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Does deep TMS really works for smoking cessation? A prospective, double blind, randomized, sham controlled study
Bianca B Bellini1, Jaqueline R Scholz2, Tania O Abe2
1Department of Preventive Medicine- Smoking Cessation Program, Incor (Heart Institute), Clinical Hospital, University of Sao Paulo, Sao Paulo, Brazil; Neurology Department of Clinical Hospital, University of Sao Paulo, Sao Paulo, Brazil.
Introduction:
A substantial proportion of smokers wishing to quit do not stop smoking when using current therapies to aid cessation. Magnetic pulses to specific brain areas designated as transcranial magnetic stimulation may modulate brain activity and thereby change chemical dependencies. Deep transcranial magnetic stimulation (dTMS) with the H4 coil stimulates neuronal pathways in the lateral prefrontal cortex and insula bilaterally, areas involved in tobacco addiction.
Objective:
To evaluate the efficacy and safety of dTMS with T4 coil in smoking cessation.
Methods:
In a double blind, controlled clinical trial, adult smokers of at least 10 cigarettes/day were randomized to active (n = 50) versus sham dTMS (n = 50). The protocol involved up to 21 sessions administered over up to 12 weeks. Tobacco use was monitored by self-report and confirmed by expired air monoximetry (at each dTMS visit) and blood cotinine (at the screening visit and at the end of sessions). Participants completed abstinence, mood and cognition scales at determined timepoints during follow-up.
Results:
In the intention to-treat-analysis, the cessation rate of the intervention and control groups was 14.0%. The reported side effects were as expected for this procedure. Although there were no serious adverse events, three participants were withdrawn according to safety criteria.
Conclusion:
Active treatment with dTMS H4 coil was safe but not effective for smoking cessation.
