Older adults who avoid surgery because they fear general anesthesia will cause thinking declines need not worry, researchers report.
surgery at four hospitals in Canada found that the amount of anesthesia used did not affect the risk of delirium after surgery. Post-surgery delirium may contribute to cognitive decline.
The new study adds to other "compelling" evidence that higher doses are not toxic to the brain, he added in a university news release. Though it is usually short-lived, this delirium has been linked to longer stays in intensive care, persistent thinking declines and a higher risk of premature death. Both had similar rates of delirium -- about 18% -- in the first five days after surgery. They had similar complication rates, length of hospital stays and risk of premature death for a year after surgery.
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