Early Versus Late Initiation of Endovascular Therapy in Patients with Severe Cerebral Venous Sinus Thrombosis.

Bücke, Philipp; Henkes, Hans; Kaesmacher, Johannes; Heldner, Mirjam R; Scutelnic, Adrian; Arnold, Marcel; Meinel, Thomas R; Cimpoca, Alexandru; Horvath, Thomas; Henkes, Elina; Bäzner, Hansjörg; Hellstern, Victoria (2024). Early Versus Late Initiation of Endovascular Therapy in Patients with Severe Cerebral Venous Sinus Thrombosis. (In Press). Neurocritical care Springer 10.1007/s12028-024-02046-7

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BACKGROUND

Endovascular therapy (EVT) for severe cerebral venous sinus thrombosis (CVST) is controversial in terms of indication and clinical benefit. The impact of delay of EVT on functional recovery is unclear. This study aimed to investigate the effect of early versus late initiation of EVT in severe CVST.

METHODS

From prospective EVT and CVST registries, patients with CVST diagnosed between January 2010 and December 2022 were retrospectively identified for this multicenter collaboration. EVT was considered in severe CVST with features prone to a poor prognosis. We compared early (< 24 h) with late (> 24 h) initiation of EVT after the presentation in the emergency department and subsequent CVST diagnosis. Outcome parameters included functional independence (modified Rankin Scale [mRS] score 0-2) at 90 days, mRS score at discharge, in-hospital mortality, and mortality at 3 months.

RESULTS

Of 363 patients with CVST, 45 (12.4%; 31 [early EVT] vs. 14 [late EVT]) were included in this study. We found a higher proportion of patients with functional independence at 3 months among early versus late EVT (66.7% vs. 27.3%; odds ratio [OR] 5.3; 95% confidence interval 1.02-25; p = 0.036). In multivariate logistic regression, late EVT was inversely correlated with functional independence (OR 0.17 [0.04-0.83]; p = 0.011). The mortality rate was 16.7% versus 36.4% (mRS 6 at 3 months, OR 0.34, 95% confidence interval 0.07-1.75; p = 0.217) at 90 days for early versus late EVT.

CONCLUSIONS

We observed a higher rate of functional independence in patients with early EVT. These preliminary findings must be confirmed in subsequent randomized controlled trials evaluating a "time-is-brain" paradigm for EVT in CVST.

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