians, policymakers, clinicians and consumers on how these non-emergency requests should be managed. DESIGN: A realist framework was adopted; a multidisciplinary team (including paramedicine, medicine and nursing) was formed; data were collected via semistructured focus groups or interviews, and thematic analysis was performed. SETTING AND PARTICIPANTS: 56 participants were selected purposefully and via open advertisement: national and state parliamentarians (n=3); government heads of healthcare disciplines (n=3); government policymakers (n=5); industry policymakers in emergency medicine, general practice and paramedicine (n=6); EMS chief executive officers, medical directors and managers (n=7); academics (n=8), frontline clinicians in medicine, nursing and paramedicine (n=8); and consumers (n=16). RESULTS: Three themes emerged: first, the reality of the EMS workload (theme titled 'facing reality'); second, perceptions of what direction policy should take to manage this ('no silver bullet') and finally, what the future role of EMS in society should be ('finding the right space'). Participants provided 16 policy suggestions, of which 10 were widely supported: increasing public health literacy, removing the Medical Priority Dispatch System, supporting multidisciplinary teams, increasing 24-hour virtual emergency departments, revising undergraduate paramedic university education to reflect the reality of the contemporary role, increasing use of management plans for frequent consumers, better paramedic integration with the healthcare system, empowering callers by providing estimated wait times, reducing ineffective media campaigns to 'save EMS for emergencies' and EMS moving away from hospital referrals and towards community care. CONCLUSIONS: There is a need to establish consensus on the role of EMS within society and, particularly, on whether the scope should continue expanding beyond emergency care. This research reports 16 possible ideas, each of which may warrant consideration, and maps them onto the standard patient journey.

Adverse events from nitrate administration during right ventricular myocardial infarction: a systematic review and meta-analysis.

BACKGROUND: The current guidelines of the American Heart Association (AHA) and European Society of Cardiology (ESC) recommend that when right ventricular myocardial infarction (RVMI) is present patients are not administered nitrates, due to the risk that decreasing preload in the setting of already compromised right ventricular ejection fraction may reduce cardiac output and precipitate hypotension. The cohort study (n=40) underlying this recommendation was recently challenged by new studies suitable for meta-analysis (cumulatively, n=1050), suggesting that this topic merits systematic review. METHODS: The protocol was registered on PROSPERO and published in Evidence Synthesis. Six databases were systematically searched in May 2022: PubMed, Embase, MEDLINE Complete, Cochrane CENTRAL Register, CINAHL and Google Scholar. Two investigators independently assessed for quality and bias and extracted data using Joanna Briggs Institute tools and methods. Risk ratios and 95% CIs were calculated, and meta-analysis performed using the random effects inverse variance method. RESULTS: Five studies (n=1113) were suitable. Outcomes included haemodynamics, GCS, syncope, arrest and death. Arrest and death did not occur in the RVMI group. Meta-analysis was possible for sublingual nitroglycerin 400 µg (2 studies, n=1050) and found no statistically significant difference in relative risk to combined inferior and RVMI at 1.31 (95% CI 0.81 to 2.12, p=0.27), with an absolute effect of 3 additional adverse events per 100 treatments. Results remained robust under sensitivity analysis. CONCLUSIONS: This review suggests that the AHA and ESC contraindications are not supported by evidence. Key limitations include all studies having concomitant inferior and RVMI, not evaluating beneficial effects and very low certainty of evidence. As adverse events are transient and easily managed, nitrates are a reasonable treatment modality to consider during RVMI on current evidence. PROSPERO REGISTRATION NUMBER: CRD42020172839.

Adverse events from nitrate administration during right ventricular myocardial infarction: a systematic review protocol.

OBJECTIVE: This systematic review will aim to summarize and evaluate the literature describing the evidence regarding adverse events from the administration of nitrates during right ventricular myocardial infarction. INTRODUCTION: Withholding nitrates in the setting of right ventricular myocardial infarction is currently recommended by the American Heart Association, European Society of Cardiology, and in the Australian Journal of General Practice, due to the risk that decreasing preload in the setting of already compromised right ventricular ejection fraction may reduce cardiac output and precipitate hypotension or exacerbate cardiogenic shock. The original evidence from 1989 underpinning these recommendations displays methodological weaknesses including low sample size and confounding interventions. More recent and comprehensive research from 2014, 2016, 2018, and 2019 conflicts with the conclusions from the 1989 study, suggesting instead that nitrate administration during right ventricular myocardial infarction results in no significant difference in the rate of adverse events. The combination of recommended practice based on 30-year-old evidence and the emergence of recent challenging evidence suggest that this topic merits systematic review. INCLUSION CRITERIA: The study will include both experimental and observational (descriptive and analytical) study designs that discuss the occurrence of adverse events from the administration of nitrates during a known right ventricular myocardial infarction. METHODS: Six databases will be systematically searched: the Cochrane CENTRAL Register, PubMed, Embase, MEDLINE Complete, CINAHL, and Google Scholar. Identified studies will be independently assessed for inclusion by two investigators using JBI critical appraisal tools. Data will be extracted for narrative and tabular synthesis. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42020172839.