Can a blood pressure cuff shield the brain after a severe stroke?

This trial tests whether a simple, non-invasive technique called remote ischemic preconditioning (RIPC) can reduce brain damage after an aneurysmal subarachnoid hemorrhage, a severe type of stroke. The procedure involves briefly inflating a blood pressure cuff on the leg to restrict blood flow, repeated every two days for about a week. Researchers will compare this to a sham procedure in 140 adult patients, measuring neurological disability at 3 months and longer-term outcomes at 12 months. If it works, RIPC could offer a low-cost way to improve recovery after this serious condition.