Long delays to admission in emergency departments cause higher mortality: implications for the 4-hour target

Area of Science:

• Healthcare policy
• Emergency medicine
• Patient safety

Background:

• The long-standing 4-hour target for emergency department (ED) waits in the UK is under review by NHS England.
• This target has faced criticism for potentially being an arbitrary performance metric rather than a clinically driven one.

Discussion:

• While criticized as a management target, evidence suggests a strong correlation between extended ED wait times and increased patient mortality.
• Abolishing the 4-hour target may overlook its clinical significance in preventing adverse patient outcomes.
• The focus should remain on optimizing patient flow and care quality within emergency settings.

Key Insights:

• Extended waits in emergency departments are linked to a significant rise in mortality for admitted patients.
• The 4-hour target, despite criticisms, appears to be a clinically relevant indicator of patient safety.
• Data suggests that patient outcomes worsen considerably with waits exceeding the 4-hour benchmark.

Outlook:

• Further research is needed to understand the precise clinical impact of exceeding the 4-hour wait time.
• Policy decisions regarding ED targets should prioritize patient outcomes and safety over purely administrative metrics.
• Maintaining or adapting the 4-hour target, with a focus on clinical relevance, is crucial for safeguarding patient well-being in emergency care.