Nav: Home

Risk of death from stroke falls by 24%

March 30, 2020

Thousands more patients each year are surviving strokes, as the risk of death and disability after a stroke fell significantly between 2000 and 2015, according to analysis by Guy's and St Thomas' researchers.

The study, published in PLOS Medicine, looked at data from south London patients who had an ischaemic stroke - one caused by a blood clot - between 2000 and 2015. The team attribute the reduced risk to improvements in care and medication.

After adjustments for population changes, the research showed that the risk of death from stroke fell by 24% over the 15 year period, with the one-year death rate dropping from 32.6% in 2000 to 20.15% in 2015. The one year death rate is the incidence of death within one year of the stroke. The risk of disability after a stroke fell by 23%, from 34.7% in 2000 to 26.7% in 2015.

With around 52,000 people having ischaemic strokes nationwide each year, the team arrived at a figure of 6,300 more patients annually surviving their stroke for over a year, and 3,200 fewer patients each year have a disability as a result of a stroke.

Stroke is a serious condition that occurs when blood supply to part of the brain is cut off. Stroke is the fourth single leading cause of death in England and Wales, and the third biggest cause of death in Scotland and Northern Ireland, with almost 38,000 people dying as a result of stroke in the UK in 2016.

The researchers used data from the South London Stroke Register, which collected data from patients in Lambeth and Southwark. They looked particularly at data from the 3,128 patients who had an ischaemic stroke. Previous analysis of the same source had shown that between 2000 and 2015 the rate of strokes in the area decreased by 43%, with the risk of death from stroke falling by 24%.

The paper showed that the risk of death and disability had reduced for all genders, and for both black and white patients.

Dr Yanzhong Wang, Reader in Medical Statistics at King's College London and author of the study said: "It's really positive news to see that for patients who do have a stroke, the risk of death and disability is decreasing. Alongside our previous work showing a reduction in the rate of strokes it shows that, although there is still more to do, trends are moving in the right direction.

"We think the change is due to improvements to the way we treat stroke, such as higher admission rates to hospital, increased use of CT and MRI scans, and more frequent treatment with thrombolytic and anticoagulant medications in the acute phase of stroke. We also believe that a shift towards patients having less severe strokes, perhaps caused by improved public health, could also play a role in the change.

"We're really grateful to all the patients who have taken part in the South London Stroke Register. Their valuable input is giving us an incredibly detailed understanding of stroke rates, which can help us treat and prevent strokes in the future."

The South London Stroke Register has been looking at the number of strokes recorded among the 350,000 people in south London since 1995. The register uses data sources including anonymous data from A&E records and data collected by specially trained doctors, nurses and field workers. The research was supported by the National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care South London at King's College Hospital NHS Foundation Trust and by the NIHR Biomedical Research Centre based at Guy's and St Thomas' NHS Foundation Trust and Kings College London.
-end-


National Institute for Health Research

Related Stroke Articles:

More stroke awareness, better eating habits may help reduce stroke risk for young adult African-Americans
Young African-Americans are experiencing higher rates of stroke because of health conditions such as high blood pressure, diabetes and obesity, yet their perception of their stroke risk is low.
How to help patients recover after a stroke
The existing approach to brain stimulation for rehabilitation after a stroke does not take into account the diversity of lesions and the individual characteristics of patients' brains.
Kids with headache after stroke might be at risk for another stroke
A new study has found a high incidence of headaches in pediatric stroke survivors and identified a possible association between post-stroke headache and stroke recurrence.
High stroke impact in low- and middle-income countries examined at 11th World Stroke Congress
Less wealthy countries struggle to meet greater need with far fewer resources.
Marijuana use might lead to higher risk of stroke, World Stroke Congress to be told
A five-year study of hospital statistics from the United States shows that the incidence of stroke has risen steadily among marijuana users even though the overall rate of stroke remained constant over the same period.
We need to talk about sexuality after stroke
Stroke survivors and their partners are not adequately supported to deal with changes to their relationships, self-identity, gender roles and intimacy following stroke, according to new research from the University of Sydney.
Standardized stroke protocol can ensure ELVO stroke patients are treated within 60 minutes
A new study shows that developing a standardized stroke protocol of having neurointerventional teams meet suspected emergent large vessel occlusion (ELVO) stroke patients upon their arrival at the hospital achieves a median door-to-recanalization time of less than 60 minutes.
Stroke affects more than just the physical
A new study looks at what problems affect people most after a stroke and it provides a broader picture than what some may usually expect to see.
Stroke journal features women's studies on how gender influences stroke risk, treatment and outcomes
Many aspects of strokes affect women and men differently, and four articles in the American Heart Association's journal Stroke highlight recent research and identify future research needs.
Too few with stroke of the eye are treated to reduce future stroke
Only one-third of 5,600 patients with retinal infarction, or stroke in the eye, underwent basic stroke work-up, and fewer than one in 10 were seen by a neurologist.
More Stroke News and Stroke Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: Reinvention
Change is hard, but it's also an opportunity to discover and reimagine what you thought you knew. From our economy, to music, to even ourselves–this hour TED speakers explore the power of reinvention. Guests include OK Go lead singer Damian Kulash Jr., former college gymnastics coach Valorie Kondos Field, Stockton Mayor Michael Tubbs, and entrepreneur Nick Hanauer.
Now Playing: Science for the People

#562 Superbug to Bedside
By now we're all good and scared about antibiotic resistance, one of the many things coming to get us all. But there's good news, sort of. News antibiotics are coming out! How do they get tested? What does that kind of a trial look like and how does it happen? Host Bethany Brookeshire talks with Matt McCarthy, author of "Superbugs: The Race to Stop an Epidemic", about the ins and outs of testing a new antibiotic in the hospital.
Now Playing: Radiolab

Dispatch 6: Strange Times
Covid has disrupted the most basic routines of our days and nights. But in the middle of a conversation about how to fight the virus, we find a place impervious to the stalled plans and frenetic demands of the outside world. It's a very different kind of front line, where urgent work means moving slow, and time is marked out in tiny pre-planned steps. Then, on a walk through the woods, we consider how the tempo of our lives affects our minds and discover how the beats of biology shape our bodies. This episode was produced with help from Molly Webster and Tracie Hunte. Support Radiolab today at Radiolab.org/donate.