What is actually happening in Stroke?

Can You Get the Right Treatment in Time?

Stroke kills 35,000 people a year in England and is the leading cause of adult disability. Only 11% of ischaemic stroke patients receive clot-busting thrombolysis, and fewer than 4% get thrombectomy — despite evidence it transforms outcomes.

Stroke is the fourth leading cause of death in England and the single largest cause of adult disability. Around 100,000 strokes occur each year, killing approximately 35,000 people. For every person who dies, two more survive with significant disability — difficulty speaking, walking, or living independently. The economic cost to the NHS and social care is estimated at £8.9 billion annually, with additional costs to individuals, families, and employers that are harder to quantify but likely larger still.

The speed of treatment determines outcomes more than almost any other factor in emergency medicine. For ischaemic stroke — caused by a blood clot blocking a brain artery, accounting for 85% of strokes — two treatments are transformative if delivered within hours. Thrombolysis (clot-dissolving drugs) must be given within 4.5 hours. Thrombectomy (mechanical clot retrieval) can be effective up to 24 hours but is most powerful within 6 hours. The evidence base is unambiguous: both treatments reduce death and disability with large effect sizes. Yet England’s thrombolysis rate sits at just 11%, unchanged for five years. The thrombectomy rate is 3.8% — rising, but still far below the estimated 10–12% of patients who could benefit.

The bottleneck for thrombectomy is infrastructure. The procedure requires specialist neurointerventional teams operating in centres with 24/7 catheter laboratory access. England has 24 thrombectomy-capable centres, but only a handful provide round-the-clock services. A patient having a stroke at 3am in rural Lincolnshire or Cornwall faces fundamentally different odds to one in central London. The NHS Long-Term Plan committed to increasing thrombectomy to 10% of stroke patients, but progress has been slow and uneven.

Stroke unit care — admission to a specialist ward with dedicated stroke teams — is itself an evidence-based intervention that reduces mortality by approximately 20%. The national rate peaked at 84% in 2016 and has since declined to 78%, driven by bed pressures and emergency department crowding. Patients who arrive by ambulance but face long waits in A&E before reaching a stroke ward lose the benefit of rapid specialist assessment. SSNAP audit data shows wide variation between trusts: the best admit over 95% of patients to a stroke unit; the worst manage fewer than 60%.

Mortality data shows a long-term decline that has flattened. Age-standardised stroke mortality fell from 47 per 100,000 in 2012 to 40 per 100,000 in 2023. Much of the earlier improvement came from better blood pressure management and statin prescribing in primary care — prevention rather than acute treatment. Further gains will require faster pre-hospital pathways, more thrombectomy capacity, and sustained investment in rehabilitation services that are currently fragmented and underfunded. The Stroke Association estimates that 45% of stroke survivors do not receive the six-month review recommended by national guidelines.

Age-standardised mortality rate per 100,000 population. All cerebrovascular diseases.

Source: ONS, Death registrations, cerebrovascular diseases, Updated annual

% of ischaemic stroke patients receiving thrombolysis or thrombectomy.

Source: SSNAP, Sentinel Stroke National Audit Programme, Updated quarterly

Sources & Methodology

SSNAP — Sentinel Stroke National Audit Programme. Clinical audit covering 99% of acute stroke admissions in England, Wales, and Northern Ireland. Treatment rates, stroke unit admission, and care quality indicators. Published quarterly.

ONS — Death registrations, cerebrovascular diseases. Age-standardised mortality rates per 100,000 population. ICD-10 codes I60–I69. Published annually.

Stroke Association — State of the Nation reports. Rehabilitation access and post-stroke review data.

Mortality rates are age-standardised to the 2013 European Standard Population. Thrombolysis rate measures the proportion of confirmed ischaemic stroke patients receiving alteplase. Thrombectomy rate measures the proportion receiving mechanical clot retrieval. Both figures cover England only.