Research Article: Impact of stress hyperglycemia mediating tissue-level collaterals on futile recanalization in large vessel occlusion patients
Abstract:
The stress hyperglycemia ratio (SHR) is associated with unfavorable functional outcomes in patients with large vessel occlusion. The potential effect of SHR on tissue-level collaterals (TLC) and futile recanalization is not clear.
This is a multicenter retrospective cohort study of patients with consecutive acute ischemic stroke due to large vessel occlusion (AIS-LVO) receiving endovascular treatment (EVT). The included patients had baseline glucose/HbA1c measurements and underwent cerebral perfusion imaging. TLC were measured using the hypoperfusion intensity ratio (HIR) [the volume ratio of brain tissue with ( T max > 10 s/ T max > 6 s)]. SHR was calculated as blood glucose (mmol/L)/[1.59 × HbA1C (%) ? 2.59]. Using multivariable regression and mediation analyses, we determined the association among SHR, the TLC status, and futile recanalization (90-day modified Rankin Scale scores 3–6 despite successful recanalization).
A total of 246 patients met the inclusion criteria. Patients in the highest tertile of SHR were significantly more likely to suffer futile recanalization compared with those in the lowest tertile [adjusted OR (aOR) = 3.56, 95%CI = 1.73–7.30, p < 0.001]. The TLC (aOR = 3.38, 95%CI = 1.23–9.27, p = 0.018) was worse in patients with elevated SHR and also acted as an independent predictor of futile recanalization (aOR = 2.31, 95%CI = 1.32–4.05, p = 0.003). Mediation analyses showed that the increased SHR was associated with worse TLC, accounting for 9.7% (95%CI = 1.9%–28.0%) of the harmful effect on futile recanalization. Mediation analyses also indicated a partial mediation effect of the baseline larger ischemic core (effect value = 13.5%, 95%CI = 3.1%–32.0%).
An increased SHR is correlated with unfavorable TLC and is associated with futile recanalization after EVT. Future prospective studies should independently validate our findings.
Introduction:
The stress hyperglycemia ratio (SHR) is associated with unfavorable functional outcomes in patients with large vessel occlusion. The potential effect of SHR on tissue-level collaterals (TLC) and futile recanalization is not clear.
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