Abstract:
BACKGROUND:Colonoscopy is the preferred screening method for colorectal cancer. However, it has a substantial miss rate for colon polyps, and several techniques have been attempted to improve this limitation. Narrow-band imaging (NBI) is a novel technology that enhances the visualization of surface mucosal and vascular patterns. OBJECTIVE:The aim of this study was to determine the detection rate of additional polyps by NBI after removal of polyps visualized by standard white light colonoscopy (WLC) and to correlate the surface mucosal and vascular patterns with polyp histologic diagnosis. DESIGN:This was a prospective pilot feasibility study. SETTING:Kansas City Veterans Affairs Medical Center. PATIENTS:Subjects referred for screening colonoscopy were prospectively enrolled. METHODS:Subjects underwent colonoscopy after enrollment. After intubation of the cecum, colonic segments were sequentially examined, initially with WLC with removal of polyps followed by re-examination of the same segment with NBI. Additional polyps seen with NBI were photographed for their surface patterns and then removed. The total number of polyps visualized by WLC and NBI was calculated and the surface patterns were then correlated with polyp histologic features. RESULTS:Forty patients were enrolled in the study, all men, 32 white. The mean age was 62 years. A total of 72 polyps were detected by WLC (43 tubular adenoma, 28 hyperplastic polyps), whereas NBI detected an additional 51 polyps, of which 29 were tubular adenomas and 22 were hyperplastic. Five different surface/vascular patterns were observed: fine capillary network with absent mucosal pattern, circular pattern with dots, round/oval pattern, tubular pattern, and gyrus pattern. The sensitivity, specificity, and overall accuracy of the first two patterns for hyperplastic polyps were 86%, 96%, and 92%, respectively, and of the latter three patterns for tubular adenomas were 96%, 86%, and 92%, respectively. CONCLUSIONS:This pilot study demonstrates the feasibility of polyp detection and histologic correlation with NBI. These findings need to be confirmed in future randomized controlled trials.
journal_name
Gastrointest Endoscjournal_title
Gastrointestinal endoscopyauthors
Rastogi A,Bansal A,Wani S,Callahan P,McGregor DH,Cherian R,Sharma Pdoi
10.1016/j.gie.2007.07.036subject
Has Abstractpub_date
2008-02-01 00:00:00pages
280-6issue
2eissn
0016-5107issn
1097-6779pii
S0016-5107(07)02409-1journal_volume
67pub_type
杂志文章abstract::A double-blind, placebo-controlled randomized clinical study was performed in 69 outpatients scheduled for endoscopy and sedated with midazolam to assess the efficacy, safety, and usefulness of flumazenil in reversing the effects of midazolam-induced sedation. Midazolam was administered intravenously before endoscopy ...
journal_title:Gastrointestinal endoscopy
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1990-05-01 00:00:00
abstract:BACKGROUND:Colorectal cancer occurs more frequently in older people. Because the population of aged persons is increasing, a better understanding of the characteristics of colorectal cancer with respect to age would be useful. The purpose of this study was to determine whether there is any relationship between the site...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2002.122335
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:Duodenal diverticulum (DD) is a rare cause of upper-GI bleeding. The diagnosis and treatment of DD bleeding (DDB) is challenging. Surgical management was the mainstay of therapy before the 1990s. OBJECTIVE:To evaluate the clinical feature, diagnosis, and management of cases of DDB at our institution and the...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,评审
doi:10.1016/j.gie.2007.06.001
更新日期:2007-10-01 00:00:00
abstract:BACKGROUND:A recent American Society for Gastrointestinal Endoscopy Technology Status Evaluation Report recommended comparative studies of water-aided colonoscopy methods to refine the optimal insertion technique. OBJECTIVE:Air insufflation (AI), water immersion (WI), and water exchange (WE) were compared head-to-head...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.gie.2014.07.029
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND:The most important aspect of the surgical management of Zenker's diverticulum is probably the cricopharyngeal myotomy. Endoscopic diverticulotomy can be performed with a needle-knife papillotome, which allows simultaneous myotomy of the upper esophageal sphincter. METHODS:Since 1978, 47 patients (28 men and...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70452-9
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Complications with EUS-guided fine needle aspiration cytology (EUS-guided FNA) are rare and include perforation, infection, pancreatitis, and intraluminal bleeding. To date, the ultrasound appearance and clinical significance of perilesional bleeding during EUS-guided FNA have not been described. The aim of ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2001.111391
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND:Increasing reports suggest that endoscopic removal of benign ampullary and duodenal polyps is safe and frequently definitive; however, most reported polyps have been small in size (<3 cm). We have developed experience with endoscopic removal of increasingly large and complex polyps. PATIENTS:Fifty-one cases...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2006.06.018
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:Radiofrequency ablation (RFA) is an endoscopic technique used to eradicate Barrett's esophagus (BE). However, such ablation can commonly lead to neosquamous epithelium overlying residual BE glands not visible by conventional endoscopy and may evade detection on random biopsy samples. OBJECTIVE:To demonstrat...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2012.02.003
更新日期:2012-07-01 00:00:00
abstract::In vivo real-time assessment of the histology of diminutive (≤5 mm) colorectal polyps detected at colonoscopy can be achieved by means of an "optical biopsy" by using currently available endoscopic technologies. This systematic review and meta-analysis was performed by the American Society for Gastrointestinal Endosco...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.gie.2014.12.022
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND AND AIMS:Patients with chronic constipation or motility disorders may be referred for rectal suction biopsy (RSB) to rule out Hirschsprung's disease (HD). RSB may not be successful beyond infancy because of the increased thickness of the rectal mucosa. EMR could improve the diagnostic yield for HD when compa...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2017.08.037
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND AND AIMS:Differentiated minute submucosal cancers measuring ≤3 cm that exhibit no lymphovascular invasion are considered eligible for endoscopic resection; however, the ≤3-cm criterion remains debatable. The aim of this study was to verify the optimal tumor size cutoff for endoscopic resection eligibility, a...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2016.07.046
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Few options exist for patients with localized esophageal cancer ineligible for conventional therapies. Endoscopic spray cryotherapy with low-pressure liquid nitrogen has demonstrated efficacy in this setting in early studies. OBJECTIVE:To assess the safety and efficacy of cryotherapy in esophageal carcinoma...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,多中心研究
doi:10.1016/j.gie.2010.01.042
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:The United Kingdom (U.K.) post-adenoma resection guidelines recommend earlier surveillance for patients with 5 or more adenomas or 3 to 4 adenomas of which one is 10 mm or larger compared with U.S. guidelines. OBJECTIVE:To evaluate the effect of using the U.K. guideline on a U.S. cohort of adenoma patients....
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2014.02.1029
更新日期:2014-08-01 00:00:00
abstract::In a double-blind, randomized, placebo-controlled study of patients undergoing colonoscopy, sedation with an inhaled mixture of nitrous oxide/oxygen was compared with conventional intravenous sedation (pethidine 50 mg, midazolam 2.5 mg). In the patients studied, no significant differences were noted in number of pain ...
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(94)70203-9
更新日期:1994-07-01 00:00:00
abstract:BACKGROUND:Deep cannulation of the dorsal duct in patients with pancreas divisum may not be possible, even for the experienced endoscopist. This is a description of a technique to facilitate access to the dorsal duct. METHODS:Patients undergoing dorsal ductography in whom endoscopic therapy was indicated and in whom a...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2001.115474
更新日期:2001-07-01 00:00:00
abstract::We investigated the endoscopic and histologic features of 74 nonpolypoid neoplasias of the colorectum measuring 15 mm or less in diameter. Colonoscopically, they were characterized by flat growth, being either slightly elevated with a central depression or else completely flat against the surrounding mucosa. Of the 54...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(05)80595-4
更新日期:1995-02-01 00:00:00
abstract:BACKGROUND:A histopathologic diagnosis of metastasis in enlarged mediastinal lymph nodes usually results in non-surgical management. Cytologic specimens obtained by EUS-guided FNA can be used to detect malignancy in posterior mediastinal lymph nodes. The purpose of this study was to determine the rate of thoracic surge...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(04)01709-2
更新日期:2004-09-01 00:00:00
abstract::The feasibility of infrared video imaging of subsurface vessels in the stomach was investigated both experimentally and in more detail using computer simulations of light propagation. Infrared video imaging was first attempted in several experimental situations. Images of a human arm illuminated with infrared light (w...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(95)70341-1
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Bleeding from gastric varices larger than 2 cm in diameter represents a major limitation for endoscopic hemostasis. METHODS:Endoscopic ligation of gastric varices was performed with detachable snares and elastic bands in 41 patients who had recent bleeding from gastric varices larger than 2 cm in diameter. ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2002.125104
更新日期:2002-07-01 00:00:00
abstract:BACKGROUND AND AIMS:Endocuff (Arc Medical Design, Leeds, UK) and Endocuff Vision (Arc Medical Design, Leeds, UK) are effective mucosal exposure devices for improving polyp detection during colonoscopy. AmplifEYE (Medivators Inc, Minneapolis, Minn, USA) is a device that appears similar to the Endocuff devices but has re...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2019.06.046
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Increased demand for screening colonoscopy necessitates improved efficiency in endoscopy units, especially more efficient use of existing resources. The purpose of this study was to assess the efficiency of the endoscopy unit of a large tertiary care teaching hospital. OBJECTIVE:To assess the efficiency of ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2006.02.047
更新日期:2006-11-01 00:00:00
abstract::The American Society for Gastrointestinal Endoscopy (ASGE) Technology Committee provides reviews of existing, new, or emerging endoscopic technologies that have an impact on the practice of GI endoscopy. Evidence-based methodology is used by performing a MEDLINE literature search to identify pertinent clinical studies...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,评审
doi:10.1016/j.gie.2010.01.024
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Although there is a large body of data on the accuracy of endoscopic ultrasonography (EUS) in the diagnosis and staging of various gastroenterological disorders, little has been published on the influence of EUS in the management of patients. Data on the performance of EUS and patient acceptance are also spa...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70152-5
更新日期:1999-12-01 00:00:00
abstract:BACKGROUND:18-Fluorodeoxyglucose positron emission tomography (PET) is used clinically to detect recurrent colon cancer after surgical resection, but the sensitivity of PET for premalignant colon lesions and early stage colon cancer is not well defined. METHODS:In a prospective study, 45 patients with a total of 58 co...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(04)02775-0
更新日期:2005-03-01 00:00:00
abstract:BACKGROUND AND AIMS:Pancreaticoduodenectomy is an invasive procedure, and endoscopic resection (ER) is an alternative therapy. However, details regarding the outcomes of ER are unknown, especially for superficial duodenal epithelial neoplasia (SDET). The aim of this study was to elucidate the outcomes of ER for SDET an...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2018.05.002
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND:Prediction of a technically difficult colonoscopy may influence patient selection and procedure scheduling. Identification of predictive factors may be difficult because a common endpoint used to evaluate the success of colonoscopy is intubation of the cecum, which is usually achieved. The goal of this study...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2001.118950
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:Most breaches of endoscope disinfection result from inadequate manual cleaning or improper use of disinfectants. This is a description of how a quality assurance program identified rinse water as a source of bacterial contamination and how it facilitated the introduction of a novel means of delivering rinse ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(02)70046-1
更新日期:2002-09-01 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:BACKGROUND:EUS provides excellent imaging of the gastric wall. The utility of EUS imaging in guiding the placement of a gastric pacemaker was investigated. METHODS:Fourteen patients underwent gastric pacemaker implantation for refractory gastroparesis at laparotomy. Placement of the lead into the muscle layer of the a...
journal_title:Gastrointestinal endoscopy
pub_type: 临床试验,杂志文章
doi:10.1067/mge.2002.123275
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:There are limited data regarding work-related injury among endoscopists. OBJECTIVE:To define the prevalence of endoscopy-related musculoskeletal injuries and their impact on clinical practice and to identify physician and practice characteristics associated with their development. DESIGN:Survey. SETTING:E...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2014.06.036
更新日期:2015-02-01 00:00:00