Thrombectomy in Young Adults with Embolic Stroke of Undetermined Source: Analysis of the Young ESUS study.

Lee, Sarah; Yuan, Fei; Garcia, Madelleine; MacLellan, Adam; Mlynash, Michael; Meseguer, Elena; Arnold, Marcel; Haeusler, Karl Georg; Sporns, Peter B; Perera, Kanjana S (2024). Thrombectomy in Young Adults with Embolic Stroke of Undetermined Source: Analysis of the Young ESUS study. Journal of stroke and cerebrovascular diseases, 33(8), p. 107811. Elsevier 10.1016/j.jstrokecerebrovasdis.2024.107811

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OBJECTIVES

Embolic Stroke of Undetermined Source (ESUS) is a distinct stroke entity that disproportionately affects young adults. We sought to describe characteristics, workup and outcomes of young adult ESUS patients who underwent thrombectomy, and compare outcomes to those reported in different age groups.

MATERIALS AND METHODS

Young-ESUS is a multicenter longitudinal cohort study that enrolled consecutive patients aged 21-50 years at 41 stroke centers in 13 countries between 2017- 2019. Between-group comparisons were performed using Wilcoxon rank sum test for continuous variables or Fisher's exact test for binary variables. Distribution of functional outcomes after thrombectomy for our young adult cohort versus pediatric and older adult cohorts reported in the literature were described using the Kruskal-Wallis test.

RESULTS

Of 535 patients enrolled in Young-ESUS, 65 (12.1%) were treated with endovascular thrombectomy. Patients who underwent thrombectomy were more likely to undergo in-depth cardiac testing than those who did not, but cardiac abnormalities were not detected more often in this group. Among thrombectomy patients, 35/63 (55.6%) had minimal to no functional disability at follow up. When adjusted for age, stroke severity and IV alteplase, the odds of achieving favorable outcome did not differ between treated versus untreated patients.

CONCLUSIONS

Thrombectomy is not rare in young adults with ESUS. Despite extensive workup, cardiac abnormalities were not more prevalent in the thrombectomy group. More research to determine optimal workup, etiologic factors and favorable outcome of stroke across the lifespan is needed.

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