Surgery: Wired for Health

Physicians and surgeons have long used innumerable electrical gadgets in diagnosis and treatment, but they have usually kept the current outside the patient's body. Now they are developing new and daring ways to use electricity inside the body—and, in some cases, to make the electrical gadget a permanent implant with rechargeable batteries.

For Brain Hemorrhages. A weak electrical current, suggests Irish-born Dr. Sean F. Mullan of the University of Chicago, may be the answer to an age-old problem: how to stop bleeding in a brain artery. These hemorrhages, usually at a spot where a cerebral artery has ballooned out and...

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