Tumor Embolization

Author(s):  
Elad I. Levy ◽  
Richard Spiro ◽  
Michael B. Horowitz ◽  
Ricardo Hanel
Keyword(s):  
Neurology ◽  
2020 ◽  
Vol 94 (11) ◽  
pp. e1122-e1125
Author(s):  
Shashank Agarwal ◽  
Anna Derman ◽  
Eytan Raz ◽  
Syed T. Hoda ◽  
Karthikeyan Arcot ◽  
...  

ObjectiveTo present the clinical, radiologic, and pathologic findings of a patient with carotid intimal sarcoma.MethodsDetailed medical interview, neurologic examination, and diagnostic evaluation including CT angiography head and neck, MRI brain and neck, digital subtraction angiography, and biopsy of the mass were performed.ResultsWe report a patient who presented with symptoms of multifocal, bilateral strokes over weeks caused by an enlarging tumor thrombus associated with an intimal sarcoma of the carotid artery. The presence of a carotid space mass encasing the left internal carotid artery was initially not recognized on imaging and was mistakenly attributed to soft atheromatous plaque rather than tumor thrombus. Rapid disease progression resulted in multiple intracranial metastases from tumor embolization.ConclusionClinical and radiologic findings of intimal sarcoma may be similar to those of thrombotic disease. However, patients with sarcoma may show an associated perivascular soft tissue mass and an unusual distribution of vessel stenosis. Reevaluation of imaging should be considered in patients presenting with initial imaging findings suggestive of rapidly progressive thrombotic disease who have a poor response to antithrombotic therapy and do not follow an expected clinical course.


2002 ◽  
Vol 36 (5) ◽  
pp. 393-395 ◽  
Author(s):  
Akira Fujikawa ◽  
Yuichirou Daidoh ◽  
Yoshinori Taoka ◽  
Shouhei Nakamura

2021 ◽  
pp. neurintsurg-2021-017936
Author(s):  
Karen Chen ◽  
Demi Dawkins ◽  
Darren B Orbach ◽  
Beverly Aagaard-Kienitz

BackgroundPediatric neurointervention is challenged by the appropriateness of adult catheters and devices. This multicenter report on the smallest groin access sheaths offers technical notes and clinical outcomes in the pediatric neurointerventional population.MethodsAll pediatric neurointerventional cases from 2019 to 2021 were reviewed for use of a 3.3F Pediavascular or a 4F Merit Prelude Ideal low profile sheath. Hospital records were reviewed for complications and technical notes and compared with arterial groin access with the 4F Terumo Pinnacle in infants less than 1 year old, before the low profile sheaths at one author’s institution were introduced.ResultsFrom January 1, 2019 to March 31, 2021 there were 347 procedures performed at Boston Children’s Hospital and University of Wisconsin. Forty-four procedures in 26 patients were identified in which a 3.3F (38 cases, 20 patients) or 4F (6 cases, 6 patients) sheath was used. The average age was 2.2 years (1.5 days to 18 years). Retinoblastoma intra-arterial chemotherapy infusion (18 of 44) was the most common indication. The remaining procedures comprised vein of Galen embolization (12), diagnostic cerebral angiography (13), and one preoperative tumor embolization. Morbidity included a groin hematoma and decreased pulses (4.5%). No major groin complications occurred. There was no statistically significant difference compared with the historical cohort (132 procedures), which had seven instances of decreased pulses (5.3%, p>0.05).ConclusionThe 3.3F Pediavascular and 4F Merit Prelude Ideal sheaths are easily incorporated into the pediatric neurointerventionalist’s armamentarium for infants and readily accommodate various microcatheters for distal embolization and catheterization.


Author(s):  
Hesham Masoud ◽  
Thanh Nguyen ◽  
Alexander Norbash
Keyword(s):  

2006 ◽  
Vol 102 (2) ◽  
pp. 378-379 ◽  
Author(s):  
Christopher B. Komanapalli ◽  
Uttam Tripathy ◽  
Mitchell Sokoloff ◽  
Siamak Daneshmand ◽  
Asish Das ◽  
...  

Author(s):  
Robert P. Allison ◽  
Anna Maria Belli ◽  
Joo-Young Chun ◽  
Raymond Chung ◽  
Raj Das ◽  
...  
Keyword(s):  

2013 ◽  
Vol 18 (5) ◽  
pp. 450-455 ◽  
Author(s):  
Kevin C. Yao ◽  
Adel M. Malek

Object The resection of spinal hemangiomas is often challenging because of characteristic high-volume and potentially prohibitive intraoperative blood loss. Although transarterial embolization can mitigate this risk, it can be suboptimal when tumor arterial supply is diffuse or poorly defined. The authors present their experience in the use of preoperative percutaneous direct injection of spinal hemangiomas with N-butyl cyanoacrylate (NBCA) as an effective preoperative adjunct that may reduce operative blood loss and facilitate resection of these vascular tumors. Methods Four patients with symptomatic spinal hemangiomas were treated using percutaneous transpedicular direct NBCA-Lipiodol injection; 2 patients had undergone prior spinal angiography, with suboptimal transarterial embolization in 1. Each patient underwent percutaneous bilateral transpedicular NBCA-assisted tumor embolization prior to resection. Retrospective analysis of operative times, blood loss, and clinical data is presented. Results There were no complications associated with the percutaneous NBCA embolization technique. The procedure was effective at facilitating tumor removal and minimizing intraoperative blood loss, especially at the vertebral body resection stage. Improved tumor filling was achieved as the filling characteristics of dilute NBCA-Lipiodol mixture within large-channel, high-flow hemangiomas were appreciated with experience. Conclusions Transpedicular NBCA direct-puncture embolization of spinal hemangiomas is an effective preoperative adjunct that facilitates resection of these highly vascular tumors. It is particularly useful when transarterial embolization is unsafe or suboptimal due to constraints imposed by the local angioarchitecture.


2015 ◽  
Vol 32 (03) ◽  
pp. 323-328
Author(s):  
Omar Elsayed-Ali ◽  
Andrew Lipnik ◽  
Daniel Brown

2002 ◽  
Vol 81 (8) ◽  
pp. 536-547 ◽  
Author(s):  
Michael Horowitz ◽  
Richard E. Whisnant ◽  
Charles Jungreis ◽  
Carl Snyderman ◽  
Elad I. Levy ◽  
...  

We report on the preoperative embolization of a carotid-body paraganglioma by temporary balloon occlusion and ethanol injection. Complete devascularization was achieved without complication. Resection after a short postembolization interval required artery sacrifice. Histologic evaluation revealed that the tumor contained diffuse ethanol-induced microemboli. Compared with unembolized and polyvinyl-alcohol-embolized carotid-body paragangliomas, our technique resulted in no greater adverse effects on the tumor-vessel interface. This procedure is an effective and promising method of preoperative embolization of carotid-body tumors and warrants further experience and study. In this article, we also review the literature on carotid-body tumor embolization and ethanol embolization.


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