In addition, most of the surviving patients could talk and some younger patients were able to walk with some assistance. The surgical technique was used as far back as the late 1800s, but fell out of favor until recent years because patients often suffered severe disabilities. The reason the surgery may now prove more effective is because it is performed more quickly after a stroke, rather than being considered an operation of last resort. Brain swelling usually takes three months or so to end, so the part of the skull that is removed is placed in the abdomen for safekeeping. The scalp and the hard inner membrane beneath the scalp are sewn together after surgery to protect the brain.
Patients typically wear a helmet as their brains heal.
The researchers will present their findings in Toronto at an annual meeting of the American Association of Neurological Surgeons. There are no tests for the disorder, but symptoms include the inability to walk or sleep, strange chest sensations and extreme listlessness. Anyone who spends time at such very high altitudes may want to talk with their doctor about taking vasodilators along with them on trips. All rights reserved. Click here to read the latest stories.