Cerebellar Theta-Burst Stimulation Combined With Physiotherapy in Subacute and Chronic Stroke Patients: A Pilot Randomized Controlled Trial

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Abstract
Background: Intermittent theta-burst stimulation (iTBS) has been suggested to improve poststroke rehabilitation. The cerebellum is considered crucial for motor control. However, the effects of cerebellar iTBS with routine physical therapy on balance and motor recovery in subacute and chronic stroke patients have not been explored. Objective: To measure the short-term effects of cerebellar iTBS with physiotherapy on the balance and functional outcomes in subacute and chronic stroke patients with hemiparesis. Methods: Thirty hemiparetic patients were recruited for this randomized, double-blinded, sham-controlled trial, and randomized into either the treatment or sham group. Both groups participated in physiotherapy 5 times per week for 2 weeks, and cerebellar iTBS or sham iTBS was performed daily, immediately before physiotherapy. The primary outcome was the Berg balance scale (BBS) score. Secondary outcomes included the trunk impairment scale (TIS) score, Fugl-Meyer assessment scale score for lower extremities (FMA-LE), Barthel index (BI), and corticospinal excitability, as measured by transcranial magnetic stimulation. The outcomes were measured before and 1 week and 2 weeks after the intervention. Results: Compared with those at baseline, significant increases were identified in all clinical scores (BBS, TIS, FMA-LE, and BI) in both groups after the 2-week intervention. The BBS and TIS scores improved more in the iTBS group than in the sham group. Conclusions: Cerebellar iTBS with physiotherapy promotes balance and motor recovery in poststroke patients. Therefore, this method can be used in low-cost, fast, and efficient protocols for stroke rehabilitation (Chinese Clinical Trial Registry: ChiCTR1900026450).
Funding Information
  • the 1·3·5 project for disciplines of excellence–Clinical Research Incubation Project, West China Hospital, Sichuan University (2020HXFH051)

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