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https://www.readbyqxmd.com/read/29909860/outcomes-and-associated-factors-in-malpractice-litigation-involving-inferior-vena-cava-filters
#1
REVIEW
Kenny Oh, Anil Hingorani
OBJECTIVE: Placement of inferior vena cava (IVC) filters is a controversial focus of medical malpractice. Clinicians currently have little information to guide them regarding key issues and outcomes in litigation. In this retrospective legal case review, we analyzed the factors associated with malpractice actions involving IVC filters. METHODS: The legal databases LexisNexis and Westlaw were searched from 1967 to 2016 for all published legal cases in the United States involving placement of IVC filters...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29909858/retrieval-of-a-permanent-venatech-lgm-filter-18-years-after-implantation-using-a-novel-removal-method
#2
Osman Ahmed, Mohamad Omar Hadied, Sreekumar Madassery
The VenaTech LGM (B. Braun, Melsungen, Germany) inferior vena cava (IVC) filter was designed as a permanent IVC filter to prevent clot migration and pulmonary embolism. This filter has been discontinued, but thousands remain implanted within patients who incur the added long-term risks of an indwelling IVC filter. We present a case of successful removal of a permanent VenaTech LGM IVC filter using a novel technique in a patient in whom filter placement was no longer indicated. The conical portion of the filter was removed intact, and the vertical struts were intentionally left embedded extravascularly within the caval wall...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29906426/importance-of-early-insertion-of-inferior-vena-cava-filters-in-unstable-patients-with-acute-pulmonary-embolism
#3
Paul D Stein, Fadi Matta, Frank R Lawrence, Mary J Hughes
BACKGROUND: Immortal time bias is a possible confounding factor in cohort studies. In this investigation, we assessed mortality with inferior vena cava (IVC) filters in unstable patients with pulmonary embolism using a design that eliminated immortal time bias. METHODS: Data are from Premier Healthcare Database, 2010-2014. International Classification of Disease-9th Clinical Modification codes were used. Unstable patients with pulmonary embolism and an admitting diagnosis of pulmonary embolism as well as a primary diagnosis of pulmonary embolism were included...
June 12, 2018: American Journal of Medicine
https://www.readbyqxmd.com/read/29904464/inferior-vena-cava-filter-placement-in-a-left-ivc-and-drainage-into-duplicated-svc-via-hemiazygous-continuation
#4
Jennifer Sweeney, Nainesh Parikh
Left-sided inferior vena cava (IVC) is the second most common anatomical anomaly of the IVC. We report a drainage pattern of the left IVC into a left duplicated superior vena cava (SVC) diagnosed during IVC filter placement consultation. The patient was a 66-year-old man with symptomatic hematuria caused by bladder cancer diagnosed with IVC thrombus and a left IVC found on a staging computed tomography urogram. The patient underwent computed tomography pulmonary angiogram, which ruled out pulmonary embolism, but demonstrated hemiazygous continuation of the left IVC above the diaphragm to meet a persistent left SVC (prevalence approximately 0...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29872245/inferior-vena-cava-filters-and-prevention-of-recurrent-pulmonary-embolism
#5
REVIEW
Anuj Malhotra, Sirish Kishore, David Trost, David C Madoff, Ronald S Winokur
Although inferior vena cava (IVC) filters have a clear role in preventing recurrent pulmonary embolism (PE) in patients with venous thromboembolism who cannot be anticoagulated, the role of filters in patients who are candidates for anticoagulation is controversial. With limited and conflicting data, practitioners often have to make an educated patient-specific decision when encountering this scenario. This article reviews the available data on the efficacy and risks associated with adjunctive IVC filter use to prevent recurrent PE...
June 2018: Seminars in Interventional Radiology
https://www.readbyqxmd.com/read/29866665/management-of-acute-lower-extremity-deep-venous-thrombosis-in-a-patient-with-duplicated-inferior-vena-cava-and-contraindication-to-anticoagulation-case-and-review-of-the-literature
#6
Shrinil Patel, Anmol Cheema, Tejas Karawadia, Michael Carson
Duplication of the inferior vena cava (DIVC) is an uncommon embryological anatomic phenomenon.We report a 63-year-old woman with extensive right leg deep vein thrombosis who required an IVC filter due to contraindications for anticoagulation, but was found to have DIVC which required the placement of two IVC filters with good result. This report will review and summarise past reports of DIVC management to provide a guide for future clinicians, and review the embryological development, diagnosis and IVC filter placement options as they are based on the type of anatomic malformation encountered...
June 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29843578/percutaneous-retrieval-of-ivc-filters-with-struts-penetrating-the-vertebral-body
#7
Prasoon P Mohan, Andrew J Richardson, Jason T Salsamendi
INTRODUCTION: Inferior vena cava (IVC) filter penetration of the caval wall is a well-documented complication. Less frequently, the struts of an IVC filter can penetrate a vertebral body that can lead to symptoms of abdominal pain. Vertebral penetration poses a management challenge, and characteristics for successful endovascular retrieval of such filters has not been reported. CASE DESCRIPTION: We present 2 cases of IVC filters with vertebral body penetration that were successfully retrieved through an endovascular approach...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29804569/factors-to-consider-regarding-the-need-for-inferior-vena-cava-filters
#8
REVIEW
Piotr Sobieszczyk
There continues to be controversy on the use of inferior vena cava (IVC) filters in patients with deep venous thrombosis, pulmonary embolism, and venous thromboembolism. In this state of the art review, the benefits and risks of IVC filters are discussed. Based on the current state of knowledge regarding the efficacy and risks of this therapy, guidelines are suggested regarding the patients who need and who do not need this expensive, risky, but potentially life-saving therapy.
March 2018: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29773455/inferior-vena-cava-filter-strut-penetration-into-the-vertebral-column-a-case-of-10-year-clinical-follow-up
#9
David A Petrov, Aakash Chauhan, Sean Fitzpatrick, Daniel T Altman, Bethany Casagranda
BACKGROUND: The rate of vena cava (IVC) filter placement has increased over the past decade, especially in the orthopaedic trauma patient population. With the increasing use of IVC filters, radiologists and referring clinicians must be familiar with potential complications. CLINICAL CASE: This case report presents an 18-year-old polytraumatized patient who had an IVC filter placed and required T8-L2 posterior spinal fusion. At 4.5 years of follow-up, a computed tomography (CT) scan for painful spinal hardware incidentally found that the IVC filter had migrated into the L3 vertebral body...
April 18, 2018: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29773346/predicting-inferior-vena-cava-ivc-filter-retrievability-using-positional-parameters-a-comparative-study-of-various-filter-types
#10
A Gotra, C Doucet, P Delli Fraine, A Bessissow, C Dey, B Gallix, L-M Boucher, D Valenti
PURPOSE: To compare changes in inferior vena cava (IVC) filter positional parameters from insertion to removal and examine how they affect retrievability amongst various filter types. MATERIALS AND METHODS: A total of 447 patients (260 men, 187 women) with a mean age of 55 years (range: 13-91 years) who underwent IVC filter retrieval between 2007-2014 were retrospectively included. Post-insertion and pre-retrieval angiographic studies were assessed for filter tilt, migration, strut wall penetration and retrieval outcomes...
May 14, 2018: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29760683/evaluation-of-primers-targeting-the-diazotroph-functional-gene-and-development-of-nifmap-a-bioinformatics-pipeline-for-analyzing-nifh-amplicon-data
#11
Roey Angel, Maximilian Nepel, Christopher Panhölzl, Hannes Schmidt, Craig W Herbold, Stephanie A Eichorst, Dagmar Woebken
Diazotrophic microorganisms introduce biologically available nitrogen (N) to the global N cycle through the activity of the nitrogenase enzyme. The genetically conserved dinitrogenase reductase ( nifH ) gene is phylogenetically distributed across four clusters (I-IV) and is widely used as a marker gene for N2 fixation, permitting investigators to study the genetic diversity of diazotrophs in nature and target potential participants in N2 fixation. To date there have been limited, standardized pipelines for analyzing the nifH functional gene, which is in stark contrast to the 16S rRNA gene...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29737629/calibration-of-interface-properties-and-application-to-a-finite-element-model-for-predicting-vena-cava-filter-induced-vein-wall-failure
#12
Alejandra Pérez-Andrés, Estefania Peña
We present a computational framework that integrates experimental techniques and FE modeling to calibrate material fracture parameters of the vena cava and the interaction properties between a retrievable filter (Günther Tulip) and the vena cava wall. The fitted parameters were then used to analyze the interaction of the IVC filter with the vena cava during the deployment process. An idealized cava Finite Element model was then developed including residual stresses and physiological pressure conditions. Filter deployment was simulated and a comprehensive study of tissue-filter interaction was performed by cohesive surface modeling...
May 8, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29725809/vena-cava-filter-retrieval-with-aorto-iliac-arterial-strut-penetration
#13
Brian P Holly, Ron C Gaba, Mark L Lessne, Robert J Lewandowski, Robert K Ryu, Kush R Desai, Ronald F Sing
PURPOSE: To evaluate the safety and technical success of inferior vena cava (IVC) filter retrieval in the setting of aorto-iliac arterial strut penetration. MATERIALS AND METHODS: IVC filter registries from six large United States IVC filter retrieval practices were retrospectively reviewed to identify patients who underwent IVC filter retrieval in the setting of filter strut penetration into the adjacent aorta or iliac artery. Patient demographics, implant duration, indication for placement, IVC filter type, retrieval technique and technical success, adverse events, and post procedural clinical outcomes were identified...
May 3, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29709932/an-unusual-case-of-inferior-vena-cava-thrombosis-in-a-healthy-male-bodybuilder
#14
Junichi Imanishi, Michiko Iseri, Masahiro Motoki, Sachiko Yoshikawa, Naohiko Sone, Tomoyuki Honjo, Kohei Kamemura, Kenji Kaihotsu, Masanori Iwahashi
Inferior vena cava (IVC) thrombosis is very rare, particularly in the absence of an apparent congenital caval abnormality or hypercoagulable state. We herein report an unusual case of a healthy and active 62-year-old male bodybuilder with a mass-like IVC thrombus. We placed an IVC filter and began treatment with rivaroxaban. The patient recovered successfully, and the IVC thrombus completely disappeared three months later. This case suggested that extrinsic compression of IVC by a tightened weightlifting belt around the abdomen is a triggering factor of IVC thrombosis, and rivaroxaban, a new oral anticoagulant, may be a useful option for treatment...
April 27, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29706344/endovascular-removal-of-fractured-inferior-vena-cava-filter-fragments-5-year-registry-data-with-prospective-outcomes-on-retained-fragments
#15
Andrew J Kesselman, Nam Sao Hoang, Alexander Y Sheu, William T Kuo
PURPOSE: To evaluate the safety and efficacy of attempted percutaneous filter fragment removal during retrieval of fractured inferior vena cava (IVC) filters and to report outcomes associated with retained filter fragments. MATERIALS AND METHODS: Over a 5-year period, 82 consecutive patients presenting with a fractured IVC filter were prospectively enrolled into an institutional review board-approved registry. There were 27 men and 55 women (mean, 47 y; range, 19-85 y)...
June 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29675062/indications-retrieval-rate-and-complications-of-inferior-vena-cava-filters-single-center-experience-in-saudi-arabia
#16
Abdullah Bin Shabib, Fahad Alsayed, Saad Aldughaythir, Hanan Habeeb, Sumayyah Al Tamimi, Emad Masuadi, Mohsen Alzahrani, Ali Alaklabi, Azzam Alotaibi, Rajkumar Rajendram, Mosaad Almegren
BACKGROUND: Inferior vena cava (IVC) filter is indicated in patients with acute venous thromboembolism (VTE) in whom therapeutic anticoagulation is contraindicated. While prophylactic insertion of an IVC filter may be considered for patients at high risk of VTE, there are significant differences between clinical guidelines on the role of IVC filters. These discrepancies have arisen predominantly because of the paucity of data on the efficacy and safety of IVC filters. We, therefore, evaluated the indications for filter insertion, the rate of filter retrieval and complications in patients who received IVC filters at King Abdulaziz Medical City (KAMC), Riyadh, Saudi Arabia...
April 2018: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/29642860/atrophic-inferior-vena-cava-is-a-marker-of-chronicity-of-intra-filter-and-inferior-vena-cava-thrombosis-based-on-ct-findings
#17
Liang Chen, Wanyin Shi, Jianping Gu, Xu He, Wensheng Lou
BACKGROUND: A permanently indwelling filter in the inferior vena cava (IVC) may induce caval thrombosis, which could develop and evolve from an acute to a chronic phase. The differential diagnosis of acute and chronic thromboses determines the treatment strategy. The role of computed tomography (CT) in diagnosing acute and chronic intra-filter and IVC thromboses has not been well established. This retrospective study summarizes the CT signs that indicate acute and chronic phases of intra-filter and IVC thromboses...
April 11, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29613956/optimal-timing-of-initiation-of-thromboprophylaxis-in-spine-trauma-managed-operatively-a-nationwide-propensity-matched-analysis-of-trauma-quality-improvement-program
#18
Muhammad Zeeshan, Muhammad Khan, Terence O'Keeffe, Nina Pollack, Mohammad Hamidi, Narong Kulvatunyou, Joseph V Sakran, Lynn Gries, Bellal Joseph
INTRODUCTION: Patients with spinal trauma are at high-risk for venous-thromboembolism(VTE). Guidelines recommend prophylactic anticoagulation but they are unclear on timing of initiation of thromboprophylaxis. The aim of our study was to assess the impact of early vs late initiation of venous thromboprophylaxis in patients with spinal trauma who underwent operative intervention. METHODS: We performed a 2-year (2013-14) review of patients with isolated spine trauma (S-AIS≥3 and no other injury in another body region with AIS>2) who underwent operative intervention and received thromboprophylaxis post-operatively...
April 2, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29603681/a-comparative-cfd-study-of-four-inferior-vena-cava-filters
#19
Josep M López, Gerard Fortuny, Dolors Puigjaner, Joan Herrero, Francesc Marimon
Computational fluid dynamics was used to simulate the flow of blood within an inferior vena cava (IVC) geometry model that was reconstructed from computed tomography images obtained from a real patient. The main novelty of the present work is that we simulated the implantation of 4 different filter models in this realistic IVC geometry. We considered different blood flow rates in the range between Vin =20 and Vin =80 cm3 /s, and all simulations were performed with both the Newtonian and a non-Newtonian model for the blood viscosity...
March 30, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29602758/new-method-for-ultrasound-guided-inferior-vena-cava-filter-placement
#20
Xiaojuan Qin, Chengfa Lu, Pingping Ren, Jin Gu, Yi Zheng, Chen Yu, Jian Wang, Mingxing Xie
OBJECTIVE: Transabdominal ultrasound (TAUS)-guided inferior vena cava filter (IVCF) placement currently uses an inferior vena cava (IVC) longitudinal plane with cross-section of the right renal artery or the transverse plane of the right renal vein (RRV)-IVC intersection. The goal of this study was to introduce a new method for TAUS-guided IVCF placement. METHODS: The study enrolled patients who were at high risk for or had pulmonary embolism from October 22, 2010, to June 30, 2016...
March 27, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
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