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  • Health
  • Anti-clot Drug Could Cut Stroke Risk Too

    By NE Reporter on May 23, 2018

    WASHINGTON:
    A drug to treat bleeding may benefit some stroke patients as well, according to a study. The research, led by experts at The University of Nottingham, found that giving tranexamic acid (TXA) to people who had experienced intracerebral haemorrhage reduced the number of deaths in the early days following the stroke.
    It also found that both the amount of bleeding in the brain and number of associated serious complications were lower in the patients who had received the TXA treatment. However, the trial found no difference in the number of people who were left disabled or had died at three months after their stroke (the study’s primary outcome). The researchers believe further study is needed on larger groups of patients to enable them to fully understand the potential benefits.
    Nikola Sprigg, who led the trial, said, “Tranexamic acid is cheap and widely available so has the potential for reducing death and disability across the world.”
    “While we failed to show significant benefits three months after stroke, the reduction in early deaths, amount of bleeding on the brain and serious complications are signs that this drug may be of benefit in the future. More trials are needed, particularly focusing on giving treatment as soon as possible after the start of bleeding in this emergency condition.
    “TICH-2 cements the position of the NIHR and the UK as key players in the world of stroke research. A study of this scale would simply not have been possible without support of the NIHR infrastructure. Alongside the large stroke centres, the contribution made by the network of smaller sites across the UK has been crucial to the success of TICH-2.”
    15 per cent of all strokes — affecting around 22,000 people every year — are caused by haemorrhagic stroke when a blood vessel in the brain bursts, leading to permanent damage. While all people with acute stroke benefit from treatment on a stroke unit, there is currently no specific treatment for haemorrhagic stroke and unfortunately many people affected will die within a few days. Those who do survive are often left with debilitating disabilities including paralysis and an inability to speak.
    The five-year TICH-2 trial recruited more than 2,000 patients from 124 hospitals in 12 countries between 2013 and 2017. They were randomly sorted into two patient groups – one received TXA within eight hours of their stroke and another was given a saline placebo. In the UK, more than 80 hospitals took part in the study with support from the NIHR clinical research network.
    CT scans of the patients’ brains were performed 24 hours after their stroke and their progress was monitored and measured at day two and day seven after their stroke. The final follow up was performed at 90 days.
    The study revealed that TXA did not improve the outcome for patients after 90 days as there was no significant difference in the number of patients who had subsequently died or had been left with disabilities between the TXA and placebo groups at three months.
    However, in the TXA group there were fewer deaths by day seven following the stroke and, at day two, fewer people on TXA experienced a worsening of the bleed on their brain and had smaller amounts of blood in the brain compared to their control group counterparts.
    Also, the number of patients who experienced associated serious complications (such as pneumonia and brain swelling) were lower in the patients who had received the TXA treatment compared to those who had control.
    The trial also found evidence that TXA might be more effective in patients with lower blood pressure as those with blood pressure lower than 170 mmHg had a more favourable outcome that those with 170mmHg and above.
    Other studies have confirmed that the sooner TXA is given, the more effective it is, and ideally it needs to be given within less than 3 hours of bleeding onset. In this study only one third of patients were given treatment within 3 hours of stroke onset.
    As a result, the researchers have highlighted the need for further studies to find out whether giving an earlier dose of TXA might be beneficial for patients.
    The study has been published in the journal The Lancet.
    (ANI)

    Iscea

    NE Reporter

    Anti-clot Drugintracerebral haemorrhageStroke Risktranexamic acidTXA treatmentUniversity of Nottingham

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