Long-term Durability of Coil Embolization for Unruptured Aneurysm after Introduction of the Neck-bridge Stent: Comparison between the Pre-stent Era and the Stent Era
More complex aneurysms can be treated by coil embolization with neck-bridge stent assistance. However, concerns about postprocedural ischemic or hemorrhagic complications remain. In this study, we assessed the long-term durability after introduction of neck-bridge stent in the context of coil emboli...
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| Veröffentlicht in: | Neurologia medico-chirurgica 2021, Vol.61(3), pp.204-210 |
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| creator | HOSOO, Hisayuki TSURUTA, Wataro KATSUMATA, Masahiro ISHIGAMI, Daiichiro ISHIKAWA, Eiichi MATSUMARU, Yuji MATSUMURA, Akira |
| description | More complex aneurysms can be treated by coil embolization with neck-bridge stent assistance. However, concerns about postprocedural ischemic or hemorrhagic complications remain. In this study, we assessed the long-term durability after introduction of neck-bridge stent in the context of coil embolization for unruptured aneurysm by comparing re-treatment and neurological events between the pre-stent and stent eras. Unruptured aneurysms treated by coil embolization between April 2005 and May 2018 were analyzed retrospectively. We divided cases into two groups: the pre-stent era and the stent era. The cumulative rate of re-treatment and neurological events were assessed and compared. During the period, 177 aneurysms were treated in the pre-stent era and 354 aneurysms were treated in the stent era. The median follow-up was 55 months. In the stent era, the dome/neck (D/N) ratio was significantly lower (P |
| doi_str_mv | 10.2176/nmc.oa.2020-0221 |
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However, concerns about postprocedural ischemic or hemorrhagic complications remain. In this study, we assessed the long-term durability after introduction of neck-bridge stent in the context of coil embolization for unruptured aneurysm by comparing re-treatment and neurological events between the pre-stent and stent eras. Unruptured aneurysms treated by coil embolization between April 2005 and May 2018 were analyzed retrospectively. We divided cases into two groups: the pre-stent era and the stent era. The cumulative rate of re-treatment and neurological events were assessed and compared. During the period, 177 aneurysms were treated in the pre-stent era and 354 aneurysms were treated in the stent era. The median follow-up was 55 months. In the stent era, the dome/neck (D/N) ratio was significantly lower (P <0.001) and the number of aneurysms located at the posterior circulation was higher (P <0.001). A stent was used in 31.92% of cases in the stent era. The cumulative rate of re-treatment was significantly higher in the pre-stent era than it was in the stent era in univariate and multivariate analyses (P = 0.008, P = 0.008, respectively). The cumulative rate of neurological events was not significantly different between the two groups. The re-treatment rate has been improved without increasing neurological complications after introduction of the neck-bridge stent.</description><identifier>ISSN: 0470-8105</identifier><identifier>EISSN: 1349-8029</identifier><identifier>DOI: 10.2176/nmc.oa.2020-0221</identifier><identifier>PMID: 33504732</identifier><language>eng</language><publisher>Japan: The Japan Neurosurgical Society</publisher><subject>Aneurysm ; Aneurysms ; cerebral aneurysm ; coil embolization ; Embolization ; Endovascular coiling ; Hemorrhage ; Implants ; Ischemia ; Neck ; neck-bridge stent ; Neurological complications ; Original</subject><ispartof>Neurologia medico-chirurgica, 2021, Vol.61(3), pp.204-210</ispartof><rights>2021 The Japan Neurosurgical Society</rights><rights>2021. This work is published under https://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). 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Med. Chir.(Tokyo)</addtitle><description>More complex aneurysms can be treated by coil embolization with neck-bridge stent assistance. However, concerns about postprocedural ischemic or hemorrhagic complications remain. In this study, we assessed the long-term durability after introduction of neck-bridge stent in the context of coil embolization for unruptured aneurysm by comparing re-treatment and neurological events between the pre-stent and stent eras. Unruptured aneurysms treated by coil embolization between April 2005 and May 2018 were analyzed retrospectively. We divided cases into two groups: the pre-stent era and the stent era. The cumulative rate of re-treatment and neurological events were assessed and compared. During the period, 177 aneurysms were treated in the pre-stent era and 354 aneurysms were treated in the stent era. The median follow-up was 55 months. In the stent era, the dome/neck (D/N) ratio was significantly lower (P <0.001) and the number of aneurysms located at the posterior circulation was higher (P <0.001). A stent was used in 31.92% of cases in the stent era. The cumulative rate of re-treatment was significantly higher in the pre-stent era than it was in the stent era in univariate and multivariate analyses (P = 0.008, P = 0.008, respectively). The cumulative rate of neurological events was not significantly different between the two groups. The re-treatment rate has been improved without increasing neurological complications after introduction of the neck-bridge stent.</description><subject>Aneurysm</subject><subject>Aneurysms</subject><subject>cerebral aneurysm</subject><subject>coil embolization</subject><subject>Embolization</subject><subject>Endovascular coiling</subject><subject>Hemorrhage</subject><subject>Implants</subject><subject>Ischemia</subject><subject>Neck</subject><subject>neck-bridge stent</subject><subject>Neurological complications</subject><subject>Original</subject><issn>0470-8105</issn><issn>1349-8029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpVUV1v0zAUjSbQVo2984Qs8ZziryQOD0hT6cakCpDGni3Hvmk9Ers4DlP3f_ifOO1WxoOv5XvPPefIJ8veEjynpCo_uF7PvZpTTHGOKSUn2YwwXucC0_pVNsO8wrkguDjLLobBNhhTLjgT1Wl2xliRxozOsj8r79Z5hNCjz2NQje1s3CHfooW3HVr2je_so4rWO9T6gO5cGLdxDGDQpYMx7IYeqTatoxsXgzej3kPTftwA-gr6Z94Ea9aAbiO4-DHR9lsV7JBADcQHALdHfg-QDxMCLYNCypl99_a58yZ73apugIun-zy7u1r-WHzJV9-ubxaXq1xXooy5AaZJqYC2laiZKWmrOS94ySkpeV3UvOGQPqCighakLQyuNQAQpQ20VNSGnWefDrzbsenB6CQfVCe3wfYq7KRXVv4_cXYj1_63rOqypJgngvdPBMH_GmGI8t6PwSXPkha4quuK4yKh8AGlgx-GAO1RgWA5ZStTtklNTtnKKdu08u6ls-PCc5IJcH0ApKnVqvOusw7-yWtDpsBg4iQS45Jglq50ku9U0rMqhBCT1NWB6X6Iag1HKRWi1R3svZVEsqm89HgE6I0KEhz7CxBr0yA</recordid><startdate>2021</startdate><enddate>2021</enddate><creator>HOSOO, Hisayuki</creator><creator>TSURUTA, Wataro</creator><creator>KATSUMATA, Masahiro</creator><creator>ISHIGAMI, Daiichiro</creator><creator>ISHIKAWA, Eiichi</creator><creator>MATSUMARU, Yuji</creator><creator>MATSUMURA, Akira</creator><general>The Japan Neurosurgical Society</general><general>THE JAPAN NEUROSURGICAL SOCIETY</general><general>Japan Science and Technology Agency</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TK</scope><scope>5PM</scope></search><sort><creationdate>2021</creationdate><title>Long-term Durability of Coil Embolization for Unruptured Aneurysm after Introduction of the Neck-bridge Stent: Comparison between the Pre-stent Era and the Stent Era</title><author>HOSOO, Hisayuki ; TSURUTA, Wataro ; KATSUMATA, Masahiro ; ISHIGAMI, Daiichiro ; ISHIKAWA, Eiichi ; MATSUMARU, Yuji ; MATSUMURA, Akira</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c786t-de3c16ae2f7893d62fc44546421649594b4e387728251f5d09ceee1acdef289d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aneurysm</topic><topic>Aneurysms</topic><topic>cerebral aneurysm</topic><topic>coil embolization</topic><topic>Embolization</topic><topic>Endovascular coiling</topic><topic>Hemorrhage</topic><topic>Implants</topic><topic>Ischemia</topic><topic>Neck</topic><topic>neck-bridge stent</topic><topic>Neurological complications</topic><topic>Original</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HOSOO, Hisayuki</creatorcontrib><creatorcontrib>TSURUTA, Wataro</creatorcontrib><creatorcontrib>KATSUMATA, Masahiro</creatorcontrib><creatorcontrib>ISHIGAMI, Daiichiro</creatorcontrib><creatorcontrib>ISHIKAWA, Eiichi</creatorcontrib><creatorcontrib>MATSUMARU, Yuji</creatorcontrib><creatorcontrib>MATSUMURA, Akira</creatorcontrib><creatorcontrib>Faculty of Medicine</creatorcontrib><creatorcontrib>Department of Neurosurgery</creatorcontrib><creatorcontrib>University of Tsukuba</creatorcontrib><creatorcontrib>Toranomon Hospital</creatorcontrib><creatorcontrib>Division of Stroke Prevention and Treatment</creatorcontrib><creatorcontrib>Department of Endovascular Neurosurgery</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Neurologia medico-chirurgica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HOSOO, Hisayuki</au><au>TSURUTA, Wataro</au><au>KATSUMATA, Masahiro</au><au>ISHIGAMI, Daiichiro</au><au>ISHIKAWA, Eiichi</au><au>MATSUMARU, Yuji</au><au>MATSUMURA, Akira</au><aucorp>Faculty of Medicine</aucorp><aucorp>Department of Neurosurgery</aucorp><aucorp>University of Tsukuba</aucorp><aucorp>Toranomon Hospital</aucorp><aucorp>Division of Stroke Prevention and Treatment</aucorp><aucorp>Department of Endovascular Neurosurgery</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Long-term Durability of Coil Embolization for Unruptured Aneurysm after Introduction of the Neck-bridge Stent: Comparison between the Pre-stent Era and the Stent Era</atitle><jtitle>Neurologia medico-chirurgica</jtitle><addtitle>Neurol. 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During the period, 177 aneurysms were treated in the pre-stent era and 354 aneurysms were treated in the stent era. The median follow-up was 55 months. In the stent era, the dome/neck (D/N) ratio was significantly lower (P <0.001) and the number of aneurysms located at the posterior circulation was higher (P <0.001). A stent was used in 31.92% of cases in the stent era. The cumulative rate of re-treatment was significantly higher in the pre-stent era than it was in the stent era in univariate and multivariate analyses (P = 0.008, P = 0.008, respectively). The cumulative rate of neurological events was not significantly different between the two groups. The re-treatment rate has been improved without increasing neurological complications after introduction of the neck-bridge stent.</abstract><cop>Japan</cop><pub>The Japan Neurosurgical Society</pub><pmid>33504732</pmid><doi>10.2176/nmc.oa.2020-0221</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Aneurysm Aneurysms cerebral aneurysm coil embolization Embolization Endovascular coiling Hemorrhage Implants Ischemia Neck neck-bridge stent Neurological complications Original |
| title | Long-term Durability of Coil Embolization for Unruptured Aneurysm after Introduction of the Neck-bridge Stent: Comparison between the Pre-stent Era and the Stent Era |
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