Functional Outcomes of Patients with Severe MCA Infarction after Decompressive Craniectomy

Kyeong-Woo LEE; Sang-Beom KIM; Jong-Hwa LEE; Min-Ah KIM; Jae-Won RI; Jin-Gee PARK

OBJECTIVE:

To compare the functional outcomes between surgical treatment and conservative medical treatment for severe middle cerebral artery (MCA) infarction.

METHOD:

This is comparative analysis of prospectively documented data with 25 patients have malignant MCA infarction. Ten patients in Group A (male 7, female 3) received surgical treatment such as decompressive craniectomy, and fifteen patients in Group B (male 10, female 5) received conservative medical treatment. We defined MCA infarction as "severe" when it concerned both the deep and superficial areas of the MCA or when the Functional Independence Measure (FIM) was lower to 75 on admission to our department. Functional status was measured using modified Rankin Scale (mRS), FIM, Motricity Index (MI) and Trunk Control Test (TCT). All evaluations were measured at baseline and 90 days after stroke.

RESULTS:

Mean age were 55.0 +/- 8.6 and 58.7 +/- 12.3 in Group A and B. Rt. MCA infarction were 4 in Group A and 5 in Group B. Lt. MCA infarction were 5 in Group A and 10 in Group B. Baseline functional status between two groups was not significantly different. Each group showed functional improvement according to the time. When compared changes between two groups, arm Motricity Index, K-MMSE, mRS and FIM were no significant difference between two groups. Leg segments of MI and TCT was significantly improved in Group A more than B at 90 days after baseline evaluation (p<0.05).

CONCLUSION:

Decompressive craniectomy improved motor function of affected leg and trunk in patients with severe MCA infarction more than conservative medical treatment alone.

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