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https://www.readbyqxmd.com/read/28822373/masquerading-as-sigmoid-adenocarcinoma-a-unique-presentation-of-high-grade-serous-carcinoma-arising-from-endometriosis
#1
Wali R Johnson, Clark D Kensinger, Megan A Desai, Alexander T Hawkins
No abstract text is available yet for this article.
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28820301/translabyrinthine-microsurgical-resection-of-small-vestibular-schwannomas
#2
Marc S Schwartz, Gregory P Lekovic, Mia E Miller, William H Slattery, Eric P Wilkinson
OBJECTIVE Translabyrinthine resection is one of a number of treatment options available to patients with vestibular schwannomas. Though this procedure is hearing destructive, the authors have noted excellent clinical outcomes for patients with small tumors. The authors review their experience at a tertiary acoustic neuroma referral center in using the translabyrinthine approach to resect small vestibular schwannomas. All operations were performed by a surgical team consisting of a single neurosurgeon and 1 of 7 neurotologists...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28818827/endovascular-treatment-of-dural-arteriovenous-fistulas-of-the-transverse-and-sigmoid-sinuses-using-transarterial-balloon-assisted-embolization-combined-with-transvenous-balloon-protection-of-the-venous-sinus
#3
E Piechowiak, F Zibold, T Dobrocky, P J Mosimann, D Bervini, A Raabe, J Gralla, P Mordasini
BACKGROUND AND PURPOSE: Combined transarterial balloon-assisted endovascular embolization with double-lumen balloon microcatheters and concomitant transvenous balloon protection was described as a promising treatment technique for dural arteriovenous fistulae of the transverse and sigmoid sinus. The purpose of this study was to evaluate the technical efficacy and safety of this combined treatment technique. MATERIALS AND METHODS: Nine consecutive patients presenting with dural arteriovenous fistulas of the transverse and sigmoid sinuses underwent combined transarterial and transvenous balloon-assisted endovascular embolization...
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28814777/the-microbial-ecosystem-distinguishes-chronically-diseased-tissue-from-adjacent-tissue-in-the-sigmoid-colon-of-chronic-recurrent-diverticulitis-patients
#4
Kathleen M Schieffer, Kate Sabey, Justin R Wright, David R Toole, Rebecca Drucker, Vasily Tokarev, Leonard R Harris, Sue Deiling, Melanie A Eshelman, John P Hegarty, Gregory S Yochum, Walter A Koltun, Regina Lamendella, David B Stewart
Diverticular disease is commonly associated with the older population in the United States. As individual's age, diverticulae, or herniation of the mucosa through the colonic wall, develop. In 10-25% of individuals, the diverticulae become inflamed, resulting in diverticulitis. The gut ecosystem relies on the interaction of bacteria and fungi to maintain homeostasis. Although bacterial dysbiosis has been implicated in the pathogenesis of diverticulitis, associations between the microbial ecosystem and diverticulitis remain largely unstudied...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811810/what-is-done-when-endoscopic-examination-reveals-borderline-bowel-ischemia-in-patients-with-sigmoid-volvulus
#5
Sabri Selcuk Atamanalp, Refik Selim Atamanalp
Sigmoid volvulus (SV) is a rare colonic obstruction in which the sigmoid colonwraps around itself. The principal strategy for the treatment of uncomplicated SV is emergency endoscopic detorsion, while emergency surgery is needed in complicated SV with bowel gangrene, bowel perforation, peritonitis, or unsuccessful endoscopic treatment. In the endoscopic examination of SV, endoscopic detorsion is performed if the bowels are viable, while emergency surgery is needed if the bowels are gangrenous. However, the treatment approach is not clear when endoscopic examination reveals borderline bowel ischemia, and in this short report, the possible treatment strategies are discussed...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28807748/dosimetric-analysis-and-preliminary-clinical-result-of-image-guided-brachytherapy-with-or-without-hybrid-technique-for-cervical-cancer-using-varisource-titanium-ring-applicator-with-siriraj-ring-cap
#6
Pittaya Dankulchai, Suphalerk Lohasammakul, Janjira Petsuksiri, Pitchayut Nakkrasae, Lalida Tuntipumiamorn, Chumpot Kakanaporn, Yaowalak Chansilpa
PURPOSE: Titanium ring cap applicator (VariSource) was applied in treating cervical cancer patients by using image-guided brachytherapy (IGBT). However, its sizes appeared to be relatively large for most of our patients. Thus, we have developed a specific applicator "Siriraj Ring Cap," which is slightly smaller and more suitable for our patients. This study was to evaluate effectiveness of this equipment. METHODS AND MATERIALS: Locally advanced cervical cancer patients were treated with external beam radiation therapy with or without concomitant chemotherapy...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28804643/local-staging-of-sigmoid-colon-cancer-using-mri
#7
Claus Dam, Jan Lindebjerg, Anders Jakobsen, Lars Henrik Jensen, Hans Rahr, Søren Rafael Rafaelsen
BACKGROUND: An accurate radiological staging of colon cancer is crucial to select patients who may benefit from neoadjuvant chemotherapy. PURPOSE: To evaluate the diagnostic accuracy of preoperative magnetic resonance imaging (MRI) in identifying locally advanced sigmoid colon cancer, poor prognostic factors, and the inter-observer variation of the tumor apparent diffusion coefficient (ADC) values of diffusion-weighted imaging (DWI). MATERIAL AND METHODS: Using 1...
July 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28803934/doses-durations-and-gender-predict-vancomycin-induced-kidney-injury-in-pre-clinical-studies
#8
J Nicholas O'Donnell, Nathaniel J Rhodes, Cristina M Miglis, Lejla Catovic, Jiajun Liu, Cameron Cluff, Gwen Pais, Sean Avedissian, Medha Joshi, Brooke Griffin, Walter Prozialeck, Anil Gulati, Thomas P Lodise, Marc H Scheetz
Background While vancomycin's exposure-dependent efficacy thresholds have been probed, less is known regarding acute kidney injury (AKI) thresholds for vancomycin. Sensitive urinary biomarkers such as Kidney injury molecule 1 (KIM-1) have shown high sensitivity and specificity for vancomycin-associated AKI. We sought to determine if dose-response curves existed with urinary KIM-1. Secondarily, we sought to evaluate the impact of therapy duration and gender status on observed relationships. Methods A systematic review was conducted via PubMed/MEDLINE...
August 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28803449/prospective-comparison-between-magnetic-resonance-imaging-and-computed-tomography-in-colorectal-cancer-staging
#9
Frederick H X Koh, Ker-Kan Tan, Lynette L S Teo, Bertrand W L Ang, Yee-Liang Thian
BACKGROUND: Diffusion-weighted (DW) imaging is a functional magnetic resonance imaging (MRI) technique that detects lesions with high cellularity, such as malignant tumours. This prospective study was performed to compare the accuracy of DW-MRI with multidetector computed tomography (MDCT) in staging of colorectal cancer. METHODS: Thirty patients with histologically proven colorectal cancer were prospectively recruited. Each patient underwent both MDCT and DW-MRI of the abdomen-pelvis for primary staging...
August 13, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28801577/effects-of-disulfide-bridges-and-backbone-connectivity-on-water-sorption-by-protein-matrices
#10
Sang Beom Kim, Rakesh S Singh, Prem K C Paul, Pablo G Debenedetti
Understanding the water sorption behavior of protein powders is important in applications such as the preservation of protein-based pharmaceuticals. Most globular proteins exhibit a characteristic sigmoidal water adsorption isotherm at ambient conditions. However, it is not well understood how water sorption behavior is influenced by intrinsic factors that are related to structural properties of proteins. We investigate computationally how structural constraints on proteins influence the water sorption isotherms of amorphous protein powders...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801570/the-buckling-instability-of-aggregating-red-blood-cells
#11
Daniel Flormann, Othmane Aouane, Lars Kaestner, Christian Ruloff, Chaouqi Misbah, Thomas Podgorski, Christian Wagner
Plasma proteins such as fibrinogen induce the aggregation of red blood cells (RBC) into rouleaux, which are responsible for the pronounced shear thinning behavior of blood, control the erythrocyte sedimentation rate (ESR) - a common hematological test - and are involved in many situations of physiological relevance such as structuration of blood in the microcirculation or clot formation in pathological situations. Confocal microscopy is used to characterize the shape of RBCs within rouleaux at equilibrium as a function of macromolecular concentration, revealing the diversity of contact zone morphology...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800662/jugular-foramen-meningioma-with-transverse-and-sigmoid-sinuses-invasion-and-jugular-vein-extension
#12
Jeremy Brodard, Ivan Radovanovic, Ivan Cabrilo, Carlo Schaller
No abstract text is available yet for this article.
August 11, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28798290/bradycardia-and-hypothermia-complicating-azithromycin-treatment
#13
Kerri Benn, Sam Salman, Madhu Page-Sharp, Timothy M E Davis, Jim P Buttery
BACKGROUND Azithromycin is a macrolide antibiotic widely used to treat respiratory, urogenital, and other infections. Gastrointestinal upset, headache, and dizziness are common adverse effects, and prolongation of the rate-corrected electrocardiographic QT interval and malignant arrhythmias have been reported. There are rare reports of bradycardia and hypothermia but not in the same patient. CASE REPORT A 4-year-old boy given intravenous azithromycin as part of treatment for febrile neutropenia complicating leukemia chemotherapy developed hypothermia (rectal temperature 35...
August 11, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28797037/the-world-s-user-generated-road-map-is-more-than-80-complete
#14
Christopher Barrington-Leigh, Adam Millard-Ball
OpenStreetMap, a crowdsourced geographic database, provides the only global-level, openly licensed source of geospatial road data, and the only national-level source in many countries. However, researchers, policy makers, and citizens who want to make use of OpenStreetMap (OSM) have little information about whether it can be relied upon in a particular geographic setting. In this paper, we use two complementary, independent methods to assess the completeness of OSM road data in each country in the world. First, we undertake a visual assessment of OSM data against satellite imagery, which provides the input for estimates based on a multilevel regression and poststratification model...
2017: PloS One
https://www.readbyqxmd.com/read/28796735/is-the-failure-of-laparoscopic-peritoneal-lavage-predictable-in-hinchey-iii-diverticulitis-management
#15
Tristan Greilsamer, Emeric Abet, Guillaume Meurette, Michel Comy, Antoine Hamy, Paul-Antoine Lehur, Aurélien Venara, Emilie Duchalais
BACKGROUND: Laparoscopic peritoneal lavage is an alternative to sigmoid resection in Hinchey III diverticulitis (generalized purulent peritonitis). The main limitation of laparoscopic peritoneal lavage is the higher rate of reoperation for persistent sepsis in comparison with sigmoid resection. OBJECTIVE: The purpose of the current study was to identify risk factors for laparoscopic peritoneal lavage failure in patients who have Hinchey III diverticulitis. DESIGN: This was a retrospective multicenter study...
September 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28794574/pseudodidymellaceae-fam-nov-phylogenetic-affiliations-of-mycopappus-like-genera-in-dothideomycetes
#16
A Hashimoto, M Matsumura, K Hirayama, R Fujimoto, K Tanaka
The familial placement of four genera, Mycodidymella, Petrakia, Pseudodidymella, and Xenostigmina, was taxonomically revised based on morphological observations and phylogenetic analyses of nuclear rDNA SSU, LSU, tef1, and rpb2 sequences. ITS sequences were also provided as barcode markers. A total of 130 sequences were newly obtained from 28 isolates which are phylogenetically related to Melanommataceae (Pleosporales, Dothideomycetes) and its relatives. Phylogenetic analyses and morphological observation of sexual and asexual morphs led to the conclusion that Melanommataceae should be restricted to its type genus Melanomma, which is characterised by ascomata composed of a well-developed, carbonaceous peridium, and an aposphaeria-like coelomycetous asexual morph...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28793190/long-term-uptake-of-phenol-water-vapor-follows-similar-sigmoid-kinetics-on-pre-hydrated-organic-matter-and-clay-rich-soil-sorbents
#17
Mikhail Borisover, Nadezhda Bukhanovsky, Marcos Lado Lado
Typical experimental time frames allowed for equilibrating water-organic vapors with soil sorbents might lead to overlooking slow chemical reactions finally controlling a thermodynamically stable state. In this work, long-term gravimetric examination of kinetics covering about 4000 hours was performed for phenol-water vapor interacting with four materials pre-equilibrated at three levels of air relative humidity (RHs 52, 73 and 92%). The four contrasting sorbents included an organic matter (OM)-rich peat soil, an OM-poor clay soil, a hydrophilic Aldrich humic acid salt and water-insoluble leonardite...
August 9, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28791762/reversibility-dependent-photovoltammetric-behaviors-of-electroactive-compounds-on-cds-graphene-hybrid-film-electrode
#18
Xin Liu, Yuhan Zhu, Kai Yan, Jingdong Zhang
Photovoltammetric behaviors of irreversible, quasi-reversible and reversible electrochemical systems represented by 2,4-dichlophenol (DCP), hydroquinone (HQ) and K3[Fe(CN)6], respectively, were investigated on a CdS-graphene hybrid film electrode. The cyclic voltammetric (CV) curves of HQ and K3[Fe(CN)6] showing a pair of redox peaks became sigmoidal in shape under visible light irradiation. In contrast, the CV curve shape of DCP showing an oxidation peak was not changed under photoirradiation, although the oxidation peak current was enhanced by the photoelectrocatalysis...
August 8, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28791424/-to-stent-or-not-to-stent-immediate-emergency-surgery-with-laparoscopic-radical-colectomy-with-cme-and-primary-anastomosis-is-feasible-for-obstructing-left-colon-carcinoma
#19
Salomone Di Saverio, Arianna Birindelli, Edoardo Segalini, Matteo Novello, Anna Larocca, Francesco Ferrara, Gian Andrea Binda, Marco Bassi
Great debate exists in the initial acute management of large bowel obstruction from obstructing left colon carcinoma. While endoscopic stenting is well established as the first approach in the setting of palliative care of patients with advanced metastatic disease as well as a bridge to elective surgery in elderly patients who have an increased risk of postoperative mortality (age >70 years and/or ASA status ≥3), controversies exist regarding oncological safety and long-term outcomes of endoscopic colonic stenting in younger patients and ESGE Guidelines do not recommend SEMS placement in patients <70 and fit for curative surgery...
August 8, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28790093/aggressive-large-cell-neuroendocrine-carcinoma-of-the-sigmoid-colon-in-a-patient-with-ulcerative-colitis
#20
Patrick Stoner, Taban Ghaffaripour, David Cohen
Colonic inflammation seen in inflammatory bowel disease (IBD) predisposes to the development of colorectal adenocarcinoma. In contrast, colorectal neuroendocrine carcinomas (NECs) have rarely been reported in the setting of IBD, and no definitive relationship between these tumours and IBD has been established. Dysplasia from chronic inflammation leading to neuroendocrine cell differentiation may be responsible for NEC development, though this finding has not been seen consistently. We present a case of large-cell neuroendocrine carcinoma of the sigmoid colon in a 65-year-old woman with long-standing ulcerative colitis...
August 7, 2017: BMJ Case Reports
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