Safety and neuromodulation effect of transcranial focused ultrasound for motor recovery in patients with subacute stroke.
Meng-Ting Lin, Shao-Yu Chen, Pin-Hua Lai and 10 others
PMID 41845437WHAT IT FOUND
Ten patients with subacute stroke received transcranial focused ultrasound and showed no serious adverse events.
Motor scores improved significantly, and a comparison with rTMS patients showed larger gains, but the study lacked a control group and cannot prove the ultrasound caused the recovery.
Key findings
01The treatment was safe in this small group, with no severe adverse events or new brain abnormalities on imaging.
02Motor function scores improved significantly from baseline to three months post-treatment.
03Patients treated with ultrasound showed greater motor improvement than a matched group of patients treated with rTMS.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study had no control group, so it is impossible to know if the motor improvements were due to the ultrasound, natural recovery, or standard therapy. The sample size was very small (ten patients), which limits the reliability of the safety and efficacy findings. The comparison with rTMS patients was retrospective and not randomly assigned, introducing potential bias. The study was conducted at a single center, limiting generalizability.
Declared interests
The study was funded by the National Science and Technology Council and National Taiwan University Hospital. No commercial conflicts of interest were declared.
The easy way to misread this
Do not interpret the significant motor score improvements as proof that transcranial focused ultrasound works. Without a control group, these gains could simply reflect natural recovery or the effects of standard rehabilitation.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →