Manchester study finds kidney checks missed after hospital

beehiveweb.co.uk editorial team 2026-08-12 16:32 3 min read

A woman in a blue coat walking toward the entrance of a general hospital.

Only 19% of hospital episodes of acute kidney injury were recorded in primary care using recommended codes within 30 days of discharge, according to a University of Manchester study of more than 209,000 patients in England.

The finding does not show that every unrecorded case received no care. But researchers say it points to repeated gaps as people move from hospital back to GP-led care, when follow-up is intended to help identify continuing kidney problems and reduce future risks.

Published in BMC Medicine on 12 August 2026, the research examined records from more than 1,400 general practices across England. It is described by the University of Manchester as the first major investigation to examine post-discharge acute kidney injury care at this scale in English primary care.

The gap between hospital discharge and GP records

Acute kidney injury, often shortened to AKI, is a clinical syndrome in which the kidneys stop working properly. It commonly occurs during severe illness or after major surgery; the University of Manchester says it affects up to one in five people in hospital.

After an AKI episode, patients can remain at higher risk of emergency readmission, another AKI episode, chronic kidney disease and major cardiovascular events. National guidance places primary care at the centre of recovery after discharge, including follow-up monitoring and identification of kidney disease.

Manchester study finds kidney checks missed after hospital

Study measure	Finding
Hospital AKI episodes recorded in primary care within 30 days using recommended codes	19%
Patient records analysed	More than 209,000
General practices represented	More than 1,400

The 19% figure measures recommended coding in primary care records, rather than proving the quality of every individual patient’s treatment. Even so, the researchers found that recommended blood and urine tests were often not carried out despite patients having regular contact with primary-care professionals.

Younger patients and surgical cases were less likely to be recorded

Recording was less common among people under 60 and among patients who had undergone major surgery, the study found. Researchers also reported that younger people and those without already documented health concerns were least likely to receive the recommended kidney-health tests.

That pattern matters because follow-up is not simply an administrative exercise. Blood and urine tests can help clinicians assess whether kidney function has recovered and whether there are signs of longer-term kidney disease after an acute illness.

The study cannot establish from these records why care was missed in each case. It does, however, identify multiple points where information or responsibility may be lost between hospital and the community.

Researchers call for clearer discharge arrangements

Professor Tom Blakeman, a GP and Professor of Primary Care at the University of Manchester, said the findings showed an urgent need to put kidney-health strategies into practice more consistently across primary and secondary care.

The authors recommend better sharing of discharge information, clear case-specific guidance in discharge summaries and stronger arrangements for responsibility across care settings. They also call for routine recording of AKI diagnoses and recommended blood and urine monitoring after discharge.

Professor Darren Ashcroft, director of the NIHR Greater Manchester Patient Safety Research Collaboration, said patient safety depends on delivering appropriate care at the right time, especially during transitions between healthcare settings. The research provides evidence for improving how post-discharge follow-up for AKI is coordinated across England.

Source: University of Manchester News

Context & actions About this article

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This report follows the University of Manchester release on a population-based study of post-discharge AKI care in England.

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