Thursday, March 02, 2006

Quantifying Stroke Related Brain Damage

Time is brain--quantified. By Saver JL
"The phrase "time is brain" emphasizes that human nervous tissue is rapidly lost as stroke progresses and emergent evaluation and therapy are required. The average duration of nonlacunar stroke evolution is 10 hours (range 6 to 18 hours), and the average number of neurons in the human forebrain is 22 billion. In patients experiencing a typical large vessel acute ischemic stroke, 120 million neurons, 830 billion synapses, and 714 km (447 miles) of myelinated fibers are lost each hour. In each minute, 1.9 million neurons, 14 billion synapses, and 12 km (7.5 miles) of myelinated fibers are destroyed. Compared with the normal rate of neuron loss in brain aging, the ischemic brain ages 3.6 years each hour without treatment"
Reference-

1 comment:

asdfasdf said...

My medical ethics instructor would argue that I've lost millions of neurons by dosing off.

But in my defense, if I could cut back on the late nights blogging on research - I would have more energy than I'd know what to do with it; that or someone will think I was be having a manic epsiode.

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