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Inferior cava vein

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https://www.readbyqxmd.com/read/28104688/mice-with-a-deficiency-in-clec-2-are-protected-against-deep-vein-thrombosis
#1
Holly Payne, Tatyana Ponomaryov, Steve P Watson, Alexander Brill
Deep vein thrombosis (DVT) with its major complication, pulmonary embolism, is a global health problem. Mechanisms of DVT remain incompletely understood. Platelets play a role in DVT but the impact of specific platelet receptors remains unclear. Platelet C-type lectin-like receptor 2 (CLEC-2) is known to maintain the physiological state of blood vasculature under inflammatory conditions. DVT is a thromboinflammatory disorder developing largely as sterile inflammation in the vessel wall. We hypothesized therefore that CLEC-2 might play a role in DVT...
January 19, 2017: Blood
https://www.readbyqxmd.com/read/28104144/pancreas-transplantation-after-liver-transplantation-a-case-report
#2
J H Ryu, T B Lee, Y M Park, K H Yang, C W Chu, J H Lee, B H Choi
Our aim was to describe the clinical indications, surgical technique, and clinical outcomes of a pancreas transplantation, performed 4 years after liver transplantation, as treatment for new-onset, uncontrolled diabetes mellitus in a 53-year-old man. Liver transplantation was performed for end-stage liver disease secondary to hepatitis B virus infection and hepatocellular carcinoma. The patient had no history of diabetes prior to the liver transplantation. The decision to proceed with a pancreas transplantation was made when the patient's blood sugar levels could not be normalized despite insulin doses >100 IU/d...
January 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28100901/pancreas-transplant-with-duodeno-duodenostomy-and-caval-drainage-using-a-diamond-patch-graft-a-single-center-experience
#3
Je Ho Ryu, Tae Beom Lee, Young Mok Park, Kwang Ho Yang, Chong Woo Chu, Jung Hee Lee, Taeun Kim, Byung Hyun Choi
BACKGROUND The surgical technique used in pancreas transplant is essential for patient safety and graft survival, and problems exist with conventional strategies. When enteric exocrine drainage is performed, there is no method of immunologic monitoring other than direct graft pancreas biopsy. The most common cause of early graft failure is graft thrombosis, and adequate preventive and treatment strategies are unclear. To overcome these disadvantages, we suggest a modified surgical technique. MATERIAL AND METHODS Eleven patients underwent pancreas transplant with our modified technique...
January 19, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28100158/double-inferior-vena-cava-ivc-with-intrahepatic-interruption-hemiazygos-vein-continuation-and-intrahepatic-venous-shunt
#4
Hilal Sahin, Yeliz Pekcevik, Ramazan Aslaner
The duplication of the inferior vena cava (IVC) is a rare congenital anomaly, which also has some variations regarding the complex embryological development of the IVC. In the typical form, infrarenal IVC segments are duplicated and the left IVC joins the left renal vein, which crosses anterior to the aorta in the normal fashion to join the right IVC. In variant forms, the interruption of the intrahepatic segment of the IVC, azygos or hemiazygos continuation, or retroaortic course of the renal vein may be seen...
January 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28099405/insights-in-transplanting-complex-paediatric-renal-recipients-with-vascular-anomalies
#5
Pankaj Chandak, Nicos Kessaris, Chris J Callaghan, Francis Calder, Jelena Stojanovic, Jonathon Olsburgh, Martin Drage, Helen Hume-Smith, Zubir Ahmed, Anna Adamusiak, Derek Roebuck, Colin Forman, Stephen D Marks, Nizam Mamode
BACKGROUND: Children with end-stage kidney disease may have co-existing iatrogenic or congenital vascular anomalies making transplantation difficult. We describe our approach in 5 recipients with vascular anomalies and significant co-morbidities, including one case of blood group incompatibility. METHODS: Five children aged 3 - 17 (median 7) years, weighing 14 - 34 (median 18) kg of whom 4 had occluded inferior vena cava or iliac veins and 2 had previous complex vascular reconstructions prior to transplantation for mid-aortic syndrome and multiple aortic aneurysms, respectively underwent renal transplantation...
January 17, 2017: Transplantation
https://www.readbyqxmd.com/read/28079982/recombinant-soluble-apyrase-apt102-inhibits-thrombosis-and-intimal-hyperplasia-in-vein-grafts-without-adversely-affecting-hemostasis-or-re-endothelialization
#6
Y Ji, O Adeola, T L Strawn, S S Jeong, R Chen, W P Fay
BACKGROUND: Occlusion of vein grafts (VGs) after bypass surgery due to thrombosis and intimal hyperplasia (IH) is a major clinical problem. Apyrases are enzymes that scavenge extracellular ATP and ADP and promote adenosine formation at sites of vascular injury and hence have potential to inhibit vein graft pathology. OBJECTIVES: We examined the effects of recombinant soluble human apyrase, APT102, on platelets, smooth muscle cells (SMCs), and endothelial cells (ECs) in vitro and thrombosis and IH in murine VGs...
January 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28070651/inferior-vena-cava-involvement-in-children-with-wilms-tumor
#7
Abeer Al Diab, Nader Hirmas, Abdellatif Almousa, Ramiz Abu-Hijlih, Fatinah Aljlouni, Iyad Sultan, Khalil Ghandour
OBJECTIVES: Retrospective review of children with WT thrombus involving the IVC. METHODS: We reviewed the charts of 123 patients with WT diagnosed between January 2006 and December 2015. Patients with caval tumor thrombus were identified, demographic data, radiological images, extent of thrombus, chemo- and radiotherapy, surgical approach, pathology reports and outcomes were analyzed. RESULTS: IVC involvement was identified in 11 patients (9%)...
January 9, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28060771/in-vitro-and-in-vivo-comparison-of-a-tailored-magnetic-particle-imaging-blood-pool-tracer-with-resovist
#8
Michael Gerhard Kaul, Tobias Mummert, Caroline Jung, Johannes Salamon, Amit Khandhar, R Matthew Ferguson, Scott Kemp, Harald Ittrich, Kannan Krishnan, Gerhard Adam, Tobias Knopp
Optimizing tracers for individual imaging techniques is an active field of research. The purpose of this study was to perform in vitro and in vivo magnetic particle imaging (MPI) measurements using a new monodisperse and size-optimized tracer, LS-008, and to compare it with the performance of Resovist, the standard MPI tracer. In vitro measurements were performed in concerns of concentration and amount of tracer in a phantom. In vivo studies were carried out in healthy FVB mice. The first group (n=3) received 60µL LS-008 (87mM) and the second (n=3) diluted Resovist of the same concentration and volume...
January 6, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28057275/anatomic-suitability-for-transcaval-access%C3%A2-based-on-computed-tomography
#9
REVIEW
Robert J Lederman, Adam B Greenbaum, Toby Rogers, Jaffar M Khan, Melissa Fusari, Marcus Y Chen
Transcaval access has been used successfully for over 200 transcatheter aortic valve replacements, large-bore percutaneous left ventricular assist devices, and thoracic endovascular aortic aneurysm repairs. This review teaches how to plan transcaval access and closure based on computed tomography. The main planning goals are to: 1) identify calcium-free crossing targets in the abdominal aorta along with optimal fluoroscopic projection angles and level with respect to lumbar vertebrae; 2) identify obstacles such as interposed bowel or pedunculated aortic atheroma; 3) plan covered stent bailout; and 4) identify jeopardized vascular branches such as renal arteries that might be obstructed by bailout covered stents if employed...
January 9, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28055329/percutaneous-transhepatic-fontan-kreutzer-completion-of-hepatic-vein-inclusion
#10
Ignacio Juaneda, Alejandro Peirone, Adolfo Ferrero Guadagnoli, Alejandro Contreras, Santiago Orozco, Juan Diaz, Christian Kreutzer
We report the case of an 11-year-old girl with heterotaxy syndrome, dextrocardia, and azygos continuation of an interrupted inferior vena cava who had developed pulmonary arteriovenous fistulas after a Kawashima procedure consisting of bilateral superior cavopulmonary anastomoses. She presented with profound cyanosis, fatigue, and failure to thrive. An operative procedure to direct hepatic vein effluent to the pulmonary circulation was performed with placement of an extracardiac conduit between the hepatic veins and the left pulmonary artery...
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28054365/mapping-for-acute-transvenous-phrenic-nerve-stimulation-study-maps-study
#11
Lukas R C Dekker, Bart Gerritse, Avram Scheiner, Lilian Kornet
AIMS: Central Sleep Apnea Syndrome, correlated with the occurrence of heart failure, is characterized by periods of insufficient ventilation during sleep. This acute study in 15 patients aims to map the venous system and determine, if diaphragmatic movement can be achieved by phrenic nerve stimulation at various locations within the venous system. METHODS: Subjects underwent a scheduled catheter ablation procedure. During the procedural waiting time, one multi-electrode EP catheter was subsequently placed at the the superior and inferior vena cava and the junctions of the left jugular and left brachiocephalic vein and right jugular and right brachiocephalic vein, for phrenic nerve stimulation (1-2 seconds ON / 2-3 seconds OFF, 40 Hz, pulse width 210 μs)...
January 5, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28047965/tu-h-campus-jep2-05-can-automatic-delineation-of-cardiac-substructures-on-noncontrast-ct-be-used-for-cardiac-toxicity-analysis
#12
Y Luo, Z Liao, W Jiang, D Gomez, R Williamson, L Court, J Yang
PURPOSE: To evaluate the feasibility of using an automatic segmentation tool to delineate cardiac substructures from computed tomography (CT) images for cardiac toxicity analysis for non-small cell lung cancer (NSCLC) patients after radiotherapy. METHODS: A multi-atlas segmentation tool developed in-house was used to delineate eleven cardiac substructures including the whole heart, four heart chambers, and six greater vessels automatically from the averaged 4DCT planning images for 49 NSCLC patients...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045672/catheter-directed-fibrinolysis-of-submassive-pulmonary-embolism-after-ivc-filter-migration-to-renal-veins
#13
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/28045419/successful-percutaneous-removal-of-broken-umbilical-vein-catheter-in-a-very-low-birth-weight-preterm-infant
#14
Atalay Demirel, Gülşah Güven, Füsun Okan, Arda Saygılı
A 28-week-old preterm infant with a birth weight of 1250 g had a broken segment of umbilical vein catheter (UVC) lodged in the right atrium. It was observed that a 7-cm fragment of catheter had migrated to the right atrium through the inferior vena cava. The catheter was successfully retrieved by fluoroscopically guided percutaneous cardiac catheterization, using a cobra catheter and snare wire, without complication. Fracture and embolization of UVC is a rare but serious complication. Presently described was a case of fractured and embolized UVC in a very low-birth-weight preterm infant, and its successful retrieval via percutaneous endovascular approach...
December 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28042557/can-pre-retrieval-computed-tomography-predict-the-difficult-removal-of-an-implementing-an-inferior-vena-cava-filter
#15
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/28031042/transitional-cell-carcinoma-with-extension-of-the-renal-vein-and-ivc-tumor-thrombus-report-of-three-cases-and-literature-review
#16
Mingyang Li, An Shi, Wen Kong, Jin Zhang, Yonghui Chen, Jiwei Huang, Yiran Huang
BACKGROUND: Transitional cell carcinoma (TCC) originating from the renal pelvis with a venous tumor thrombus is a rare entity. However, clinicians should be aware of it because of its high malignancy and poor prognosis. CASE PRESENTATION: Here, we report three cases of pathologically confirmed TCC originating from the renal pelvis with extension into the renal vein or inferior vena cava (IVC). Of these patients, two are males and one is female (58~73 years old)...
December 28, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28026845/double-inferior-vena-cava-with-three-shunts-a-rare-but-important-implications-for-surgeons
#17
Wunnee Chaijaroonkhanarak, Wanassanun Pannangrong, Jariya Umka Welbat, Malivalya Namking, Kimaporn Khamanarong, Parichat Prachaney
Inferior vena cava (IVC) is the largest single vein that collects systemic venous blood from the lower part of the body except the gut and drains into the right atrium. Double IVC is a rare anomaly in humans and usually is discovered incidentally during the interventional radiological procedures or routine cadaveric dissection. Here we report a rare case of unusual observations in an adult female Thai cadaver with a duplicated left IVC with three short venous shunts and a variant pattern of the hemiazygos vein...
December 27, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28019712/inferior-vena-cava-filters
#18
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/28012782/epithelioid-hemangioendothelioma-presenting-as-inferior-vena-cava-obstruction-diagnosed-using-an-endovascular-thrombectomy-device
#19
Loay Kabbani, Praveen Balraj, Jeff Mathews, Francis Tinney, Scott Schwartz, David Kwon, Felix Braun, Sara Wasilenko
Epithelioid hemangioendothelioma is a rare vascular sarcoma that arises from the lining (intima) of blood vessels. We report a case of epithelioid hemangioendothelioma in a 43-year-old male patient, who presented with inferior vena cava obstruction and acute bilateral lower extremity deep vein thrombosis. Mechanical thrombectomy was performed with an endovascular thrombectomy device, followed by stent placement in the inferior vena cava. The initial pathology on the retrieved specimen revealed an undifferentiated neoplasm, and surgical resection of the retroperitoneal soft tissue tumor of the inferior vena cava documented a rare case of epithelioid hemangioendothelioma...
December 21, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28012335/is-the-absence-of-right-hepatic-vein-opening-into-inferior-vena-cava-a-contraindication-for-right-lobe-liver-donation-in-living-donor-liver-transplantation-common-hepatic-venous-trunk-a-rare-hepatic-vein-anomaly-a-case-report-and-review
#20
Samrat Ray, T Anila, Sandeep Kumar Jha, Saumitra Rawat, Kishan Singh Rawat, Suresh Kumar Singhvi
INTRODUCTION: In majority of the living liver donors, the left and the middle hepatic veins form a common trunk and the right hepatic vein drains by a separate trunk into the IVC forming two ostial openings. PRESENTATION OF CASE: This report presents a rare challenge to the operating surgeon in which the three major hepatic veins form a common trunk and drain into the IVC through a single ostial opening. It was detected preoperatively by the routine donor imaging studies...
November 18, 2016: International Journal of Surgery Case Reports
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