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https://www.readbyqxmd.com/read/29456415/gastroenteritis-in-an-adult-female-revealing-hemolytic-uremic-syndrome-case-report
#1
Paulina Chinchilla-López, Vania Cruz-Ramón, Oscar Ramírez-Pérez, Nahum Méndez-Sánchez
Nowadays acute gastroenteritis infection caused by Escherichia coli ( E. coli ) O157:H7 is frequently associated with hemolytic uremic syndrome (HUS), which usually developed after prodromal diarrhea that is often bloody. The abdominal pain accompanied by failure kidney is a suspicious symptom to develop this disorder. Their pathological characteristic is vascular damage which manifested as arteriolar and capillary thrombosis with abnormalities in the endothelium and vessel walls. The major etiological agent of HUS is enterohemorragic ( E coli ) strain belonging to serotype O157:H7...
February 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29452427/effect-of-routine-screening-head-ultrasounds-on-clinical-interventions-for-premature-infants
#2
Andrew Z Heling, Matthew M Laughon, Wayne A Price
OBJECTIVE: This article assesses whether routine, screening head ultrasound (HUS) studies performed at 7 to 14 postnatal days for premature infants are followed by clinical interventions. STUDY DESIGN: This retrospective cohort study included all inborn infants delivered at < 30 weeks' gestational age (GA) between January 1, 2012 and December 31, 2015 at a single center who had a routine, screening HUS performed between 7 and 14 postnatal days ( n = 303). We defined "clinical intervention" as a 7 to 14 postnatal day HUS that was followed by neurosurgical intervention prior to a 36- to 40-week postmenstrual age (PMA) HUS or elective withdrawal of critical care within 30 days of a positive HUS finding...
February 16, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29446073/ccr2-dependent-gr1high-monocytes-promote-kidney-injury-in-shiga-toxin-induced-hemolytic-uremic-syndrome-in-mice
#3
Judith-Mira Pohl, Julia K Volke, Stephanie Thiebes, Alexandra Brenzel, Kerstin Fuchs, Nicolas Beziere, Walter Ehrlichmann, Bernd J Pichler, Anthony Squire, Faikah Gueler, Daniel R Engel
The hemolytic uremic syndrome (HUS) is a life-threatening disease of the kidney that is induced by Shiga toxin-producing E.coli. Major changes in the monocytic compartment and in CCR2-binding chemokines have been observed. However, the specific contribution of CCR2-dependent Gr1high monocytes is unknown. To investigate the impact of these monocytes during HUS, we injected a combination of LPS and Shiga toxin into mice. We observed an impaired kidney function and elevated levels of the CCR2-binding chemokine CCL2 after Shiga toxin/LPS- injection, thus suggesting Gr1high monocyte infiltration into the kidney...
February 14, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29443761/haemolytic-uremic-syndrome-due-to-infection-with-adenovirus-a-case-report-and-literature-review
#4
Victoria Birlutiu, Rares Mircea Birlutiu
RATIONALE: Haemolytic-uremic syndrome is a rare but serious complication of bacterial and viral infections, which is characterized by the triad of: acute renal failure, microangiopathic haemolytic anemia and thrombocytopenia, sometimes severe, requiring peritoneal dialysis. In Europe, hemolytic-uremic syndrome (HUS) in paediatric pathology is primarily caused by Shiga toxin-producing Escherichia coli (STEC) O157, followed by O26. Beside these etiologies, there are other bacterial and viral infections, and also noninfectious ones that have been associated to lead to HUS as well: in the progression of neoplasia, medication-related, post-transplantation, during pregnancy or associated with the antiphospholipid syndrome, systemic lupus erythematosus or family causes with autosomal dominant or recessive inheritance...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29440240/atypical-presentation-of-atypical-haemolytic-uraemic-syndrome
#5
Ratna Basak, Xiaotong Wang, Caitlin Keane, Robert Woroniecki
A 17-year-old girl presented with fever, myalgia, vomiting for 1 month and oliguria and dyspnoea for 4 days. She was tachycardic,hypertensive, with pedal oedema and decreased breath sounds. She had high serum creatinine (3 mg/dL), anaemia, thrombocytopenia, leucocytosis and eosinophilia with schistocytes. Lactate dehydrogenase, transaminases were high , with low haptoglobin and high ferritin (5269 ng/mL). Complement C3/C4 and fibrinogen were normal. Urinalysis showed large blood and protein and stool studies were negative...
February 11, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29434853/intracellular-il-4-and-ifn-%C3%AE-expression-in-inkt-cells-from-patients-with-chronic-lymphocytic-leukemia
#6
Agnieszka Bojarska-Junak, Małgorzata Waldowska, Justyna Woś, Sylwia Chocholska, Iwona Hus, Waldemar Tomczak, Michał Dzik, Marek Hus, Jacek Roliński
Malignant B cells in chronic lymphocytic leukemia serve an essential role in the whole immune response, so their interactions with other immune cells are more complex than observed in solid tumors. The latest study results indicate that the immune dysregulation in chronic lymphocytic leukemia (CLL) also affects a small population of invariant natural killer T cells (iNKT). Using peripheral blood iNKT cells obtained from patients with CLL, the objective of the present study was to assess the intracellular expression of typical cytokines involved in the Th1 (IFN-γ) and Th2 (IL-4) response pathways following stimulation with the iNKT-specific ligand α-galactosylceramide...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29426403/putative-virulence-factors-and-clonal-relationship-of-o174-shiga-toxin-producing-escherichia-coli-isolated-from-human-food-and-animal-sources
#7
Cecilia Cundon, Claudia Carolina Carbonari, Gisela Zolezzi, Marta Rivas, Adriana Bentancor
Shiga toxin-producing Escherichia coli (STEC) is th etiological agent of gastrointestinal diseases as haemorrhagic colitis and haemolytic-uraemic syndrome (HUS). Shiga toxin (Stx) is the main virulence factor. There are two types, Stx1 and Stx2, and several subtypes. Other virulence factors are involved in pathogenesis. While O157:H7 is the predominant serotype, at present non-O157 STEC strains are increasingly recognized as foodborne pathogens worldwide. In Argentina, STEC O174 stands out as an emerging pathogen and is one of the four most prevalent non-O157 STEC serogroups...
February 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29425742/the-analysis-of-the-cerebral-venous-blood-volume-in-cavernous-sinus-using-320-row-multi-detector-ct
#8
Katsuhiro Mizutani, Masahiro Toda, Yumi Yajima, Takenori Akiyama, Hirokazu Fujiwara, Kazunari Yoshida, Masahiro Jinzaki
OBJECTIVES: Functional venous anatomy in the brain has been mostly understood from the morphological and embryological points of view and no published study has directly evaluated the blood flow volume of cerebral small veins. We developed a method to directly evaluate the relative blood volume in small venous channels using multi-detector computed tomography (CT) and applied it to evaluate the blood volume in each tributary of the cavernous sinus, which plays an important role in cerebral venous drainage...
February 6, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29420567/outcome-and-clinical-course-of-ehec-o104-infection-in-hospitalized-patients-a-prospective-single-center-study
#9
J P Albersmeier, J P Bremer, W Dammermann, S Lüth, F Hagenmüller, C Rüther, H Otto, A M Nielsen, U Schumacher, S Ullrich
OBJECTIVES: Shiga-toxin producing O157:H7 Entero Haemorrhagic E. coli [STEC/EHEC] are the most common cause of Haemolytic Uraemic Syndrome [HUS] related to infectious haemorrhagic colitis. Nearly all recommendations on long term treatment of EHEC infections refer to this strain. The 2011 outbreak in Northern Europe was the first of this dimension to be caused by the serotype O104:H4. We report on the 3.5 year follow up of 61 patients diagnosed with symptomatic EHEC O104:H4 infection in spring 2011...
2018: PloS One
https://www.readbyqxmd.com/read/29419916/consensus-opinion-on-diagnosis-and-management-of-thrombotic-microangiopathy-in-australia-and-new-zealand
#10
REVIEW
Lucy Fox, Solomon J Cohney, Joshua Y Kausman, Jake Shortt, Peter D Hughes, Erica M Wood, Nicole M Isbel, Theo de Malmanche, Anne Durkan, Pravin Hissaria, Piers Blombery, Thomas D Barbour
Thrombotic microangiopathy (TMA) arises in a variety of clinical circumstances with the potential to cause significant dysfunction of the kidneys, brain, gastrointestinal tract and heart. TMA should be considered in all patients with thrombocytopenia and anaemia, with an immediate request to the haematology laboratory to look for red cell fragments on a blood film. Whilst TMA of any aetiology generally demands prompt treatment, this is especially so in thrombotic thrombocytopenic purpura (TTP) and atypical haemolytic uraemic syndrome (aHUS), where organ failure may be precipitous, irreversible and fatal...
February 8, 2018: Nephrology
https://www.readbyqxmd.com/read/29413858/abstract-id-247-patient-specific-scatter-reduction-in-sirt-gamma-camera-images
#11
Philipp Matthies, Milad Mesri, Francisco Alves Pinto, Jan Wuestemann, Oliver Grosser
INTRODUCTION: Clinical Bremsstrahlung imaging with gamma cameras or SPECT scanners, for example used in selective internal radiation therapy (SIRT) [1], suffers from low contrast due to a continuous spectrum and a high amount of scatter. Information about the scattering of the radionuclide within the patient's body can be obtained from Monte-Carlo simulations and subsequently being used to improve image quality. METHODS: An MAA-acquisition (CT+SPECT) of a HCC patient with a unifocal uptake in the right liver lobe is segmented (lesion) and loaded into the MC simulation framework GATE [2]...
January 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29413210/escherichia-coli-complications-in-pediatric-critical-care
#12
REVIEW
Suzanne S Puentes, Michele Dunstan
Escherichia coli is a bacterium that is an important part of the intestinal tract; however, it has the potential to become pathogenic. Shiga toxin-producing E coli (STEC) is a leading cause of E coli infections and has led to outbreaks in North America. Transmission is through ingestion of contaminated food sources, and via infected humans and animals. Young children infected with STEC are at high risk for developing hemolytic uremic syndrome (HUS). HUS is a clinical syndrome characterized by macroangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure...
March 2018: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/29404773/dual-energy-ct-a-phantom-comparison-of-different-platforms-for-abdominal-imaging
#13
Thorsten Sellerer, Peter B Noël, Manuel Patino, Anushri Parakh, Sebastian Ehn, Sascha Zeiter, Jasmin A Holz, Johannes Hammel, Alexander A Fingerle, Franz Pfeiffer, David Maintz, Ernst J Rummeny, Daniela Muenzel, Dushyant V Sahani
OBJECTIVES: Evaluation of imaging performance across dual-energy CT (DECT) platforms, including dual-layer CT (DLCT), rapid-kVp-switching CT (KVSCT) and dual-source CT (DSCT). METHODS: A semi-anthropomorphic abdomen phantom was imaged on these DECT systems. Scans were repeated three times for CTDIvol levels of 10 mGy, 20 mGy, 30 mGy and different fat-simulating extension rings. Over the available range of virtual-monoenergetic images (VMI), noise as well as quantitative accuracy of hounsfield units (HU) and iodine concentrations were evaluated...
February 5, 2018: European Radiology
https://www.readbyqxmd.com/read/29397295/glenoid-neck-hounsfield-units-on-computed-tomography-can-accurately-identify-patients-with-low-bone-mineral-density
#14
Kyle E Nappo, Daniel L Christensen, Jared A Wolfe, Scott M Tintle
BACKGROUND: Osteoporosis is a costly and morbid disease with the first presentation often with a fragility fracture. The purpose of this study was to assess whether Hounsfield unit (HU) measurements on shoulder computed tomography could identify patients at risk of osteoporosis and aid in its diagnosis. METHODS: We identified patients who had both a computed tomography scan of the glenoid and a dual-energy x-ray absorptiometry scan. Dual-energy x-ray absorptiometry results and HU measurements of the patients' glenoid were recorded...
January 31, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29395881/postdiarrheal-hemolytic-and-uremic-syndrome-with-severe-multiorgan-involvement-and-associated-early-risk-factors
#15
M Oualha, S Pierrepont, P Krug, C Gitiaux, P Hubert, F Lesage, R Salomon
AIM: Identifying early clinical and biological factors associated with severe forms of postdiarrheal hemolytic uremic syndrome (D+HUS) that may help practitioners determine appropriate treatment. METHODS: This retrospective study was conducted in 49 children with D+HUS between 2001 and 2011. Severe forms were defined as occurrence of one of the following conditions: death, major neurological involvement, cardiovascular involvement, and/or the presence of sequelae (neurological, cardiovascular, pancreatic, or renal)...
January 27, 2018: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29390523/efficacy-of-eculizumab-in-an-adult-patient-with-hiv-associated-hemolytic-uremic-syndrome-a-case-report
#16
Marine Freist, Cyril Garrouste, Nora Szlavik, Paul Coppo, Alexandre Lautrette, Anne Elisabeth Heng
INTRODUCTION: Hemolytic uremic syndrome (HUS) in Human Immunodeficiency Virus (HIV)-positive patients has become a rare cause of kidney injury since the era of highly active antiretroviral therapy (HAART). Plasma exchange and antiretroviral therapy were previously recommended but often failed to achieve remission. We report a case of HUS in a HIV-positive patient treated successfully with eculizumab. CASE SUMMARY: A 52-year-old woman presented to hospital with acute renal failure, thrombocytopenia, anemia, and hypoxemia...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390229/feasibility-of-a-single-contrast-bolus-high-pitch-pulmonary-ct-angiography-protocol-followed-by-low-dose-retrospectively-ecg-gated-cardiac-ct-in-patients-with-suspected-pulmonary-embolism
#17
Julia Carmen Schäfer, Holger Haubenreisser, Mathias Meyer, Joachim Grüttner, Thomas Walter, Martin Borggrefe, Joseph U Schoepf, John W Nance, Stefan O Schönberg, Thomas Henzler
INTRODUCTION:  To prospectively evaluate the feasibility of single contrast bolus high-pitch CT pulmonary angiography (CTPA) subsequently followed by low-dose retrospectively ECG-gated cardiac CT (4D-cCT) in patients with suspected pulmonary embolism (PE) to accurately evaluate right ventricular (RV) function. MATERIALS AND METHODS:  62 patients (33 female, age 65.1 ± 17.5 years) underwent high-pitch CTPA examination with 80cc of iodinated contrast material...
February 1, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29387412/neurological-variability-in-chemotherapy-induced-posterior-reversible-encephalopathy-syndrome-associated-with-thrombotic-microangiopathy-case-reports-and-literature-review
#18
Chen Makranz, Salome Khutsurauli, Yosef Kalish, Ruth Eliahou, Luna Kadouri, John Moshe Gomori, Alexander Lossos
Posterior reversible encephalopathy syndrome (PRES) is a clinical syndrome characterized by headaches, seizures, a confusional state and visual disturbances associated with transient predominantly bilateral posterior white mater magnetic resonance imaging lesions. It is primarily reported in the setting of hypertension, acute renal failure, peripartum eclampsia, autoimmune disease, immunosuppression and chemotherapy. Thrombotic microangiopathy (TMA), including hemolytic uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP) has also been reported as potential PRES inducer...
January 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29385045/an-improved-method-for-the-sensitive-detection-of-shiga-toxin-2-in-human-serum
#19
Xiaohua He, Gianluigi Ardissino, Stephanie Patfield, Luisa W Cheng, Christopher J Silva, Maurizio Brigotti
Shiga toxins (Stx) released by Stx-producing E. coli (STEC) are virulence factors that are most closely 3associated with hemolytic uremic syndrome (HUS), a life-threatening complication of intestinal infections by STEC. Stx have to enter into the circulatory system before they are delivered to target organs and cause damage. The presence of Stx in sera could be a risk indicator for HUS development. However, the detection of Stx, particularly Stx2, has been difficult due to the presence of Stx2-binding components in human serum...
January 31, 2018: Toxins
https://www.readbyqxmd.com/read/29383821/carboxypeptidase-b2-and-n-play-different-roles-in-regulation-of-activated-complements-c3a-and-c5a-in-mouse
#20
J Morser, Z Shao, T Nishimura, Q Zhou, L Zhao, J Higgins, L L K Leung
BACKGROUND: There are two basic carboxypeptidases in plasma. Carboxypeptidase B2 (CPB2) is activated from a circulating zymogen, proCPB2, and carboxypeptidase N (CPN) is constitutively active with both inactivating complement C3a and C5a. AIMS: To test the roles of CPB2 and CPN in complement-driven mouse models of cobra venom factor (CVF) challenge and hemolytic-uremic syndrome (HUS). METHODS: Cpb2-/- , Cpn-/- and wild type (WT) mice were compared in a HUS model induced by Shiga toxin and lipopolysaccharide administration and following CVF administration...
January 31, 2018: Journal of Thrombosis and Haemostasis: JTH
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