EDOC Web Tables

Throughput

Table 1: Interventions With Promise

Intervention or strategy

Description

Rapid assessment zones or fast-track zones in moderate- and large-sized EDs Rapid assessment and fast-track zones complement or replace typical triage processes to identify patients who will likely remain ambulatory versus requiring further ED, hospital, or other health care services. These typically include dedicated spaces in the ED that can support patients in a chair vs. ED bed and require relatively limited observation.
Virtual ED care ED care delivered using secure video conferencing software or video-based telemedicine, ideally embedded into the hospital’s electronic medical record.
Consistent accountability for patient flow Identifying and implementing dedicated human resources accountable for patient flow during all operational hours. This may occur via CEO-led direction, by employing a director of patient flow, or other interventions.
Rapid viral testing Provision of same-day identification of influenza, parainfluenza virus, COVID-19, RSV, and adenovirus to inform patient management and triage decisions.
Nurse-initiated X-rays in the ED X-rays initiated by nurses vs. physicians within the ED and using standard-of-care X-ray ordering decision-making protocols, such as the Ottawa Ankle Rules, when available.
Short-stay crisis units for mental health Therapeutic spaces for stabilization, assessment, and appropriate referral, with the aim of reducing ED mental health presentations and wait times and/or psychiatric admissions.
Advanced triage protocols Standardized approaches applicable to specific groups of patients for which a triage professional initiates diagnostic or therapeutic actions before the patients are seen by a physician.

ED = emergency department; RSV = respiratory syncytial virus.

Table 2: Moderate- and High-Quality Conclusive Evidencea

Intervention

Description

Characteristics across evidenceb

Intervention effectiveness by outcomec

Short-stay crisis units for mental health Hospital-based therapeutic space that provides overnight stays for a short time, stability, assessment, and appropriate referral
  • Adults experiencing mental health challenges
  • ED length of stay: favourable
  • ED-related wait times: favourable
  • Boarding time: favourable
  • Safety (code grey events): favourable
  • Left without being seen or against medical advice: neutral
Advanced triage protocols Standardized approaches for specific patients that begin diagnostic testing or treatment before being seen by a physician
  • Adults
  • Children
  • ED length of stay: favourable
  • Patient satisfaction: favourable
Rapid influenza testing Rapid viral detection test for children with breathing symptoms and fever
  • Children in the ED
  • Urban settings
  • ED length of stay: neutral
Nurse-initiated X-rays Expanding scope of practice of ED nurses to request and interpret diagnostic tests
  • Adults and children in the ED with distal limb injuries
  • ED-related wait times: neutral
  • ED revisits: neutral

ED = emergency department.
a Interventions with certain evidence or evidence with some uncertainty (moderate or high certainty) that is moderate or high quality based on AMSTAR 2 ratings.
b Population and setting characteristics of the individual studies that contributed to the evidence.
c The outcome measured in the evidence with its effectiveness across the evidence. Favourable: certain evidence or evidence with some uncertainty of better effectiveness of the intervention versus a comparator. Neutral: certain evidence or evidence with some uncertainty (moderate or high certainty) that neither the intervention nor the comparator was favoured.
 

Table 3: New and Emerging Interventions

Intervention

Description

Implemented where?

Evidence-informed practice change leaf indicates implemented in Canada Evidence-based approach to treating atrial fibrillation Western Canada
Group-facilitated audit and feedback leaf indicates implemented in Canada Pediatricians increase quality of care for pediatric ED patients with bronchiolitis through chart audits and feedback Calgary, Alberta
Canadian Syncope Risk Score leaf indicates implemented in Canada Canadian Syncope Risk Score used to differentiate serious from benign causes of syncope in patients presenting at the ED after loss of consciousness; assess the impact on ED wait times and resources and patient safety Ottawa, Ontario
Triage kiosks leaf indicates implemented in Canada Patients accessing ED kiosks to assist with self-triage to alleviate pretriage ED wait times Multiple countries including Canada and the US
Machine learning to predict 30-day readmissions leaf indicates implemented in Canada Machine learning model predicts patient hospital readmission and allows hospital administrators and decision-makers to better allocate resources Modelling conducted by researchers at the University of British Columbia
Machine learning decision support system for patient triage Decision support system for ED triage to predict hospital admission and ED length of stay using routinely collected data New Zealand
Artificial intelligence-assisted triage Mediktor Hospital tool to triage gynecological and obstetrical patients Spain
Machine learning to predict patient admission status Machine learning algorithms to predict patients’ needs for hospital admission Researchers in the US
Mobile self-triage leaf indicates implemented in Canada Symptoms Pal app helps user determine who needs help at an ED, can wait for a primary care appointment, or attend to symptoms through self-care University of Ottawa (Ottawa, Ontario)
Free-standing ED model ED is not structurally connected to a hospital with inpatient services Multiple countries, including France, Spain, Sweden, Italy, and the US
Physician leader role leaf indicates implemented in Canada ED physician leadership roles to improve patient flow and provider experiences Alberta
ED peer-to-peer program leaf indicates implemented in Canada ED physicians receive on-demand coaching and support Ontario (including rural and remote)
Serious gaming as an educational tool leaf indicates implemented in Canada Games to train clinicians to develop skills to work in the ED McMaster University (Hamilton, Ontario)
Education for ED staff in patient flow Modified Delphi and literature review about ED staff flow training Researchers in Canada
Mandatory or standardized nurse-to-bed ratios Literature review of nurse-to-patient ratios in the ED and their effect on patient safety and outcomes Report from ECRI (Emergency Care Research Institute)
Discrete event simulation and data envelopment analysis to measure ED performance and efficiency Simulation model to explore resource allocation configurations for the ED Researchers from Iraq and Malaysia

ED = emergency department.
Note: leaf indicates implemented in Canada indicates implemented in Canada.

Table 4: Inconclusive, Unfavourable, or Low-Quality Evidence

Intervention

Characteristics across evidencea

Intervention effectiveness by outcomeb

Needs assessment by nurses or care coordination teams in ED
  • Adults
  • Older adults
  • Nonemergent conditions
  • Poisoning
  • ED length of stay: moderate quality, mixed, inconclusive
  • ED revisits: moderate quality, favourable, inconclusive
Interventions to improve operational ED processes for children (e.g., virtual observation units, pediatric EDs, general practitioner cooperatives in the ED, pediatrician at triage, pediatric consultation liaison team)
  • Children including those experiencing mental health challenges
  • ED length of stay: moderate quality, favourable or neutral or mixed, inconclusive
  • ED visits: moderate quality, unfavourable, inconclusive
  • Parental satisfaction: moderate quality, favourable, inconclusive
  • ED-related wait times: moderate quality, favourable, inconclusive
Primary health care practitioner at triage (e.g., general practitioner, nurse practitioner, nurse, primary care provider, primary care nurse practitioner, primary care triage nurse with team triage)
  • Adults
  • Children
  • Urban settings
  • Rural settings
  • ED length of stay: low quality, favourable, inconclusive
  • ED revisits: low quality, favourable, inconclusive
  • Patient satisfaction: low quality, favourable, inconclusive
  • Time to triage or physician initial assessment: low quality, favourable, inconclusive
  • Left without being seen or against medical advice: low quality, favourable, inconclusive
Lean health care interventions supported by digital technologies (e.g., electronic medical records, charting, and patient tracking systems; automation systems)
  • Children
  • ED length of stay: moderate quality, favourable, inconclusive
  • ED-related wait times: moderate quality, favourable, inconclusive
  • Left without being seen: moderate quality, favourable, inconclusive
  • Patient satisfaction: moderate quality, favourable, inconclusive
ED consultation interventions (e.g., improving access to consultants in ED, expediting ED consultations)
  • Adults
  • Children
  • Appendicitis
  • Internal medicine
  • Psychiatric conditions
  • Surgical
  • Cardiology
  • Critical or end-stage illness
  • Pneumonia
  • Trauma
  • Sepsis
  • ED length of stay: low quality, favourable, inconclusive
  • Consultation response time: low quality, favourable, inconclusive
  • Other ED-related wait times: low quality, favourable, inconclusive
ED-based models of care (e.g., clinical case management, care coordination, patient navigation)
  • Adults
  • Older adults
  • Urban settings
  • People who access the ED frequently (more than 3 times in the past year)
  • People experiencing houselessness
  • ED visits: low quality, favourable
Nurse-initiated interventions in ED (e.g., analgesia, treatment protocols)
  • Adults
  • Children
  • Neonates
  • Pain
  • Asthma
  • Musculoskeletal injury
  • Traumatic extremity or pain
  • Time to treatment: low quality, favourable, inconclusive
  • Time to analgesia: low quality, favourable, inconclusive
Medical scribes to support clinicians
  • Not reported
  • ED length of stay: moderate quality, neutral, inconclusive
  • Time to disposition: moderate quality, neutral, inconclusive
  • Patient satisfaction: moderate quality, favourable, inconclusive
Dedicated care for urological patients in EDs
  • Urological surgery
  • Time to operating room: moderate quality, favourable, inconclusive
Nurse-led care coordination program
  • Children
  • ED visits: moderate quality, neutral, inconclusive
Triage liaison providers in ED
  • Urban settings
  • ED length of stay: low quality, favourable or neutral, inconclusive
  • Left without being seen or completing assessment: low quality, favourable, inconclusive
Nurse-implemented Manchester Triage System in ED
  • Adults
  • Acute ischemic stroke
  • Time to treatment: moderate quality, favourable or neutral, inconclusive
Triage interventions to reduce ED crowding (e.g., physicians in triage, nurse- or physician assistant–led triage, team triage)
  • Not reported
  • ED length of stay: low quality, favourable, conclusive or inconclusive
  • Left without being seen: low quality, favourable or neutral, inconclusive
Medical scribes
  • Not reported
  • ED length of stay: low quality, neutral, conclusive
New provider roles (e.g., new nurse practitioners in ED, physiotherapist as primary provider in ED, primary care physician in ED, weekly attending physiatrist in ED, dedicated urologist, nurse-initiated X-rays)
  • Musculoskeletal injuries, lower limb injuries

fractures, minor wounds

  • People experiencing mental health challenges
  • ED length of stay: low quality, favourable or neutral, inconclusive
  • Left without being seen: low quality, favourable, inconclusive
Improvements in diagnostic testing (e.g., laboratory testing, point-of-care testing, imaging)
  • Children
  • Chest pain
  • Rural and remote EDs
  • ED length of stay: low quality, favourable, inconclusive
Patient streaming (e.g., split flow or fast track)
  • Not reported
  • ED length of stay: low quality, favourable, conclusive
  • Left without being seen: low quality, favourable, inconclusive
Lean interventions
  • Children
  • ED length of stay: low quality, favourable, conclusive
Patient tracking or computerized text messaging
  • Not reported
  • ED length of stay: low quality, favourable, inconclusive
Electronic documentation system with alerts
  • Not reported
  • ED length of stay: low quality, unfavourable, inconclusive
Electronic health records in EDs
  • Not reported
  • ED length of stay: moderate quality, favourable, inconclusive
Pharmacist in ED (medication reviews and patient interviews)
  • Older adults
  • People who take more than 5 medications daily
  • ED revisits: low quality, neutral, conclusive
ED-based care coordination
  • Older adults
  • Falls
  • ED revisits: high quality, neutral, inconclusive
Nurse interventions to maintain patient flow in EDs (e.g., nurse navigators, flow coordinators, case managers, mental health liaison nurse, nurse practitioner in triage, nurse coordinator for bed management)
  • Urban settings
  • ED length of stay: low quality, favourable, inconclusive
  • ED-related wait times: low quality, favourable, inconclusive
  • Ambulance diversion time: low quality, favourable, inconclusive
  • Boarding time and access block: low quality, neutral, inconclusive
  • ED occupancy: low quality, favourable, inconclusive
  • Left without being seen: low quality, favourable or neutral, inconclusive
  • Patient satisfaction: low quality, neutral, inconclusive
Lean interventions
  • Cardiac conditions
  • People experiencing mental health challenges
  • Radiology
  • ED length of stay: high quality, favourable, inconclusive
  • ED-related wait times: high quality, favourable, inconclusive
  • Boarding time: high quality, favourable, inconclusive
  • Left without being seen: high quality, favourable, inconclusive
  • Patient satisfaction: high quality, favourable, inconclusive
Pelvic point-of-care ultrasound
  • Pregnant people
  • Urban settings
  • ED length of stay: low quality, favourable, inconclusive
Early assessment by health and social care teams
  • Older adults
  • People who access the ED frequently
  • People experiencing psychiatric concerns, drug or alcohol use
  • ED length of stay: moderate quality, no evidence
  • ED revisits: moderate quality, neutral, inconclusive
  • Patient satisfaction: moderate quality, favourable, inconclusive
  • Health care professional workload and team effectiveness: moderate quality, favourable, inconclusive
Nurse-initiated X-rays
  • Adults
  • Children
  • Distal limb injuries (e.g., foot, ankle, or knee injuries)
  • ED length of stay: moderate quality, favourable, inconclusive
  • Time to X-ray: moderate quality, neutral, inconclusive
  • Time from triage to medical assessment: moderate quality, neutral, conclusive
  • ED revisits: moderate quality, neutral, conclusive
  • Missed injuries: moderate quality, mixed, inconclusive
  • Patient satisfaction: moderate quality, neutral, inconclusive
Liaison psychiatry services (e.g., mental health practitioners in ED, triage tools for mental health, access centres with social workers and mental health therapists, psychiatric daily rounds, psychiatric fast-track service, external specialist units with crisis assessment or psychiatric emergency services)
  • Adults
  • People experiencing mental health challenges
  • Rural settings
  • ED length of stay: moderate quality, favourable or neutral, inconclusive
  • ED visits: moderate quality, favourable, inconclusive
  • Left without being seen: moderate quality, favourable or neutral, inconclusive
  • ED-related wait times (e.g., admission to departure, time to triage): moderate quality, favourable or neutral, inconclusive
Deferral of care to real-time electronic notifications
  • Adults
  • People who access the ED frequently
  • People experiencing mental health challenges
  • Noncancer pain
  • ED length of stay: moderate quality, neutral, inconclusive
  • ED revisits: moderate quality, mixed, inconclusive
Redirection to nonemergency setting at later date or onsite primary care clinic
  • Adults
  • ED visit: low quality, favourable, inconclusive
  • ED revisits: low quality, neutral, inconclusive
Physical therapists in EDs
  • Musculoskeletal disorders (e.g., low back pain, peripheral soft tissue injury, associated fractures)
  • ED length of stay: low quality, favourable, inconclusive
  • ED-related wait times: low quality, favourable, inconclusive
  • ED revisits: low quality, neutral, inconclusive
  • Adverse events: low quality, neutral, inconclusive
  • Patient satisfaction: low quality, favourable, inconclusive
Nurse-led interventions
  • Children
  • Older adults
  • Cancer
  • Injuries (e.g., minor, limb, soft tissue)
  • People requiring assistance with activities of daily living
  • ED length of stay: critically low quality, no evidence
  • ED-related wait times: critically low quality, favourable or unfavourable, inconclusive
  • ED revisits: critically low quality, neutral, inconclusive
  • Patient satisfaction: critically low quality, favourable, inconclusive
Primary care professionals in EDs (e.g., nurse practitioner, sessions general practitioners)
  • Adults
  • Pain
  • Urban settings
  • Nonemergent conditions
  • ED length of stay: high quality, neutral, inconclusive
  • ED revisits: high quality, neutral, inconclusive
Earlier physician assessment (e.g., rapid assessment policy, improved triage, improved specialty consultation process)
  • Adults
  • ED length of stay: moderate quality, favourable or neutral, inconclusive
  • ED-related wait times: moderate quality, favourable, inconclusive
  • Ambulance diversion times: moderate quality, favourable, inconclusive
  • Left without being seen: moderate quality, favourable, inconclusive
Physician at triage
  • Adults
  • ED length of stay: moderate quality, favourable, inconclusive
  • Time to physician: moderate quality, favourable, inconclusive
  • Ambulance diversion times: moderate quality, favourable, inconclusive
  • ED revisits: moderate quality, favourable, inconclusive
  • Left without being seen: moderate quality, favourable, inconclusive
Fast-track or flexible care areas
  • Adults
  • ED length of stay: moderate quality, favourable, inconclusive
  • ED-related wait times: moderate quality, favourable, inconclusive
  • Left without being seen: moderate quality, favourable, inconclusive
Changes in diagnostic testing (e.g., point-of-care testing, initiating lab tests in ED, dedicated laboratory)
  • Adults
  • ED length of stay: moderate quality, favourable, inconclusive
  • Test turnaround time: moderate quality, favourable, inconclusive
Nurse navigator in ED
  • Adults
  • ED length of stay: moderate quality, favourable, inconclusive
Nurse-initiated protocols
  • Adults
  • Time to diagnostic test: moderate quality, favourable, inconclusive
  • Time to treatment: moderate quality, favourable, inconclusive
  • ED length of stay: moderate quality, mixed, inconclusive
Bedside registration
  • Adults
  • Time from triage to room: moderate quality, favourable, inconclusive
Earlier inpatient consultation
  • Adults
  • ED length of stay: moderate quality, favourable, inconclusive
  • Disposition time: moderate quality, favourable, inconclusive
  • Boarding time: moderate quality, favourable, inconclusive
  • Consultation time: moderate quality, neutral, inconclusive
Increased number of ED beds
  • Adults
  • Boarding time: moderate quality, unfavourable, inconclusive
  • Left without being seen: moderate quality, neutral, inconclusive
Nurses initiating medications
  • Adults
  • Children
  • Pain
  • Asthma
  • Chronic obstructive pulmonary disease
  • ED length of stay: critically low quality, neutral, inconclusive
  • ED-related wait times: critically low quality, favourable, inconclusive
  • Time to physician initial assessment: critically low quality, neutral, inconclusive
  • Adverse events: critically low quality, neutral, inconclusive
  • Patient satisfaction: critically low quality, favourable, inconclusive
Patient-centred education on asthma
  • Adults
  • Asthma
  • ED revisits: low quality, favourable or neutral, inconclusive
  •  
Aged care pharmacist (medication reconciliation, review, and referral)
  • Older adults
  • ED length of stay: low quality, unfavourable, inconclusive
  • ED revisits: low quality, neutral, inconclusive
Specialist nurse assessments
  • Older adults
  • Epilepsy
ED revisits: low quality, neutral, inconclusive
ED medical assessment units
  • Older adults
  • Adults
ED revisits: low quality, favourable, inconclusive
Specialist geriatric ED
  • Older adults
  • Acutely ill
  • ED visits: moderate quality, neutral, inconclusive
  • ED revisits: moderate quality, neutral, inconclusive
Screening strategies (laboratory tests or medical clearance)
  • Children experiencing mental health challenges
  • ED length of stay: moderate quality, unfavourable, inconclusive
  •  
Specialized models of care (behavioural health unit or child guidance model)
  • Children experiencing mental health challenges
  • ED length of stay: moderate quality, favourable, inconclusive
  • ED revisits: moderate quality, neutral, inconclusive
Acute medical assessment units
  • Children
  • Medically stable
  • People with comorbidities and functional impairment
  • Sepsis, pneumonia, chronic obstructive pulmonary disease
  • ED length of stay: critically low quality, favourable, inconclusive
  • ED-related wait times: critically low quality, favourable, inconclusive
  • Number of boarded patients: critically low quality, favourable, inconclusive
  • ED visits: critically low quality, favourable, inconclusive
Nurse or nurse practitioner-initiated Ottawa Ankle Rules
  • Adults
  • ED length of stay: low quality, favourable, inconclusive
  • Time from triage to discharge: low quality, favourable, inconclusive
Triage team in EDs
  • Adults
  • Children
  • Adolescents
  • Urban settings
  • ED length of stay: low quality, neutral, inconclusive
  • Time to physician initial assessment: low quality, neutral, inconclusive
  • ED revisits: low quality, neutral, inconclusive
  • Leaving ED: low quality, neutral, inconclusive
Senior doctor at triage
  • Not reported
  • ED length of stay: moderate quality, favourable, inconclusive
  • ED-related wait times: moderate quality, favourable, inconclusive
  • ED revisits: moderate quality, favourable, inconclusive
  • Leaving without being seen or without treatment complete: moderate quality, favourable, inconclusive
  • Patient satisfaction: moderate quality, neutral, inconclusive
Nurse-led initiation of Ottawa Ankle Rules in ED
  • Adults
  • Ankle injuries
  • ED length of stay: low quality, favourable, inconclusive
Short-stay units in ED
  • Adults
  • Intermediate or high probability of experiencing acute coronary syndrome
  • Cardiac-related ED visits: high quality, favourable, inconclusive
Nurse practitioner in ED
  • Adults
  • Hand or wrist fractures or wounds
  • Peripheral soft tissue injuries
  • Urban settings
  • ED-related wait times: moderate quality, favourable, inconclusive
  • Patient satisfaction: moderate quality, favourable, inconclusive
  •  
Rapid influenza testing
  • Children
  • Respiratory symptoms
  • Urban settings
  • ED revisits: moderate quality, neutral, inconclusive
Electronic patient tracking in pediatric EDs
  • Children
  • Boarding time: low quality, favourable, inconclusive
Nurse reviews diagnosis and prescriptions, arranges follow-up appointments and transportation, and identifies community resources
  • All ages
  • People who visit the ED frequently
  • Patient satisfaction: moderate quality, mixed, inconclusive

ED = emergency department.
a Population and setting characteristics of the individual studies that contributed to the evidence.
b The outcome measured in the evidence with its quality based on A Measurement Tool to Assess Systematic Reviews Version 2 (AMSTAR 2) ratings and the effectiveness across the evidence. Inconclusive: very uncertain evidence (has low or very low certainty). Unfavourable: unfavourable effectiveness of the intervention on outcomes versus a comparator. Low quality: systematic review has a critical flaw based on AMSTAR 2 ratings and may not provide an accurate and comprehensive summary of the available studies that address the question of interest. Moderate quality: systematic review has more than 1 weakness, but no critical flaws. High quality: systematic review provides an accurate and comprehensive summary of the results of the available studies that address the question of interest. Favourable: certain evidence or evidence with some uncertainty of better effectiveness of the intervention versus a comparator. Neutral: certain evidence or evidence with some uncertainty (moderate or high certainty) that neither the intervention nor the comparator was favoured. Mixed: heterogeneous results for effectiveness of an intervention versus a comparator, and the heterogeneity is too serious to draw a conclusion. Unfavourable: unfavourable effectiveness of the intervention on outcomes versus a comparator. Inconclusive: very uncertain evidence (has low or very low certainty). No evidence: there is no evidence from primary studies.