Sleep quality improves during treatment with repetitive transcranial magnetic stimulation (rTMS) in patients with cocaine use disorder: a retrospective observational study.
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ABSTRACT: BACKGROUND:Sleep disturbance is a prominent and common complaint in people with cocaine use disorder (CUD), either during intake or withdrawal. Repetitive transcranial magnetic stimulation (rTMS) has shown promise as a treatment for CUD. Thus, we evaluated the relationship between self-perceived sleep quality and cocaine use pattern variables in outpatients with CUD undergoing an rTMS protocol targeted at the left dorsolateral prefrontal cortex. METHODS:This is a retrospective observational study including 87 patients diagnosed with CUD according to the DSM-5 criteria. Scores in Pittsburgh Sleep Quality Index (PSQI), Cocaine Craving Questionnaire (CCQ), Beck Depression Inventory-II (BDI-II), Self-rating Anxiety Scale (SAS), and Symptoms checklist 90-Revised (outcome used: Global Severity Index, GSI) were recorded at baseline, and after 5, 30, 60, and 90?days of rTMS treatment. Cocaine use was assessed by self-report and regular urine screens. RESULTS:Sleep disturbances (PSQI scores >?5) were common in patients at baseline (mean?± SD; PSQI score baseline: 9.24?±?3.89; PSQI >?5 in 88.5% of patients). PSQI scores significantly improved after rTMS treatment (PSQI score Day 90: 6.12?±?3.32). Significant and consistent improvements were also seen in craving and in negative-affect symptoms compared to baseline. Considering the lack of a control group, in order to help the conceptualization of the outcomes, we compared the results to a wait-list group (n?=?10). No significant improvements were observed in the wait-list group in any of the outcome measures. CONCLUSIONS:The present findings support the therapeutic role of rTMS interventions for reducing cocaine use and accompanying symptoms such as sleep disturbance and negative-affect symptoms. TRIAL REGISTRATION:ClinicalTrials.gov.NCT03733821.
SUBMITTER: Gomez Perez LJ
PROVIDER: S-EPMC7137315 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
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