1,367 research outputs found

    Endoscopic management of corrosive esophageal stenosis by temporary stent placement

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    Introduction. Ingestion of corrosive substances often causes serious damage to the upper gastrointestinal mucosa, occasionally perforation and, in rare cases, death. Most of these events are accidental, especially in children and the elderly, and voluntary (for suicidal purposes) in adults. If the patient survives the acute episode, the long-term complications are mainly esophageal and/or gastric stenosis and esophageal cancer after 1-2 decades of evolution. Endoscopic treatment of benign esophageal stenosis consists of dilation with Savary bougies and dilation balloon, esophageal stent assembly, with the purpose of restoring esophageal luminal patency. Superior digestive endoscopy plays an important role in the evaluation of benign esophageal stenosis in terms of the severity and the extent of stenosis. Case presentation. We present the case of a 47-yearold patient admitted to our clinic for dysphagia for solid and semi-solid foods. Endoscopy revealed an esophageal stricture due to the voluntary ingestion of caustic substance with suicidal purpose, 9 months before presentation. After multiple sessions of endoscopic dilatation with Savary bougies, an esophageal stent was placed, that solved patient’s dysphagia. Conclusions. Post-caustic esophageal stenosis is a common cause of dysphagia in patients with ingestion of corrosive substances. Patients can benefit from endoscopic esophageal stent placement treatment

    The role of capsule endoscopy in the diagnosis of digestive haemorrhage

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    Gastrointestinal bleeding is a common cause of hospitalization, with a high hospital morbidity and mortality rate, but decreasing compared to previous years due to an important progress in therapeutic endoscopic techniques. It is estimated that 5-7% of gastrointestinal bleedings are of obscure origin, with a normal upper and lower gastrointestinal endoscopy. The capsule endoscopy is the state-of-the-art, non-invasive procedure, providing a fine diagnosis of intestinal lesions, especially those found in the small bowel, difficult to address by other methods. Many studies have been published during the past years regarding the sensibility and outcome of capsule endoscopy in patients with gastrointestinal bleeding, but few underline its definitive role in the diagnosis of digestive bleeding. This review looks at the role of capsule endoscopy in the evaluation of patients with gastrointestinal bleeding from the small bowel and the therapeutic options available

    Quality of life and special issues in women with inflammatory bowel diseases

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    Introduction. The impact of inflammatory bowel diseases (IBD) on the quality of life (QoL) of patients is significant and it has important social and professional consequences. Materials and methods. We aimed to describe the patients’ perspective regarding the impact of IBD on their overall QoL and to evaluate the differences between men and women. An observational cross-sectional study, that included 180 patients with IBD in clinical remission, was conducted. All the patients completed a number of 3 questionnaires in order to evaluate the general aspects of their QoL. A separate questionnaire was created regarding gender-specific issues in women with IBD encounter. Also, particular features such as the incidence of anemia and osteoporosis among IBD patients were documented. The data obtained were analyzed and compared between the two gender-classified groups. Results. According to the Short Inflammatory Bowel Disease Questionnaire (SIBDQ), patients had a general perception of a good QoL, but the impact was higher in women. Fatigue and tiredness were severely perceived almost to the same degree regardless of their gender, whereas anxiety and unemployment were more present in men. No significant differences in women with IBD during the active disease and during disease remission were found. Conclusions. The overall quality of life of IBD patients is affected in many aspects, leading to the deterioration of their social and professional lives, for both men and women, but some aspects remain gender-specific and require a personalized standard of care

    Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

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    This paper presents measurements of the W+μ+νW^+ \rightarrow \mu^+\nu and WμνW^- \rightarrow \mu^-\nu cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13

    Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at √ s = 8 TeV with the ATLAS detector

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    Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of √ s = 8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT > 120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between Emiss T > 150 GeV and Emiss T > 700 GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with either large extra spatial dimensions, pair production of weakly interacting dark matter candidates, or production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presente

    Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector

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    A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of √s=13  TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139  fb−1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015–2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV

    Measurement of VH, H → b b ¯ production as a function of the vector-boson transverse momentum in 13 TeV pp collisions with the ATLAS detector

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    Cross-sections of associated production of a Higgs boson decaying into bottom-quark pairs and an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum. The measurements are performed in kinematic fiducial volumes defined in the `simplified template cross-section' framework. The results are obtained using 79.8 fb-1 of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. All measurements are found to be in agreement with the Standard Model predictions, and limits are set on the parameters of an effective Lagrangian sensitive to modifications of the Higgs boson couplings to the electroweak gauge bosons

    Search for heavy neutral Higgs bosons produced in association with b-quarks and decaying into b-quarks at root s=13 TeV with the ATLAS detector

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    A search for heavy neutral Higgs bosons produced in association with one or two b -quarks and decaying to b -quark pairs is presented using 27.8  fb − 1 of √ s = 13  TeV proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider during 2015 and 2016. No evidence of a signal is found. Upper limits on the heavy neutral Higgs boson production cross section times its branching ratio to b ¯ b are set, ranging from 4.0 to 0.6 pb at 95% confidence level over a Higgs boson mass range of 450 to 1400 GeV. Results are interpreted within the two-Higgs-doublet model and the minimal supersymmetric Standard Model

    Erratum: Measurement of angular and momentum distributions of charged particles within and around jets in Pb + Pb and pp collisions at √sNN = 5.02 TeV with the ATLAS detector [Phys. Rev. C 100 , 064901 (2019)]

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