Abstract：
BACKGROUND:Discrimination between neoplastic and non-neoplastic colorectal polyps is essential for determining appropriate treatment. The mucosal crypt pattern of polyps can be observed with a nonmagnifying colonoscope; however, mucosal crypt patterns are better seen by magnifying colonoscopy, which can also be a noninvasive means for predicting histopathology. This study prospectively compared the ability to distinguish between neoplastic and non-neoplastic lesions by magnifying and nonmagnifying colonoscopy. METHODS:Six hundred sixty patients were randomly assigned to undergo magnifying or nonmagnifying colonoscopy (2 groups each of 330 patients). The mucosal crypt pattern of colorectal lesions was classified into types I through V after spraying with 0.2% Indigo carmine dye. The histopathology of all lesions was confirmed by evaluation of endoscopic resection specimens or biopsy specimens. Only lesions 10 mm or less in diameter were included in the study. RESULTS:The accuracy of magnifying colonoscopy in distinguishing neoplastic from non-neoplastic lesions (92%, 372/405) was significantly higher than for nonmagnifying colonoscopy (68%, 278/407). Insertion of magnifying and nonmagnifying colonoscopes to the cecum was successful in, respectively, 321 patients (97%) and 317 patients (96%), with no significant differences in the average time to reach the cecum or average total procedure time. No serious complication was observed during or immediately after the examinations. CONCLUSIONS:Observation of mucosal crypt pattern with magnifying colonoscopy is superior to nonmagnifying colonoscopy for distinguishing between neoplastic and non-neoplastic colorectal lesions.
journal_name
Gastrointest Endoscjournal_title
Gastrointestinal endoscopyauthors
Konishi K,Kaneko K,Kurahashi T,Yamamoto T,Kushima M,Kanda A,Tajiri H,Mitamura Kdoi
10.1067/mge.2003.31keywords:
subject
Has Abstractpub_date
2003-01-01 00:00:00pages
48-53issue
1eissn
0016-5107issn
1097-6779pii
S0016-5107(03)70113-8journal_volume
57pub_type
临床试验,杂志文章,随机对照试验abstract：BACKGROUND:Increasingly, pancreatic stents are being placed to prevent post-ERCP pancreatitis. However, guidewire and stent placement may fail if the duct is small or tortuous, potentially exacerbating the risk. This study assessed the impact of unsuccessful pancreatic stent placement on complications and the efficacy ...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(03)02530-6
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:Until now, the insertion depth of the enteroscope during double-balloon enteroscopy (DBE) could only be estimated. However, the currently available methods have limitations, and development of newer, simple, and accurate modalities is needed. OBJECTIVE:To evaluate the accuracy of a novel method for evaluati...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/j.gie.2010.07.045
更新日期：2010-11-01 00:00:00
abstract：:Fifty cirrhotic patients with esophageal varices underwent endoscopic treatment in a prospective randomized trial carried out to compare variceal ligation with injection sclerotherapy, with respect to safety, efficacy, and complications in the initial session. Twenty-five patients each were treated using endoscopic va...
journal_title：Gastrointestinal endoscopy
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0016-5107(93)70050-4
更新日期：1993-03-01 00:00:00
abstract：BACKGROUND:The endoscopic measurement of sphincter of Oddi pressure is a technically difficult procedure requiring significant expertise. Intrabiliary pressure is technically easy to measure. Furthermore, since it is believed that the pathogenesis of pain in patients with sphincter of Oddi dysfunction is attributable t...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(96)70054-8
更新日期：1996-12-01 00:00:00
abstract：BACKGROUND:Cardiopulmonary unplanned events (CUE) related to conscious sedation constitute a major proportion of GI endoscopy-associated complications. OBJECTIVES:Our purpose was to study the incidence of CUE during GI endoscopy and to determine factors that may predict CUE. DESIGN:Retrospective CORI (Clinical Outcom...
journal_title：Gastrointestinal endoscopy
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doi：10.1016/j.gie.2006.12.040
更新日期：2007-07-01 00:00:00
abstract：BACKGROUND:Studies suggest that endoscopist-related factors such as colonoscopy withdrawal time are important in determining the adenoma detection rate (ADR). OBJECTIVE:To determine the importance of withdrawal technique in differentiating among endoscopists with varying ADRs. DESIGN:Prospective, multicenter study. ...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章,多中心研究
doi：10.1016/j.gie.2011.03.003
更新日期：2011-07-01 00:00:00
abstract：BACKGROUND:Intravenous sedation/analgesia for colonoscopy is accompanied with certain risks and postprocedure drowsiness. We sought to determine whether inhaled nitrous oxide (Entonox: 50% nitrous oxide, 50% oxygen) provides adequate analgesia for colonoscopy and the impact of this agent on recovery. METHODS:All patie...
journal_title：Gastrointestinal endoscopy
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0016-5107(00)70354-3
更新日期：2000-03-01 00:00:00
abstract：BACKGROUND AND AIMS:Digital cholangioscopes provide higher-resolution imaging of the pancreatobiliary tract compared with fiberoptic instruments. The role of a new, digital, single-operator cholangiopancreatoscopy (SOC) system for diagnosis and treatment of pancreatobiliary disorders in clinical practice is not known. ...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章,多中心研究
doi：10.1016/j.gie.2016.03.789
更新日期：2016-10-01 00:00:00
abstract：:Biliary stent blockage by adherence of bacteria and formation of biofilm is a major problem in endoscopic stenting procedures. We have investigated bacterial adherence to hydrophilic polymer (Hydromer)-coated polyurethane stents in stationary and perfusion experiments. Adherence of gram negative and gram positive orga...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(93)70220-5
更新日期：1993-09-01 00:00:00
abstract：BACKGROUND:Endoscopic sphincterotomy is difficult and sometimes impossible in patients who have undergone gastrectomy or partial gastrectomy with Billroth II reconstruction. For such patients, a novel technique was developed in which endoscopic sphincterotomy is performed via percutaneous transhepatic cholangioscopy. T...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(04)00170-1
更新日期：2004-05-01 00:00:00
abstract：BACKGROUND:Because endoscopic ultrasound (EUS) accuracy for staging gastrointestinal tract tumors is limited by many factors, this study was designed to analyze potential sources of error in the EUS staging of colorectal carcinoma. METHODS:All patients referred for EUS evaluation of colorectal carcinoma were staged pr...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1067/mge.2000.106310
更新日期：2000-06-01 00:00:00
abstract：BACKGROUND:Proximal migration of a biliary stent is an uncommon event, but its management can present a technical challenge to the therapeutic endoscopist. METHODS:We reviewed the methods that have been used for retrieval of proximally migrated biliary stents in a referral endoscopy center. RESULTS:Forty-four cases w...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(95)70003-x
更新日期：1995-12-01 00:00:00
abstract：BACKGROUND:Uncovered, rather than covered, metal stents are commonly used for palliation of malignant gastric outlet obstruction because of the low risk of stent migration, but tumor ingrowth risk is a major drawback. Few reports address malignant obstruction after gastric surgery. OBJECTIVE:Our purpose was to compare...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/j.gie.2006.08.030
更新日期：2007-05-01 00:00:00
abstract：:Seventeen patients with achalasia were treated by endoscopic myotomy limited to the esophageal rosette and avoiding the distal antireflux zone. Clinical, radiological, endoscopic, and manometric follow-up revealed improvement comparable to that seen in patients after successful surgical myotomy or pneumatic dilation. ...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(80)73249-2
更新日期：1980-02-01 00:00:00
abstract：BACKGROUND:Thermal therapy is the cornerstone of endoscopic treatment of bleeding mucosal lesions of the GI tract. However, there is a 20% failure rate and contact devices may be cumbersome in the treatment of large bleeding areas. A pilot study was conducted to evaluate the safety and efficacy of endoscopic cryotherap...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1067/mge.2003.115
更新日期：2003-03-01 00:00:00
abstract：BACKGROUND AND AIMS:False positive (FP) results by computer-aided detection (CADe) hamper the efficiency of colonoscopy by extending examination time. Our aim was to develop a classification of the causes and clinical relevance of CADe FPs, and to assess the relative distribution of FPs in a real-life setting. METHODS...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/j.gie.2020.06.021
更新日期：2020-10-01 00:00:00
abstract：BACKGROUND:The effect of patient education on bowel preparation for colonoscopy has not been well studied. An improvement in patient understanding of the rationale for bowel preparation before colonoscopy might enhance adherence to the prescribed bowel regimen and improve bowel preparation quality. OBJECTIVE:To measur...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.gie.2010.10.013
更新日期：2011-02-01 00:00:00
abstract：:ERCP was performed in two infants (29 and 62 days old) and eight children (5 to 12 years old) with jaundice due to common bile duct stones. Seven patients had hemolytic anemia and three patients had a family history of gallstone disease. Successful cannulation of the common bile duct demonstrating stones was accomplis...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(92)70475-1
更新日期：1992-07-01 00:00:00
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journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(95)70013-7
更新日期：1995-12-01 00:00:00
abstract：:Eleven consecutive patients underwent a total of 34 esophageal variceal sclerotherapy (EVS) sessions for bleeding esophageal varices. Blood cultures were drawn pre-, intra-, and post-EVS. All pre- and post-EVS blood cultures were negative. Five of the initial nine patients studied were found to have positive blood cul...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(85)71955-4
更新日期：1985-02-01 00:00:00
abstract：BACKGROUND AND AIMS:Schatzki rings are found in the distal esophagus, are associated with hiatal hernias, and present with intermittent dysphagia to solid foods. They can be identified by radiology (GI series or barium swallow studies) or endoscopy. Rings are not always visualized during endoscopy in patients in whom t...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/j.gie.2015.10.041
更新日期：2016-05-01 00:00:00
abstract：BACKGROUND:The aim of this study was to identify predictors of outcome for pancreatic duct (PD) disruption managed by endoscopic transpapillary stent insertion. METHODS:An endoscopy database was used to identify patients with PD disruption, defined as extravasation of contrast from the PD during ERCP. Data collected i...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(04)02832-9
更新日期：2005-04-01 00:00:00
abstract：BACKGROUND:No objective measure of the level of sedation is universally accepted. However, bispectral index monitoring is currently used to objectively measure sedation levels in several clinical settings. This study compares the temporal relationship of bispectral index levels versus the Observer's Assessment of Alert...
journal_title：Gastrointestinal endoscopy
pub_type： 临床试验,杂志文章
doi：10.1067/mge.2000.107284
更新日期：2000-08-01 00:00:00
abstract：:A technique for expeditious and safe placement of nasoenteric feeding tubes under direct vision is described. Adult patients undergo feeding tube placement with intravenous sedation and topical anesthesia. Endoscopic tube placement requires an average of 10 min and eliminates many risks associated with blind passage. ...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/s0016-5107(86)71882-8
更新日期：1986-10-01 00:00:00
abstract：BACKGROUND:Malignant esophageal masses can be staged with endoscopic ultrasound (EUS) using the TNM staging classification. Several criteria for differentiating between intraesophageal (T1-2) and extraesophageal (T3-4) masses have been described, but highly accurate staging remains difficult. METHODS:This is a blinded...
journal_title：Gastrointestinal endoscopy
pub_type： 临床试验,杂志文章
doi：10.1016/s0016-5107(97)70238-4
更新日期：1997-02-01 00:00:00
abstract：BACKGROUND:In EMR of early gastric cancer (EGC), en bloc resection reduces the risk of residual cancer. Endoscopic submucosal dissection (ESD) now allows en bloc resection of large EGCs. OBJECTIVE:To retrospectively determine whether ESD is more advantageous than EMR for EGCs. DESIGN:EMR (825 lesions, 711 patients) o...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1016/j.gie.2006.03.932
更新日期：2006-12-01 00:00:00
abstract：BACKGROUND:Data on overtube-assisted enteroscopy to facilitate ERCP in patients with surgically altered pancreaticobiliary anatomy, or long-limb surgical bypass, is limited. OBJECTIVE:To evaluate and compare ERCP success by using single-balloon (SBE), double-balloon (DBE), or rotational overtube enteroscopy. DESIGN:C...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章,多中心研究
doi：10.1016/j.gie.2012.10.015
更新日期：2013-04-01 00:00:00
abstract：BACKGROUND:For patients with Barrett's esophagus (BE), life-long surveillance endoscopy is recommended because of an elevated risk for developing dysplasia and esophageal adenocarcinoma. Various endoscopic therapies have been used to eradicate BE. Recently circumferential radiofrequency ablation has been used with enco...
journal_title：Gastrointestinal endoscopy
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.gie.2008.03.008
更新日期：2008-11-01 00:00:00
abstract：BACKGROUND:Endoscopic abnormalities have been described in adult patients with celiac disease that may suggest the diagnosis, especially when the presentation is atypical. METHODS:The duodenum of 140 children undergoing EGD for various different indications was evaluated macroscopically and histologically. RESULTS:Hi...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1067/mge.2001.119217
更新日期：2001-12-01 00:00:00
abstract：BACKGROUND:EUS determination of lymph nodal spread of intestinal cancer based on imaging alone is problematic. A noninvasive, reliable means of determining tumor spread to lymph nodes is desirable. This study investigated the feasibility of a computer-assisted evaluation of lymph nodes detected by EUS in patients with ...
journal_title：Gastrointestinal endoscopy
pub_type： 杂志文章
doi：10.1067/mge.2002.128920
更新日期：2002-11-01 00:00:00
