Quality indicators for esophagogastroduodenoscopy

Prospective cohort study to evaluate premedication with simethicone and n-acetilcysteine for upper diagnostic gastrointestinal endoscopy

INTRODUCTION

The use of premedication for upper gastrointestinal endoscopy (UGE) is not widely established in western countries. The primary aim of the study was to compare gastric visibility according to the total visibility score (TVS). The secondary aim was to assess complications, diagnostic yield, endoscopic procedure time, sedation dose and patient satisfaction.

METHODS

A single center prospective cohort study was performed of consecutive adults undergoing an UGE in the afternoon working shift. After completing enrolment in the control group, patients were administered 200 mg simethicone and 500 mg N-acetylcysteine diluted in 100 ml of water >15 minutes before the procedure. All procedures were recorded and a single, blinded endoscopist evaluated the TVS after recruitment of both cohorts. Patient satisfaction was evaluated using the Spanish translation of the American Society of Gastrointestinal Endoscopy satisfaction questionnaire.

RESULTS

205 patients were included in the study, 103 females (50.2%) with a median age of 54.8-years (IQR: 41.2-65.2). 104 were enrolled to the control group and 101 to the intervention group. Patients receiving premedication presented a higher rate of adequate (74.3% vs 45.2; difference 95% CI: 16,3-41,9%, p<0.001) and excellent gastric visibility (23.8% vs 7.7%; difference 95% CI: 6,3-25,8%, p=0.002). Propofol dose was similar, although the median procedure time was lower in the group of no intervention [5 (IQR: 4-7) vs 6 minutes (IQR: 5-7); p=0.03]. Procedure related adverse events were similar, except that patient without premedication experienced more nausea episodes. Major and minor endoscopic findings and the satisfaction questionnaire showed no differences between both groups.

CONCLUSION

Patients receiving premedication with simethicone and N-acetylcysteine had a better gastric visibility score, without any increase in adverse events or affecting the patients' satisfaction.

Real-Time Multi-Label Upper Gastrointestinal Anatomy Recognition from Gastroscope Videos

Esophagogastroduodenoscopy (EGD) is a critical step in the diagnosis of upper gastrointestinal disorders. However, due to inexperience or high workload, there is a wide variation in EGD performance by endoscopists. Variations in performance may result in exams that do not completely cover all anatomical locations of the stomach, leading to a potential risk of missed diagnosis of gastric diseases. Numerous guidelines or expert consensus have been proposed to assess and optimize the quality of endoscopy. However, there is a lack of mature and robust methods to accurately apply to real clinical real-time video environments. In this paper, we innovatively define the problem of recognizing anatomical locations in videos as a multi-label recognition task. This can be more consistent with the model learning of image-to-label mapping relationships. We propose a combined structure of a deep learning model (GL-Net) that combines a graph convolutional network (GCN) with long short-term memory (LSTM) networks to both extract label features and correlate temporal dependencies for accurate real-time anatomical locations identification in gastroscopy videos. Our methodological evaluation dataset is based on complete videos of real clinical examinations. A total of 29,269 images from 49 videos were collected as a dataset for model training and validation. Another 1736 clinical videos were retrospectively analyzed and evaluated for the application of the proposed model. Our method achieves 97.1% mean accuracy (mAP), 95.5% mean per-class accuracy and 93.7% average overall accuracy in a multi-label classification task, and is able to process these videos in real-time at 29.9 FPS. In addition, based on our approach, we designed a system to monitor routine EGD videos in detail and perform statistical analysis of the operating habits of endoscopists, which can be a useful tool to improve the quality of clinical endoscopy.

Impact of Computer-Assisted System on the Learning Curve and Quality in Esophagogastroduodenoscopy: Randomized Controlled Trial

Background and Aims: To investigate the impact of the computer-assisted system on esophagogastroduodenoscopy (EGD) training for novice trainees in a prospective randomized controlled trial. Methods: We have constructed a computer-aided system (CAD) using retrospective images based on deep learning which could automatically monitor the 26 anatomical landmarks of the upper digestive tract and document standard photos. Six novice trainees were allocated and grouped into the CAD group and control group. Each of them took the training course, pre and post-test, and EGD examination scored by two experts. The CAD group was trained with the assistance of the CAD system and the control group without. Results: Both groups achieved great improvements in EGD skills. The CAD group received a higher examination grading score in the EGD examination (72.83 ± 16.12 vs. 67.26 ± 15.64, p = 0.039), especially in the mucosa observation (26.40 ± 6.13 vs. 24.11 ± 6.21, p = 0.020) and quality of collected images (7.29 ± 1.09 vs. 6.70 ± 1.05). The CAD showed a lower blind spot rate (2.19 ± 2.28 vs. 3.92 ± 3.30, p = 0.008) compared with the control group. Conclusion: The artificial intelligence assistant system displayed assistant capacity on standard EGD training, and assisted trainees in achieving a learning curve with high operation quality, which has great potential for application. Clinical Trial Registration: This trial is registered at https:/clinicaltrials.gov/, number NCT04682821.

Safety and Efficacy of Moderate Sedation in Super Obese Patients Undergoing Lower and Upper GI Endoscopy: a Case-Control Study

PURPOSE

Obesity is a disease of increasing prevalence. There is minimal research on the safety of sedation for general endoscopic procedures among super obese patients (BMI ≥ 50). The aim of our study was to evaluate the safety of moderate sedation and endoscopic procedural outcomes for super obese patients in a case-control study.

MATERIALS AND METHODS

We completed an age and sex-matched case-control study comparing 132 super obese patients with 132 non-obese controls. We assessed intra-procedure adverse events, delayed adverse events, doses of sedation medication used, and procedure duration at a tertiary care setting.

RESULTS

The mean BMI for the obese cohort was 55.6 compared with 22.5 for the controls (P < 0.001). The mean intra-procedure fentanyl and midazolam dose was higher for the obese patients compared with the controls, fentanyl 180 mcg, midazolam 7.7 mg vs fentanyl 148 mcg, midazolam 6.4 mg, respectively (P < 0.001). There was a significantly higher percentage of brief intra-procedure hypoxia (oxygen blood saturation < 90%) for the obese patients compared with the controls, 5% vs 0% (P = 0.02). There was no difference in delayed adverse events with 2% of the cases and 2% of the controls having delayed adverse events (P = 1.0). Procedure completion rates were 100% for both cases and controls.

CONCLUSION

General endoscopic procedures can be safely and effectively performed in super obese patients with moderate sedation. Brief intra-procedure hypoxia more commonly occurs in super obese patients, and higher medication doses are required.

Randomised controlled trial of WISENSE, a real-time quality improving system for monitoring blind spots during esophagogastroduodenoscopy

OBJECTIVE

Esophagogastroduodenoscopy (EGD) is the pivotal procedure in the diagnosis of upper gastrointestinal lesions. However, there are significant variations in EGD performance among endoscopists, impairing the discovery rate of gastric cancers and precursor lesions. The aim of this study was to construct a real-time quality improving system, WISENSE, to monitor blind spots, time the procedure and automatically generate photodocumentation during EGD and thus raise the quality of everyday endoscopy.

DESIGN

WISENSE system was developed using the methods of deep convolutional neural networks and deep reinforcement learning. Patients referred because of health examination, symptoms, surveillance were recruited from Renmin hospital of Wuhan University. Enrolled patients were randomly assigned to groups that underwent EGD with or without the assistance of WISENSE. The primary end point was to ascertain if there was a difference in the rate of blind spots between WISENSE-assisted group and the control group.

RESULTS

WISENSE monitored blind spots with an accuracy of 90.40% in real EGD videos. A total of 324 patients were recruited and randomised. 153 and 150 patients were analysed in the WISENSE and control group, respectively. Blind spot rate was lower in WISENSE group compared with the control (5.86% vs 22.46%, p<0.001), and the mean difference was -15.39% (95% CI -19.23 to -11.54). There was no significant adverse event.

CONCLUSIONS

WISENSE significantly reduced blind spot rate of EGD procedure and could be used to improve the quality of everyday endoscopy.

TRIAL REGISTRATION NUMBER

ChiCTR1800014809; Results.

Updates on the Facilities, Procedures, and Performance of the Accredited Endoscopy Unit

Endoscopic quality indicators can be classified into three categories, namely facilities and equipment, endoscopic procedures, and outcome measures. In 2019, the Korean Society of Gastrointestinal Endoscopy updated the accreditation of qualified endoscopy unit assessment items for these quality indicators to establish competence and define areas of continuous quality improvement.

Here, we presented the updated program guidelines on the facilities, procedures, and performance of the accredited endoscopy unit. Many of these items have not yet been validated. However, the updated program will help in establishing competence and defining areas of continuous quality improvement in Korean endoscopic practice.

Endoscopic identification of endoluminal esophageal landmarks for radial and longitudinal orientation and lesion location

AIM

To characterize esophageal endoluminal landmarks to permit radial and longitudinal esophageal orientation and accurate lesion location.

METHODS

Distance from the incisors and radial orientation were estimated for the main left bronchus and the left atrium landmarks in 207 consecutive patients using white light examination. A sub-study was also performed using white light followed by endoscopic ultrasound (EUS) in 25 consecutive patients to confirm the findings. The scope orientation throughout the exam was maintained at the natural axis, where the left esophageal quadrant corresponds to the area between 6 and 9 o’clock. When an anatomical landmark was identified, it was recorded with a photograph and its quadrant orientation and distance from the incisors were determined. The reference points to obtain the distances and radial orientation were as follows: the midpoint of the left main bronchus and the most intense pulsatile zone of the left atrium. With the video processor system set to moderate insufflation, measurements were obtained at the end of the patients’ air expiration.

RESULTS

The left main bronchus and left atrium esophageal landmarks were identified using white light in 99% and 100% of subjects at a mean distance of 25.8 cm (SD 2.3), and 31.4 cm (SD 2.4) from the incisors, respectively. The left main bronchus landmark was found to be a tubular, concave, non-pulsatile, esophageal external compression, occupying approximately 1/4 of the circumference. The left atrium landmark was identified as a round, convex, pulsatile, esophageal external compression, occupying approximately 1/4 of the circumference. Both landmarks were identified using white light on the anterior esophageal quadrant. In the sub-study, the left main bronchus was identified in 24 (92%) patients at 25.4 cm (SD 2.1) and 26.7 cm (SD 1.9) from the incisors, by white light and EUS, respectively. The left atrium was recognized in all patients at 30.5 cm (SD 1.9), and 31.6 cm (SD 2.3) from the incisors, by both white light and EUS, respectively. EUS confirmed that the landmarks corresponded to these two structures, respectively, and that they were located on the anterior esophageal wall. The Bland-Altman plot demonstrated high agreement between the white light and EUS measurements.

CONCLUSION

This study provides an endoscopic characterization of esophageal landmarks corresponding to the left main bronchus and left atrium, to permit radial and longitudinal orientation and accurate lesion location.

The effect of using simethicone with or without N-acetylcysteine before gastroscopy: A meta-analysis and systemic review

BACKGROUND/AIM

To assess the efficacy and safety of simethicone with or without N-acetylcysteine (NAC) as premedications before gastroscopy.

MATERIALS AND METHODS

We searched EMBASE, PubMed, Cochrane library and Web of Science database for randomized clinical controlled trials regarding simethicone ± NAC as oral drinking agents before gastroscopy. Statistical software RevMan5.3 was used for statistical analysis.

RESULTS

Ten randomized clinical trials that fulfilled the inclusion criteria were further pooled into a meta-analysis, which included 5,750 patients. The rate of positive findings in simethicone plus NAC group was higher than that in water group (risk ratio [RR] =1.31, 95%CI: 1.12-1.53, P = 0.0006) with high level of evidence. There was no significant difference on the rate of positive findings when comparing simethicone with simethicone plus NAC (RR = 1.02, 95%CI: 0.90-1.16, P = 0.71) and with water (RR = 1.13, 95%CI: 0.82-1.55, P = 0.46), respectively. Simethicone plus NAC showed better total mucosal visibility score than simethicone alone (MD = -0.14 (-0.25, -0.03), P = 0.01) without obvious heterogeneity. Both simethicone plus NAC and simethicone alone offer more benefit than water. The procedure time in simethicone group was shorter than that in water group (MD = -1.23 (-1.51, -0.96), P < 0.00001). Regarding adverse events, there was no significant difference in simethicone and water group (RR = 0.45, 95%CI: 0.2-1.0, P = 0.05, I² = 0%).

CONCLUSIONS

As premedication of gastroscopy, simethicone plus NAC offers more benefit on positive findings and total mucosal visibility score.

How to measure quality in endoscopic ultrasound

Quality is a key focus for gastrointestinal endoscopy and main international gastroenterology societies instituted specific task forces focused on this issue. Endoscopic ultrasound (EUS) represents one of the most fascinating fields to explore in gastrointestinal endoscopy due to its relatively limited availability out of high-volume centers. This leads to a particular need to define widely accepted quality indicators (QIs) and the ways to measure them. The current manuscript reviews these indicators in light of their impact on common clinical practice.

Endoscopic training in gastroenterology fellowship: adherence to core curriculum guidelines

BACKGROUND

The Gastroenterology Core Curriculum and American Society of Gastrointestinal Endoscopy provide guidelines for endoscopic training. Program adherence to these recommendations is unclear. This study aims to assess endoscopic training experience during fellowship.

METHODS

DESIGN

Questionnaire study.

SETTING

The questionnaire was circulated to US fellowship programs, with the assistance of the American Gastroenterological Association.

PARTICIPANTS

Graduating third-year fellows.

RESULTS

Seventy-three fellows returned the questionnaire. Nearly all fellows met the required numbers for esophagoduodenoscopy (98%) and colonoscopy (100%), with fewer meeting requirements for PEG (73%) and non-variceal hemorrhage (75%). The majority of fellows did not meet minimum numbers for variceal banding (40%), esophageal dilation (43%), capsule endoscopy (42%). Fellows rated training in cognitive aspects of endoscopy as 3.86 [1 (inadequate), 5 (excellent)] and reported greatest emphasis on interpreting endoscopic findings and least on virtual colonography. Quality indicators of endoscopy received little emphasis (rating of 3.04; p = 0.00001), with adenoma detection rate being least emphasized. Fifty-six percent of fellows reported having routine endoscopy conferences. Half of the programs have endoscopic simulators, with 15% of fellows being required to use simulation. Following direct hands-on experience, fellows rated external endoscopy courses (64%) as the next most useful experience.

CONCLUSIONS

Many fellows do not meet required numbers for several endoscopic procedures, and quality indicators receive little emphasis during training. Most programs do not provide simulation training or hold regular endoscopy conferences. Fellowship programs should perform internal audits and make feasible adjustments. Furthermore, it may be time for professional societies to revisit training guidelines.

Barrett's oesophagus diagnostic criteria: endoscopy and histology

This review summarizes the endoscopic and histologic features of Barrett's oesophagus(BO) as well as some of the recent advancements and controversies. BO represents metaplastic conversion of normal squamous epithelium of tubular oesophagus to columnar epithelium. The diagnosis of BO requires a combination of endoscopic and histopathologic findings. There is worldwide controversy regarding the exact definition of BO, particularly with regard to the requirement to histologically identify goblet cells in biopsies. The presence and detectability of goblet cells might vary depending on a variety of factors and is subject to sampling error. Therefore, a systematic biopsy sampling with sufficient number of biopsies is currently recommended to limit the likelihood of a false negative result for detection of goblet cells. There are both endoscopic and pathologic challenges in evaluating gastro-oesophageal junction biopsies in patients with irregular Z lines to determine the exact location of the sample (i.e., oesophagus versus stomach). Recently, several novel endoscopic techniques have been developed to improve BO detection. However, none have been validated yet in clinical practice. The surveillance of patients with BO relies on histologic evaluation of dysplasia. However, there are significant pathologic limitations and diagnostic variability in evaluating the presence and grading of BO dysplasia, particularly with regard to the more recently recognized non-intestinal types of dysplasia. All BO dysplasia samples should be reviewed by an expert gastrointestinal pathologist to confirm the diagnosis. Finally, it is important to emphasize that close interaction between gastroenterologists and pathologists is essential to ensure proper evaluation of endoscopic biopsies in order to optimize the surveillance and clinical management of patients with BO.

A tool to predict risk for gastric cancer in patients with peptic ulcer disease on the basis of a nationwide cohort

BACKGROUND & AIMS

Patients with gastric ulcers have significantly higher risk of gastric cancer, especially within 2 years after diagnosis. We used data from a national database to develop a personalized risk prediction model for patients with peptic ulcer diseases.

METHODS

We collected data from Taiwan's National Health Insurance Research Database on 278,898 patients admitted for the first time with a primary diagnosis of peptic ulcer disease. We used the data to develop a nomogram, which we validated by discrimination and calibration, and in a test cohort. Cumulative incidences of study subjects predicted by the nomogram were examined.

RESULTS

In total, 1269 subjects developed gastric cancer. Age, sex, peptic ulcer sites, peptic ulcer complications, Helicobacter pylori eradication, nonsteroidal anti-inflammatory drug use, and surveillance endoscopy were independent factors associated with risk of gastric cancer (all P < .001). The concordance index for the nomogram developed on the basis of these factors was 0.78. Study subjects were divided into quartiles of predicted risk scores; from lowest score quartile to highest, cumulative incidences at 1 year were 7.4/10,000 people, 14.2/10,000 people, 25.5/10,000 people, and 86.6/10,000 people. The cumulative incidences at 2 years were 9.3/10,000 people, 20.9/10,000 people, 38.0/10,000 people, and 135.7/10,000 people for the same quartiles of risk scores. The nomogram was validated in an independent cohort, and similar incidence values were determined.

CONCLUSIONS

We developed and validated a nomogram to predict risk for gastric cancer 1 and 2 years after diagnosis of peptic ulcer disease. The nomogram provides a prognostic tool that can be easily used for individuals and can help physicians explain risk levels to patients.

Positive correlation between endoscopist radiofrequency ablation volume and response rates in Barrett's esophagus

BACKGROUND

Radiofrequency ablation (RFA) has become an accepted form of endoscopic treatment for Barrett's esophagus (BE), yet reported response rates are variable. There are no accepted quality measures for performing RFA, and provider-level characteristics may influence RFA outcomes.

OBJECTIVE

To determine whether endoscopist RFA volume is associated with rates of complete remission of intestinal metaplasia (CRIM) after RFA in patients with BE.

DESIGN

Retrospective analysis of longitudinal data.

SETTING

Three tertiary-care medical centers.

PATIENTS

Patients with BE treated with RFA.

INTERVENTION RFA MAIN OUTCOME MEASUREMENTS

For each endoscopist, we recorded RFA volume, defined as the number of unique patients treated as well as corresponding CRIM rates. We calculated a Spearman correlation coefficient relating these 2 measures.

RESULTS

We identified 417 patients with BE treated with RFA who had at least 1 post-RFA endoscopy with biopsies. A total of 73% of the cases had pretreatment histology of high-grade dysplasia or adenocarcinoma. The procedures were performed by 7 endoscopists, who had a median RFA volume of 62 patients (range 20-188). The overall CRIM rate was 75.3% (provider range 62%-88%). The correlation between endoscopist RFA volume and CRIM rate was strong and significant (rho = 0.85; P = .014). In multivariable analysis, higher RFA volume was significantly associated with CRIM (P for trend .04).

LIMITATIONS

Referral setting may limit generalizability. Limited number of endoscopists analyzed.

CONCLUSION

Endoscopist RFA volume correlates with rates of successful BE eradication. Further studies are required to confirm these findings and to determine whether RFA volume is a valid predictor of treatment outcomes in BE.

Upper endoscopy in children: do symptoms predict positive findings?

Upper endoscopy (esophagogastroduodenoscopy or EGD) is an important diagnostic tool for many gastrointestinal symptoms. In recent years, the number of EGDs has increased dramatically. Unfortunately, the rate of negative (normal) EGD in children is high, approximating 50% of all procedures. To decrease the cost of EGD procedures, it is important to assess which clinical symptom would detect positive findings. This information may also be valuable in improving the referral practices of the primary care physicians for EGD. In a retrospective study, we investigated the pathological yield of the first EGD in children referred for various symptoms. Abdominal pain was the most common referral symptom and the best predictor of positive EGD, reaching an accuracy level of 79.9%. All other investigated symptoms had less than 50% accuracy. We concluded that most gastrointestinal symptoms in children have a poor predictive value for positive EGD. A cost-benefit analysis of EGD in children is needed.

The diagnostic yield of upper endoscopy procedures in children- is it cost effective?

Upper endoscopy is an invaluable tool for the diagnosis and treatment of various gastrointestinal symptoms in children. Over the years, the number of endoscopic procedures performed in different medical centers has increased considerably and the cost associated with the procedure has become unsustainable. Recently, the US government has investigated this topic and has suggested steps to reduce the cost and use of endoscopic procedures in the adult population, changes that have not been accepted favorably by the American Gastroenterology Associations (AGA). In the present report, we evaluate the diagnostic yield of the procedure in children and suggest steps to reduce the annual number of upper endoscopic procedures in children. The diagnostic yield and the cost-effectiveness of the procedure are also discussed.

Location, size, and distance: criteria for quality in esophagogastroduodenos copy reporting for pre-operative gastric cancer evaluation

BACKGROUND

There is a lack of existing literature regarding the quality of esophagogastroduodenoscopy (EGD) reporting for gastric cancer evaluation. This study aims to determine criteria for quality endoscopic evaluation of gastric cancer in North America by identifying important features of the EGD report for pre-operative evaluation of gastric cancer and assessing inclusion of these features in existing reports.

METHODS

Semi-structured interviews were conducted with experienced endoscopists from community and academic hospitals affiliated with the University of Toronto to identify essential elements for an EGD report. Then, 225 EGD reports from 2005 to 2008 were evaluated by two trained reviewers for inclusion of recommended EGD report elements and global assessment of report quality and adequacy for surgical planning.

RESULTS

Essential elements recommended by interviewed endoscopists include tumor size, location, and distance from gastroesophageal junction (GEJ). Approximately 95 % of all reports documented the location of lesions, <5 % documented distance from the GEJ, and <15 % documented tumor size. Overall report quality was rated as excellent for 4-5 % of reports; 20-42 % of all reports were deemed to be adequate for surgical planning. All surgeons interviewed as part of the endoscopist panel indicated that they would repeat the EGD before consulting with patients regarding surgical planning.

CONCLUSIONS

For pre-operative evaluation of gastric cancer, tumor size, location, and distance from key anatomical landmarks were proposed as essential elements of a quality EGD report. Most of the reviewed reports did not document these elements. Report quality is perceived to be poor and may lead to repeat endoscopy. Developing a standardized EGD reporting format based on inclusion of individual parameters can improve the quality of gastric cancer management.

Gastrointestinal endoscopy in Nigeria--a prospective two year audit

Introduction

Gastrointestinal (GI) endoscopy is currently performed by different specialties. Information on GI endoscopy resources in Nigeria is limited. Training, cost, availability and maintenance of equipment are some unique challenges. Despite these challenges, the quality and completion rates are important.

Methods

Prospective audit of endoscopic procedures by an endoscopist in a Nigerian hospital over a 24 month period.

Results

One hundred and ninety endoscopic procedures were performed in 187 patients (109 male, 78 female) by a surgeon during this period. Mean age was 47.6 years (range 17 - 90 years). All patients were symptomatic. One hundred and twenty-two procedures (64.2%) were upper GI endoscopy, 52 (27.4%) colonoscopy and 16 (8.4%) sigmoidoscopy. Majority of endoscopies 182 (95.8%) were performed electively and only 7 (3.7%) were therapeutic. Upper GI endoscopy findings included 14 (11.5%) cases of peptic ulcer disease, 5 complicated by gastric outlet obstruction, and 21 (17.3%) cases of upper gastrointestinal cancer. Lower gastrointestinal endoscopy findings included 7 cases of polyps, 3 cases of colorectal cancer and 2 cases of diverticulosis. Commonest lesion on lower GI endoscopy was haemorrhoids (41.7%). Adjusted caecal intubation was 81.4% for colonoscopies performed. Overall adenoma detection rate for male and female patients were 18.2% and 5.3% respectively; in patients over 50 years these were 6.3% and 14.3%. Two complications, rupture of oesophageal varices, and respiratory arrest in bulbar palsy patient occurred.

Conclusion

An endoscopist can perform GI endoscopy effectively in developing countries like Nigeria but attention to equipment need and training is important.

Quality in colonoscopy reporting: an assessment of compliance and performance improvement

BACKGROUND

An ASGE-ACG task force developed quality indicators (QI) for documenting quality endoscopic procedures. Acceptable compliance rates have not been determined.

AIMS

To determine our degree of compliance to the intra-procedure colonoscopy QI prior to intervention, design an educational intervention to improve those with low compliance, and to compare the degree of compliance after intervention.

METHODS

300 patients undergoing colonoscopy in the pre-intervention time period followed by 300 patients after the educational intervention were reviewed. Endoscopists were instructed on the required QI and provided with their individual baseline compliance results. Dictated endoscopy reports were reviewed for compliance.

RESULTS

Four QIs; documentation of bowel preparation adequacy, appendiceal orifice, photographs of cecum, and polyp shape, had low pre-intervention achievement (64%, 53%, 20%, and 15% respectively) and significant change was observed (83%, 68%, 63%, and 54% respectively, all p<0.001). Four QIs; documentation of ileocecal valve, polyp size description, polyp location description, and follow up recommendations, had high levels of achievement prior to intervention (92%, 98%, 97% and 81% respectively) and no significant change was observed (all p≥0.16).

CONCLUSION

This study provides benchmarks for ASGE/QIs in colonoscopy cases in a large group practice model. It demonstrates that a quality improvement intervention can result in improved compliance.

Endoscopist specialty is associated with high-quality endoscopy in Korea

PURPOSE

The present study was aimed to determine whether endoscopist specialty is associated with high-quality endoscopy.

MATERIALS AND METHODS

We prospectively collected endoscopy quality related data based on the Endoscopy Quality Rating Scale (EQRS) of 277 endoscopy units in a hospital setting from the National Cancer Screening Program of Korea in 2009. Gastroenterology medical professors (n=154) from university hospitals visited each endoscopy unit and graded the unit according to the EQRS. The scores from the EQRS were analyzed and compared in relation to endoscopy training during residency and endoscopy subspecialist certification.

RESULTS

After excluding data from 3 endoscopy units, EQRS data from 274 endoscopy units were analyzed: 263 esophagogastroduodenoscopy (EGD) screening units and 90 colonoscopy screening units. There were no significant differences in the scores of EQRS with respect to endoscopy training during residency (p=no significance), except for scores of EGDs for "Facility and Equipment" (p=0.030). However, EQRS scores were significantly higher in the endoscopy units where endoscopy subspecialists performed the endoscopies than those where Endoscopy Subspecialists did not perform the endoscopies (p<0.05, except p=0.08 for the "Process" criteria of EGD).

CONCLUSION

Endoscopist specialty is an important determinant of high-quality endoscopy in Korea.

Medical practice integration: going big in private practice

Historically, gastroenterologists entered into solo, small group, or academic practices. The current economic environment and looming regulatory mandates have led to gastroenterologists integrating into large, single-specialty groups to acquire costly practice infrastructure, gain negotiating leverage with health plans, promote high-quality care, and benefit from professional practice management. Individual gastroenterologists must assess whether a large practice will meet their personal goals, financial needs, and professional visions. The decision to integrate into a large practice will also be affected by local practice patterns and regulatory issues. For these and other reasons, gastroenterologists are going big in private practice.

Quality assurance for endoscopists

Quality assurance for gastrointestinal endoscopy addresses numerous aspects of unit management and patient care. Quality measures pertinent to patient care delivered by the individual endoscopist include optimal practices in the pre-procedure, intra-procedure, and post-procedure timeframes. Measures commonly employed to monitor colonoscopy care are discussed in detail. Several quality assurance techniques are well defined and useful for application to identified gaps in care. Quality improvement projects and ongoing quality assurance benchmarking against local and national norms are greatly facilitated by use of electronic report generators and computerized databases.

Catastrophic gastrointestinal manifestations of post-transplant lymphoproliferative disorder

Post-transplant lymphoproliferative disorder is a rare complication after bone marrow transplantation and frequently involves gastrointestinal tract, but the endoscopic characteristics and catastrophic clinical manifestations in adults have not been discussed in detail. We report a 35-year-old allogeneic bone marrow transplantation recipient who presented with recurrent gastrointestinal bleeding. Ulcerative nodular lesions were noted in stomach, duodenum and ileum on endoscopy but were not biopsied because of thrombocytopenia. Obstruction and perforation of small intestine occurred 5 months after bone marrow transplantation and was managed with surgery. Histopathology revealed the diagnosis of Epstein-Barr virus related post-transplant lymphoproliferative disorder. Rituximab was given after operation but repeated intestinal perforation supervened and resulted in mortality. The characteristic endoscopic and radiographic features are presented. Recognition of these characteristic endoscopic and radiographic findings with histological confirmation is crucial in making early diagnosis, and prompt treatment may prevent gastrointestinal complications and mortality.

Quality in EUS: an assessment of baseline compliance and performance improvement by using the American Society for Gastrointestinal Endoscopy-American College of Gastroenterology quality indicators

BACKGROUND

An American Society for Gastrointestinal Endoscopy-American College of Gastroenterology (ASGE-ACG) task force recently developed quality indicators for the preprocedure, intraprocedure, and postprocedure phases of each endoscopic procedure. Benchmark rates and clinical significance of compliance have not been determined.

OBJECTIVES

To establish baseline compliance rates to the preprocedure and intraprocedure quality indicators in our EUS cases, identify indicators with the lowest compliance rates, and establish change in compliance rates with a targeted performance improvement plan.

METHODS

We measured baseline compliance to each of the preprocedure and intraprocedure EUS quality indicators in the EUS procedures performed at Mayo Clinic Jacksonville from March 1996 through August 2006. We developed a performance improvement plan that targeted the 4 indicators with the lowest compliance over the entire time period. Compliance rates in the year after plan implementation were compared with those from January 2004 to August 2006, when adjusting for endoscopist and direct access.

RESULTS

We demonstrated areas of high quality as well as areas for improvement in compliance with the ASGE-ACG quality metrics in a large cohort of EUS cases. We achieved improvement in all 4 areas targeted for quality improvement, statistically significant at the 5% level for two of the quality indicators.

LIMITATIONS

Limitations included our retrospective design and the use of unstructured procedure dictations that may limit application of our results. It is also unclear whether compliance was truly synonymous with performance.

CONCLUSIONS

We established reference levels of compliance rate within our practice and showed that a targeted performance improvement plan that consisted of awareness, individual accountability, and documentation can result in improvement.

Endoscopy in Barrett's oesophagus: adherence to standards and neoplasia detection in the community practice versus hospital setting

OBJECTIVE

Potential process differences between hospital and community-based endoscopy for Barrett's oesophagus have not been examined. We aimed at comparing adherence to guidelines and neoplasia detection rates in medical centres (MC) and community practices (CP).

DESIGN

Retrospective analysis.

SETTING

All histologically confirmed Barrett cases seen over a 3-year period in six MC and 19 CP covering a third of all upper gastrointestinal endoscopies (n = 126,000) performed annually in Berlin, Germany.

MAIN OUTCOME MEASURE

Rate of relevant neoplasia (high-grade intraepithelial neoplasia or more) in both settings in relation to adherence to standards.

RESULTS

Of 1317 Barrett cases, 66% were seen in CP. CP patients had a shorter mean Barrett length (2.6 cm vs. 3.8 cm; P < 0.001) with fewer biopsies taken during an examination (2.5 vs. 4.1 for Barrett length <or=2 cm; P < 0.001). CPs also provided fewer complete esophagogastroduodenoscopy documentation (25.1% vs. 57.8%, P < 0.001). Neoplasias were found more commonly in MCs compared to CPs (9.2% vs. 0.8%; P < 0.001). However, on exclusion of all referred patients with known neoplasia (65%) or those examined for other reasons (27.5%), the detection rate at MCs decreased to 1.3%, not different from the one seen at CPs (0.8%, P = 0.43). Only 13% were found during surveillance, but 57% were diagnosed at an early stage.

CONCLUSIONS

Referral bias and not better adherence to guidelines could explain the higher neoplasia prevalence in Barrett's oesophagus at hospital centres. Despite a generally poor adherence to guidelines, most neoplasias found were at an early and potentially curable stage.

Impact of feedback and didactic sessions on the reporting behavior of upper endoscopic findings by physicians and nurses

BACKGROUND & AIMS

Guidelines for reporting Barrett's esophagus and hiatal hernia measurements and reflux esophagitis grades have been developed to improve consistency, communication, and, ultimately, patient care. Our aims were to assess the percentage of cases in which findings were reported in accordance with guidelines and to assess the impact of education and feedback on reporting behavior.

METHODS

Prospective cross-sectional study design was used. Chart reviews were performed for all adult patients who underwent esophagogastroduodenoscopy at a tertiary care center during three 2-month time periods during a 12-month interval: Time 1 (March 1, 2004-April 30, 2004), Time 2 (July 1, 2004-August 31, 2004), and Time 3 (March 1, 2005-April 30, 2005). Standardized educational sessions began 2 years before Time 1. No intervention took place between Time 1 and Time 2; data were collected to examine secular change. Between Time 2 and Time 3, individual and group feedback and refresher sessions were given.

RESULTS

Five thousand six hundred nine eligible esophagogastroduodenoscopies were performed, of which 2675 demonstrated Barrett's esophagus, hiatal hernia, and/or reflux esophagitis. At baseline, Barrett's esophagus and hiatal hernia measurements were dictated correctly in a median of 67% and 86% of cases, respectively, improving to 100% (P < .05) and 98% (P < .01) of cases, respectively. The Los Angeles Classification system was used in a median of 100% of cases at baseline and at follow-up.

CONCLUSIONS

Anonymous individual and group feedback, in combination with brief, structured didactic educational sessions, significantly improves compliance with established guidelines for the reporting of Barrett's esophagus and hiatal hernia. Once successfully incorporated into clinical practice, adherence to the esophagitis Los Angeles Classification System is easy to maintain.