Edinburgh Research Explorer

Combined blood and brain tests predict repeat stroke risk

Press/Media: Research

Description

A blood test and a brain scan could help people at risk of one of the deadliest forms of strokes.

Scientists have found combining the two tests for patients who have suffered a stroke could help predict the chances of them experiencing a second stroke.

Experts said the new approach could revolutionise the way doctors manage strokes caused by brain bleeding, known as intracerebral haemorrhage (ICH).

ICH accounts for up to 50% of all strokes worldwide.

About half of those affected die within one year.

Researchers used the blood test and brain scan images to detect a condition known as cerebral amyloid angiopathy (CAA), which is caused by a build-up of a protein known as amyloid in the walls of blood vessels in the brain.

CAA can cause ICH and is linked to a higher risk of further strokes and dementia.

Edinburgh University researchers used computed tomography (CT) scans in more than 100 patients who died following their first ICH.

Developing countries

They collected blood samples to test a gene called APOE, which is linked to CAA.

By combining simple CT scan images with a genetic blood test, researchers could accurately spot if an ICH had been caused by CAA.

Dr Mark Rodrigues, Wellcome Trust Clinical PhD Programme Fellow at the University of Edinburgh, said: "Identifying the cause of a brain haemorrhage is important to planning patient care.

"Our findings suggest that the combination of routine CT scanning with APOE gene testing can identify those whose ICH has been caused by CAA - a group who may be more at risk of another ICH or dementia."

This new approach could help identify people who are at higher risk after their ICH, scientists say.

It could also improve ICH diagnosis in developing countries as CT scanning and blood testing is available worldwide.

The study is published in Lancet Neurology and was funded by the Medical Research Council, Stroke Association and Wellcome Trust.

Period11 Jan 2018 → 23 Jan 2018

A blood test and a brain scan could help people at risk of one of the deadliest forms of strokes.

Scientists have found combining the two tests for patients who have suffered a stroke could help predict the chances of them experiencing a second stroke.

Experts said the new approach could revolutionise the way doctors manage strokes caused by brain bleeding, known as intracerebral haemorrhage (ICH).

ICH accounts for up to 50% of all strokes worldwide.

About half of those affected die within one year.

Researchers used the blood test and brain scan images to detect a condition known as cerebral amyloid angiopathy (CAA), which is caused by a build-up of a protein known as amyloid in the walls of blood vessels in the brain.

CAA can cause ICH and is linked to a higher risk of further strokes and dementia.

Edinburgh University researchers used computed tomography (CT) scans in more than 100 patients who died following their first ICH.

Developing countries

They collected blood samples to test a gene called APOE, which is linked to CAA.

By combining simple CT scan images with a genetic blood test, researchers could accurately spot if an ICH had been caused by CAA.

Dr Mark Rodrigues, Wellcome Trust Clinical PhD Programme Fellow at the University of Edinburgh, said: "Identifying the cause of a brain haemorrhage is important to planning patient care.

"Our findings suggest that the combination of routine CT scanning with APOE gene testing can identify those whose ICH has been caused by CAA - a group who may be more at risk of another ICH or dementia."

This new approach could help identify people who are at higher risk after their ICH, scientists say.

It could also improve ICH diagnosis in developing countries as CT scanning and blood testing is available worldwide.

The study is published in Lancet Neurology and was funded by the Medical Research Council, Stroke Association and Wellcome Trust.

References

TitleNew blood test may stop deadly stroke
Media name/outletDaily Mail
Date of coverage23/01/18
TitleSimple test to detect cause of worst strokes
Media name/outletDaily Press
Date of coverage15/01/18
TitleStroke test breakthrough
Media name/outletDaily Record
Date of coverage15/01/18
TitleTest clue over strokes
Media name/outletEdinburgh Evening News
Date of coverage11/01/18
Title2 test bid to beat srtoke
Media name/outletDaily Record
Date of coverage11/01/18
TitleNew test might help combat fatal strokes
Media name/outletThe Herald
Date of coverage11/01/18
TitleBlood test could identify stroke risk
Media name/outletYorkshire Post
Date of coverage11/01/18
TitleBreakthrough in working out stroke causes
Media name/outletThe Courier
Date of coverage11/01/18
TitleStroke test breakthrough
Media name/outletThe Press and Journal
Date of coverage11/01/18
TitleCombined blood and brain tests predict repeat stroke risk
Date of coverage11/01/18
URLView reference

ID: 51416661