• Andres M Lozano, Peter Giacobbe, Clement Hamani, Sakina J Rizvi, Sidney H Kennedy, Theodore T Kolivakis, Guy Debonnel, Abbas F Sadikot, Raymond W Lam, Andrew K Howard, Magda Ilcewicz-Klimek, Christopher R Honey, and Helen S Mayberg.
• Division of Neurosurgery, University of Toronto, Canada. lozano@uhnresearch.ca
• J. Neurosurg. 2012 Feb 1; 116 (2): 315-22.

ObjectDeep brain stimulation (DBS) has been recently investigated as a treatment for major depression. One of the proposed targets for this application is the subcallosal cingulate gyrus (SCG). To date, promising results after SCG DBS have been reported by a single center. In the present study the authors investigated whether these findings may be replicated at different institutions. They conducted a 3-center prospective open-label trial of SCG DBS for 12 months in patients with treatment-resistant depression.MethodsTwenty-one patients underwent implantation of bilateral SCG electrodes. The authors examined the reduction in Hamilton Rating Scale for Depression (HRSD-17) score from baseline (RESP50).ResultsPatients treated with SCG DBS had an RESP50 of 57% at 1 month, 48% at 6 months, and 29% at 12 months. The response rate after 12 months of DBS, however, increased to 62% when defined as a reduction in the baseline HRSD-17 of 40% or more. Reductions in depressive symptomatology were associated with amelioration in disease severity in patients who responded to surgery.ConclusionsOverall, findings from this study corroborate the results of previous reports showing that outcome of SCG DBS may be replicated across centers.

25 keywords...

hide…