Data cleansing of coding atrial fibrillation and hypertension in GP practices.

The NHS Long Term Plan (Jan 2019) describes an ambition to diagnose more patients and to reduce variation in care, and refers specifically to high numbers of people living with undetected hypertension (HTN) and atrial fibrillation (AF). According to Size of the Prize, Public Health England data there are a significant number of undiagnosed patients across Hampshire, Isle of Wight and Thames Valley which correlate with the potential to avoid 1,870 strokes and 879 heart attacks from improved detection and management of HTN and AF (£49m 3-year savings). The social care cost of stroke across the UK is over £5bn.