Abstract
Stent-assisted coil embolization (SACE) is used to address wide-necked or complex aneurysms. However, periprocedural and/or late in-stent thrombosis (IST) elicit neurological events. We investigated the incidence and timed the development of acute IST during SACE with braided- or laser-cut stents in a retrospective study. Between May 2013 and April 2018, we evaluated 11 ISTs that occurred in the course of 185 SACE procedures (self-expandable laser-cut stent, n = 128; braided stent, n = 57). The onset of IST was measured from the time of stent placement. All 11 patients with IST were treated with anticoagulants and underwent hypertension induction. Post-procedural neurological events due to IST were also recorded. The implantation of a laser-cut stent elicited IST in 5 of 128 patients (3.9%); braided stent placements resulted in IST in 6 of 57 patients (10.5%) (P = 0.1). The mean stent diameter was significantly smaller in patients with-IST than without IST (3.0 ± 0.9 mm vs. 4.5 ± 0.7 mm, P = 0.007). The mean interval between stent placement and IST onset was 19 ± 7.7 min; it was significantly earlier for braided- than laser-cut stents (17.5 ± 4.1 min vs. 29.0 ± 4.8 min, P = 0.006). All ISTs were resolved during the procedure. T...Continue Reading
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