Comparison of the predictive value of upper limb somatosensory evoked potentials and motor evoked potentials for functional recovery in subacute stroke: a retrospective study.
Jungwoo Shim, Changju Kim
PMID 41804271WHAT IT FOUND
In subacute stroke, normal somatosensory evoked potentials predicted better daily living independence, while motor evoked potentials predicted better hand dexterity.
Neither test strongly predicted upper limb motor recovery. Baseline function and length of stay were the strongest predictors of discharge outcomes.
Key findings
01Normal SEP status predicted significantly greater gains in daily living independence (FIM and K-MBI) compared to non-responsive SEP, but did not significantly predict upper limb motor recovery (FMA-U/L) or manual dexterity (BBT).
02Normal MEP status predicted significantly greater improvement in manual dexterity (BBT), and both abnormal and normal MEP status predicted better daily living independence (K-MBI), compared to non-responsive MEP.
03Baseline functional scores were consistent and significant predictors of discharge outcomes across all models, while the effect sizes for SEP and MEP status were generally small to moderate.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
Retrospective design prevents causal conclusions. Combined predictive value and interaction effects of SEP and MEP were not assessed. Important clinical factors like lesion location, stroke severity, and rehabilitation intensity were not controlled. Effect sizes for SEP and MEP were small to moderate, indicating limited incremental prognostic value over baseline function. Patients with severe cognitive impairment (K-MMSE < 10) were excluded, limiting generalisability to those patients.
Declared interests
The authors have no conflicts of interest to declare.
The easy way to misread this
Do not interpret the significant associations between SEP/MEP status and ADL/dexterity outcomes as strong predictive tools. The effect sizes were small to moderate, and baseline functional scores were far more significant predictors of discharge outcomes. These tests offer incremental, not dominant, prognostic information.
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 →