Imagine waking up unable to move one side of your body because a major artery in your brain is blocked. This is an acute ischemic stroke. A critical question for doctors and families is how fast to act. This large review looked at patients who had this specific type of stroke caused by a large blockage. It compared those who received endovascular thrombectomy, a surgery to physically remove the clot, within six hours of symptoms versus those treated later, between six and 24 hours.
The analysis showed clear benefits for the faster group. People treated early had a significantly lower rate of death over 90 days. They were also more likely to regain their independence, meaning they could care for themselves without help. The review also checked for a serious risk: bleeding inside the brain. The data showed no significant difference in this danger between the early and late groups.
Despite these positive signs, the evidence has some important limits. The studies included were very different from one another, creating moderate to high variation in the results. This means we cannot be certain exactly how every single patient will respond. While the findings strongly suggest that minimizing treatment delays is vital, they do not replace the need for careful, individualized medical decisions.