David Osenton, a retired engineer in his early 70s, nearly died due to medical mistakes and delays at the John Radcliffe Hospital in Oxford. His daughter, Karen, invoked Martha's rule to demand a second opinion, which likely saved his life.
Background
David first visited his GP over a month before his hospitalization, complaining of extreme breathlessness. Over subsequent weeks, he became increasingly thin and weak with suspected heart failure. Despite repeated visits to the accident and emergency ward, he was sent home each time before finally being admitted to a specialist cardiac unit last July.
Deterioration in Hospital
For six days, David's condition worsened. He became thin, jaundiced, and could barely lift his head. His daughter Karen, a teacher from Aynho, West Northamptonshire, described how he couldn't walk, sleep, or eat. Even other patients noticed his decline.
On the sixth day, Karen's mother Kathleen met her tearfully at the hospital, pleading for help. David was on the edge of his bed, rocking, barely able to speak. Karen walked to the nurses' station and demanded a consultant, invoking Martha's rule.
Immediate Response
Within minutes, doctors filled the room. David had multi-organ failure and fluid-filled lungs. He was transferred to intensive care, where a senior consultant called him "the sickest person in the hospital."
Oxford University Hospitals NHS Foundation Trust (OUH) apologized for mistakes in treating David's cardiac failure. Delays were partly due to service pressures and staffing limitations, but clinicians also failed to notice his deterioration. A lapse in communication caused confusion between teams over responsibility for his care.
Recovery and Aftermath
David slowly recovered, but he is no longer the active motorcyclist and hands-on grandfather he once was. He becomes shaky and light-headed on family outings and needs to rest frequently. The family remains angry about how Kathleen's concerns were dismissed.
Karen emphasized the importance of advocating for loved ones, especially for older generations who tend not to question doctors. She noted that Martha's rule provides a critical safeguard.
Hospital Statement
Prof Andrew Brent, chief medical officer at OUH, apologized for the care David received, stating the trust is committed to listening to concerns and continuously improving care. He highlighted that Martha's rule and second opinions provide additional safeguards for patients.
Martha's rule, implemented after the death of 13-year-old Martha Mills, may have saved over 500 lives in England since 2024. It empowers patients and families to request an urgent second opinion if they feel care is inadequate.



