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https://www.readbyqxmd.com/read/29786104/correlation-between-the-expression-of-il%C3%A2-18-and-deep-venous-thrombosis
#1
Guangdi Li, Rudan Zhou, Xueling Zhao, Riguang Liu, Chuan Ye
The present study aimed to investigate the effect of the expression of interleukin (IL)‑18 and related markers on deep venous thrombosis (DVT) to examine their correlation. Sprague‑Dawley rats of different models were established and were randomly assigned into three groups. The expression of IL‑18, nuclear factor (NF)‑κB and von Willebrand factor (vWF) were detected in blood samples. The inferior vena cava (IVC) was ligated to establish the DVT model. Rat IL‑18 overexpression and inhibition vectors were constructed...
May 16, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29780574/synchronous-nephrectomy-and-cavoatrial-tumor-thrombectomy-under-normothermic-extracorporeal-circulation-and-beating-heart
#2
Eleftheria Mavrigiannaki, Ioannis Fesatidis, Evgenia Kalogridaki, Ioannis-Petros Katralis, Dimitrios Filippou, Panagiotis Skandalakis, Dionisios Vrochides
Formation of tumor thrombus is an occasional manifestation of renal cell carcinoma (RCC). Intravascular invasion of the renal vein and thereafter the inferior vena cava (IVC) might in very rare cases extend into the cardiac chambers. The subtle course and symptoms of such cases alongside with the engagement of vital anatomical structures marks them as a diagnostic and therapeutic challenge. Aggressive surgical intervention has proven to be critical for survival rates in such cases; however total synchronous resection remains a challenge for the surgical team and a debate for the medical community...
May 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29780061/a-retroaortic-left-renal-vein-in-a-female-cadaver
#3
Yoshiko Fujishima, Koichi Watanabe, Yoko Tabira, Joe Iwanaga, Yui Odo, Tsuyoshi Saga, R Shane Tubbs, Koh-Ichi Yamaki
We encountered a case of retroaortic left renal vein (RLRV) during an anatomical dissection course at our medical school in 2017. The case was a female cadaver who was 88 years old at death. Six roots of the left renal vein (RV) arose from the hilus of the kidney and joined to form one left renal vein, crossed dorsal to the abdominal aorta (AA) at the level of the second lumbar vertebra, and then drained into the inferior vena cava (IVC). Two roots joined at the right renal hilus to become the right RV to then drain into the IVC at the level of the first lumbar vertebral body...
May 21, 2018: Kurume Medical Journal
https://www.readbyqxmd.com/read/29779758/assessing-venous-thrombus-in-renal-cell-carcinoma-preliminary-results-for-unenhanced-3d-ssfp-mri
#4
L C Adams, B Ralla, G Engel, G Diederichs, B Hamm, J Busch, F Fuller, M R Makowski
AIM: To test the potential of unenhanced cardiac- and respiratory-motion-corrected three-dimensional steady-state free precession (3D-SSFP) magnetic resonance imaging (MRI) for the assessment of inferior vena cava (IVC) thrombus in patients with clear-cell renal cell carcinoma (cRCC), compared to standard contrast-enhanced (CE)-MRI and CE-computed tomography (CT). MATERIALS AND METHODS: Eighteen patients with cRCC and IVC thrombus, who received CE-MRI and 3D-SSFP at 1...
May 17, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29777844/angioplasty-for-budd-chiari-syndrome-in-a-child-with-26-year-follow-up
#5
Xixiang Gao, Zhu Tong, Lianrui Guo, Jianxin Li, Jian Zhang, Yongquan Gu
Budd-Chiari syndrome (BCS) is a rare but life-threatening disease. If not treated promptly, it is almost always lethal of progressive liver failure, severe nutritional depletion, and renal failure at the late stage. We report the successful treatment of a 5-year-old boy with BCS due to a stenosis of the IVC with a 26-year follow-up. We performed percutaneous transluminal angioplasty (PTA), which resulted in a great improvement of BCS, and the disappearance of ascites. Restenosis occurred at 25 years after the initial angioplasty, for which balloon angioplasty was repeatedly performed...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29777050/the-yeast-telomerase-recruitment-module-requires-a-specific-rna-architecture
#6
Nancy Laterreur, Bruno Lemieux, Hannah Neumann, Jean-Christophe Berger-Dancause, Daniel Lafontaine, Raymund J Wellinger
Telomerases are ribonucleoprotein (RNP) enzymes that are related to reverse transcriptases. While they maintain genome stability, their composition varies significantly between species. Yeast telomerase RNPs contain an RNA that is comparatively large and its overall folding shows long helical segments with distal functional parts. Here we investigated the essential stem IVc module of the budding yeast telomerase RNA, called Tlc1. The distal part of stem IVc includes a conserved sequence element CS2a and structurally conserved features to which bind the Pop1/Pop6/Pop7 proteins and which together function analogously to the P3 domains of the RNase P/MRP RNPs...
May 18, 2018: RNA
https://www.readbyqxmd.com/read/29774396/tumor-volume-as-a-prognostic-marker-in-p16-positive-and-p16-negative-oropharyngeal-cancer-patients-treated-with-definitive-intensity-modulated-radiotherapy
#7
Timo Carpén, Kauko Saarilahti, Caj Haglund, Antti Markkola, Jussi Tarkkanen, Jaana Hagström, Petri Mattila, Antti Mäkitie
PURPOSE: To investigate the impact of primary gross tumor volume (pGTV) and nodal gross tumor volume (nGTV) in oropharyngeal squamous cell carcinoma (OPSCC) and the difference in their role between human papillomavirus (HPV)-positive and HPV-negative patients. METHODS: The patient cohort consists of 91 OPSCC patients treated with definitive radiochemotherapy or radiotherapy using intensity-modulated radiotherapy (IMRT). All patients had a minimum follow-up of 31 months...
May 17, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29773455/inferior-vena-cava-filter-strut-penetration-into-the-vertebral-column-a-case-of-10-year-clinical-follow-up
#8
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
#9
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/29771983/the-effect-of-exposure-to-low-frequency-electromagnetic-fields-emf-as-an-integral-part-of-the-housing-system-on-anxiety-related-behaviour-cognition-and-welfare-in-two-strains-of-laboratory-mouse
#10
Oliver Burman, Gerardo Marsella, Angelo Di Clemente, Luigi Cervo
Electromagnetic field (EMF) technology has the potential to improve scientific data capture and welfare assessment by allowing automated data collection from individual cages. However, it is important to determine any impact that a new technology itself may have on animal welfare, and previous studies have found contrasting results of EMF on laboratory rodent anxiety-like behaviour and cognition. We therefore investigated whether there was an effect of low frequency EMF experienced continuously over a six-week period, as an integral part of the animal housing system, on measures of mouse anxiety-related behaviour, cognition and welfare...
2018: PloS One
https://www.readbyqxmd.com/read/29761678/ultrasound-of-jugular-veins-for-assessment-of-acute-dyspnea-in-emergency-departments-and-for-the-assessment-of-acute-heart-failure
#11
Batsheva Tzadok, Shay Shapira, Eran Tal-Or
BACKGROUND: When a patient arrives at the emergency department (ED) presenting with symptoms of acute decompensated heart failure (ADHF), it is possible to reach a definitive diagnosis through many different venues, including medical history, physical examination, echocardiography, chest X-ray, and B-type natriuretic peptide (BNP) levels. Point-of-care ultrasound (POCUS) has become a mainstream tool for diagnosis and treatment in the field of emergency medicine, as well as in various other departments in the hospital setting...
May 2018: Israel Medical Association Journal: IMAJ
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
#12
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/29758453/estimation-and-tracking-of-ap-diameter-of-the-inferior-vena-cava-in-ultrasound-images-using-a-novel-active-circle-algorithm
#13
Ebrahim Karami, Mohamed S Shehata, Andrew Smith
Medical research suggests that the anterior-posterior (AP)-diameter of the inferior vena cava (IVC) and its associated temporal variation as imaged by bedside ultrasound is useful in guiding fluid resuscitation of the critically-ill patient. Unfortunately, indistinct edges and gaps in vessel walls are frequently present which impede accurate estimation of the IVC AP-diameter for both human operators and segmentation algorithms. The majority of research involving use of the IVC to guide fluid resuscitation involves manual measurement of the maximum and minimum AP-diameter as it varies over time...
May 4, 2018: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29757735/from-sparse-coding-significance-to-perceptual-quality-a-new-approach-for-image-quality-assessment
#14
Ayyoub Ahar, Adriaan Barri, Peter Schelkens
An increasing number of image processing applications require an automated quality prediction of the visual content as perceived by humans. Since, sparse coding is suggested to be an underlying strategy of the brain's neural system, it would be logical to assume that specific tasks like quality assessment also attempt to adhere to this strategy. However, existing perceptual quality predictors, often mimicking the different stages of the human visual system and deploying machine learning strategies, such as neural networks, rarely integrate the concept of sparse coding in their design...
February 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29754159/deep-venous-thrombosis-in-a-child-with-inferior-vena-cava-and-renal-anomalies-kilt-syndrome
#15
Christy B Pomeranz, Danielle L Cullen, Richard D Bellah
Kidney and inferior vena cava abnormalities with leg thrombosis is a newly described entity in the literature termed KILT (kidney and inferior vena cava (IVC) abnormalities with leg thrombosis) syndrome. We present a case of newly diagnosed KILT syndrome in an 11-year-old girl presenting with pain and problems with ambulation. We also review the few cases of KILT syndrome previously reported in the literature.
May 12, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29746313/avalonelite-double-lumen-cannula-for-total-cavopulmonary-assist-in-failing-fontan-sheep-model-with-valved-extracardiac-conduit
#16
Cheng Zhou, Dongfang Wang, Francesca Condemi, Guangfeng Zhao, Stephen Topaz, Cherry Ballard-Croft, Joseph B Zwischenberger
The AvalonElite double lumen cannula (DLC) provides total cavopulmonary assist (CPA) in failing Fontan sheep, but recirculation limits reliability. To improve CPA performance, a two-valve extracardiac conduit (ECC) was used to bracket infusion blood toward pulmonary artery (PA). A total cavopulmonary connection with failing Fontan circulation adult sheep model was created with valved ECC (n = 6). The valved ECC was connected to superior/inferior venae cavae (SVC/IVC) and right PA. The AvalonElite DLC was inserted from right jugular vein with infusion opening between the ECC valves...
May 8, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29743653/long-term-outcome-of-recoverable-stents-for-budd-chiari-syndrome-complicated-with-inferior-vena-cava-thrombosis
#17
Yonghua Bi, Hongmei Chen, Penxu Ding, Jianzhuang Ren, Xinwei Han
This study aimed to present long-term results of a 12-year patient follow-up of recoverable stents for BCS complicated by inferior vena cava (IVC) thrombosis. Forty consecutive patients with BCS complicated by IVC thrombosis were treated with recoverable stents. The median duration of symptoms was 24 months. Recoverable stents was placed after predilation of the obstructed IVC, and then agitation thrombolysis or catheter-directed thrombolysis of IVC was performed. The recoverable stents was removed eventually after thrombus disappeared...
May 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29742686/a-rare-case-report-of-one-stage-surgical-treatment-for-left-renal-cell-carcinoma-with-level-iv-intravenous-tumor-thrombus-combined-with-severe-coronary-artery-stenosis
#18
Zhenqing Wang, Keqin Zhang, Hui Zhang, Dingqi Sun, Yong Li, Qi Tan, Qiang Fu
RATIONALE: Renal cell carcinoma (RCC) exhibits a natural tendency to extend from the kidney into inferior vena cava (IVC) and growing into the right atrium is a rare complication. We report a 65-year-old patient with an RCC with intravascular extension through renal vein into the IVC and right atrial combined with severe coronary artery disease. This case has not been described in the literature and there is no treatment guideline for it. PATIENT CONCERNS: A 65-year-old patient was admitted to our clinic with complaints of edema of both lower extremities...
May 2018: Medicine (Baltimore)
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
#19
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/29736835/value-of-two-dimensional-shear-wave-elastography-for-assessing-acute-liver-congestion-in-a-bama-mini-pig-model
#20
Li-Ting Xie, Dan-Xia Xu, Guo Tian, Li-Yun Zhong, Qi-Yu Zhao, Qing-Hong Ke, Tian-An Jiang
BACKGROUND: To date, liver congestion is one of the most significant clinical diseases. However, few studies have profoundly investigated the development, pathology, and prognosis of the important problems associated with acute hepatic congestion. AIMS: To explore the value of noninvasive two-dimensional shear wave elastography (2D-SWE) for assessing acute liver congestion in an animal model. METHODS: Six healthy Bama mini-pigs were used for this research and randomly divided into the experimental group and control group...
May 8, 2018: Digestive Diseases and Sciences
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