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Keywords
interventional neuroradiology,...
interventional neuroradiology, endovascular, neurointervention
#1
REVIEW
Oleg Shekhtman, Georgios S Sioutas, Gennadii Piavchenko, Shubhang Bhalla, Daniel L Cooke, Ethan Winkler, Jan-Karl Burkhardt, Visish M Srinivasan
INTRODUCTION: Endothelial cells (ECs) continuously line the cerebrovasculature. Molecular aberrations in the ECs are hallmarks and contributory factors to the development of cerebrovascular diseases, including intracranial aneurysms and arteriovenous malformations (AVMs). Endovascular biopsy has been introduced as a method to harvest ECs and obtain relevant biologic information. We aimed to summarize the literature on endovascular biopsy in neurointerventional surgery. METHODS: We conducted a comprehensive literature search in multiple databases, identifying eligible studies focusing on neurosurgical applications of endovascular biopsy...
March 22, 2024: Interventional Neuroradiology
#2
REVIEW
Devon L Mitchell, Laura Stone McGuire, Syed I Khalid, Ali Alaraj
BACKGROUND: Dual antiplatelet therapy is used to reduce the risk of thromboembolic complications in neuroendovascular surgery. However, the predictive utility of preoperative platelet-sensitivity testing for decreasing bleed risk in patients undergoing endovascular neurointervention remains unclear. OBJECTIVE: We conducted a systematic review and meta-analysis to illustrate the association between platelet response and risk of hemorrhagic complications from neuroendovascular surgery, examine the efficacy of the VerifyNow platelet reactivity unit (PRU) assay in predicting hemorrhagic outcomes, and assess whether a clinically useful threshold for platelet response can be defined to standardize guidelines...
January 8, 2024: Interventional Neuroradiology
#3
REVIEW
Timothy G White, Brandon A Santhumayor, Justin Turpin, Kevin Shah, Daniel Toscano, Ina Teron, Thomas Link, Athos Patsalides, Henry H Woo
Flow diversion (FD) has become a mainstay treatment for large wide-necked aneurysms. Despite excellent safety and efficacy, the risk of thromboembolic complications necessitates the use of dual antiplatelet therapy (DAPT). The use of DAPT makes hemorrhagic complications of stenting carry high morbidity and mortality. Additionally, DAPT usage carries a risk of "nuisance" complications that do not directly impact intracranial circulation but need to be managed nonetheless. To circumvent this issue, the most recent generation of flow diverters have undergone surface modification with various compounds to confer blood compatibility to limit clotting and thrombosis...
October 29, 2023: Interventional Neuroradiology
#4
JOURNAL ARTICLE
Naoki Kaneko, Charles Beaman, Taichiro Imahori, Ariel Takayanagi, Hamidreza Saber, Satoshi Tateshima
BACKGROUND: Robotic endovascular systems have the potential to reduce radiation exposure to physicians and expand timely neurointerventional access to patients in remote areas. The goal of the study was to determine the feasibility of robotic endovascular thrombectomy (EVT) in an in vitro model. METHODS: In vitro procedures were conducted manually and robotically using the Corpath GRX robotic system in a human vascular simulator with an elastic ovine clot in the M1 segment of the left middle cerebral artery...
October 8, 2023: Interventional Neuroradiology
#5
JOURNAL ARTICLE
Vinicius Carraro do Nascimento, Laetitia de Villiers, Permesh Singh Dhillon, Luis Domitrovic, Jean-Philippe Leblanc, Madison Booth, Hal Rice
BACKGROUND: Current neurointerventional procedures are expanding the use of large bore microcatheters, of up to 0.033" inner diameters, to accommodate intrasaccular flow disruptors or neck-bridging devices, including flow diverters. The use of large bore microwires may mitigate the ledge gap between wire and catheter, facilitate navigation and offer support in distal tortuous anatomy. We aim to report our early experience using the novel Aristotle (Scientia Vascular, West Valley City, UT) 18 and 24 microwires in neurovascular interventions...
October 5, 2023: Interventional Neuroradiology
#6
JOURNAL ARTICLE
Raoul Pop, Silja Räty, Roberto Riva, Gaultier Marnat, Tomas Dobrocky, Pierre Louis Alexandre, Margaux Lefebvre, Jean Francois Albucher, Marion Boulanger, Federico Di Maria, Sébastien Richard, Sébastien Soize, Eike Immo Piechowiak, Jan Liman, Arno Reich, Marc Ribo, Thomas Meinel, Anastasios Mpotsaris, David S Liebeskind, Jan Gralla, Urs Fischer, Johannes Kaesmacher
BACKGROUND: There are little available data regarding the influence of intravenous thrombolysis (IVT) on the efficacy of different first line endovascular treatment (EVT) techniques. METHODS: We used the dataset of the SWIFT-DIRECT trial which randomized 408 patients to IVT + EVT or EVT alone at 48 international sites. The protocol required the use of a stent retriever (SR), but concomitant use of a balloon guide catheter (BGC) and/or distal aspiration (DA) catheter was left to the discretion of the operators...
August 28, 2023: Clinical Neuroradiology
#7
JOURNAL ARTICLE
Shen Ning, Christophe Chautems, Yoonho Kim, Hal Rice, Uta Hanning, Sami Al Kasab, Lukas Meyer, Marios Psychogios, Osama O Zaidat, Ameer E Hassan, Hesham E Masoud, Adnan Mujanovic, Johannes Kaesmacher, Permesh S Dhillon, Alice Ma, Artem Kaliaev, Thanh N Nguyen, Mohamad Abdalkader
Advances in robotic technology have improved standard techniques in numerous surgical and endovascular specialties, offering more precision, control, and better patient outcomes. Robotic-assisted interventional neuroradiology is an emerging field at the intersection of interventional neuroradiology and biomedical robotics. Endovascular robotics can automate maneuvers to reduce procedure times and increase its safety, reduce occupational hazards associated with ionizing radiations, and expand networks of care to reduce gaps in geographic access to neurointerventions...
August 10, 2023: Seminars in Neurology
#8
JOURNAL ARTICLE
Yang Qiao, Yi J Zhang, Samuel Tsappidi, Tej I Mehta, Ferdinand K Hui
BACKGROUND: The increasing complexity and sophistication of neurovascular implants and other therapeutic devices depend on access and delivery systems. Advancements in access technologies are required to improve minimally invasive endovascular procedures. Steerable catheters have been available in other disciplines, however, their implementation in neurovascular interventions has been a barrier previously due to issues with miniaturization and vascular caliber/complexity. METHODS: A retrospective review of the neurovascular stroke database was conducted in accordance with local IRB to identify patients that received neurointerventional endovascular procedures using a novel first iteration 0...
August 7, 2023: Interventional Neuroradiology
#9
REVIEW
Joseph D Morrison, Krishna C Joshi, Andre Beer Furlan, Bradley Kolb, Yazan Radaideh, Stephan Munich, Webster Crowley, Michael Chen
BACKGROUND: Several recent reports of CorPath GRX vascular robot (Cordinus Vascular Robotics, Natick, MA) use intracranially suggest feasibility of neuroendovascular application. Further use and development is likely. During this progression it is important to understand endovascular robot feasibility principles established in cardiac and peripheral vascular literature which enabled extension intracranially. Identification and discussion of robotic proof of concept principals from sister disciplines may help guide safe and accountable neuroendovascular application...
August 5, 2023: Interventional Neuroradiology
#10
JOURNAL ARTICLE
Ryan M Naylor, Stephen Graepel, Waleed Brinjikji, Harry Cloft, Giuseppe Lanzino
Carotid-cavernous dural arteriovenous fistulas causing debilitating ocular symptoms and/or retrograde cortical venous drainage necessitate curative treatment, which is achieved by disrupting the proximal draining vein. Transvenous embolization of carotid-cavernous dural arteriovenous fistulas can be achieved through the superior or inferior petrosal sinuses, facial veins, or superior ophthalmic veins.1, 2 However, if these approaches are not feasible, various percutaneous approaches have been described that use the skull base foramina to provide direct access to the cavernous sinus...
June 15, 2023: Interventional Neuroradiology
#11
JOURNAL ARTICLE
Piers Klein, Xiaochuan Huo, Yimin Chen, Mohamad Abdalkader, Zhongming Qiu, Simon Nagel, Jean Raymond, Liping Liu, James E Siegler, Daniel Strbian, Thalia S Field, Shadi Yaghi, Muhammad M Qureshi, Jelle Demeestere, Volker Puetz, Anne Berberich, Patrik Michel, Urs Fischer, Johannes Kaesmacher, Hiroshi Yamagami, Fana Alemseged, Georgios Tsivgoulis, Wouter J Schonewille, Wei Hu, Xinfeng Liu, Chuanhui Li, Xunming Ji, Brian Drumm, Soma Banerjee, Simona Sacco, Else C Sandset, Espen Saxhaug Kristoffersen, Peter Slade, Robert Mikulik, Michele Romoli, Francesco Diana, Kailash Krishnan, Permesh Dhillon, Jin Soo Lee, Ekkehard Kasper, Hormuzdiyar Dasenbrock, Mai Duy Ton, Rytis Masiliūnas, Anita Ante Arsovska, João Pedro Marto, Adam A Dmytriw, Robert W Regenhardt, Gisele Sampaio Silva, Timo Siepmann, Dapeng Sun, Hongfei Sang, Jose Danilo Diestro, Pengfei Yang, Mahmoud H Mohammaden, Fengli Li, Hesham E Masoud, Alice Ma, Raynald, Aravind Ganesh, Jianmin Liu, Lukas Meyer, Diederik W J Dippel, Götz Thomalla, Mark Parsons, Adnan I Qureshi, Mayank Goyal, Albert J Yoo, Bertrand Lapergue, Osama O Zaidat, Hui-Sheng Chen, Bruce C V Campbell, Tudor G Jovin, Raul G Nogueira, Zhongrong Miao, Gustavo Saposnik, Thanh N Nguyen
BACKGROUND: The proper imaging modality for use in the selection of patients for endovascular thrombectomy (EVT) presenting in the late window remains controversial, despite current guidelines advocating the use of advanced imaging in this population. We sought to understand if clinicians with different specialty training differ in their approach to patient selection for EVT in the late time window. METHODS: We conducted an international survey of stroke and neurointerventional clinicians between January and May 2022 with questions focusing on imaging and treatment decisions of large vessel occlusion (LVO) patients presenting in the late window...
April 3, 2023: Clinical Neuroradiology
#12
JOURNAL ARTICLE
Ze'ev Itsekzon-Hayosh, Ronit Agid
AIM: Neurointervention (NIR) is a relatively new developing filed of medicine. Diversity and inclusion in various medical fields has made a significant progress. However, many surgical and interventional fields are still lagging in this respect. The aim of this study was to evaluate the degree of diversity and inclusion amongst neurointerventionalists in Canada. MATERIALS AND METHODS: A survey was completed in June 2022 by each neurointerventional division in Canada...
March 27, 2023: Interventional Neuroradiology
#13
JOURNAL ARTICLE
Assala Aslan, Basel Musmar, Ahmed Mamilly, Amro Saad Aldine, Luis De Alba, Octavio Arevalo, Chaitanya Ahuja, Hugo H Cuellar
Introduction Health literacy is an independent predictor of population health status and is directly related to the readability of available patient education material. The National Institutes of Health (NIH) and the American Medical Association have recommended that patient education materials (PEMs) be written between a fourth- and a sixth-grade education level. The authors assessed the readability of online PEMs about neurointerventional procedures that have been published by several academic institutions across the US...
January 2023: Curēus
#14
JOURNAL ARTICLE
Krishna Amuluru, Andrew Denardo, John Scott, Troy Payner, Charles Kulwin, Daniel H Sahlein
Spinal arteriovenous fistulas (AVFs) account for approximately 70% of all vascular spinal malformations and commonly develop in the lateral epidural space at the epidural /radicular venous junction. The fistula is located close to the spinal nerve root where a radiculomeningeal artery shunts to a radicular vein. Increased venous pressure leads to decreased spinal venous drainage and venous congestion causing progressive myelopathy, bowel/bladder incontinence and erectile dysfunction. Treatment consists of surgical occlusion of the intradural vein, or endovascular embolization, which has a reported success rate of 25%-75%...
November 10, 2022: Interventional Neuroradiology
#15
JOURNAL ARTICLE
Robert M Starke, Isaac Josh Abecassis, Vasu Saini, Charles C Matouk, Ameer E Hassan, Adnan H Siddiqui, Donald F Frei
INTRODUCTION: The purpose of this study was to report our initial experience of using a large-bore (0.096″ inner diameter) access catheter in neurovascular interventions. METHODS: Data were retrospectively collected from 5 sites in the US for neurovascular procedures performed using a large-bore access catheter. The effectiveness outcome was technical success, defined as the access catheter's successfully reaching its target vessel without conversion to direct carotid puncture or to a smaller-bore access catheter and successfully completing the intended neurointervention...
September 16, 2022: Interventional Neuroradiology
#16
JOURNAL ARTICLE
Uta Hanning, Matthias Bechstein, Johannes Kaesmacher, Grégoire Boulouis, René Chapot, Tommy Andersson, Edoardo Boccardi, Marios Psychogios, Christophe Cognard, Marta de Dios Lascuevas, Marta Rodrigues, Isabel Rodriguez Caamaño, Sergios Gargalas, Davide Simonato, Vedran Zupancic, Cornelia Daller, Lukas Meyer, Gabriel Broocks, Helena Guerreiro, Jens Fiehler, Mario Martínez-Galdamez, Vladimir Kalousek
BACKGROUND: Remote access of trainees to training centers via video streaming (tele-observership, e‑fellowship) emerges as an alternative to acquire knowledge in endovascular interventions. Situational awareness is a summary term that is also used in surgical procedures for perceiving and understanding the situation and projecting what will happen next. A high situational awareness would serve as prerequisite for meaningful learning success during tele-observerships. We hypothesized that live perception of the angiographical procedures using streaming technology is feasible and sufficient to gain useful situational awareness of the procedure...
July 13, 2022: Clinical Neuroradiology
#17
REVIEW
Jason Yuen, Mohamed Sobhi Jabal, Luis E Savastano, David F Kallmes
The last decade has witnessed a major expansion in endovascular interventions concurrent with a contraction of open neurovascular surgeries. Whether research efforts have also shifted from open to endovascular neurosurgery is an effect that has not been explored extensively. Understanding the bibliometric trend is important for researchers, funding agencies, and publishing journals. The aim of this review is to explore this potential shift. We compared the bibliometrics of open cerebrovascular and endovascular research articles published in two neurosurgical journals (Journal of Neurosurgery, Neurosurgery) and two neuroradiological journals (Journal of Neurointerventional Surgery, American Journal of Neuroradiology)...
May 2022: Curēus
#18
JOURNAL ARTICLE
Tom Boeken, Adnan Altayeb, Eimad Shotar, Kévin Premat, Stéphanie Lenck, Anne-Laure Boch, Mehdi Drir, Nader-Antoine Sourour, Frédéric Clarençon
OBJECTIVE: To evaluate the feasibility, safety, and rate of radial artery occlusion (RAO) after the treatment of intracranial aneurysms using a 6F Neuron MAX (Penumbra, Alameda, CA, USA) long sheath directly into the radial artery. METHODS: All consecutive patients treated for unruptured intracranial aneurysms with TRA using a 6F Neuron MAX catheter between September 2019 and May 2021 in a single tertiary center were screened. They were referred to a consultation and an ultrasound-Doppler assessment of the radial artery 3 months after treatment with the attending neuroradiologist...
May 13, 2022: Clinical Neuroradiology
#19
JOURNAL ARTICLE
Yi Yan, Zul Kaderali, Tumul Chowdhury, Jai Shankar
BACKGROUND: Intraoperative magnetic resonance imaging system (iMRIS) surgical theatre is a highly integrated operating room with an intraoperative magnetic resonance imaging (iMRI) designed originally for brain tumour surgery. Its use in neurointerventional procedures, particularly in the setting of endovascular coiling of intracranial aneurysms, has not been discussed in the literature to date. We present our initial experience about the safety and feasibility of iMRI to assess post operative complications and provide baseline imaging post coiling of intracranial aneurysms...
May 11, 2022: Interventional Neuroradiology
#20
JOURNAL ARTICLE
Jasmeet Singh, Anna Luisa Kuhn, Francesco Massari, Marwa Elnazeir, Roberto Kutcher, Ajit S Puri
Carotid stenosis due to severely calcified plaque can pose a significant therapeutic challenge. Extremely calcified scars/stenosis plaques can be challenging from an endovascular treatment perspective as severely calcified lesions are prone to technical failure, stent re-coil and restenosis. Intravascular lithotripsy, approved for treatment of severely calcified coronary lesions, can be used for breaking up the calcium build up in the intimal and medial layers of the vessel wall prior to stenting. This was designated as a breakthrough device innovation by the Food and Drug Administration...
May 3, 2022: Interventional Neuroradiology
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