A dipstick inserted into the brain can check its energy levels, just like checking oil levels in a car. The dipstick is already available and can save lives, according to some neuroscientists.
“The goal is to save brain tissue,” says Elham Rostami of the Karolinska Institute in Stockholm, Sweden.
Last month, Rostami and 47 others published guidelines about how and when to use the technique, known as brain microdialysis, in the hope of encouraging more hospitals to adopt it.
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