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https://www.readbyqxmd.com/read/28096057/the-five-year-survival-rate-after-endoscopic-submucosal-dissection-for-superficial-esophageal-squamous-cell-neoplasia
#1
Yasuaki Nagami, Masaki Ominami, Masatsugu Shiba, Hiroaki Minamino, Shusei Fukunaga, Natsuhiko Kameda, Satoshi Sugimori, Hirohisa Machida, Tetsuya Tanigawa, Hirokazu Yamagami, Toshio Watanabe, Kazunari Tominaga, Yasuhiro Fujiwara, Tetsuo Arakawa
BACKGROUND: Endoscopic submucosal dissection (ESD) is a widely accepted procedure for superficial esophageal squamous cell neoplasia (ESCN) because of a high complete resection rate. However, there were a few reports about the long-term outcomes of these patients due to short follow-up periods. AIMS: We aimed to evaluate the 5-year survival after ESD for superficial ESCN. METHODS: This was a retrospective cohort study performed at a single institution...
December 21, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28094364/effect-of-electron-spectral-diffusion-on-static-dynamic-nuclear-polarization-at-7-tesla
#2
Alisa Leavesley, Daphna Shimon, Ting Ann Siaw, Akiva Feintuch, Daniella Goldfarb, Shimon Vega, Ilia Kaminker, Songi Han
Here, we present an integrated experimental and theoretical study of (1)H dynamic nuclear polarization (DNP) of a frozen aqueous glass containing free radicals at 7 T, under static conditions and at temperatures ranging between 4 and 20 K. The DNP studies were performed with a home-built 200 GHz quasi-optics microwave bridge, powered by a tunable solid-state diode source. DNP using monochromatic and continuous wave (cw) irradiation applied to the electron paramagnetic resonance (EPR) spectrum of the radicals induces the transfer of polarization from the electron spins to the surrounding nuclei of the solvent and solutes in the frozen aqueous glass...
January 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28090228/evaluation-of-radiation-dose-received-by-premature-neonates-admitted-to-neonatal-intensive-care-unit
#3
Mohmmadreza Aramesh, Kobra Aria Zanganeh, Masoud Dehdashtian, Arash Malekian, Jafar Fatahiasl
BACKGROUND: This study aimed to evaluate the radiation dose received by premature neonates using diagnostic radiographies. METHODS: This cross-sectional study was conducted on 116 premature neonates with gestational age from 25 to 37 weeks; with the diagnosis of neonatal respiratory distress syndrome (NRDS) and tachypnea, they were admitted to a neonatal intensive care unit (NICU) at Ahvaz Imam Khomeini Hospital in 2015. For assessing the dose received, the model GR-200 thermoluminescent dosimeter (TLD) was used...
February 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28078115/usefulness-and-feasibility-of-endoscopic-submucosal-dissection-for-colorectal-tumor-a-nationwide-multicenter-retrospective-study-in-korea
#4
Ji Hye Kim, Il Hyun Baek, Kyoung Oh Kim, Hyun Joo Jang, Gwang Ho Baik, Chang Kyun Lee, Kyeong Won Min
BACKGROUND: Detection rate of precursor lesion of colorectal cancer and early colon cancer have recently been rising because of increased screening endoscopy and increased incidence of colorectal cancer. Endoscopic submucosal dissection (ESD) technique has been reported to be useful in the treatment of such superficial lesions in colon. However, nationwide multicenter study for usefulness and feasibility of colorectal ESD is still limited. METHODS: From January 2009 to February 2014, colorectal ESD data performed at nationwide university hospitals were enrolled in retrospective design...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28077889/differential-diagnosis-of-erythmato-squamous-diseases-using-classification-and-regression-tree
#5
Keivan Maghooli, Mostafa Langarizadeh, Leila Shahmoradi, Mahdi Habibi-Koolaee, Mohamad Jebraeily, Hamid Bouraghi
INTRODUCTION: Differential diagnosis of Erythmato-Squamous Diseases (ESD) is a major challenge in the field of dermatology. The ESD diseases are placed into six different classes. Data mining is the process for detection of hidden patterns. In the case of ESD, data mining help us to predict the diseases. Different algorithms were developed for this purpose. OBJECTIVE: we aimed to use the Classification and Regression Tree (CART) to predict differential diagnosis of ESD...
October 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28075392/a-distance-detector-with-a-strip-magnetic-mosfet-and-readout-circuit
#6
Guo-Ming Sung, Wen-Sheng Lin, Hsing-Kuang Wang
This paper presents a distance detector composed of two separated metal-oxide semiconductor field-effect transistors (MOSFETs), a differential polysilicon cross-shaped Hall plate (CSHP), and a readout circuit. The distance detector was fabricated using 0.18 μm 1P6M Complementary Metal-Oxide Semiconductor (CMOS) technology to sense the magnetic induction perpendicular to the chip surface. The differential polysilicon CSHP enabled the magnetic device to not only increase the magnetosensitivity but also eliminate the offset voltage generated because of device mismatch and Lorentz force...
January 10, 2017: Sensors
https://www.readbyqxmd.com/read/28066660/flex-rigid-pleuroscopic-biopsy-with-the-sb-knife-jr-is-a-novel-technique-for-diagnosis-of-malignant-or-benign-fibrothorax
#7
Xiao-Bo Wang, Yan Yin, Yuan Miao, Ralf Eberhardt, Gang Hou, Felix J Herth, Jian Kang
Diagnosing pleural effusion is challenging, especially in patients with malignant or benign fibrothorax, which is difficult to sample using standard flexible forceps (SFF) via flex-rigid pleuroscopy. An adequate sample is crucial for the differential diagnosis of malignant fibrothorax (malignant pleural mesothelioma, metastatic lung carcinoma, etc.) from benign fibrothorax (benign asbestos pleural disease, tuberculous pleuritis, etc.). Novel biopsy techniques are required in flex-rigid pleuroscopy to improve the sample size and quality...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28058023/laparoscopic-and-endoscopic-co-operative-surgery-for-non-ampullary-duodenal-tumors
#8
Daisuke Ichikawa, Shuhei Komatsu, Osamu Dohi, Yuji Naito, Toshiyuki Kosuga, Kazuhiro Kamada, Kazuma Okamoto, Yoshito Itoh, Eigo Otsuji
AIM: To assess the safety and feasibility of laparoscopic and endoscopic co-operative surgery (LECS) for early non-ampullary duodenal tumors. METHODS: Twelve patients with a non-ampullary duodenal tumor underwent LECS at our hospital. One patient had two mucosal lesions in the duodenum. The indication for this procedure was the presence of duodenal tumors with a low risk for lymph node metastasis. In particular, the tumors included small (less than 10 mm) submucosal tumors (SMT) and epithelial mucosal tumors, such as mucosal cancers or large mucosal adenomas with malignant suspicion...
December 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28052695/management-of-early-colonic-neoplasia-where-are-we-now-and-where-are-we-heading
#9
Gaius Longcroft-Wheaton, Pradeep Bhandari
There have been considerable advances in the endoscopic treatment of colorectal neoplasia. The development of endoscopic submucosal dissection and full thickness resection techniques is changing the way benign disease and early cancers are managed. This article reviews the evidence behind these new techniques and discusses where this field is likely to move in the future. Areas covered: A PubMed literature review of resection techniques for colonic neoplasia was performed. The clinical and cost effectiveness of endoscopic mucosal resection (EMR) is examined...
January 4, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28052275/endoscopic-submucosal-dissection-and-endoscopic-mucosal-resection-for-non-ampullary-superficial-duodenal-tumor
#10
Shu Hoteya, Tsukasa Furuhata, Toba Takahito, Yumiko Fukuma, Yugo Suzuki, Daisuke Kikuchi, Toshifumi Mitani, Akira Matsui, Satoshi Yamashita, Kosuke Nomura, Yasutaka Kuribayashi, Toshiro Iizuka, Mitsuru Kaise
BACKGROUND: Endoscopic submucosal resection (ESD) and endoscopic mucosal resection (EMR) are well established as curable and safety procedures for treating superficial tumors of the stomach, esophagus and colon. However, a majority of endoscopic resection strategies for non-ampullary superficial duodenal tumors (NASDTs) remains undefined. The aim of this study was to clarify which was the right method for NASDT treatment - EMR or ESD. SUMMARY: We analyzed 129 consecutive endoscopic resection (74 ESD and 55 EMR) procedures performed with NADSTs and divided the ESD group into 49 large ESD groups (more than 20 mm in diameter) and 25 small ESD groups (less than 20 mm in diameter)...
2017: Digestion
https://www.readbyqxmd.com/read/28050913/technological-review-on-endoscopic-submucosal-dissection-available-equipment-recent-developments-and-emerging-techniques
#11
Georgios Mavrogenis, Juergen Hochberger, Pierre Deprez, Morteza Shafazand, Dimitri Coumaros, Katsumi Yamamoto
Endoscopic submucosal dissection (ESD) is widely practiced in Japan and the Eastern World and is rapidly expanding in western countries for the management of early malignancies of the upper and lower gastrointestinal tube. In addition, novel therapeutic applications deriving from ESD have emerged including the treatment of achalasia, of submucosal tumors, of diverticula, of strictures and of reflux disease. An ESD procedure necessitates not only skills and specific training, but also familiarization with a vast spectrum of devices (endoscopes, high-frequency generators and their settings, endoknives, hoods, irrigation devices) and techniques (such as countertraction, artificial ulcer closure), that render the procedure faster, more efficient and safer...
January 4, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28050786/multicenter-prospective-study-on-the-safety-of-upper-gastrointestinal-endoscopic-procedures-in-antithrombotic-drug-users
#12
Yoshiyasu Kono, Minoru Matsubara, Tatsuya Toyokawa, Ryuta Takenaka, Seiyu Suzuki, Junichirou Nasu, Masao Yoshioka, Masahiro Nakagawa, Motowo Mizuno, Hiroyuki Sakae, Makoto Abe, Tatsuhiro Gotoda, Ko Miura, Hiromitsu Kanzaki, Masaya Iwamuro, Keisuke Hori, Takao Tsuzuki, Masahide Kita, Seiji Kawano, Yoshiro Kawahara, Hiroyuki Okada
BACKGROUND: The Japan Gastroenterological Endoscopy Society updated its guidelines for gastroenterological endoscopy in patients undergoing antithrombotic treatment in July 2012. However, the safety of endoscopic procedures in antithrombotic drug users has not been fully investigated. AIMS: To evaluate the safety of upper gastrointestinal endoscopic procedures in antithrombotic drug users. METHODS: From September 2013 to September 2015, patients who were taking antithrombotic drugs and who underwent upper gastrointestinal endoscopic procedures were prospectively enrolled at five hospitals...
January 3, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28048755/mo-fg-campus-iep1-03-establishment-of-provincial-diagnostic-reference-levels-in-pediatric-imaging
#13
E Tonkopi, K O'Brien
PURPOSE: To establish provincial diagnostic reference levels (DRLs) in pediatric general radiography and computed tomography (CT) as a tool for the optimization of exposure parameters. METHODS: Patient dose survey was conducted in the only pediatric hospital in the province of Nova Scotia. The DRLs were established as the 75th percentile of patient dose distributions in different age groups. For routine radiography projections the DRLs were determined in terms of entrance surface dose (ESD) calculated from the radiation output measurements and the tube current-exposure time product (mAs) recorded for each examination...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048468/su-d-209-06-study-on-the-dose-conversion-coefficients-in-pediatric-radiography-with-the-development-of-children-voxel-phantoms
#14
Q Liu, W Zhuo, H Liu, Y Liu, T Chen
PURPOSE: Conversion coefficients of organ dose normalized to entrance skin dose (ESD) are widely used to evaluate the organ doses directly using ESD without time-consuming dose measurement, this work aims to investigate the dose conversion coefficients in pediatric chest and abdomen radiography with the development of 5 years and 10 years old children voxel phantoms. METHODS: After segmentation of organs and tissues from CT slice images of ATOM tissue-equivalent phantoms, a 5-year-old and a 10-year-old children computational voxel phantoms were developed for Monte Carlo simulation...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048073/su-f-j-16-planar-kv-imaging-dose-reduction-study
#15
E Gershkevitsh, D Zolotuhhin
PURPOSE: IGRT has become an indispensable tool in modern radiotherapy with kV imaging used in many departments due to superior image quality and lower dose when compared to MV imaging. Many departments use manufacturer supplied protocols for imaging which are not always optimised between image quality and radiation dose (ALARA). METHODS: Whole body phantom PBU-50 (Kyoto Kagaku ltd., Japan) for imaging in radiology has been imaged on Varian iX accelerator (Varian Medical Systems, USA) with OBI 1...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042389/clinical-problems-with-antithrombotic-therapy-for-endoscopic-submucosal-dissection-for-gastric-neoplasms
#16
REVIEW
Toshiyuki Yoshio, Tsutomu Nishida, Yoshito Hayashi, Hideki Iijima, Masahiko Tsujii, Junko Fujisaki, Tetsuo Takehara
Endoscopic submucosal dissection (ESD) is minimally invasive and thus has become a widely accepted treatment for gastric neoplasms, particularly for patients with comorbidities. Antithrombotic agents are used to prevent thrombotic events in patients with comorbidities such as cardio-cerebrovascular diseases and atrial fibrillation. With appropriate cessation, antithrombotic therapy does not increase delayed bleeding in low thrombosis-risk patients. However, high thrombosis-risk patients are often treated with combination therapy with antithrombotic agents and occasionally require the continuation of antithrombotic agents or heparin bridge therapy (HBT) in the perioperative period...
December 16, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28039646/learning-curve-and-clinical-outcome-of-gastric-endoscopic-submucosal-dissection-performed-by-trainee-operators
#17
Masao Yoshida, Naomi Kakushima, Keita Mori, Kimihiro Igarashi, Noboru Kawata, Masaki Tanaka, Kohei Takizawa, Sayo Ito, Kenichiro Imai, Kinichi Hotta, Hirotoshi Ishiwatari, Hiroyuki Matsubayashi, Hiroyuki Ono
BACKGROUND: Although endoscopic submucosal dissection (ESD) represents a significant progress in therapeutic endoscopy, little is known about how trainees attain its technical proficiency. The aims of this study were to evaluate the learning curve and clinical outcomes of gastric ESD performed by trainee endoscopists. METHODS: Between April 2009 and March 2014, 334 gastric ESD procedures were performed by seven trainees (42-50 consecutive cases per trainee). The learning curve for gastric ESD was evaluated using the cumulative sum (CUSUM) method...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28031156/endolymphatic-duct-blockage-for-refractory-m%C3%A3-ni%C3%A3-re-s-disease-assessment-of-endolymphatic-sac-biopsy-on-short-term-surgical-outcomes
#18
Marc Henri Asmar, Issam Saliba
OBJECTIVE: Endolymphatic sac decompression (ESD) for the treatment of Ménière's disease (MD) has had limited success and variable results in the literature. We have devised a novel technique that involves blocking the endolymphatic duct with surgical clips. In a separate effort to study the endolymphatic sac (ELS), we have sectioned the lateral part of the main body of the ELS as biopsies from a subset of patients. We aimed to evaluate the effect of the lateral part sectioning of the ELS on short-term surgical outcomes...
December 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28011512/double-endoscopic-intraluminal-operation-deilo-for-early-gastric-cancer-outcome-of-novel-procedure-for-endoscopic-submucosal-dissection
#19
Kyoichi Ogata, Mitsuhiro Yanai, Kengo Kuriyama, Masaki Suzuki, Toru Yanoma, Akiharu Kimura, Norimichi Kogure, Yoshitaka Toyomasu, Tetsuro Ohno, Erito Mochiki, Hiroyuki Kuwano
Endoscopic submucosal dissection (ESD) has been used to treat patients with early gastric cancer (EGC). Although several endoscopic devices have been developed to ensure easy and safe ESD, this technique still requires an experienced, highly skilled endoscopist, as it is performed through a single gastroscope, thus requiring one-handed surgical techniques. To overcome these limitations, many ESD procedures with counter-traction have been developed, such as the double scope, double channel scope, clip with line, magnetic anchor, percutaneous traction and external grasping forceps methods...
January 2017: Anticancer Research
https://www.readbyqxmd.com/read/28009738/lymph-node-metastasis-in-mucosal-gastric-cancer-reappraisal-of-expanded-indication-of-endoscopic-submucosal-dissection
#20
Seung-Young Oh, Kyung-Goo Lee, Yun-Suhk Suh, Min A Kim, Seong-Ho Kong, Hyuk-Joon Lee, Woo Ho Kim, Han-Kwang Yang
OBJECTIVE: To evaluate risk factors for lymph node (LN) metastasis in mucosal gastric cancer, particularly the effect of cellular differentiation, and implications for the indication of endoscopic submucosal dissection (ESD). SUMMARY BACKGROUND DATA: The indication of ESD has been expanded to undifferentiated-type (UD-type) gastric cancer despite risk of LN metastasis. METHODS: Patients who underwent radical gastrectomy for pT1a stage primary gastric adenocarcinoma between 2008 and 2012 were retrospectively analyzed...
January 2017: Annals of Surgery
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