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https://www.readbyqxmd.com/read/28219606/mechanisms-of-g%C3%A3-nther-tulip-filter-tilting-during-transfemoral-placement
#1
Y Matsui, M Horikawa, K Ohta, Y Jahangiri Noudeh, J A Kaufman, K Farsad
OBJECTIVE: The purpose of this study was to characterize the mechanisms of Günther Tulip filter (GTF) tilting during transfemoral placement in an experimental model with further validation in a clinical series. MATERIALS AND METHODS: In an experimental study, 120 GTF placements in an inferior vena cava (IVC) model were performed using 6 configurations of pre-deployment filter position. The angle between the pre-deployment filter axis and IVC axis, and the proximity of the constrained filter legs to IVC wall prior to deployment were evaluated...
February 14, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28214486/robotic-inferior-vena-cava-surgery
#2
Victor J Davila, Cristine S Velazco, William M Stone, Richard J Fowl, Haidar M Abdul-Muhsin, Erik P Castle, Samuel R Money
OBJECTIVE: Inferior vena cava (IVC) surgery is uncommon and has traditionally been performed through open surgical approaches. Renal cell carcinoma with IVC extension generally requires vena cavotomy and reconstruction. Open removal of malpositioned IVC filters (IVCF) is occasionally required after endovascular retrieval attempts have failed. As our experience with robotic surgery has advanced, we have applied this technology to surgery of the IVC. We reviewed our institution's experience with robotic surgical procedures involving the IVC to determine its safety and efficacy...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28214483/systemic-thrombolysis-increases-hemorrhagic-stroke-risk-without-survival-benefit-compared-with-catheter-directed-intervention-for-the-treatment-of-acute-pulmonary-embolism
#3
Nathan L Liang, Efthymios D Avgerinos, Michael J Singh, Michel S Makaroun, Rabih A Chaer
BACKGROUND: Systemic thrombolysis (ST) and catheter-directed intervention (CDI) are both used in the treatment of acute pulmonary embolism (PE), but the comparative outcomes of these two therapies remain unclear. The objective of this study was to compare short-term mortality and safety outcomes between the two treatments using a large national database. METHODS: Patients presenting with acute PE were identified in the National Inpatient Sample (NIS) from 2009 to 2012...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28213895/safety-of-implantation-of-a-leadless-pacemaker-via-femoral-approach-in-the-presence-of-an-inferior-vena-cava-filter
#4
Muhammad R Afzal, Janice Ackers, John D Hummel, Ralph Augostini
A 61-year-old woman with symptomatic complete heart block was referred for permanent pacemaker. The presence of a left sided arteriovenous fistula and right sided mastectomy with lymph node dissection precluded the implantation of a trans-venous pacemaker and therefore, a leadless pacemaker was recommended. The patient also had an inferior vena cava (IVC) filter. The passage of a 27 French introducer sheath housing the leadless pacemaker through IVC filter was carefully visualized under fluoroscopy and advanced to the right ventricle without any compromise to the filter...
February 17, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28208202/inferior-vena-cava-filters-when-to-place-and-when-to-remove
#5
John M Moriarty, Jonathan D Steinberger, Anshuman K Bansal
Pulmonary embolism (PE) is a common and feared result of deep vein thrombosis. While anticoagulation is the mainstay of management, interruption of flow of thrombus from leg veins to the pulmonary circulation is frequently desired either in lieu of or in addition to anticoagulation. Inferior vena cava filters have become frequently used to prevent PE despite a paucity of evidence for efficacy and increasing concerns about the long-term complications of indwelling filters.
February 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28185078/-ablation-of-av-nodal-reentrant-tachycardia-via-combined-access-through-the-medial-cubital-and-axillary-vein
#6
Tobias Schreiber, Philipp Attanasio, Frank Heinzel, Burkert Pieske, Wilhelm Haverkamp, Martin Huemer
If a transfemoral approach for catheter ablation procedures of paroxysmal supraventricular tachycardias is impossible, other access sites have to be considered. We present the case of a 78-year-old woman with an inferior vena cava (IVC) filter with symptomatic episodes of an atrioventricular nodal reentrant tachycardia (AVNRT). We used a combined cubital and axillary vein approach. The tachycardia was successfully ablated within the timeframe needed for conventional ablation.
February 9, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28175528/346%C3%A2-temporary-inferior-vena-cava-filter-to-prevent-pulmonary-embolism-in-thrombophilic-neurosurgery-patients
#7
Scott A Shapiro, Ian Kainoa White
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28167283/pre-operative-renal-artery-embolization-and-suprarenal-ivc-filter-placement-for-prevention-of-fat-embolization-in-renal-angiomyolipoma-with-venous-extension
#8
Joshua Cornman-Homonoff, David Li, Marc Schiffman
Though generally considered benign, angiomyolipomas can invade through the renal vein into the inferior vena cava, putting patients at risk of catastrophic pulmonary fat embolization. Venous invasion is thus an indication for surgical resection but is thought to increase the risk of adverse operative outcomes including intraoperative hemorrhage and embolization of fat and/or tumor thrombus. We report a novel approach to mitigating these complications illustrated in the case of a 43-year-old woman with IVC-invasive renal AML who underwent successful radical nephrectomy after concurrent pre-operative renal artery embolization and placement of a retrievable suprarenal IVC filter...
January 26, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28145872/double-inferior-vena-cava-and-its-implications-during-endovascular-and-surgical-interventions-a-word-of-caution
#9
Nicolas W Shammas, Rayan Jo Rachwan, Ghassan Daher, Bassel Bou Dargham
Double inferior vena cava (DIVC) is present in 0.2%-3.0% of the general population. Its presence can be detected by computed tomographic angiography or magnetic resonance imaging. Identifying the presence of DIVC is important to define its relationship with the renal vein, its size when IVC filters are planned, the location of the left renal vein in relationship to the aorta, and for planning of IVC filter placement in the setting of deep vein thrombosis and pulmonary embolism. Finally, this entity should not be mistaken for lymphadenopathy and its course should be well understood before abdominal and pelvic/retroperitoneal surgical interventions...
February 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28127123/factors-associated-with-reduced-radiation-exposure-cost-and-technical-difficulty-of-inferior-vena-cava-filter-placement-and-retrieval
#10
Matthew Neill, Hearns W Charles, Daniel Pflager, Amy R Deipolyi
We sought to delineate factors of inferior vena cava filter placement associated with increased radiation and cost and difficult subsequent retrieval. In total, 299 procedures from August 2013 to December 2014, 252 in a fluoroscopy suite (FS) and 47 in the operating room (OR), were reviewed for radiation exposure, fluoroscopy time, filter type, and angulation. The number of retrieval devices and fluoroscopy time needed for retrieval were assessed. Multiple linear regression assessed the impact of filter type, procedure location, and patient and procedural variables on radiation dose, fluoroscopy time, and filter angulation...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28123984/inferior-vena-cava-filter-retrievals-standard-and-novel-techniques
#11
REVIEW
Gokhan Kuyumcu, T Gregory Walker
The placement of an inferior vena cava (IVC) filter is a well-established management strategy for patients with venous thromboembolism (VTE) disease in whom anticoagulant therapy is either contraindicated or has failed. IVC filters may also be placed for VTE prophylaxis in certain circumstances. There has been a tremendous growth in placement of retrievable IVC filters in the past decade yet the majority of the devices are not removed. Unretrieved IVC filters have several well-known complications that increase in frequency as the filter dwell time increases...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28123983/complications-of-inferior-vena-cava-filters
#12
REVIEW
Simer Grewal, Murthy R Chamarthy, Sanjeeva P Kalva
Inferior vena cava (IVC) filter placement is a relatively low risk alternative for prophylaxis against pulmonary embolism in patients with pelvic or lower extremity deep venous thrombosis who are not suitable for anticoagulation. There is an increasing trend in the number of IVC filter implantation procedures performed every year. There are many device types in the market and in the early 2000s, the introduction of retrievable filters brought an additional subset of complications to consider. Modern filter designs have led to decreased morbidity and mortality, however, a thorough understanding of the limitations and complications of IVC filters is necessary to weight the risks and benefits of placing IVC filters...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28123981/catheter-directed-interventions-for-inferior-vena-cava-thrombosis
#13
REVIEW
Yosef Golowa, Michael Warhit, Felipe Matsunaga, Jacob Cynamon
Inferior vena cava (IVC) thrombosis, although similar in many aspects to deep venous thrombosis (DVT), has distinct clinical implications, treatments and roles for endovascular management. Etiologies of IVC thrombosis vary from congenital malformations of the IVC to acquired, where indwelling IVC filters have been implicated as a leading cause. With an increasing incidence of IVC thrombosis throughout the United States, clinicians need to be educated on the clinical signs and diagnostic tools available to aid in the diagnosis as well as available treatment options...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28112186/improvement-of-hemodynamic-performance-using-novel-helical-flow-vena-cava-filter-design
#14
Ying Chen, Peng Zhang, Xiaoyan Deng, Yubo Fan, Yubin Xing, Ning Xing
We propose a vena cava filter in which helical flow is created in the filter's working zone to minimize filter blockage by trapped clots and facilitate the lysis of trapped clots. To validate this new design, we compared five helical flow inducers with different thread pitches in terms of blood flow patterns in the filter. The vena cava was reconstructed based on computed tomography images. Both the numerical simulation and in vitro experiment revealed that the helical flow inducer can effectively create a helical flow in the vessel, thereby subduing the filter structure's adverse disruption to blood flow, and increasing flow-induced shear stress in the filter center...
January 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093377/ten-year-experience-of-retrievable-inferior-vena-cava-filters-in-a-tertiary-referral-center
#15
George Tse, Trevor Cleveland, Stephen Goode
PURPOSE: A significant proportion of patients undergoing surgery have an increased incidence of acute pulmonary embolus (PE). We analyzed all patients who had a retrievable inferior vena cava (IVC) filter placed preoperatively for PE prophylaxis and investigated the long-term outcomes of the patients who did not have their filter removed. METHODS: Patients who underwent retrievable IVC filter insertion and attempted removal were identified from the radiology information systems database in a large tertiary referral university teaching hospital...
January 17, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28046769/su-g-iep4-15-ultrasound-imaging-of-absorbable-inferior-vena-cava-filters-for-proper-placement
#16
T Mitcham, R Bouchard, A Melancon, M Eggers, M Melancon
PURPOSE: Inferior vena cava filters (IVCFs) are used in patients with a high risk of pulmonary embolism in situations when the use of blood thinning drugs would be inappropriate. These filters are implanted under x-ray guidance; however, this provides a dose of ionizing radiation to both patient and physician. B-mode ultrasound (US) imaging allows for localization of certain implanted devices without radiation dose concerns. The goal of this study was to investigate the feasibility of imaging the placement of absorbable IVCFs using US imaging to alleviate the dosage concern inherent to fluoroscopy...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045672/catheter-directed-fibrinolysis-of-submassive-pulmonary-embolism-after-ivc-filter-migration-to-renal-veins
#17
Kershaw V Patel, Jeffrey A Leef, John E Blair, Atman P Shah, Sandeep Nathan, Jonathan D Paul
A 76-year-old male presented with a submassive pulmonary embolism despite having an inferior vena cava (IVC) filter. Imaging demonstrated pulmonary artery emboli and a deep vein thrombosis in the left common femoral vein. Venography revealed the IVC filter with struts extending into the left and right renal veins. A new IVC filter was deployed below the prior filter. This case demonstrates IVC filter migration complicated by a submassive pulmonary embolism.
January 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28042557/can-pre-retrieval-computed-tomography-predict-the-difficult-removal-of-an-implementing-an-inferior-vena-cava-filter
#18
Shinho Hong, Keun-Myoung Park, Yong Sun Jeon, Soon Gu Cho, Kee Chun Hong, Woo Young Shin, Yun-Mee Choe
PURPOSE: Implementing an inferior vena cava (IVC) filter is a relatively safe procedure but potential negative long-term effects. The complications for filter retrieval have been noted. We examined filter characteristics on pre-retrieval computed tomography (CT) that were associated with complicated retrieval (CR) of IVC filters. MATERIALS AND METHODS: A retrospective review of IVC filter retrievals between January 2008 and June 2014 was performed to identify patients who had undergone a pre-retrieval CT for IVC filter retrieval...
December 2016: Vascular Specialist International
https://www.readbyqxmd.com/read/28019712/inferior-vena-cava-filters
#19
REVIEW
L Duffett, M Carrier
Use of inferior vena cava (IVC) filters has increased dramatically in recent decades, despite a lack of evidence that their use has impacted venous thromboembolism (VTE)-related mortality. This increased use appears to be primarily driven by the insertion of retrievable filters for prophylactic indications. A growing body of evidence, however, suggests that IVC filters are frequently associated with clinically important adverse events, prompting a closer look at their role. We sought to narratively review the current evidence on the efficacy and safety of IVC filter placements...
November 7, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28011891/expectoration-of-an-inferior-vena-cava-filter-strut
#20
Stephen Mehanni, Meghan Higley, Ryan C Schenning
Inferior vena cava (IVC) filter use is widespread in patients with venous thromboembolism (VTE) and temporary contraindication to anticoagulation, though timely removal is often not performed. We report the case of an expectoration of an IVC filter strut. Review of the patient's prior imaging confirmed an infrarenal Bard G2 filter with an absent strut, which was visualised in the left lung base. The strut was presumed to have embolised to a pulmonary artery branch and eroded into an adjacent bronchus. Subsequent fluoroscopically guided filter retrieval was successful...
December 23, 2016: BMJ Case Reports
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