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Mechanical thrombectomy in acute ischemic stroke due to large vessel occlusion in the anterior circulation and low baseline National Institute of Health Stroke Scale score: a multicenter retrospective matched analysis.

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Title:	Mechanical thrombectomy in acute ischemic stroke due to large vessel occlusion in the anterior circulation and low baseline National Institute of Health Stroke Scale score: a multicenter retrospective matched analysis.
Authors:	Alexandre, Andrea Maria (AUTHOR), Valente, Iacopo (AUTHOR), Pedicelli, Alessandro (AUTHOR), Pezzullo, Angelo Maria (AUTHOR), Colò, Francesca (AUTHOR), Scarcia, Luca (AUTHOR), Romi, Andrea (AUTHOR), Piano, Mariangela (AUTHOR), Macera, Antonio (AUTHOR), Gabrieli, Joseph Domenico (AUTHOR), Cester, Giacomo (AUTHOR), Caragliano, Antonio Armando (AUTHOR), Vinci, Sergio Lucio (AUTHOR), Ruggiero, Maria (AUTHOR), Commodaro, Christian (AUTHOR), Saletti, Andrea (AUTHOR), Lazzarotti, Guido Andrea (AUTHOR), Cosottini, Mirco (AUTHOR), Da Ros, Valerio (AUTHOR), Bellini, Luigi (AUTHOR)
Source:	Neurological Sciences. May2022, Vol. 43 Issue 5, p3105-3112. 8p. 2 Diagrams, 2 Charts.
Abstract:	Background and Purpose: The benefit of mechanical thrombectomy (MT) in patients with acute ischemic stroke (AIS) due to large vessel occlusion (LVO) and baseline mild neurological symptoms remains unclear. The purpose of this study was to evaluate the effectiveness of MT in this subgroup of patients.Methods: The databases of 9 high-volume Italian stroke centers were retrospectively screened for patients with LVO in the anterior circulation and a baseline National Institute of Health Stroke Scale (NIHSS) score ≤ 5 that received either immediate MT or best medical management (BMM) with the possibility of rescue MT upon neurological worsening. Primary outcome measure was a modified Rankin Scale score of 0-1 at 90 days. Propensity score matching (PSM) analysis was used to estimate the treatment effect of immediate MT compared to BMM/rescue MT.Results: Two hundred and seventy-two patients received immediate MT (MT group). The BMM/rescue MT group included 41 patients. The primary outcome was achieved in 78.6% (n = 246) of overall patients, with a higher proportion in the MT group (80.5% vs. 65.9%, p = 0.03) in unadjusted analysis. After PSM, patients in the MT group had a 19.5% higher chance of excellent outcome at 90 days compared to the BMM/Rescue MT group with a similar risk of death from any cause.Conclusions: Our experience is in favor of a potential benefit of MT also in patients with LVO and a NIHSS score ≤ 5 at the time of groin puncture. Nonetheless, this issue waits for a clear-cut recommendation in a dedicated clinical trial. [ABSTRACT FROM AUTHOR]
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Database:	Psychology and Behavioral Sciences Collection
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