Interventional Neuroradiology最新文献

{"title":"Cerebrospinal fluid venous fistula causing spontaneous intracranial hypotension resulting in venous sinus thrombosis and coma.","authors":"Timothy G White, Justin Turpin, Miriam Shao, Jared B Bassett, Christina Baris, Richard B Libman, Athos Patsalides","doi":"10.1177/15910199241272582","DOIUrl":"10.1177/15910199241272582","url":null,"abstract":"<p><p>Cerebrospinal fluid (CSF) fistulas have recently been recognized as a cause of spontaneous intracranial hypotension (SIH), predominantly presenting with headaches, especially positional headaches. Atypical presentations like tinnitus and cranial nerve symptoms have also been reported. SIH has been linked to venous sinus thrombosis; however, to our knowledge, no prior cases describe a CSF venous fistula causing SIH that leads to cerebral venous thrombosis and coma. We report a patient who developed progressive venous sinus thrombosis, leading to coma, and was found to have low intracranial pressure indicative of SIH. Invasive monitoring and imaging confirmed the low intracranial pressure, prompting a dynamic myelogram that revealed a T2/3 CSF venous fistula. The patient underwent transvenous embolization of the fistula, which resulted in the resolution of symptoms and almost immediate improvement in both venous thrombosis and intracranial hypotension. CSF venous fistulae as a cause of SIH is a recently recognized entity, with ongoing research into its treatment through transvenous embolization. Most documented cases focus on patients with headaches. This case highlights a novel presentation, emphasizing the importance of thorough diagnostic workup in patients with cerebral venous thrombosis. Early detection and treatment of this condition can lead to significant clinical improvement, including the resolution of coma.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241272582"},"PeriodicalIF":1.5,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571328/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Traumatic occipital artery pseudoaneurysm: Case report, anatomical considerations, and literature review.","authors":"Natália Vasconcellos de Oliveira Souza, Kevin Janot, Adam A Dmytriw, Victor Hugo Benalia, Vitor Mendes Pereira","doi":"10.1177/15910199241271062","DOIUrl":"10.1177/15910199241271062","url":null,"abstract":"<p><p>We describe a case of a 22-year-old man with a traumatic occipital artery pseudoaneurysm revealed by a painful expanding neck hematoma after a penetrating knife injury. A neuroendovascular consultation was requested after a computed tomography angiogram showed active pseudoaneurysm bleeding. Anatomical considerations of the upper cervical region including dangerous anastomosis between the vertebral and internal carotid artery are discussed, illustrating how this impacted our treatment strategy. We also discuss other treatment modalities after a thorough literature review of traumatic occipital artery pseudoaneurysms.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241271062"},"PeriodicalIF":1.5,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569721/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Should they stay or should they go? Stroke transfers across a hospital network pre- and post-implementation of an automated image interpretation and communication platform.","authors":"James Bonner, Christopher J Love, Vipul Bhat, James E Siegler","doi":"10.1177/15910199241272652","DOIUrl":"10.1177/15910199241272652","url":null,"abstract":"<p><strong>Background: </strong>A key decision facing nonthrombectomy capable (spoke) hospitals is whether to transfer a suspected large vessel occlusion (LVO) patient to a comprehensive stroke center (CSC). In a retrospective cohort study, we investigated the rate of transfers resulting in endovascular thrombectomy (EVT) and associated costs before and after implementation of an artificial intelligence (AI)-based software.</p><p><strong>Methods: </strong>All patients with a final diagnosis of acute ischemic stroke presenting across a five-spoke community hospital network in affiliation with a CSC were included. The Viz LVO (Viz.ai, Inc.) software was implemented across the spokes with image sharing and messaging between providers across sites. In a cohort of patients before (pre-AI, December 2018-October 2020) and after (post-AI, October 2020-August 2022) implementation, we compared the EVT rate among ischemic stroke patients transferred out of our health system to the CSC. Secondary outcomes included the EVT rate based on spoke computed tomography angiography (CTA) and estimated transfer costs.</p><p><strong>Results: </strong>A total of 3113 consecutive eligible patients (mean age 71 years, 50% female) presented to the spoke hospitals with 162 transfers pre-AI and 127 post-AI. The rate of transfers treated with EVT significantly increased (32.1% pre-AI vs. 45.7% post-AI, p = 0.02). There was a sharp increase in CTA use post-AI at the spoke hospitals for all patients and transfers that likely contributed to the increased EVT transfer rate, but prior spoke CTA use alone was not sufficient to account for all improvement in EVT transfer rate (37.2% pre-AI vs. 49.2% post-AI, p = 0.12). In a binary logistic regression model, the odds of an EVT transfer in the intervention period were 1.85 greater as compared to preintervention (adjusted odds ratio 1.85, 95% confidence interval 1.12-3.06). The decrease in non-EVT transfers resulted in an estimated annual benefit of $206,121 in spoke revenue and $119,921 in payor savings (all US dollars).</p><p><strong>Conclusions: </strong>The implementation of an automated image interpretation and communication platform was associated with increased CTA use, more transfers treated with EVT, and potential economic benefits.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241272652"},"PeriodicalIF":1.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571365/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and radiographic outcomes after mechanical thrombectomy in medium-vessel posterior cerebral artery occlusions: Subgroup analysis from STAR.","authors":"Eyad Almallouhi, Matthew C Findlay, Ilko Maier, Pascal Jabbour, Joon-Tae Kim, Stacey Quintero Wolfe, Ansaar Rai, Robert M Starke, Marios-Nikos Psychogios, Amir Shaban, Nitin Goyal, Shinichi Yoshimura, Hugo Cuellar, Brian Howard, Ali Alawieh, Ali Alaraj, Mohamad Ezzeldin, Daniele G Romano, Omar Tanweer, Justin Mascitelli, Isabel Fragata, Adam Polifka, Fazeel Siddiqui, Joshua Osbun, Roberto Crosa, Charles Matouk, Min S Park, Michael R Levitt, Waleed Brinjikji, Mark Moss, Ergun Daglioglu, Richard Williamson, Pedro Navia, Peter Kan, Reade De Leacy, Shakeel Chowdhry, David J Altschul, Alejandro Spiotta, Ramesh Grandhi","doi":"10.1177/15910199241273839","DOIUrl":"10.1177/15910199241273839","url":null,"abstract":"<p><strong>Background: </strong>Whereas mechanical thrombectomy (MT) has become standard-of-care treatment for patients with salvageable brain tissue after acute stroke caused by large-vessel occlusions, the results of MT in patients with medium-vessel occlusions (MEVOs), particularly in the posterior cerebral artery (PCA), are not well known.</p><p><strong>Methods: </strong>Using data from the international Stroke Thrombectomy and Aneurysm Registry (STAR), we assessed presenting characteristics and clinical outcomes for patients who underwent MT for primary occlusions in the P2 PCA segment. As a subanalysis, we compared the PCA MeVO outcomes with STAR's anterior circulation MeVO outcomes, namely middle cerebral artery (MCA) M2 and M3 segments.</p><p><strong>Results: </strong>Of the 9812 patients in STAR, 43 underwent MT for isolated PCA MeVOs. The patients' median age was 69 years (interquartile range 61-79), and 48.8% were female. The median NIH Stroke Scale score was 9 (range 6-17). After recanalization, 67.4% of patients achieved successful recanalization (modified treatment in cerebral infarction score [mTICI] ≥ 2b), with a first-pass success rate of 44.2%, and 39.6% achieved a modified Rankin score of 0-2 at 90 days. Nine patients (20.9%) had died by the 90-day follow-up. In comparison with M2 and M3 MeVOs, there were no differences in presenting characteristics among the three groups. Patients with PCA MeVOs were less likely to undergo intra-arterial thrombolysis (4.7% PCA vs. 10.1% M2 vs. 16.2% M3, p = 0.046) or to achieve successful recanalization (mTICI ≥ 2b, 67.4%, 86.7%, 82.3%, respectively, p < 0.001); however, there were no differences in the rates of successful first-pass recanalization (44.2%, 49.8%, 52.3%, respectively, p = 0.65).</p><p><strong>Conclusions: </strong>We describe the STAR experience performing MT in patients with PCA MeVOs. Our analysis supports that successful first-pass recanalization can be achieved in PCA MEVOs at a rate similar to that in MCA MeVOs, although further study and possible innovation may be necessary to improve successful PCA MeVO recanalization rates.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241273839"},"PeriodicalIF":1.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Basilar artery occlusion management: An international survey of gender influence on management.","authors":"Meabh Peacock, Brian Drumm, Piers Klein, Jean Raymond, Xiaochuan Huo, Yimin Chen, Mohamad Abdalkader, Wouter J Schonewille, Xinfeng Liu, Wei Hu, Chuanhui Li, Xunming Ji, Fana Alemseged, Liping Liu, James E Siegler, Simon Nagel, Daniel Strbian, Simona Sacco, Shadi Yaghi, Muhammad M Qureshi, Urs Fischer, Diana Aguiar de Sousa, Hiroshi Yamagami, Patrik Michel, Volker Puetz, Adnan Mujanovic, João Pedro Marto, Espen Saxhaug Kristoffersen, Else C Sandset, Jelle Demeestere, Uta Hanning, Robin Novakovic, Cynthia Kenmuir, Ronit Agid, Michele Romoli, Francesco Diana, Kyriakos Lobotesis, Dylan Roi, Hesham E Masoud, Alice Ma, Yuyou Zhu, Hongfei Sang, Dapeng Sun, Mai Duy Ton, Raynald, Fengli Li, Ahmed Nasreldein, Jessica Jesser, Johannes Kaesmacher, Charlotte S Weyland, Lukas Meyer, Leonard L L Yeo, Qingwu Yang, Götz Thomalla, Pengfei Yang, Sven Poli, Bruce C V Campbell, Adnan I Qureshi, Hui-Sheng Chen, Osama O Zaidat, Zhongming Qiu, Raul G Nogueira, Tudor G Jovin, Zhongrong Miao, Thanh N Nguyen, Soma Banerjee","doi":"10.1177/15910199241265590","DOIUrl":"https://doi.org/10.1177/15910199241265590","url":null,"abstract":"<p><strong>Background: </strong>The superiority of endovascular thrombectomy (EVT) over medical management was not established in two early basilar artery occlusion (BAO) randomized controlled trials. Despite this, many clinicians recommended EVT for acute BAO under certain circumstances. This paper aims to compare physicians' diagnostic and management strategies of BAO according to gender.</p><p><strong>Methods: </strong>From January to March 2022 an international survey was conducted regarding management strategies in acute BAO. We compared responses between clinicians by identifying gender. Questions were designed to examine clinical and imaging parameters influencing management of patients with BAO.</p><p><strong>Results: </strong>Among the 1245 respondents from 73 countries, 311 (25.0%) identified as female. This figure was 13.6% amongst interventionists. Geographically, female respondents were lowest in Asia (14.5%) and North America (23.9%). The proportion of respondents identifying as female was consistent regardless of their years of experience. Female respondents were more likely to choose time of onset as time of first estimated stroke like symptom (48.0% vs. 38.5%, <i>p</i> < .01), were less likely to favor thrombectomy in the V4 segment of vertebrobasilar artery occlusions (31.5% vs. 43.3%, <i>p</i> < .01), and were less likely to find it acceptable to enroll all patients who met trial criteria in the standard medical treatment arm of a clinical trial (41.2% vs. 47.0%, <i>p</i> = .01). Male respondents were more likely to agree that thrombolysis would not alter their decision on proceeding with EVT (93.7% vs. 88.3%, <i>p</i> < .01).</p><p><strong>Conclusions: </strong>Female clinicians appear to be significantly underrepresented in stroke medicine. This is most pronounced amongst interventionists and in Asia. Although male and female opinions were closely aligned on many aspects of BAO management, differences in opinion were observed in a number of significant areas which influence decision making.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241265590"},"PeriodicalIF":1.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transvenous embolization of cerebrospinal fluid-venous fistulas: A comprehensive technical video guide.","authors":"Soliman Oushy, Nicholas Borg, Waleed Brinjikji","doi":"10.1177/15910199241264859","DOIUrl":"https://doi.org/10.1177/15910199241264859","url":null,"abstract":"<p><p>Cerebrospinal fluid (CSF)-venous fistulas necessitate a comprehensive understanding of spinal venous anatomy for successful embolization.¹ This video details the essential technical and anatomical nuances of CSF-venous fistula embolization at various spinal levels, including the cervical, thoracic, and lumbar spine. Precise microcatheter navigation, guided by a detailed understanding of spinal venous anatomy, is crucial for reaching the fistula site and successful treatment. Embolization typically focuses on the foraminal vein, paraspinal vein, and lateral epidural plexus, aiming to create a comprehensive liquid embolic plug.² As experience with this procedure grows, continued refinement of techniques and exploration of optimal access routes will further enhance success rates.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241264859"},"PeriodicalIF":1.5,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141917874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Treatment of tumor-induced cerebral venous sinus stenosis: Technical note and review of the literature.","authors":"Timothy G White, Adrian Chen, Sidd Dalal, Shyle H Mehta, Justin Turpin, Kyriakos Papadimitriou, Thomas Link, Athos Patsalides","doi":"10.1177/15910199241267341","DOIUrl":"10.1177/15910199241267341","url":null,"abstract":"<p><strong>Introduction: </strong>Tumors that invade or compress the venous sinuses have the potential to impair venous drainage. Rarely, this may be so severe as to induce intracranial hypertension. Other studies have previously described venous sinus stenting (VSS) for the treatment of these symptomatic lesions. In this report, we present our series of eight cases of VSS for symptomatic tumor-induced venous sinus stenosis and review the existing literature.</p><p><strong>Cases: </strong>Eight patients with mostly intracranial tumors were found to have symptomatic venous sinus stenosis with the most common presenting symptom being elevated intracranial pressure. Six of the eight (75%) patients presented with papilledema on neuro-ophthalmological exam. The most affected locations were the transverse and sigmoid sinuses in four patients, followed by the superior sagittal sinus in three patients. All eight patients underwent VSS with no adverse events. In total, 6 out of 8 (75%) of patients had complete resolution of their symptoms, while the remaining patients experienced at least partial improvement.</p><p><strong>Conclusion: </strong>Tumors that cause symptomatic venous sinus stenosis may be successfully managed with VSS to improve venous drainage. This may facilitate continued conservative management of meningiomas or allow for treatment with noninvasive means, such as stereotactic radiosurgery. Depending on the size of the target stenosis, balloon-mounted coronary stents may be a suitable option to treat these lesions.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241267341"},"PeriodicalIF":1.5,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569794/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141879740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diffuse scalp neurofibromas: Case series and Clinicoradiological characteristics of a rare vascular lesion.","authors":"Aaron Bleakley, Guy Betts, Sajid Sainuddin, Christopher Hilditch","doi":"10.1177/15910199241267301","DOIUrl":"10.1177/15910199241267301","url":null,"abstract":"<p><p>Diffuse neurofibroma of the head and neck are rare tumours which have unique clinical and radiological findings. Presurgical diagnosis is important as these lesions are usually highly vascular and pre-operative embolisation can reduce the risk of intra-operative haemorrhage. In this article we describe four cases; two which underwent pre-operative embolisation, which should aid the reader in successfully diagnosing this entity before biopsy/surgery.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241267301"},"PeriodicalIF":1.5,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141879739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation of a model for outcome prediction after endovascular treatment for ischemic stroke.","authors":"Pedro Martins, Krishna Sambhu, Mohamed Tarek, Jaydevsinh Dolia, Aqueel Pabaney, Jonathan Grossberg, Raul Nogueira, Diogo Haussen","doi":"10.1177/15910199241265134","DOIUrl":"10.1177/15910199241265134","url":null,"abstract":"<p><strong>Introduction: </strong>The recently developed MR-PREDICTS@24 h model showed excellent performance in the MR-CLEAN Registry cohort in patients presenting within 12 h from onset. However, its applicability to an U.S. population and to patients presenting beyond 12 h from last known normal are still undetermined. We aim to externally validate the MR-PREDICTS@24 h model in a new geographic setting and in the late window.</p><p><strong>Methods: </strong>In this retrospective analysis of a prospectively collected database from a comprehensive stroke center in the United States, we included patients with intracranial carotid artery or middle cerebral artery M1 or M2 segment occlusions who underwent endovascular therapy and applied the MR-PREDICTS@24 h formula to estimate the probabilities of functional outcome at day 90. The primary endpoint was the modified Rankin Scale (mRS) at 90 days.</p><p><strong>Results: </strong>We included 1246 patients, 879 in the early (<12 h) and 367 in the late (≥12 h) cohort. For both cohorts, calibration and discrimination of the model were accurate throughout mRS levels, with absolute differences between estimated and predicted proportions ranging from 1% to 5%. Calibration metrics and curve inspections showed good performance for estimating the probabilities of mRS ≤ 1 to mRS ≤ 5 for the early cohort. For the late cohort, predictions were reliable for the probabilities of mRS ≤ 1 to mRS ≤ 4.</p><p><strong>Conclusion: </strong>The MR-PREDICTS@24 h was transferrable to a real-world U.S.-based cohort in the early window and showed consistently accurate predictions for patients presenting in the late window without need for updating.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241265134"},"PeriodicalIF":1.5,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571141/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141762092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Medium vessel occlusion thrombectomy: Single center experience using the 3 MAX catheter.","authors":"Aizaz Ali, Rahul Rao, Brandon Sharkey, Alisa Gega, Marion Oliver, Tahao Chen, Richard Burgess, Mouhammad Jumaa, Syed Zaidi","doi":"10.1177/15910199241264328","DOIUrl":"10.1177/15910199241264328","url":null,"abstract":"<p><strong>Introduction: </strong>Thrombectomy for medium vessel occlusion is a topic of great interest. We describe a single-center experience with the Penumbra 3-MAX aspiration catheter in stroke thrombectomy of medium vessel occlusion(MeVO). We investigated the use of 3-MAX as a de-novo first pass catheter and as a rescue aspiration device following attempted thrombectomy with other devices. This is the first description of the first pass effect and successful recanalization rate of the 3-MAX catheter in de-novo vs. rescue use of this catheter.</p><p><strong>Methods: </strong>From January 2017 to January 2023, 84 patients underwent mechanical thrombectomy with use of a Penumbra 3MAX aspiration catheter at our comprehensive stroke center. Patient charts were retrospectively reviewed. Primary efficacy outcome was successful recanalization following mechanical thrombectomy. Primary safety outcome was intracerebral hemorrhage.</p><p><strong>Results: </strong>A total of 84 patients underwent MT with the 3MAX device. It was used as a de novo catheter in 27(32.1%) and as a rescue catheter in 57(67.9%) patients. 35(41.6%) patients achieved angiographic TICI grade ≥ 2c. De novo 3MAX use led to 68.18% successful recanalization and rescue use led to 72.22% recanalization (p = 0.67) as measured by TICI score of 2c or better. Parenchymal intracerebral hemorrhages (PH) were present in 8 patients (9.5%).</p><p><strong>Conclusion: </strong>The Penumbra 3MAX catheter is safe and effective when used as a first pass or a rescue device in mechanical thrombectomy. We found similar rates of successful recanalization and minimal hemorrhagic risk when comparing the 3MAX as a rescue or de novo aspiration catheter.</p>","PeriodicalId":49174,"journal":{"name":"Interventional Neuroradiology","volume":" ","pages":"15910199241264328"},"PeriodicalIF":1.5,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569796/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141762090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}