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Extravasation

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https://www.readbyqxmd.com/read/28228886/transjugular-intrahepatic-portosystemic-shunt-for-chylous-ascites-in-a-patient-with-recurrent-cirrhosis-following-liver-transplantation
#1
Jason T Salsamendi, Francisco J Gortes, Prasoon P Mohan, Ji Fan, Govindarajan Narayanan
Chylous ascites (CA) is the extravasation of lipid-rich lymphatic fluid into the peritoneal space following trauma or obstruction of the lymphatic system. Refractory cases of cirrhosis-related CA may be amendable to transjugular intrahepatic portosystemic shunting (TIPS). We present a case of TIPS in the setting of refractory CA secondary to cirrhosis of a transplanted liver graft. Following TIPS, the patient reported immediate improvement in abdominal pain and no longer requires paracentesis. Our case suggests TIPS to be a safe and effective treatment option for CA in liver transplant patients with cirrhosis...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28223280/endothelial-cd99-supports-arrest-of-mouse-neutrophils-in-venules-and-binds-to-neutrophil-pilrs
#2
Debashree Goswami, Sigrid März, Yu-Tung Li, Annette Artz, Kerstin Schäfer, Ruth Seelige, Mariana Pacheco-Blanco, Ding Jing, Maria Gabriele Bixel, Masatake Araki, Kimi Araki, Kenichi Yamamura, Dietmar Vestweber
CD99 is a crucial regulator of the transmigration (diapedesis) of leukocytes through the blood vessel wall. Here, we report that CD99 acts at two different steps in the extravasation process. In agreement with previous antibody blocking experiments, we found that CD99 gene inactivation caused neutrophil accumulation between venular endothelial cells and the basement membrane in the inflamed cremaster. Unexpectedly, we additionally found that leukocyte attachment to the luminal surface of the venular endothelium was impaired in the absence of CD99...
February 21, 2017: Blood
https://www.readbyqxmd.com/read/28220212/rho-kinase-inhibition-ameliorates-cyclophosphamide-induced-cystitis-in-rats
#3
Andrzej Wróbel, Urszula Doboszewska, Ewa Rechberger, Karol Rojek, Anna Serefko, Ewa Poleszak, Krystyna Skalicka-Woźniak, Jarosław Dudka, Piotr Wlaź
Hemorrhagic cystitis often develops in patients treated with cyclophosphamide (CYP). Studies have indicated that Rho kinase (ROCK) inhibitors may suppress detrusor overactivity symptoms and possess anti-inflammatory properties. The aim of the present study was to investigate whether inhibition of ROCK reduces cystometric and histopathological changes associated with CYP-induced cystitis. The rats received GSK 269962, a ROCK inhibitor, at a dose of 30 mg/kg daily, or vehicle for 7 days. Then, acute chemical cystitis leading to bladder overactivity was induced by CYP injection (200 mg/kg i...
February 21, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28219400/alleviation-of-secondary-brain-injury-posttraumatic-inflammation-and-brain-edema-formation-by-inhibition-of-factor-xiia
#4
Sarah Hopp, Marc W Nolte, Christian Stetter, Christoph Kleinschnitz, Anna-Leena Sirén, Christiane Albert-Weissenberger
BACKGROUND: Traumatic brain injury (TBI) is a devastating neurological condition and a frequent cause of permanent disability. Posttraumatic inflammation and brain edema formation, two pathological key events contributing to secondary brain injury, are mediated by the contact-kinin system. Activation of this pathway in the plasma is triggered by activated factor XII. Hence, we set out to study in detail the influence of activated factor XII on the abovementioned pathophysiological features of TBI...
February 20, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28217732/knowledge-level-on-administration-of-chemotherapy-through-peripheral-and-central-venous-catheter-among-oncology-nurses
#5
Sevgisun Kapucu, Ayşe Özaydın Özkaraman, Neşe Uysal, Gulcan Bagcivan, Ferhan Çetin Şeref, Aygül Elöz
OBJECTIVE: The aim of this study is to determine the knowledge levels of oncology nurses about peripheral and central venous catheter during their chemotherapy administration. METHODS: Data collection of this descriptive study was started on April 15, 2015-July 15, 2015. The data presented in this summary belong to 165 nurses. Data were collected with data collection form including questions related to sociodemographic qualifications and knowledge levels of nurses...
January 2017: Asia-Pacific Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28214607/real-time-liver-uptake-and-biodistribution-of-magnetic-nanoparticles-determined-by-ac-biosusceptometry
#6
Caio C Quini, André G Próspero, Marcos F F Calabresi, Gustavo M Moretto, Nicholas Zufelato, Sunil Krishnan, Diana R Pina, Ricardo B Oliveira, Oswaldo Baffa, Andris F Bakuzis, Jose R A Miranda
We describe the development of a joint in vivo/ex vivo protocol to monitor magnetic nanoparticles in animal models. Alternating current biosusceptometry (ACB) enables the assessment of magnetic nanoparticle accumulation, followed by quantitative analysis of concentrations in organs of interest. We present a study of real-time liver accumulation, followed by the assessment of sequential biodistribution using the same technique. For quantification, we validated our results by comparing all of the data with electron spin resonance (ESR)...
February 15, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28214570/routine-urethrograpy-after-buccal-graft-bulbar-urethroplasty-the-impact-of-initial-urethral-leak-on-surgical-success
#7
Erik T Grossgold, Jairam R Eswara, Cary L Siegel, Joel Vetter, Steven B Brandes
OBJECTIVE: To determine the long-term impact of extravasation at initial post-urethroplasty urethrogram, we present a novel classification system and report the association of leak severity with outcome. MATERIALS AND METHODS: 91 patients underwent buccal graft urethroplasties of the bulbar urethra from 2007-2015. Median time to urethrogram was 23d. All leaks were characterized by length and width. Cutoffs for length and width were calculated using ROC curves. Each urethrogram was graded 0-3 (0=no leak) with one point given for any leak, length ≥1...
February 15, 2017: Urology
https://www.readbyqxmd.com/read/28211961/an-extended-vascular-model-for-less-biased-estimation-of-permeability-parameters-in-dce-t1-images
#8
Siamak P Nejad-Davarani, Hassan Bagher-Ebadian, James R Ewing, Douglas C Noll, Tom Mikkelsen, Michael Chopp, Quan Jiang
One of the key elements in dynamic contrast enhanced (DCE) image analysis is the arterial input function (AIF). Traditionally, in DCE studies a global AIF sampled from a major artery or vein is used to estimate the vascular permeability parameters; however, not addressing dispersion and delay of the AIF at the tissue level can lead to biased estimates of these parameters. To find less biased estimates of vascular permeability parameters, a vascular model of the cerebral vascular system is proposed that considers effects of dispersion of the AIF in the vessel branches, as well as extravasation of the contrast agent (CA) to the extravascular-extracellular space...
February 17, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28211883/the-inflammatory-state-provokes-sexual-dimorphism-in-left-ventricular-and-electrocardiographic-effects-of-chronic-cyclosporine-in-rats
#9
Hany M El-Bassossy, Zainy M Banjar, Mahmoud M El-Mas
Although cardiotoxicity has been recognized as an adverse effect of cyclosporine A (CSA), no information exists regarding sex specificity of CSA cardiotoxicity. We tested the hypothesis that left ventricular (LV) and electrocardiographic (ECG) effects of CSA and related inflammatory/histopathological derangements are sex related. CSA reduced the LV slope of end-systolic pressure volume relationship and increased isovolumic relaxation constant. These effects were more pronounced in male compared to female rats, suggesting LV systolic and diastolic dysfunction...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210073/macrophages-as-key-drivers-of-cancer-progression-and-metastasis
#10
REVIEW
Sebastian R Nielsen, Michael C Schmid
Macrophages are one of the most abundant immune cells in the tumour microenvironment of solid tumours and their presence correlates with reduced survival in most cancers. Macrophages are present at all stages of tumour progression and stimulate angiogenesis, tumour cell invasion, and intravasation at the primary site. At the metastatic site, macrophages and monocytes prepare for the arrival of disseminated tumour cells and promote their extravasation and survival by inhibiting immune-mediated clearance or by directly engaging with tumour cells to activate prosurvival signalling pathways...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28205474/utility-of-magnetic-resonance-imaging-in-the-surgical-management-of-drug-extravasation-a-case-report
#11
Yet Yen Yan, Tein Jin Tan
We report a case of phenytoin extravasation complicated by eschar formation. Pre-operative MRI study showed a large non-enhancing area over the dorsum of the imaged right wrist and hand corresponding with the site of phenytoin extravasation and raising the suspicion of subcutaneous tissue necrosis. The MRI findings correlated well with the intra-operative findings. We believe that pre-operative MRI in drug extravasation cases can characterise the type of soft tissue injury and define the extent of injury. This helps the surgeon in the surgical approach and treatment options...
March 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28203252/management-of-chyle-leak-after-head-and-neck-surgery-review-of-current-treatment-strategies
#12
REVIEW
Sean W Delaney, Haoran Shi, Alireza Shokrani, Uttam K Sinha
Chyle leak formation is an uncommon but serious sequela of head and neck surgery when the thoracic duct is inadvertently injured, particularly with the resection of malignancy low in the neck. The thoracic duct is the primary structure that returns lymph and chyle from the entire left and right lower half of the body. Chyle extravasation can result in delayed wound healing, dehydration, malnutrition, electrolyte disturbances, and immunosuppression. Prompt identification and treatment of a chyle leak are essential for optimal surgical outcome...
2017: International Journal of Otolaryngology
https://www.readbyqxmd.com/read/28195354/histopathology-of-bilateral-lower-extremity-inflammatory-lymphedema-in-military-basic-trainees-a-leukocytoclastic-vasculitis-of-the-deep-vascular-plexus
#13
Shannan E McCann, Scott R Dalton, Todd T Kobayashi
Bilateral lower extremity inflammatory lymphedema (BLEIL) is a recently described condition that presents with exquisite tenderness, erythema, and edema of the lower leg, ankle and dorsal foot resembling an acute cellulitis. It was first reported in healthy, young adult military basic trainees with a normal body mass index during the first 72 hours of arrival to basic training. It occurs while standing at attention for many hours, and shows rapid resolution with elevation and rest. We report an additional case of BLEIL and describe the histopathology of this case and two of the previously reported cases...
February 14, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28181494/microenvironment-derived-factors-driving-metastatic-plasticity-in-melanoma
#14
Isabella S Kim, Silja Heilmann, Emily R Kansler, Yan Zhang, Milena Zimmer, Kajan Ratnakumar, Robert L Bowman, Theresa Simon-Vermot, Myles Fennell, Ralph Garippa, Liang Lu, William Lee, Travis Hollmann, Joao B Xavier, Richard M White
Cellular plasticity is a state in which cancer cells exist along a reversible phenotypic spectrum, and underlies key traits such as drug resistance and metastasis. Melanoma plasticity is linked to phenotype switching, where the microenvironment induces switches between invasive/MITF(LO) versus proliferative/MITF(HI) states. Since MITF also induces pigmentation, we hypothesize that macrometastatic success should be favoured by microenvironments that induce a MITF(HI)/differentiated/proliferative state. Zebrafish imaging demonstrates that after extravasation, melanoma cells become pigmented and enact a gene expression program of melanocyte differentiation...
February 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28177902/identification-of-patient-specific-and-tumor-shared-t-cell-receptor-sequences-in-renal-cell-carcinoma-patients
#15
Chiara Massa, Harlan Robins, Cindy Desmarais, Dagmar Riemann, Corinna Fahldieck, Paolo Fornara, Barbara Seliger
A major requirement for cancer immunotherapy is the development of biomarkers for prognosis and for monitoring therapy response. In an attempt to evaluate the immune response of renal cell carcinoma (RCC) patients, tumor lesions and / or blood samples from 12 RCC patients underwent deep T cell receptor (TCR) sequencing. Despite the low number of samples, different TCR distribution patterns could be detected. Most of the RCC patients presented "patient-specific" TCR sequences, and those clonotypes were present at higher frequency in tumor lesions suggesting a specific extravasation from the blood...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28176852/a-critical-role-of-platelet-tgf-%C3%AE-release-in-podoplanin-mediated-tumour-invasion-and-metastasis
#16
Ai Takemoto, Mina Okitaka, Satoshi Takagi, Miho Takami, Shigeo Sato, Makoto Nishio, Sakae Okumura, Naoya Fujita
The tumour microenvironment is critical for various characteristics of tumour malignancies. Platelets, as part of the tumour microenvironment, are associated with metastasis formation via increasing the rate of tumour embolus formation in microvasculature. However, the mechanisms underlying the ability of tumour cells to acquire invasiveness and extravasate into target organs at the site of embolization remain unclear. In this study, we reported that platelet aggregation-inducing factor podoplanin expressed on tumour cell surfaces were found to not only promote the formation of tumour-platelet aggregates via interaction with platelets, but also induced the epithelial-mesenchymal transition (EMT) of tumour cells by enhancing transforming growth factor-β (TGF-β) release from platelets...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28176004/impact-of-decreased-serum-albumin-levels-on-acute-kidney-injury-in-patients-with-acute-decompensated-heart-failure-a-potential-association-of-atrial-natriuretic-peptide
#17
Yoichi Takaya, Fumiki Yoshihara, Hiroyuki Yokoyama, Hideaki Kanzaki, Masafumi Kitakaze, Yoichi Goto, Toshihisa Anzai, Satoshi Yasuda, Hisao Ogawa, Yuhei Kawano, Kenji Kangawa
Although hypoalbuminemia at admission is a risk for acute kidney injury (AKI) and mortality in patients with acute decompensated heart failure (ADHF), the clinical significance of decreased serum albumin levels (DAL) during ADHF therapy has not been elucidated. This study aimed to evaluate whether DAL was associated with AKI, and whether intravenous atrial natriuretic peptide (ANP) administration, which provides an effective treatment for ADHF but promotes albumin extravasation, was associated with DAL and AKI...
February 7, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28174320/isolation-of-luteal-endothelial-cells-and-functional-interactions-with-t-lymphocytes
#18
Sadhat S Walusimbi, Lindy Wetzel, David Townson, Joy Pate
The objectives of this study were to optimize the isolation of luteal endothelial cells (LEC) and examine their functional interactions with autologous T lymphocytes. Analysis by flow cytometry showed that the purity of LEC isolated by filtration was nearly 90% as indicated by Bandeiraea simplicifolia (BS)-1 lectin binding. LEC expressed mRNA for progesterone receptor (PGR), prostaglandin receptors (PTGFR, PTGER2 and 4, and PTGIR), tumor necrosis factor receptors (TNFRSF1A&B) and interleukin (IL) 1B receptors (IL1R1&2)...
February 7, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28169811/am%C3%A3-lioration-de-la-mesure-d%C3%A2-extravasation-des-cath%C3%A3-ters-veineux-p%C3%A3-riph%C3%A3-riques-par-les-infirmi%C3%A3-res-en-p%C3%A3-diatrie-gr%C3%A3-ce-%C3%A3-l%C3%A2-utilisation-d%C3%A2-un-instrument-d%C3%A2-%C3%A3-valuation-sp%C3%A3-cifique
#19
Nathalie Bochaton, Anne Sylvie Ramelet, Peter Rimensberger, Jean-Marie Januel
<ce:para>In pediatric and neonatal intensive care units, severity assessment of extravasation is difficult, considering the specificity of this population. The purpose of this study was to demonstrate the ability to improve the measurement of extravasation by nurses with the establishment of a standardized instrument and suitable for children. 66 nurses, randomly assigned to two groups, assessed the severity of extravasations using 15 clinical vignettes.The intervention group with the Pediatric Peripheral Intravenous Infiltration Scale (PIV Scale) (n=33) and the control group based on clinical judgment only (n=33)...
October 27, 2016: Recherche en Soins Infirmiers
https://www.readbyqxmd.com/read/28165571/negative-pressure-wound-therapy-and-early-pedicle-flap-reconstruction-of-the-chest-wall-after-epirubicin-extravasation
#20
Marios Papadakis, Afshin Rahmanian-Schwarz, Marzena Bednarek, Mohamed Arafkas, Philipp Holschneider, Gunnar Hübner
PURPOSE: Accidental extravasation is a serious iatrogenic injury among patients receiving anthracycline-containing chemotherapy. The aim of this work is to present a combination therapy for chest wall reconstruction following epirubicin extravasation. METHODS: Herein, we report a 68-year-old woman with massive soft tissue necrosis of the anterolateral chest wall after epirubicin extravasation from a port implanted in the subclavicular area. RESULTS: The necrotic tissue was resected, the port was removed, and negative-pressure wound therapy was applied...
January 31, 2017: Journal of Vascular Access
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