And determination were points during the 2010s erstwhile the fig of claims were higher per A&E attendance than they were present earlier falling.
But the sustained summation implicit the past 5 years is causing concern, accidental experts.
The signifier is not being repeated successful different areas, specified arsenic maternity oregon orthopaedics, and the debased constituent successful 2020-21 is thought to beryllium unrelated to immoderate behaviour changes by patients during the Covid pandemic arsenic it takes 3 years connected mean for a assertion to beryllium submitted.
The Royal College of Emergency Medicine told the BBC it was disquieted astir the rise, linking it to expanding unit and agelong delays being seen successful A&E successful caller years.
Over the past 2 years 1 successful 10 patients who attended A&E spent much than 12 hours waiting to beryllium treated oregon discharged.
RCEM's Dr Adrian Boyle said the figures were "sobering".
"This is simply a concern. But it is not astonishing erstwhile you spot however engaged departments are. People are staying longer and unit connected staffing is increasing."
But helium said objective negligence cases were inactive comparatively uncommon – happening successful lone astir 1 successful each 17,000 attendances.
NHS Resolution, which supports NHS trusts with objective negligence claims, said it was taking enactment connected the "high volume" of claims and has published reports to assistance the NHS larn from mistakes.
Such mistakes see missing the signs of acute deterioration successful patients, failing to bid the indispensable tests and scans and making incorrect diagnoses.
NHS England said determination were signs A&E waiting times were improving - and galore of these claims related to historical cases a fewer years old.
Matthew Hopkins, of NHS Alliance, which represents hospitals, said wellness bosses were "making each effort is made to guarantee safe, high-quality care, and that lessons are learned erstwhile that falls short".
For Stephen, "every waking hour" is spent worrying astir his son.
"I cognize unit are nether pressure," helium says, "but this is astir doing the basics right. They failed Oli."
Additional reporting Nat Wright
English (US)·