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https://www.readbyqxmd.com/read/28210706/single-balloon-enteroscopy-efficacy-and-degree-of-concordance-with-noninvasive-evaluation-of-small-bowel
#1
Margarida Marques, João Antunes, Rosa Coelho, Hélder Cardoso, Filipe Vilas Boas, Armando Ribeiro, Guilherme Macedo
Background and study aims Clinical impact of single-balloon enteroscopy (SBE) is fairly known, as well as its diagnostic yield comparing with other small bowel gastrointestinal investigations. This study represents a contribution to better understand it and is designed to evaluate SBE efficacy and degree of concordance with previous evaluation of small bowel. Patients and methods This is a single-center retrospective study of patients that underwent SBE with suspected small bowel disease based on non-invasive imaging...
February 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28205433/a-battery-operated-atomic-emission-analyzer-for-waterborne-arsenic-based-on-atmospheric-pressure-glow-discharge-excitation-source
#2
Chun Yang, Dong He, Zhenli Zhu, Huan Peng, Zhifu Liu, Guojun Wen, Jianghao Bai, Hongtao Zheng, Shenghong Hu, Yanxin Wang
In this paper, a sensitive atomic emission spectrometer (AES) based on a new low power and low argon consumption (< 8 W, 100 mL min(-1)) miniature direct current (DC) atmospheric pressure glow discharge (APGD) plasma (3 mm×5 mm) excitation source was developed for the determination of arsenic in water samples. In this method, arsenic in water was reduced to AsH3 by hydride generation (HG), which was then transported to the APGD source for excitation and detected by a compact CCD (charge-coupled device) microspectrometer...
February 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28197412/bronchoscopic-diagnosis-and-treatment-of-primary-tracheobronchial-amyloidosis-a-retrospective-analysis-from-china
#3
Xiaoxiao Lu, Bixiu He, Ge Wang, Baimei He, Lijing Wang, Qiong Chen
Objective. To assess the value of bronchoscopy in the diagnosis and treatment of primary tracheobronchial amyloidosis (TBA), in order to reduce misdiagnosis rates and improve prognosis. Methods. Clinical data of 107 patients with TBA reported from 1981 to 2015 in China were retrospectively analyzed for clinical features, bronchoscopic manifestations, pathologies, treatments, and outcomes. Results. 105 of 107 TBA patients were pathologically confirmed by bronchoscopy. Main bronchoscopic manifestations of TBA were single or multiple nodules and masses within tracheobronchial lumens; local or diffuse luminal stenosis and obstruction; luminal wall thickening and rigidity; rough or uneven inner luminal walls; congestion and edema of mucosa, which was friable and prone to bleeding upon touch; and so forth...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28195875/endoscopic-variceal-ligation-combined-with-argon-plasma-coagulation-versus-ligation-alone-for-the-secondary-prophylaxis-of-variceal-bleeding-a-systematic-review-and-meta-analysis
#4
Xiaoyan Li, Tingting Jiang, Jian Gao
Endoscopic variceal ligation (EVL) is often recommended as an effective method for the treatment of esophageal varices, despite the important tendency of variceal recurrence. Recent studies indicate that combining EVL with argon plasma coagulation (APC) may be a more effective therapy than ligation alone. To investigate these findings, we carried out a systematic review and meta-analysis to compare the safety and efficacy of EVL combined with APC versus ligation alone for the secondary prophylaxis of esophageal variceal hemorrhage...
February 13, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28167819/growth-inducing-effects-of-argon-plasma-on-soybean-sprouts-via-the-regulation-of-demethylation-levels-of-energy-metabolism-related-genes
#5
Jiao Jiao Zhang, Jin Oh Jo, Do Luong Huynh, Raj Kumar Mongre, Mrinmoy Ghosh, Amit Kumar Singh, Sang Baek Lee, Young Sun Mok, Park Hyuk, Dong Kee Jeong
This study was conducted to determine the effects of argon plasma on the growth of soybean [Glycine max (L.) Merr.] sprouts and investigate the regulation mechanism of energy metabolism. The germination and growth characteristics were modified by argon plasma at different potentials and exposure durations. Upon investigation, plasma treatment at 22.1 kV for 12 s maximized the germination and seedling growth of soybean, increasing the concentrations of soluble protein, antioxidant enzymes, and adenosine triphosphate (ATP) as well as up-regulating ATP a1, ATP a2, ATP b1, ATP b2, ATP b3, target of rapamycin (TOR), growth-regulating factor (GRF) 1-6, down-regulating ATP MI25 mRNA expression, and increasing the demethylation levels of the sequenced region of ATP a1, ATP b1, TOR, GRF 5, and GRF 6 of 6-day-old soybean sprouts...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28156663/evaluation-of-combined-argon-plasma-coagulation-and-savary-bougienage-for-the-relief-of-dysphagia-of-esophageal-squamous-cancer-patients-in-the-end-of-life
#6
Caihong Dong, Tanyou Shan, Xiaozhi Yuan, Shuoguo Li, Xuezhen Ding, Shegan Gao
: 214 Background: To relieve the dysphagia is a critical treatment for advanced esophageal cancer patients' palliative care in their end-of-life. The ideal way is to satisfy both the patient's nutrition supplement and self-taste. Although several endoscopic dilation techniques have been reported, the high incidence of dysphagia quickly relapsing remains. The aim of this study was to compare the effect of Argon Plasma Coagulation (APC) combined with Savary bougienage (SB) and SB alone for the relief of dysphagia of esophageal squamous cancer in the end-of-life...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28153266/optimization-of-high-resolution-continuum-source-graphite-furnace-atomic-absorption-spectrometry-for-direct-analysis-of-selected-trace-elements-in-whole-blood-samples
#7
Magdalena Wójciak-Kosior, Wojciech Szwerc, Maciej Strzemski, Zoltan Wichłacz, Jan Sawicki, Ryszard Kocjan, Michał Latalski, Ireneusz Sowa
Trace analysis plays an important role in medicine for diagnosis of various disorders; however, the appropriate sample preparation is required mostly including mineralization. Although graphite furnace atomic absorption spectrometry (GF AAS) allows the investigation of biological samples such as blood, serum, and plasma without this step, it is rarely used for direct analysis because the residues of the rich organic matrix inside the furnace are difficult to remove and this may cause spectral/matrix interferences and decrease the lifetime of the graphite tube...
April 1, 2017: Talanta
https://www.readbyqxmd.com/read/28147698/double-flush-mounted-probe-diagnostics-and-data-analysis-technique-for-argon-glow-discharge-plasma
#8
Pengcheng Yu, Yu Liu, Jinxiang Cao, Liang Xu, Xiao Zhang, Zhongkai Zhang, Pi Wang
In this work, a double flush-mounted probe for measuring plasma parameters was designed and fabricated. The method to determine the plasma density and electron temperature using a floating double flush-mounted probe was characterized. To validate this method, the measurement results in an argon glow discharge plasma, including the electron density and temperature measurements, were compared with those obtained using a single probe and a double probe. Results indicate that the electron density measured using the double flush-mounted probe agrees well with those measured using other probes; the effective electron temperature values are also consistent within the admissible error range...
January 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28147633/a-low-power-miniaturized-dielectric-barrier-discharge-based-atmospheric-pressure-plasma-jet
#9
G Divya Deepak, N K Joshi, Dharmendra Kumar Pal, Ram Prakash
In this paper, a dielectric barrier discharge plasma based atmospheric pressure plasma jet has been generated in a floating helix and floating end ring electrode configuration using argon and helium gases. This configuration is subjected to a range of supply frequencies (10-25 kHz) and supply voltages (2-6 kV) at a fixed rate of gas flow rate (i.e., 1 l/min). The electrical characterization of the plasma jet has been carried out using a high voltage probe and current transformer. The current-voltage characteristics have been analyzed, and the consumed power has been estimated at different applied combinations for optimum power consumption at maximum jet length...
January 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28144074/flexible-bronchoscopic-argon-plasma-coagulation-for-management-of-massive-hemoptysis-in-bronchial-dieulafoy-s-disease
#10
Karan Madan, Ashesh Dhungana, Vijay Hadda, Anant Mohan, Randeep Guleria
Dieulafoy's disease is an uncommon condition, the usual site of occurrence being the gastrointestinal tract. The condition refers to the presence of a dysplastic submucosal artery with mucosal vascular branches that has propensity to cause recurrent bleeding. Dieulafoy's disease of the bronchus is rare. Herein, we describe the case of a 26-year-old male who presented with recurrent bouts of hemoptysis and bronchial Dieulafoy's disease was diagnosed. Flexible bronchoscopy was performed, and argon plasma coagulation (APC) of the bleeding lesion was done...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28142136/feasibility-and-safety-of-a-transthoracic-pneumostoma-airway-bypass-in-severe-emphysema-patients
#11
Gregory I Snell, Lynda Holsworth, Sadie Khorramnia, Glen P Westall, Trevor J Williams, Silvana Marasco, Julian H Gooi
BACKGROUND: Emphysema is characterised by airflow obstruction, hyperinflation, and resultant dyspnoea. It is worth investigating whether decompression improves lung mechanics and enhances quality of life (QoL). OBJECTIVES: The purpose of this study was to describe the feasibility and safety of creating a transthoracic pneumostoma to enable lung reduction. METHODS: A transthoracic 10-mm diameter Portaero Access Tube (Portaero™, Cupertino, CA, USA) was implanted via a third intercostal space incision in 15 severe emphysema patients [mean age 63 years, forced expiratory volume in 1 s 54% predicted, diffusing capacity for carbon monoxide 31% predicted, residual volume 246% predicted, Six-Minute Walk Test 296 m]...
February 1, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28123486/comparison-of-the-efficacy-of-four-endobronchial-ablation-techniques-in-dogs
#12
Linrong Tong, Koudong Zhang, Haidong Huang, Wei Zhang, Xingxing Zhang, Qin Wang, Qiang Li, Chong Bai
The present study aimed to evaluate the safety and efficacy of four commonly used ablation techniques, namely neodymium-doped yttrium aluminium garnet (Nd:YAG) laser therapy, argon plasma coagulation (APC), high-frequency electrocautery and CO2 cryotherapy. The techniques were performed at various powers or impedance settings, and for various durations, on the trachea of beagle dogs. Pathological changes of the tracheal wall were assessed by bronchoscopy. The endoscopic gross appearance of lesions induced by ablation treatments was consistent with the histopathological changes...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28117304/effects-of-different-sterilization-methods-on-the-physico-chemical-and-bioresponsive-properties-of-plasma-treated-polycaprolactone-films
#13
Rouba Ghobeira, Charlot Philips, Heidi Declercq, Pieter Cools, Nathalie De Geyter, Ria Cornelissen, Rino Morent
For most tissue engineering applications, surface modification and sterilization of polymers are critical aspects determining the implant success. The first part of this study is thus dedicated to modifying polycaprolactone (PCL) surfaces via plasma treatment using a medium pressure dielectric barrier discharge, while the second part focuses on the sterilization of plasma-modified PCL. Chemical and physical surface changes are examined making use of water contact angle goniometry (WCA), x-ray photoelectron spectroscopy and atomic force microscopy...
January 24, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28107762/thulium-laser-in-interventional-endoscopy-animal-and-human-studies
#14
Gian E Tontini, Helmut Neumann, Luca Pastorelli, Luisa Spina, Flaminia Cavallaro, Paola Soriani, Alessandro Rimondi, Barbara Bruni, Claudio Clemente, Filippo Fagnani, Pavlos Lagoussis, Luca Carmignani, Maurizio Vecchi
Background and study aims The thulium laser system (TLS) is an emerging surgical tool. The 2-μm wavelength provides a confined coagulation depth (0.2 - 0.4 mm) to reduce the potential for inadvertent injuries. For the first time ever, we assessed TLS feasibility for endoscopic hemostasis ex vivo in pigs. In addition, we performed the first in vivo hemostatic treatments in humans. Patients and methods Tissue damage induced by TLS using different settings and optical fibers was compared to that from argon plasma coagulation (APC) in established ex vivo animal models...
January 20, 2017: Endoscopy
https://www.readbyqxmd.com/read/28107617/fabrication-of-nanostructured-mesoporous-germanium-for-application-in-laser-desorption-ionization-mass-spectrometry
#15
Hazem H Abdelmaksoud, Taryn M Guinan, Nicolas H Voelcker
Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) is a high-throughput analytical technique ideally suited for small-molecule detection from different bodily fluids (e.g., saliva, urine, and blood plasma). Many SALDI-MS substrates require complex fabrication processes and further surface modifications. Furthermore, some substrates show instability upon exposure to ambient conditions and need to be kept under special inert conditions. We have successfully optimized mesoporous germanium (meso-pGe) using bipolar electrochemical etching and efficiently applied meso-pGe as a SALDI-MS substrate for the detection of illicit drugs such as in the context of workplace, roadside, and antiaddictive drug compliance...
February 6, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28101361/bronchoscopic-resection-of-bronchial-angiolipoma-a-rare-case-report
#16
Zhiqiang Wu, Hongli Wan, Min Shi, Ming Li, Zhanpeng Wang, Caixia Yang, Wei Gao, Qingxin Li
Angiolipoma is a rare benign tumor that most commonly occurs in the extremities and trunk. Angiolipomas originating in the bronchial tree are extremely rare. To the best of our knowledge, only one such case, confined to the bronchus intermedius, has been reported to date. The present study describes the case of an asymptomatic 74-year-old man with a yellowish round mass incidentally discovered at the orifice of the right lower bronchus during a routine health check. The tumor originated from the membranous part of the right inferior bronchus...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28099364/endoscopic-retrieval-of-gastric-trichophytobezoar-case-report-of-a-12-year-old-girl-with-trichophagia
#17
Jiu-Ling Zhao, Wei-Chuan Zhao, Yu-Shui Wang
RATIONALE: Trichophytobezoars, which are composed of hair and plant fibers, are usually located in the stomach. They are often associated with trichophagia and trichotillomania. The most commonly reported methods of trichophytobezoar treatment are open surgery and laparoscopic retrieval; there are few reports of endoscopic removal of trichophytobezoars. PATIENT CONCERNS AND DIAGNOSES: Twelve-year-old girl presented with a 3-day history of increasing upper abdominal pain, anorexia, and postprandial emesis...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28094986/improving-internal-cell-colonization-of-porous-scaffolds-with-chemical-gradients-produced-by-plasma-assisted-approaches
#18
Eloisa Sardella, Rania A Salama, Gihan H Waly, A Nour Habib, Pietro Favia, Roberto Gristina
Cell colonization of the surrounding environment is a very significant process in both physiological and pathological events. In order to understand the tissue regeneration process and thereby provide guidance principles for designing new biomaterials, it is of paramount importance to study the cell colonization in the presence of physical, chemical, and biological cues. Flat "gradient" materials are generally used with this purpose. Three dimensional gradient scaffolds mimicking more precisely the situation in vivo are somewhat more complex to fabricate and characterize...
January 30, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28091893/endoscopic-management-of-eroded-bands-following-banded-gastric-bypass-with-video
#19
Hany Shehab, Khaled Gawdat
BACKGROUND: Banded-gastric bypass is a highly effective bariatric procedure, yet the possibility of band erosion remains a significant drawback. Surgical removal of eroded bands may be associated with significant morbidity. In this study, we assess the efficacy and safety of a solely peroral endoscopic approach for the management of eroded bands in patients with a banded-gastric bypass. MATERIALS AND METHODS: Starting January 2012, all patients with banded-gastric bypass and an eroded band were subjected to an attempt at peroral endoscopic removal using endoscopic scissors and/or argon plasma coagulation (APC), regardless of the circumference of band eroding inside the lumen...
January 13, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28091842/squamous-cell-dysplasia-in-the-proximal-rectum-of-three-patients-treated-for-ulcerative-colitis-on-immunomodulators
#20
James G Connolly, Stephen E Goldstone
BACKGROUND: Anal canal high-grade squamous intraepithelial lesion (HSIL) is the precursor to anal cancer. Immunocompromised patients are at increased risk and disease is usually within 3 cm from the anal verge. High-resolution anoscopy (HRA) with an 8-cm anoscope is used to identify and guide cautery treatment of HSIL. PURPOSE: We report three patients with a long-term history of ulcerative colitis (UC) treated with systemic immunomodulators who developed proximally located rectal HSIL...
January 13, 2017: International Journal of Colorectal Disease
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