The impact of 'cluster maintenance TMS' on irritability occurring in major depressive disorder.

OBJECTIVE: To determine the impact of clustered maintenance transcranial magnetic stimulation (TMS) on irritability occurring in treatment-resistant major depressive disorder (MDD). METHOD: A naturalistic study of 106 courses that includes pre- and posttreatment assessments of subjective and objective depression and a subjective measure of irritability developed for this study. RESULTS: Forty-six participants (35 females), mean age 43.2 years (14.3), completed 106 courses. There was a significant reduction in irritability and depression scores (p < .001). The change in irritability scores was significantly correlated with the change in depression scores, r = .40, p < .001. CONCLUSION: TMS has the capacity to reduce the irritability co-occurring with treatment-resistant MDD, known to be responsive to TMS. This increases the possibility of using TMS in the treatment of irritability co-occurring with other disorders or standing alone (should irritability be categorized as a stand-alone disorder).

Second Courses of Transcranial Magnetic Stimulation (TMS) in Major Depressive Episodes for Initial Responders and Non-Responders.

BACKGROUND: Transcranial Magnetic Stimulation (TMS) is effective in major depressive episodes (MDE). However, MDE may follow a chronic, relapsing course, and some individuals may not satisfactorily respond to a first course of TMS. OBJECTIVE: To investigate the outcome of second courses of TMS. METHOD: A naturalistic investigation-we prospectively studied 30 MDE in-patients and routinely collected information, including pre- and post-treatment with Six-item Hamilton Depression Rating Scale (HAMD6), a six-item Visual Analogue Scale (VAS6) and the Clinical Global Impression-Severity (CGI-S). Two categories of patients were considered: i) those who had remitted with a first course, but relapsed, and ii) those who had not remitted with the first course. RESULTS: Thirty individuals received a second TMS course. The mean time to the second course was 27.5 weeks. Based on the HAMD6, 26 (87%) achieved remission after the first course, and 22 (73%) achieved remission after the second course. Furthermore, based on the HAMD6 results, of the four patients who did not achieve remission with a first course, three (75%) did so with a second course. CONCLUSION: In MDE, a second course of TMS is likely to help those who remitted to a first course and then relapsed, as well as those who did not achieve remission with a first course.

Early relapse (ER) transcranial magnetic stimulation (TMS) in treatment resistant major depression.

BACKGROUND: There is interest in using TMS to keep patients with severe relapsing depression as well as possible, once remission has been achieved. This has been conceptualized as 'maintaining' the remission. One protocol employs series of 5 TMS sessions over 3 or 5 days, at about monthly intervals. We have suggested this practice is better conceptualized as early relapse (ER) TMS. AIM: To determine whether 5 TMS sessions at about monthly intervals are effective in keeping patients relatively well, and whether the concept of ER-TMS can be supported. METHOD: Prospective, naturalistic, 10-month study, administering pre- and post-TMS series, HAMD6, visual analogue scale for mood, and CGI-S. RESULTS: Thirty-nine patients (72% female) received 168 series of 5 TMS sessions and remained in the program for 21 weeks on average. Pre-post-treatment scores showed significant reductions on all measures. Post-series HAMD6 score 3.30 (2.28) indicates remission has been achieved. Pre-series scores of 6.24 (2.78) indicate a post-series decline in mood, in the direction of relapse. Before TMS series 70% were no longer in remission (being in partial remission or relapse), and after TMS series, 79% were in remission. CONCLUSION: In severe relapsing depression, monthly series of TMS move mood from the relapse/partial remission range in the direction or remission and is appropriately termed early relapse ER-TMS. Long-term availability of ER-TMS to patients with severe relapsing depression deserves consideration.