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| 1 | Colonoscopic polypectomy and associated techniques显示文摘Polypectomy of colonic polyps has been shown to reduce the risk of colon cancer development and is considered a fundamental skill for all endoscopists who perform colonoscopy.A variety of polypectomy techniques and devices are available,and their use can vary greatly based on local availability and preferences.In general,cold forceps and cold snare have been the polypectomy methods of choice for smaller polyps,and hot snare has been the method of choice for larger polyps.The use of hot forceps has mostly fallen out of favor.Polypectomy for difficult to remove polyps may require the use of special devices and advanced techniques and has continued to evolve.As a result,the vast majority of polyps today can be removed endoscopically.Since electrocautery is frequently used for polypectomy,endoscopists should be thoroughly familiar with the basic principles of electrosurgery as it pertains to polypectomy.Tattooing of a polypectomy site is an important adjunct to polypectomy and can greatly facilitate future surgery or endoscopic surveillance.The two most common post-polypectomy complications are bleeding and perforation.Their incidence can be decreased with the use of meticulous polypectomy techniques and the application of some prophylactic maneuvers.This review will examine the technique of polypectomy and its complications from the perspective of the practicing gastroenterologist. | Christopher J Fyock Peter V Draganov | 2010 | World Journal of Gastroenterology2010，16，29： | 19 |
| 2 | Effect of prophylactic clip placement following endoscopic mucosal resection of large colorectal lesions on delayed polypectomy bleeding: A meta-analysis显示文摘BACKGROUND The role of prophylactic clipping for the prevention of delayed polypectomy bleeding(DPB) remains unclear and conclusions from prior meta-analyses are limited due to the inclusion of variety of resection techniques and polyp sizes.AIM To conduct a meta-analysis on the effect of clipping on DPB following endoscopic mucosal resection(EMR) of colorectal lesions ≥ 20 mm.METHODS We performed a search of PubMed and the Cochrane library for studies comparing the effect of clipping vs no clipping on DPB following endoscopic resection. The Cochran Q test and I^2 were used to test for heterogeneity. Pooling was conducted using a random-effects model.RESULTS Thirteen studies with a total of 7794 polyps were identified, of which data was available on 1701 cases of EMR of lesions ≥ 20 mm. Prophylactic clipping was associated with a lower rate of DPB(1.4%) when compared to no clipping(5.2%)(pooled OR: 0.24, 95%CI: 0.12-0.50, P < 0.001) following EMR of lesions ≥ 20 mm.There was no significant heterogeneity among the studies(I^2 = 0%, P = 0.67).CONLUSION Prophylactic clipping may reduce DPB following EMR of large colorectal lesions.Future trials are needed to further identify risk factors and stratify high risk cases in order to implement a cost-effective preventive strategy. | Fares Ayoub Donevan R Westerveld Justin J Forde Christopher E Forsmark Peter V Draganov Dennis Yang | 2019 | World Journal of Gastroenterology2019，25，18： | 9 |
| 3 | Preassembly and ligand-induced restructuring of the chains of the IFN-γ receptor complex: the roles of Jak kinases, Statl and the receptor chains显示文摘 | Christopher D Krause Natasha Lavnikova Junxia Xie Erwen Mei Olga V Mirochnitchenko Yiwei Jia Robin M Hochstrasser Sidney Pestka | 2006 | Cell Research2006，16，1： | 7 |
| 4 | How to perform gastrointestinal ultrasound: anatomy and normal findings显示文摘Gastrointestinal ultrasound is a practical, safe, cheap and reproducible diagnostic tool in inflammatorybowel disease gaining global prominence amongst clinicians. Understanding the embryological processes of the intestinal tract assists in the interpretation of abnormal sonographic findings. In general terms, the examination principally comprises interrogation of the colon, mesentery and small intestine using both lowfrequency and high-frequency probes. Interpretation of findings on GIUS includes assessment of bowel wall thickness, symmetry of this thickness, evidence of transmural changes, assessment of vascularity using Doppler imaging and assessment of other specific features including lymph nodes, mesentery and luminal motility. In addition to B-mode imaging, transperineal ultrasonography, elastography and contrast-enhanced ultrasonography are useful adjuncts. This supplement expands upon these features in more depth. | Nathan S S Atkinson Robert V Bryant Yi Dong Christian Maaser Torsten Kucharzik Giovanni Maconi Anil K Asthana Michael Blaivas Adrian Goudie Odd Helge Gilja Dieter Nuernberg Dagmar Schreiber-Dietrich Christoph F Dietrich | 2017 | World Journal of Gastroenterology2017，23，38： | 5 |
| 5 | Prospective evaluation of small bowel preparation with bisacodyl and sodium phosphate for capsule endoscopy显示文摘AIM: To determine the effect of Prepacol?, a com- bination of sodium phosphate and bisacodyl, on transit and quality of capsule endoscopy (CE). METHODS: Fivety two consecutive patients were included in this prospective study. CE was performed following a 12 h fasting period. Twenty six patients were randomized for additional preparation with Prepacol?. The quality of CE was assessed separately for the proximal and the distal small bowel by 3 experienced endoscopists on the basis of a graduation which was initially developed with 20 previous CE. RESULTS: Preparation with Prepacol? accelerated small bowel transit time (262 ± 55 min vs 287 ± 97 min), but had no effect on the quality of CE. Visibility was significantly reduced in the distal compared to the proximal small bowel. CONCLUSION: The significantly reduced visibility of CE in the distal small bowel allocates the need for a good preparation. Since Prepacol? has no beneficial effect on CE the modality of preparation and the ideal time of application remains unclear. Further standardized examinations are necessary to identify sufficient preparation procedures and to determine the impact of the volume of the preparation solution. | Andreas Franke Frank Hummel Phillip Knebel Christoph Antoni Ulrich Bcker Manfred V Singer Matthias Lhr | 2008 | World Journal of Gastroenterology2008，14，13： | 5 |
| 6 | Predictors of spine deformity progression in adolescent idiopathic scoliosis: A systematic review with meta-analysis显示文摘AIM: To evaluate published data on the predictors of progressive adolescent idiopathic scoliosis(AIS) in order to evaluate their efficacy and level of evidence. METHODS: Selection criteria:(1) study design: randomized controlled clinical trials, prospective cohort studies and case series, retrospective comparative and none comparative studies;(2) participants: adolescents with AIS aged from 10 to 20 years; and(3) treatment: observation, bracing, and other. Search method: Ovid MEDLINE, Embase, the Cochrane Library, Pub Medand patent data bases. All years through August 2014 were included. Data were collected that showed an association between the studied characteristics and the progression of AIS or the severity of the spine deformity. Odds ratio(OR), sensitivity, specificity, positive and negative predictive values were also collected. A metaanalysis was performed to evaluate the pooled OR and predictive values, if more than 1 study presented a result. The GRADE approach was applied to evaluate the level of evidence.RESULTS: The review included 25 studies. All studies showed statistically significant or borderline association between severity or progression of AIS with the following characteristics:(1) An increase of the Cobb angle or axial rotation during brace treatment;(2) decrease of the rib-vertebral angle at the apical level of the convex side during brace treatment;(3) initial Cobb angle severity(> 25o);(4) osteopenia;(5) patient age < 13 years at diagnosis;(6) premenarche status;(7) skeletal immaturity;(8) thoracic deformity;(9) brain stem vestibular dysfunction; and(10) multiple indices combining radiographic, demographic, and physiologic characteristics. Single nucleotide polymorphisms of the following genes:(1) calmodulin 1;(2) estrogen receptor 1;(3) tryptophan hydroxylase 1;(3) insulin-like growth factor 1;(5) neurotrophin 3;(6) interleukin-17 receptor C;(7) melatonin receptor 1B, and(8) Scoli Score test. Other predictors included:(1) impairment of melatonin signaling in osteoblasts and peripheral blood mononuclear cells(PBMC);(2) G-protein signaling dysfunction in PBMC; and(3) the level of platelet calmodulin. However, predictive values of all these findings were limited, and the levels of evidence were low. The pooled result of brace treatment outcomes demonstrated that around 27% of patents with AIS experienced exacerbation of the spine deformity during or after brace treatment, and 15% required surgical correction. However, the level of evidence is also low due to the limitations of the included studies.CONCLUSION: This review did not reveal any methods for the prediction of progression in AIS that could be recommended for clinical use as diagnostic criteria. | Andriy Noshchenko Lilian Hoffecker Emily M Lindley Evalina L Burger Christopher MJ Cain Vikas V Patel Andrew P Bradford | 2015 | World Journal of Orthopedics2015，6，7： | 4 |
| 7 | Lessons from “real life experience” of rifaximin use in the management of recurrent hepatic encephalopathy显示文摘BACKGROUND Hepatic encephalopathy(HE)is a major complication of cirrhosis with independent prognostic significance.The current management of HE is mainly based on lactulose.Rifaximin has been shown to decrease the risk of HE recurrence in patients with episodic forms.HE can also be persistent.However,there is no drug support recommendation for rifaximin use in this setting.AIM To assess the effectiveness of rifaximin in the management of recurrent episodes of HE and recurrent acute exacerbations on persistent HE,in“real life conditions”.METHODS In this retrospective study,using a within-subjects design,we collected data of patients treated with rifaximin for HE in two liver diseases centers,during the six-month period before and during the six-month period after the initiation of rifaximin.The primary effectiveness endpoint was the total number of HE events involving hospitalization.RESULTS Rifaximin was introduced for prevention of recurrent HE episodes in 29 out of 62 patients with normal mental status between episodes and for prevention of recurrent acute exacerbations on persistent HE in 33 out of 62 patients.In the“prevention of recurrent HE episodes”group,fewer HE events(0.79 vs 1.78;P=0.013)were reported during the period of time when rifaximin was used.In the“prevention of recurrent acute exacerbations on persistent HE”group,there was no significant difference in the number of HE-events(1.48 vs 1.77;P=0.582).CONCLUSION In this real-life experience,the effectiveness of rifaximin was confirmed in the prevention of HE episodes recurrence but was not proved in the prevention of acute exacerbations recurrence on persistent HE. | Fiona Chautant Maeva Guillaume Marie-Angèle Robic Jean-François Cadranel Jean-Marie Peron Hortensia Lison Charlène Cool Christophe Bureau Véronique Duhalde | 2020 | World Journal of Hepatology2020，12，1： | 3 |
| 8 | Inhibiting Cxcr2 disrupts tumor-stromal interactions and improves survival in a mouse model of pancreatic ductal adenocarcinoma显示文摘 | Ijichi Hideaki Chytil Anna Gorska Agnieszka E Aakre Mary E Bierie Brian Tada Motohisa Mohri Dai Miyabayashi Koji Asaoka Yoshinari Maeda Shin Ikenoue Tsuneo Tateishi Keisuke Wright Christopher V E Koike Kazuhiko Omata Masao Moses Harold L | 2011 | Journal of Clinical Investigation2011，，10： | 3 |
| 9 | Over-the-scope-clip closure of long lasting gastrocutaneous fistula after percutaneous endoscopic gastrostomy tube removal in immunocompromised patients:A single center case series显示文摘Over-the-scope-clips(OTSC~?) have been shown to be an effective and safe endoscopic treatment option for the closure of gastrointestinal perforations, leakages and fistulae. Indications for endoscopic OTSC~? treatment have grown in number and also include gastro cutaneous fistula(GCF) after percutaneous endoscopic gastrostomy(PEG) tube removal. Non-healing GCF is a rare complication after removal of PEG tubes and may especially develop in immunosuppressed patients with multiple comorbidities. There is growing evidence in the literature that OTSC~? closure of GCF after PEG tube removal is emerging as an effective, simple and safe endoscopic treatment option. However current evidence is limited to the geriatric population and short standing GCF, while information on closure of long standing GCF after PEG tube removal in a younger population with significant comorbidities is lacking. In this retrospective single-center case-series we report on five patients undergoing OTSC~? closure of chronic GCF after PEG tube removal. Four out of five patients were afflicted with long lasting, symptomatic fistulae. All five patients suffered from chronic disease associated with a catabolic metabolism(cystic fibrosis, chemotherapy for neoplasia, liver cirrhosis). The mean patient age was 43 years. The mean dwell time of PEG tubes in all five patients was 808 d. PEG tube dwell time was shortest in patient 5(21 d). The mean duration from PEG tube removal to fistula closure in patients 1-4 was 360 d(range 144-850 d). The intervention was welltolerated by all patients and no adverse events occured. Successful immediate and long-term fistula closure was accomplished in all five patients. This single center case series is the first to show successful endoscopic OTSC~? closure of long lasting GCF in five consecutive middleaged patients with significant comorbidities. Endoscopic closure of chronic persistent GCF after PEG tube removal using an OTSC~? was achieved in all patients with no immediate or long-term complications. OTSC~? is a promising endoscopic treatment option for this condition with a potentially high immediate and long term success rate in patients with multiple comorbidities. | Henriette Heinrich Christoph Gubler Piero V Valli | 2017 | World Journal of Gastrointestinal Endoscopy2017，9，2： | 2 |
| 10 | Global surveillance of cancer survival 1995–2009: analysis of individual data for 25 676 887 patients from 279 population-based registries in 67 countries (CONCORD-2)显示文摘 | Claudia Allemani Hannah K Weir Helena Carreira Rhea Harewood Devon Spika Xiao-Si Wang Finian Bannon Jane V Ahn Christopher J Johnson Audrey Bonaventure Rafael Marcos-Gragera Charles Stiller Gulnar Azevedo e Silva Wan-Qing Chen Olufemi J Ogunbiyi Bernard R | 2015 | The Lancet . 2015 (9972)2015，，： | 2 |
| 11 | Deciphering the modifiers for phenotypic variability of X-linked adrenoleukodystrophy显示文摘X-linked adrenoleukodystrophy(X-ALD),an inborn error of peroxisomalβ-oxidation,is caused by defects in the ATP Binding Cassette Subfamily D Member 1(ABCD1)gene.X-ALD patients may be asymptomatic or present with several clinical phenotypes varying from severe to mild,severe cerebral adrenoleukodystrophy to mild adrenomyeloneuropathy(AMN).Although most female heterozygotes present with AMN-like symptoms after 60 years of age,occasional cases of females with the cerebral form have been reported.Phenotypic variability has been described within the same kindreds and even among monozygotic twins.There is no association between the nature of ABCD1 mutation and the clinical phenotypes,and the molecular basis of phenotypic variability in X-ALD is yet to be resolved.Various genetic,epigenetic,and environmental influences are speculated to modify the disease onset and severity.In this review,we summarize the observations made in various studies investigating the potential modifying factors regulating the clinical manifestation of X-ALD,which could help understand the pathogenesis of the disease and develop suitable therapeutic strategies. | Shruti V Palakuzhiyil Rita Christopher Sadanandavalli Retnaswami Chandra | 2020 | World Journal of Biological Chemistry2020，11，3： | 2 |
| 12 | Excluding infection through procalcitonin testing improves outcomes of congestive heart failure patients presenting with acute respiratory symptoms: Results from the randomized ProHOSP trial显示文摘 | Philipp Schuetz Alexander Kutz Eva Grolimund Sebastian Haubitz Désirée Demann Alaadin V?geli Fabienne Hitz Mirjam Christ-Crain Robert Thomann Claudine Falconnier Claus Hoess Christoph Henzen Robert J. Marlowe Werner Zimmerli Beat Mueller | 2014 | International Journal of Cardiology2014，，3： | 2 |
| 13 | Hyper-X Post-Flight Trajectory Reconstruction显示文摘 | Christopher D K Paul V T Robert C B | 2006 | Journal of Spacecraft and Rockets2006，43，1： | 1 |
| 14 | The role of IL-27 in the development of T-cell responses during parasitic infections显示文摘 | Christopher A Alejandro V David A | 2004 | Immunological Reviews2004，202，： | 1 |
| 15 | Level of farm sector productivity : an international com- parison显示文摘 | V Eldon Ball Jean - Christophe Bureau Jean - Pierre Butault | 2001 | General2001，，8： | 1 |
| 16 | An hp- adaptive pseudospectral method for solving optimal control problems显示文摘 | CHRISTOPHER L WILLIAM H RAO V | 2011 | Optimal Control Applications and Methods2011，32，4： | 1 |
| 17 | Transgenic pigs as bioreactors: a comparison ofgamma-carboxylation of glutamic acid in recombinant humanprotein C and factor Ⅸ by the mammary gland显示文摘 | KEVIN E V C STEPHEN P B CHRISTOPHER G R | 1999 | Genetic Analysis: Biomolecular Engineering1999，15，： | 1 |
| 18 | Development of macroinvertebrate-based index for bioassessment of Idaho Rivers显示文摘 | Todd V Royer Christopher T Robinson Wayne G Minshall | 2001 | Environ Manag2001，27，4： | 1 |
| 19 | Cognitive Radio:Spectrum Sensing Problems in Signal Processing显示文摘 | Christopher C J Krishnan K V Bagubali A | 2012 | International Journal of Computer Appli-cations2012，40，16： | 1 |
| 20 | New 3'-azido-3'-deoxythymidin-5'-yl-O-( to-hydroxyalkyl ) carbonate prodrugs: synthesis and anti-HIV evaluation 显示文摘 | PATRICK V THIERRY C CHRISTOPHE P | 2001 | J Med Chem2001，44，5： | 1 |
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