• Katayoun Vahedi, Eric Vicaut, Joaquim Mateo, Annie Kurtz, Mikael Orabi, Jean-Pierre Guichard, Carole Boutron, Gregory Couvreur, François Rouanet, Emmanuel Touzé, Benoît Guillon, Alexandre Carpentier, Alain Yelnik, Bernard George, Didier Payen, Marie-Germaine Bousser, and DECIMAL Investigators.
• Service de Neurologie, Assistance Publique-Hôpitaux de Paris, Hôpital Lariboisière, Paris, France. katayoun.vahedi@lrb.aphp.fr
• Stroke. 2007 Sep 1;38(9):2506-17.

Background And PurposeThere is no effective medical treatment of malignant middle cerebral artery (MCA) infarction. The purpose of this clinical trial was to assess the efficacy of early decompressive craniectomy in patients with malignant MCA infarction.MethodsWe conducted in France a multicenter, randomized trial involving patients between 18 and 55 years of age with malignant MCA infarction to compare functional outcomes with or without decompressive craniectomy. A sequential, single-blind, triangular design was used to compare the rate of development of moderate disability (modified Rankin scale score < or =3) at 6 months' follow-up (primary outcome) between the 2 treatment groups.ResultsAfter randomization of 38 patients, the data safety monitoring committee recommended stopping the trial because of slow recruitment and organizing a pooled analysis of individual data from this trial and the 2 other ongoing European trials of decompressive craniectomy in malignant MCA infarction. Among the 38 patients randomized, the proportion of patients with a modified Rankin scale score < or =3 at the 6-month and 1-year follow-up was 25% and 50%, respectively, in the surgery group compared with 5.6% and 22.2%, respectively, in the no-surgery group (P=0.18 and P=0.10, respectively). There was a 52.8% absolute reduction of death after craniectomy compared with medical therapy only (P<0.0001).ConclusionsIn this trial, early decompressive craniectomy increased by more than half the number of patients with moderate disability and very significantly reduced (by more than half) the mortality rate compared with that after medical therapy.

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