S. Desai, D. Tonetti, G. Nayar, A. Morrison, K. Shah, T. Jovin, A. Jadhav
{"title":"P-027 Ultra-early functional improvement after stroke thrombectomy – predictors and implications","authors":"S. Desai, D. Tonetti, G. Nayar, A. Morrison, K. Shah, T. Jovin, A. Jadhav","doi":"10.1136/neurintsurg-2021-snis.63","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.63","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123568431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Leacy, A. Puri, R. Starke, B. Jankowitz, A. Yoo, G. Pero, C. Chivot, Tom L. Yao, O. Zaidat
{"title":"P-047 Multimodal endovascular treatment of wide-necked aneurysms: safety and occlusion outcomes from the sterling registry","authors":"R. Leacy, A. Puri, R. Starke, B. Jankowitz, A. Yoo, G. Pero, C. Chivot, Tom L. Yao, O. Zaidat","doi":"10.1136/NEURINTSURG-2021-SNIS.83","DOIUrl":"https://doi.org/10.1136/NEURINTSURG-2021-SNIS.83","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129911245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"P-057 Initial experiences using the wahoo dual mode guide catheter","authors":"J. Vargas, M. Chaudry, A. Turk, R. Turner","doi":"10.1136/NEURINTSURG-2021-SNIS.93","DOIUrl":"https://doi.org/10.1136/NEURINTSURG-2021-SNIS.93","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130127886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Diestro, C. Parra-Fariñas, M. Balas, Z. Zador, N. Almusalam, A. Dmytriw, P. Rajendram, R. Phillips, A. Alqabbani, E. Qazi, Y. Li, W. Montanera, D. Sarma, T. Marotta, A. Bharatha, J. Spears
{"title":"P-003 Association between baseline serology and symptomatic intracranial hemorrhage after endovascular thrombectomy for acute ischemic stroke","authors":"J. Diestro, C. Parra-Fariñas, M. Balas, Z. Zador, N. Almusalam, A. Dmytriw, P. Rajendram, R. Phillips, A. Alqabbani, E. Qazi, Y. Li, W. Montanera, D. Sarma, T. Marotta, A. Bharatha, J. Spears","doi":"10.1136/neurintsurg-2021-snis.39","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.39","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124288262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
U. Ugur, S. Platko, D. Peters, F. Bensabeur, J. Terry, B. Ludwig, E. Cheng-Ching
{"title":"P-042 Initial experience with tenecteplase as the intravenous thrombolytic of choice before mechanical thrombectomy for large vessel occlusion acute ischemic stroke","authors":"U. Ugur, S. Platko, D. Peters, F. Bensabeur, J. Terry, B. Ludwig, E. Cheng-Ching","doi":"10.1136/NEURINTSURG-2021-SNIS.78","DOIUrl":"https://doi.org/10.1136/NEURINTSURG-2021-SNIS.78","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122756148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"P-014 Reperfusion catheter malfunction during stroke intervention: an analytical review of the FDA’s maude database","authors":"D. Bageac, B. Gershon, R. Leacy","doi":"10.1136/neurintsurg-2021-snis.50","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.50","url":null,"abstract":"Background In December 2020, the JET7 Xtra Flex reperfusion catheter was voluntarily recalled after reports of injury and death associated with device malfunction. The FDA’s MAUDE (Manufacturer and User Facility Device Experience) database aggregates reports of adverse events and product problems involving medical devices. We present the first analytical review of all MAUDE reports involving FDA cleared reperfusion catheters in order to summarize safety events to date and characterize unique modes of device failure. Methods All publicly available MAUDE datasets were downloaded and linked, and all events associated with catheters carrying product code ‘NRY’ were extracted. Product code ‘NRY’ encompasses all devices intended to restore blood flow by removing thrombus/clots in patients experiencing ischemic stroke. Note that this review does not include catheters used off-label for aspiration thrombectomy. Event characteristics including device type, malfunction and adverse events were collected directly as reported on MedWatch Form 3500. In order to characterize procedure-specific details, narrative information submitted in MedWatch Form 3500 Sections B and H was coded by 2 independent raters. Results Between 1/1/2003 and 8/31/2020, there were 1,808 reperfusion catheter defects and/or malfunctions reported in the MAUDE database. Of these, 93.4% did not result in any adverse effect on patients. There were 112 malfunctions associated with an adverse event, of which 98 (87.5%) resulted in injury, and 14 (12.5%) resulted in death. A summary of malfunctions is available in table 1. When interpreting these findings, it is important to note that FDA surveillance of these devices does not include data on the number of units sold, thus event rates cannot be determined or compared across devices. Of 14 reported deaths, 13 involved malfunctions of the Jet 7 Xtra Flex catheter. All of these cases reported mechanical failure at the tip of the catheter, 10 of which involved tip rupture or ballooning following contrast injection. Ballooning was unique to the Jet 7 Xtra Flex, and was also responsible for 3 patient injuries and 37 cases of malfunction that did not result in adverse outcomes. One death and 45 injuries involved the 3 MAX Reperfusion catheter. All of these events were caused by catheter fracture leading to fragment embolization or vessel injury. This mechanism of failure was not unique to the 3 MAX, and was present in 61.2% of all malfunctions resulting in injury. Among malfunctions that did not result in adverse events, the majority (59.1%) were attributable to damage that occurred on the back table during device preparation. Detailed descriptions of unique malfunction mechanisms for each catheter are omitted from this brief abstract but are available for presentation. Conclusion Reperfusion catheter failures resulting in injury or death are rare. These findings suggest that current methods of FDA surveillance have effectively identified outliers. Di","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122881975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Yuki, K. Ohkawa, S. Li, E. Steward, B. Nguyen, F. Hsu, J. Xu, S. Suzuki
{"title":"P-026 Aqua embolic system: evaluating the performance of a new liquid embolic system using a swine AVM model","authors":"I. Yuki, K. Ohkawa, S. Li, E. Steward, B. Nguyen, F. Hsu, J. Xu, S. Suzuki","doi":"10.1136/neurintsurg-2021-snis.62","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.62","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yang Liu, W. Brinjikji, M. Abbasi, D. Dai, J. Larco, D. Kallmes, L. Savastano
{"title":"P-005 Clot spatial heterogeneity rather than histologic composition is related to FPE rate","authors":"Yang Liu, W. Brinjikji, M. Abbasi, D. Dai, J. Larco, D. Kallmes, L. Savastano","doi":"10.1136/neurintsurg-2021-snis.41","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.41","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122153835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Kim, S. Khose, S. Salazar-Marioni, R. Abdelkhaleq, S. Sheth
{"title":"P-031 Effect of COVID-19 on acute ischemic stroke: population-level experience","authors":"Y. Kim, S. Khose, S. Salazar-Marioni, R. Abdelkhaleq, S. Sheth","doi":"10.1136/neurintsurg-2021-SNIS.67","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-SNIS.67","url":null,"abstract":"IntroductionSeveral studies report substantial decreases in the volume of acute ischemic stroke (AIS) during the early stage of coronavirus disease 2019 (COVID-19) pandemic. Differences in characteristics of strokes such as increasing rates of large vessel occlusion (LVO) stroke were also observed comparing between pre-COVID and COVID eras. However, these findings were often based on data from selected hospitals or networks and estimates may be biased by level of stroke care and baseline case mix. A population-based study including rural hospitals and non-stroke centers covering a longer observation period beyond the early-pandemic epoch may lead to more accurate insights.MethodsWe conducted a retrospective population-based study using the Texas Inpatient Public Use Data File, capturing all discharges from hospitals in the State of Texas excluding federal hospitals. We assessed quarterly changes in volume, characteristics, care of AIS, and patient outcomes from April 1, 2019-June 30, 2020 and compared two time periods. 2020Q2 was defined as the pandemic period and the previous one year as the pre-pandemic period. Cases were defined as inpatient hospitalizations to acute care hospitals with a primary diagnosis of AIS. ICD-10 diagnosis and procedure codes were used to identify AIS, LVO, use of intravenous tissue plasminogen activator (IV-tPA) and endovascular treatment (EVT). Hospitals were determined as CSC (Comprehensive Stroke Center) and non-CSC based on designation by the Texas Department of State Health Services.ResultsThe number of AIS cases dropped substantially from 10,745 per quarter in the pre-pandemic period to 9,277 in the pandemic period (-14%) in Texas. The percentage of patients aged younger than 65 (39.0% vs 40.4%, p=0.014) and LVO stroke (30.0% vs 32.7%, p<0.001) slightly increased. Percentages of admission to CSC (39.1% vs 39.5%, p=0.57) and admission through inter-hospital transfer (9.6% vs 9.3%, p=0.35) remained similar between pre-pandemic and pandemic periods. There was also no significant change in the use of IV-tPA (14.1% vs 13.6%, P=0.20) or EVT (5.4% VS 5.8%, P=0.12). In-hospital mortality slightly increased from 2.9% to 3.2% but it was not statistically significant (p=0.13). However, the percentage of death or hospice discharge increased from 7.6% to 8.4% (p=0.003) and age and LVO type adjusted odds ratio was 1.13 (95% CI 1.04-1.23).Abstact P-031 Figure 1ConclusionIn this population-level study, significant decreases in AIS volume were observed with slightly higher incidence in younger population and higher LVO strokes. Rates of thrombolysis and thrombectomy remained unchanged but patients appeared to have worse outcomes.DisclosuresY. Kim: None. S. Khose: None. S. Salazar-Marioni: None. R. Abdelkhaleq: None. S. Sheth: None.","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127890950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"P-052 A novel ex-vivo model to simulate delayed aneurysm rupture after flow-diverter treatment","authors":"H. Sodawalla, W. Merritt, G. Uyeda, T. Becker","doi":"10.1136/neurintsurg-2021-snis.88","DOIUrl":"https://doi.org/10.1136/neurintsurg-2021-snis.88","url":null,"abstract":"","PeriodicalId":341680,"journal":{"name":"Oral poster abstracts","volume":"78 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116583401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}