For 6-24 hour thrombectomy, what is the permissible pre-stroke mRS?

For 6-24 hour thrombectomy, what is the permissible pre-stroke mRS?

• A. 0-1
• B. 2-3
• C. 4-5
• D. 6

Answer: (A)

In the 6-24 hour thrombectomy setting, the key idea is that eligibility relies on how independently the patient was functioning before the stroke. The aim is to maximize the chance of returning to independence after reperfusion, so trials and guidelines limit participation to those with little or no pre-stroke disability. The pre-stroke modified Rankin Scale measures this baseline function, with a score of 0 meaning no symptoms and 1 indicating no significant disability despite symptoms. A higher score shows greater preexisting disability, which reduces the likelihood of meaningful recovery after thrombectomy in this extended window. Therefore, the permissible pre-stroke mRS is 0-1, reflecting a baseline independence before the stroke.

In the 6-24 hour thrombectomy setting, the key idea is that eligibility relies on how independently the patient was functioning before the stroke. The aim is to maximize the chance of returning to independence after reperfusion, so trials and guidelines limit participation to those with little or no pre-stroke disability. The pre-stroke modified Rankin Scale measures this baseline function, with a score of 0 meaning no symptoms and 1 indicating no significant disability despite symptoms. A higher score shows greater preexisting disability, which reduces the likelihood of meaningful recovery after thrombectomy in this extended window. Therefore, the permissible pre-stroke mRS is 0-1, reflecting a baseline independence before the stroke.