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news.The common use of anti-inflammatory steroids for traumatic head injuries may actually increase the risk of death, according to a new review of studies about the treatment.
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A previous review found there was not enough evidence to recommend that routine use of steroids be stopped. This newer analysis, published by the British-based Cochrane Library, draws heavily from a recent study of corticosteroid treatment for brain injury, including coma and concussion, which included 10,008 patients, more than all similar studies combined.
The study found that patients treated with corticosteroids were 18% more likely to die from their brain injury than those who did not take the drugs. Among the patients who received steroid treatment, 21% of the 4,985 treated died, compared to 18% who received a placebo.
“The significant increase in death with steroids found in this trial suggests that steroids should no longer be routinely used in people with traumatic head injury,” says Dr Phil Alderson, lead author of the Cochrane study.
Corticosteroids are anti-inflammatory hormones used to treat all kinds of inflammation, from joint injury to asthma. They differ from anabolic steroids, the sex hormones like androgen, which are typically used to increase muscle mass and improve athletic performance.
Corticosteroids are “widely used in medicine to treat inflammation,” Alderson explains. “It is thought that some of the damage after a brain injury results from inflammation following the initial injury and that reducing inflammation might reduce this secondary injury.”
In the case of severe head injuries, the inflammation leads to swelling of the brain and its surrounding tissues, which in turns creates pressure in the skull that may lead to complications or death.
The 17 studies on steroid use and the risk of death examined by Alderson and colleagues included a total of 12,083 patients of all ages with clinically diagnosed traumatic brain injury, some of whom received steroid treatment within seven days of their injury.
The cause of death in patients who received steroid treatment in the new large trial was unclear, according the study’s authors. Some researchers have suggested that corticosteroids increase the likelihood of death by interfering with adrenal gland function.