A never event is the "kind of mistake (
medical error) that should never happen" in the field of
medical treatment.[1]
According to the
Leapfrog Group never events are defined as "
adverse events that are serious, largely preventable, and of concern to both the public and
health care providers for the purpose of public accountability."[2]
A 2012 study reported there may be as many as 1,500 instances of one never event, a
retained foreign object, per year in the United States. The same study suggests an estimated total of surgical mistakes at just over 4,000 per year in the United States, but these statistics are extrapolations from small samples rather than actual event counts.[1]
United States
A list of events was compiled by the
National Quality Forum and updated in 2012.[3]
The NQF’s report recommends a national state-based event reporting system to improve the quality of patient care.
Patient death or serious disability associated with patient elopement (disappearance)
Patient death or serious disability associated with a medication error (e.g., errors involving the wrong drug, dose, patient, time, rate, preparation or
route of administration)
Patient death or serious disability associated with a hemolytic reaction due to the administration of
ABO/
HLA-incompatible blood or blood products
Patient death or serious disability associated with an
electric shock or elective
cardioversion while being cared for in a healthcare facility
Patient death or serious disability associated with a fall while being cared for in a healthcare facility
Intraoperative or immediately postoperative death in an
ASA Class I patient
Patient death or serious disability associated with the use of contaminated drugs, devices, or biologics provided by the healthcare facility
Patient death or serious disability associated with the use or function of a device in patient care, in which the device is used or functions other than as intended
Patient death or serious disability associated with intravascular
air embolism that occurs while being cared for in a healthcare facility
Patient suicide, or
attempted suicide resulting in serious disability, while being cared for in a healthcare facility
Maternal death or serious disability associated with labor or delivery in a low-risk pregnancy while being cared for in a health care facility
Patient death or serious disability associated with
hypoglycemia, the onset of which occurs while the patient is being cared for in a healthcare facility
Death or serious disability (
kernicterus) associated with failure to identify and treat
hyperbilirubinemia in neonates
Stage 3 or 4
pressure ulcers acquired after admission to a healthcare facility
Any incident in which a line designated for oxygen or other gas to be delivered to a patient contains the wrong gas or is contaminated by toxic substances
Patient death or serious disability associated with a burn incurred from any source while being cared for in a healthcare facility
Patient death or serious disability associated with the use of restraints or bedrails while being cared for in a healthcare facility
Any instance of care ordered by or provided by someone impersonating a physician, nurse, pharmacist, or other licensed healthcare provider
Sexual assault on a patient within or on the grounds of the healthcare facility
Death or significant injury of a patient or staff member resulting from a physical assault (i.e., battery) that occurs within or on the grounds of the healthcare facility
As of 2019, 11 states have mandated reporting for never events, and an additional 16 states have mandated reporting for serious adverse events including never events.[4]
Intravenous administration of mis-selected concentrated
potassium chloride
NHS England produced a report on 148 reported never events in the period from April to September 2013 highlighting particular hospitals with more than one such event.[6] In 2021 there were still about 500 never events each year in the English NHS. According to
Jeremy Hunt a hospital can get as many as 108 safety related instructions in a year.[7]
NHS Improvement has produced monthly and cumulative annual reports since 2015, when the definition of what constitutes a Never Event in the NHS also changed to require not only actual patient harm but also the potential for significant actual harm. Annual counts have therefore increased, and comparing recent with older data is misleading. The definition continues to undergo more minor change.[8] A provisional report for the 10 month period April 1st 2017 to 31st Jan 2018 acknowledged 393 never events within NHS England, including 172 wrong site surgeries, 97 retained foreign body post procedures, 60 wrong implants/prostheses and 31 medication administration errors.[9]
Recommended actions following a never event
The Leapfrog Group suggested four actions to be taken following a never event:[10]