Additional validation study and French cross-cultural adaptation of the Pediatric Stroke Outcome Measure–Summary of Impressions (PSOM-SOI)

•The Pediatric Stroke Outcome Measure-Summary of Impressions (PSOM-SOI) is an objective disease-specific measure of neurological recovery after pediatric stroke.•In clinical practice, the PSOM-SOI is scored directly from the neurological examination or a medical dictation without using the PSOM-Short Neurological Exam (SNE).•A dichotomized cut-off value of 0.5 could be used to define normal function versus poor outcome to distinguish children with or without activity limitation.•To improve the reliability of this scale, the PSOM-SOI score could be based on the standardized details of the PSOM-SNE and not on retrospective data analysis.