Prevalence of Arm Weakness, Pre-Stroke Outcomes and Other Post-Stroke Impairments Using Routinely Collected Clinical Data on an Acute Stroke Unit.

All data came from one metropolitan tertiary hospital in Australia during the COVID-19 pandemic, so the percentages may not apply to rural, regional, or other countries. The study was descriptive and had no formal hypothesis testing, so it cannot show why upper limb weakness prevalence changed over time. 13 patients (1.6%) with confirmed stroke were excluded because the SAFE score was missing, often because they were discharged before assessment or could not follow commands. Communication impairments such as aphasia were not assessed, so the paper does not describe their prevalence. Other sensory impairments beyond light touch were not included, so the reported sensory impairment percentage may not capture all sensory problems. There was no follow-up after the 24 to 48 hour assessment, so it does not show recovery or long-term outcomes. The additional post-stroke impairments were selected because they were reported in over 40% of records, so less consistently reported impairments were omitted. Routinely collected data did not include post-stroke functional outcome measures, upper limb activity measures, or carer availability.

The authors declared no potential conflicts of interest. One author was supported by an Australian Government Research Training Program Scholarship. Another author was supported by a National Health and Medical Research Council Fellowship #2016420 and the Heart Foundation of Australia #106607.

Do not read the lower percentage of upper limb weakness compared with older studies as proof that thrombolysis or thrombectomy caused it. The study is descriptive, different measures and time points were used, and the authors say further research is needed.