Coroner Issues Stark Warning Over NHS Ambulance Database Accuracy After Fatal Error
A coroner has raised serious concerns about the accuracy of ambulance service address databases after a man died from an untreated blood clot when emergency responders were sent to the wrong location. The tragic incident has prompted a formal prevention of future deaths report, highlighting systemic issues in how the NHS locates patients in critical need.
Fatal Delay in Emergency Response
Darryl Johnson, a 52-year-old resident of Sandy in Bedfordshire, died from a pulmonary thrombo-embolism—a condition where a blood clot blocks a blood vessel in the lungs—after an ambulance failed to reach his correct address. An inquest revealed that Mr. Johnson called 999 at 6:17 am on 24 February 2025, reporting breathing difficulties and feeling faint, classic symptoms of a pulmonary embolism.
Despite Mr. Johnson providing the correct address of 27b Market Square, the East of England Ambulance Service dispatched a crew to 27a Market Square approximately an hour later. When no response was received at the neighbouring property, the ambulance team contacted the fire service to force entry. Finding the home empty, they closed the emergency call without locating the patient.
Database Inaccuracies and Systemic Failures
Coroner Emma Witting discovered that the ambulance trust relies on an address and map database supplied by Ordnance Survey, which frequently contains inaccuracies in postal addresses and mapping coordinates. In her report, Ms. Witting acknowledged that maintaining a completely accurate database is challenging due to new developments and property changes.
However, she emphasized that Mr. Johnson had resided at his address for eleven years and was actively paying council tax, making the database failure particularly alarming. "It is, therefore, of concern why the database still did not have full details of his address," Ms. Witting stated. She formally recommended that the ambulance service take immediate action to prevent similar tragedies in the future.
Ambulance Service Response and Investigation
An East of England Ambulance Service spokesperson expressed sincere condolences to Mr. Johnson's family and friends, confirming that a comprehensive investigation had been conducted following the incident. The trust reviewed and strengthened its procedures for situations where addresses cannot be located in the Ordnance Survey database, ensuring correct information is added to their systems.
The findings of this internal investigation were shared with both the coroner and Mr. Johnson's family, though questions remain about how such critical errors can occur in life-or-death emergency responses. The case underscores broader concerns about NHS infrastructure and data reliability during medical emergencies.
Broader Implications for Emergency Services
This incident highlights significant vulnerabilities in emergency service coordination and database management. Key issues identified include:
- Reliance on potentially outdated third-party mapping systems
- Inadequate verification processes for address accuracy during emergency calls
- Protocol gaps when patients cannot be immediately located
- Systemic delays that can prove fatal in time-sensitive medical situations
Coroner Witting's prevention of future deaths report serves as a crucial warning to ambulance services nationwide, urging immediate improvements to address verification systems and database maintenance to safeguard public health.
