Faculty Bibliography

OBJECTIVES: Transcranial direct current stimulation (tDCS) has potential clinical application for symptomatic management in multiple sclerosis (MS). Repeated sessions are necessary in order to adequately evaluate a therapeutic effect. However, it is not feasible for many individuals with MS to visit clinic for treatment on a daily basis, and clinic delivery is also associated with substantial cost. We developed a research protocol to remotely supervise self- or proxy-administration for home delivery of tDCS using specially designed equipment and a telemedicine platform. MATERIALS AND METHODS: We targeted ten treatment sessions across two weeks. Twenty participants (n = 20) diagnosed with MS (any subtype), ages 30 to 69 years with a range of disability (Expanded Disability Status Scale or EDSS scores of 1.0 to 8.0) were enrolled to test the feasibility of the remotely supervised protocol. RESULTS: Protocol adherence exceeded what has been observed in studies with clinic-based treatment delivery, with all but one participant (95%) completing at least eight of the ten sessions. Across a total of 192 supervised treatment sessions, no session required discontinuation and no adverse events were reported. The most common side effects were itching/tingling at the electrode site. CONCLUSIONS: This remotely supervised tDCS protocol provides a method for safe and reliable delivery of tDCS for clinical studies in MS and expands patient access to tDCS.

The emotional and behavioral problems associated with pediatric multiple sclerosis remain unclear. Participants with pediatric multiple sclerosis or clinically isolated syndrome (n = 140; ages 5-18 years) completed self- and parent ratings using the Behavioral Assessment System for Children, Second Edition, neurologic exam, the Fatigue Severity Scale, and neuropsychological assessment. Mean self- and parent-ratings on the Behavioral Assessment System for Children, Second Edition, were in the typical range across all scales. However, 33.1% indicated a clinically significant problem on a least 1 scale. Although the type of clinical problems varied across participants, attention problems, somatization, and anxiety were found to be most common. Disease features including duration, age of onset, neurologic disability, and fatigue did not distinguish those with and without clinical problems. However, cognitive functioning significantly predicted the presence of a clinical problem (P = .02). Pediatric multiple sclerosis is associated with a range of nonspecific emotional and behavioral clinical problems, occurring more frequently in those patients with cognitive involvement.