Techniques and Innovations in Gastrointestinal Endoscopy最新文献

Background and Aims

High-quality colonoscopy reduces the risk of death from colorectal cancer. The adenoma detection rate (ADR) is the principal measure of colonoscopy quality but is onerous to calculate. We report the development of a fully automated platform for calculation of the ADR and other key colonoscopy quality indicators without the need for manual data entry.

Methods

Endoscopy and pathology reports from 6 centers were collected over a 3-month period and collated using a novel data transfer interface. Text-based classification parameters were developed to identify average-risk screening colonoscopies, adenomatous pathology, cecal intubation, and withdrawal time. Automated quality metrics calculators based on these classifications were built into a web-based reporting platform, and the resulting quality metrics were benchmarked against those produced through a manual record review. Confirmation of the calculator's performance was performed in a validation cohort with data collected over a 1-month period, 6 months after the initial study.

Results

The study included 3809 colonoscopies (mean age 56.1 ± 6.40 years, 53.7% female, 38 endoscopists). The automated calculator yielded an ADR of 45.1% compared with 44.3% on manual review. Correct classification of ADR-qualifying screening colonoscopies was achieved with high predictive value, with a sensitivity of 0.918 and specificity of 1.0. The cecal intubation rate was 95.8%, and the average withdrawal time was 10:05 minutes.

Conclusion

We demonstrate the feasibility and performance of a colonoscopy quality reporting platform capable of calculating the ADR and other key metrics using novel, fully automated pathology report integration and a text query-based classification accessible in a wide range of practice settings.

Background and Aims

The advantages of esophageal hydraulic balloon dilation include the ability to dilate up to 30 mm without fluoroscopic guidance and real-time display of the esophagogastric junction diameter during dilation. We aimed to explore the safety and efficacy of esophageal hydraulic balloon dilation in patients with and without previous foregut surgery, as well as to evaluate for predictors of clinical success.

Methods

We reviewed our database for patients who had esophageal hydraulic balloon dilation, and patients were divided into those with and without previous foregut surgery. Clinical success was determined by improvement in Eckardt/Brief Esophageal Dysphagia Questionnaire scores or, if not available, by physician assessment documented in the medical records. Technical success was defined as the ability to successfully perform esophageal hydraulic balloon dilation with visualization of the waist and stabilization of the balloon. Univariate analysis and logistic regression were used to evaluate predictors of clinical success after dilation.

Results

Among 80 patients who had esophageal hydraulic balloon dilation (36 without and 44 with previous foregut surgery), clinical success was achieved in 48% of patients without previous foregut surgery (43% in achalasia and 73% in esophagogastric junction outflow obstruction) and 83% of patients with previous foregut surgery (87% in surgically treated achalasia and 80% in patients without achalasia with previous fundoplication). Technical success was achieved in 86% of patients without previous foregut surgery and 98% in patients with previous foregut surgery. There was 1 esophageal perforation (1.3%). Opiate use was a negative predictor of clinical success.

Conclusion

Clinical success rates after esophageal hydraulic balloon dilation differ depending on the patient's foregut surgery history. Opiate users appear to have a lower clinical success rate compared with nonusers.

This comprehensive review addresses the critical role of colonoscopy in colorectal cancer (CRC) prevention. With CRC as one of the most common cancer types in men and women, high-quality colonoscopy is vital to reduce CRC incidence and mortality. Persistent gaps in quality, evidenced by interval CRCs and large variations in both provider adenoma detection rate (ADR) and resection methods, highlight the need to prioritize colonoscopy quality improvement through feedback and training.

This review delves into key factors influencing colonoscopy quality with lesion detection and removal. Excellent bowel preparation is necessary for effective colonoscopy, impacting lesion detection, ADR, procedure time, and complication risk. Optimal inspection techniques, encompassing provider maneuvers and utilization of technological devices such as distal attachment devices and artificial intelligence, hold promise in enhancing inspection quality. For optimal lesion resection, we explore cold snare polypectomy as a safe, cost-effective, and efficacious technique, particularly for diminutive and small polyps, and endoscopic mucosal resection for large (≥20 mm) polyps.

We outline the importance and critical need for quality assurance programs and to implement education science principles into endoscopy training. Innovative simulation-based mastery learning training, which includes various educational strategies to engage endoscopists in deliberate practice with assessment and feedback, holds great potential to efficiently scale the practice of high-quality colonoscopy to improve ADR and resection methods.

Background and Aims

Patients with a low body mass index (LBMI) are often encountered in routine outpatient gastrointestinal (GI) endoscopy practice, and the assessment of procedure-related risks in this subset of individuals remains paramount. Although the risk of endoscopy-related adverse events (AEs) has been reported in patients with obesity, the association between LBMI and AEs has not been established.

Methods

We conducted a retrospective cohort study using TriNetX, a multi-institutional database, to assess the risk of endoscopy-related AEs in patients with LBMI (<18.4 kg/m²) compared with patients with a nonobese body mass index (18.5-29.9 kg/m²) (control cohort) after low-risk outpatient diagnostic esophagogastroduodenoscopy (EGD), colonoscopy, or percutaneous endoscopic gastrostomy (PEG) tube placement. One-to-one (1:1) propensity score matching was performed. The primary endpoints were to assess the risk of GI bleeding, perforation, or aspiration pneumonia within 30 days. Risk was expressed as adjusted odds ratios (aORs) with 95% confidence intervals.

Results

A total of 28,677, 18,449, and 3076 patients with LBMI underwent EGD, colonoscopy, and PEG tube placement, respectively. After propensity score matching, compared with the control cohort, patients with LBMI undergoing EGD and colonoscopy with or without biopsies were at an increased risk for GI bleeding (aOR 1.36 and 2.21), perforation (aOR 1.96 and 2.65), and aspiration pneumonia (aOR 3.13 and 2.71), respectively. Additionally, patients in the LBMI PEG cohort were found to be at an increased risk for aspiration pneumonia (aOR 1.33).

Conclusion

Our study shows that, when compared with nonobese controls, patients with LBMI are at an increased risk of endoscopy-related AEs. Appropriate precautions must be considered while performing routine endoscopic procedures to offset these risks in such patients.

Background and Aims

Endoscopic retrograde cholangiopancreatography (ERCP) is an invasive procedure that has evolved from being primarily diagnostic to predominantly therapeutic, leading to an increased potential for ERCP-related adverse events. Frailty is an independent predictor of adverse outcomes, and its impact on ERCP-related outcomes requires investigation. This study evaluated the impact of frailty on ERCP-related adverse events.

Methods

The National Inpatient Sample from 2016 to 2019 was used to identify adult patients who underwent ERCP. Frailty was defined using the Frailty Risk Score. Outcomes were categorized into procedure-related adverse events, sedation-related adverse events, and hospitalization outcomes. Multivariate linear or logistic regression was used as appropriate. Stata, version 14.2, was used to perform analyses considering a 2-sided P < 0.05 to be statistically significant.

Results

Among a total of 693,730 ERCPs performed, 870,30 (12.54%) were frail. Frail patients had higher odds of procedure-related adverse events, including hemorrhage (9.1/1000 vs 4.9/1000) and duodenal perforation, but not post-ERCP pancreatitis, bile duct perforation, cholecystitis, and cholangitis. Frailty imparted a higher risk of sedation-related respiratory failure, aspiration pneumonia, and the requirement of intubation and mechanical ventilation. Inpatient mortality was higher among frail patients (4.54% vs 1.03%), and they had prolonged hospital stays and higher hospitalization costs.

Conclusion

Frailty is associated with worse outcomes in patients undergoing ERCP, with higher risks of hemorrhage and sedation-related adverse events, in addition to increased resource utilization. Therefore, the findings of this study suggest strict adherence to guidelines governing anticoagulant management during the peri-endoscopic period, and sedative administration should be carefully monitored. Preprocedural optimization measures and diligent monitoring can minimize resource utilization and decrease periprocedural morbidity.

The need for endoscopic service has been well established within gastroenterology globally, and it is equally critical in areas with limited resources. We highlight the educational situation in underserved areas, pertinent goals to aim for, current initiatives and programs, as well as limitations and potential for improvement. Gastroenterology training for medical and surgical endoscopists includes variable components of basic and advanced endoscopies. Various models for training have been used, including traditional 1- to 3-year fellowships, short courses for upskilling, exchange programs, bolus or apprenticeship training, and training camps. There is a steadily increasing demand for endoscopic procedures in the region. We highlight the successes and challenges of current models, which are at various levels, including trainee, institutional, and even geopolitical. In addition, we explore the role that national and international societies as well as industry partners and other stakeholders play in influencing and implementing training. Given the diversity in access to resources as well as endoscopic capacity, we also highlight some of the innovative ways that have been used to provide and continue endoscopy training. Successful training also involves curriculum development, adoption of guidelines, and discussions on assessment of competency as well as having a glimpse into the future of endoscopy training in resource-limited settings. Ultimately, the goal is to ensure harmonized and quality training efforts across the various settings.