EXPRESS: DECOMPRESSIVE SURGERY IN PATIENTS WITH MALIGNANT MIDDLE CEREBRAL ARTERY INFARCTION:
A RANDOMIZED, CONTROLLED TRIAL IN A TURKISH POPULATION (DEMITUR TRIAL)
Background - Decompressive surgery (hemicraniectomy) for large hemispheric stroke reduces the risk of death and increases the chance of a favorable outcome. We aim to evaluate the outcome in patients up to 80 years of age with space-occupying hemispheric infarction treated with surgical decompression compared to medical therapy alone. Methods - This trial is a prospective, randomized, controlled, clinical trial based on a stroke center. The primary end point was survival with slight or moderate disability 12 months after randomization (defined by a score of 0 to 3 on the modified Rankin scale (mRS), which ranges from 0 [no symptoms] to 6 [death]). Secondary outcomes included death, Barthel Index, National Institute of Health Stroke Scale, and Stroke Impact Scale 2.0 (SIS) at 6 months and 1-year after randomization. The variables for subgroup analysis were age, sex, presence of aphasia and neglect. Results - We randomly allocated 151 patients aged 41 years or older (median, 65 years; range, 41 to 79) with large hemispheric stroke to either conservative medical treatment or hemicraniectomy; the assignment was made within 12 to 38 hours after the onset of symptoms. A statistically significant reduction in mortality was achieved after 30 days in the surgery group compared to the medical treatment group. Fifty-five of 70 (79%) patients randomized to surgery versus 26 of 81 (32%) patients randomized to medical treatment survived (P=0.001). Of 151 patients randomized, the proportion of patients with a mRS score â¤3 at the 6-months and 1-year follow-up was 48% and 64%, respectively, in the surgery group compared to medical treatment group, 14% and 20%, respectively (P=0.001 and P=0.001, respectively). There was a 47% absolute risk reduction of death after surgery compared to medical treatment at 1-year after stroke (P=0.001). Activities of daily living (58.8+16.1 vs 50.9+15.2; P=0.04), strength (20.2+9.2 vs 15.3+7.2; P=0.020), hand function (1.2+0.7 vs 0.8+0.6; P=0.022), memory (71.9+14.9 vs 59.2+18.5; P=0.001), and communication (62+17.7 vs 51.9+17.6; P=0.019) assessed by the SIS, were better in the surgical group than in the medical treatment group 1-year after stroke. Conclusions - This study showed that surgery in 48 hours increased survival and reduced mortality in life-threatening massive cerebral infarction. Early hemicraniectomy is a beneficial procedure in patients with large hemispheric infarction up to 80 years of age regardless of hemisphere dominance and improves daily life/ instrumental activities compared to medical therapy.