PMID- 30158353 OWN - NLM STAT- MEDLINE DCOM- 20190207 LR - 20190215 IS - 1349-8029 (Electronic) IS - 0470-8105 (Print) IS - 0470-8105 (Linking) VI - 58 IP - 10 DP - 2018 Oct 15 TI - Evaluation of Acute In-stent Thrombosis during Stent-assisted Coil Embolization of Unruptured Intracranial Aneurysms. PG - 435-441 LID - 10.2176/nmc.oa.2018-0131 [doi] AB - 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. Three patients experienced postoperative neurologic events. We recommend the meticulous and prolonged monitoring of images after stent placement because delayed intraoperative IST can occur especially when laser-cut stents are used. FAU - Nii, Kouhei AU - Nii K AD - Department of Neurosurgery, Fukuoka University Chikushi Hospital. FAU - Inoue, Ritsurou AU - Inoue R AD - Department of Neurosurgery, Fukuoka University Chikushi Hospital. FAU - Morinaga, Yusuke AU - Morinaga Y AD - Department of Neurosurgery, Fukuoka University Chikushi Hospital. FAU - Mitsutake, Takafumi AU - Mitsutake T AD - Department of Neurosurgery, Fukuoka University Chikushi Hospital. FAU - Hanada, Hayatsura AU - Hanada H AD - Department of Neurosurgery, Fukuoka University Chikushi Hospital. LA - eng PT - Journal Article DEP - 20180830 PL - Japan TA - Neurol Med Chir (Tokyo) JT - Neurologia medico-chirurgica JID - 0400775 SB - IM MH - Aged MH - Blood Vessel Prosthesis Implantation/*adverse effects MH - Embolization, Therapeutic/*adverse effects MH - Female MH - Graft Occlusion, Vascular/diagnosis/*etiology/therapy MH - Humans MH - Intracranial Aneurysm/*therapy MH - Male MH - Middle Aged MH - Retrospective Studies MH - Stents/*adverse effects MH - Thrombosis/diagnosis/*etiology/therapy PMC - PMC6186760 OTO - NOTNLM OT - complication OT - in-stent thrombosis OT - intracranial aneurysm OT - stent-assisted coil embolization COIS- Conflicts of Interest Disclosure The authors have no personal financial or institutional interest in any of the drugs, materials, or devices used in this study. All authors are members of The Japan Neurosurgical Society and all have registered self-reported COI Disclosure Statement Forms on-line. EDAT- 2018/08/31 06:00 MHDA- 2019/02/08 06:00 PMCR- 2018/10/01 CRDT- 2018/08/31 06:00 PHST- 2018/08/31 06:00 [pubmed] PHST- 2019/02/08 06:00 [medline] PHST- 2018/08/31 06:00 [entrez] PHST- 2018/10/01 00:00 [pmc-release] AID - nmc-58-435 [pii] AID - 10.2176/nmc.oa.2018-0131 [doi] PST - ppublish SO - Neurol Med Chir (Tokyo). 2018 Oct 15;58(10):435-441. doi: 10.2176/nmc.oa.2018-0131. Epub 2018 Aug 30.