Advanced Endoscopic Procedures Research Articles

Prevention of post-ERCP pancreatitis: current strategies and novel perspectives.

Endoscopic retrograde cholangiopancreatography (ERCP) is an advanced endoscopic procedure that might lead to severe adverse events. Post-ERCP pancreatitis (PEP) is the most common post-procedural complication, which is related to significant mortality and increasing healthcare costs. Up to now, the prevalent approach to prevent PEP consisted of employing pharmacological and technical expedients that have been shown to improve post-ERCP outcomes, such as the administration of rectal nonsteroidal anti-inflammatory drugs, aggressive intravenous hydration, and the placement of a pancreatic stent. However, it has been reported that PEP originates from a more complex interaction of procedural and patient-related factors. Appropriate ERCP training has a pivotal role in PEP prevention strategy, and it is not a chance that a low PEP rate is universally considered one of the most relevant indicators of proficiency in ERCP. Scant data on the acquisition of skills during the ERCP training are currently available, although some efforts have been recently done to shorten the learning curve by way of simulation-based training and demonstrate competency by meeting technical requirements as well as adopting skill evaluation scales. Besides, the identification of adequate indications for ERCP and accurate pre-procedural risk stratification of patients might help to reduce PEP occurrence regardless of the endoscopist's technical abilities, and generally preserve safety in ERCP. This review aims at delineating current preventive strategies and highlighting novel perspectives for a safer ERCP focusing on the prevention of PEP.

Comparing general anaesthesia versus sedation for endoscopic submucosal dissection: results from asystematic review and meta-analysis.

Endoscopic submucosal dissection (ESD) is an advanced endoscopic procedure for management of gastrointestinal tumours. ESD is usually performed under sedation. However, the use of general anaesthesia (GA) has been hypothesised to improve ESD outcomes. We performed a systematic review and meta-analysis to compare GA against sedation in ESD. A systematic literature search was performed on Cochrane Library, EMBASE and MEDLINE using the terms "General Anaesthesia", "Sedation" and "Endoscopic submucosal dissection". Original articles comparing GA versus sedation in ESD were included. The risk of bias and level of evidence were assessed by validated methods. This review is registered in PROSPERO (CRD42021275813). 176 articles were found in the initial literature search, and 7 articles (comprising 518 patients receiving GA and 495 receiving sedation) were included. Compared with sedation, GA was associated with higher en-bloc resection rates in oesophageal ESD (RR 1.05; 95% CI: 1.00-1.10; I 2 = 65%; P = 0.05). GA patients also trended towards lower rates of gastrointestinal perforation in all ESD procedures (RR 0.62; 95% CI: 0.21-1.82; I 2 = 52%; P = 0.06). Rates of intra- procedural desaturation and post-procedural aspiration pneumonia were lower in GA patients than in patients under sedation. The included studies had a moderate to high risk of bias, and the overall level of evidence was low. GA appears safe and feasible for ESD, yet high-quality trials will be required before GA can be regularly implemented for ESD.

Laparoendoscopic hybrid procedure - Oncologically safe and feasible option for gastrointestinal stromal tumours of the stomach.

Minimally invasive resection of gastrointestinal stromal tumours of the stomach is a feasible alternative to the traditional open approach, without the need for advanced laparoscopic training, as lymph node dissection is not necessary and excision with a negative margin is the only requirement. The loss of tactile feedback is a known drawback of laparoscopic surgery, causing difficulty in assessing the margin of resection. Earlier described laparoendoscopic techniques require advanced endoscopic procedures, which are not readily available in all places. We present a novel method wherein we use an endoscope to guide the resection margins during laparoscopic surgery. In our experience of five patients, we were able to successfully use this technique to get the negative margins pathologically. This hybrid procedure can thus be used to ensure adequate margin, keeping all the benefits of laparoscopic surgery.

Imported parasitosis as a diagnostic challenge in Primary Healthcare Clinic in the non-endemic region — a case study of schistosomiasis in English Division student

Schistosomiasis is a parasitosis, most commonly caused by Schistosoma mansoni or Schistosoma haematobium, eventually by other species from the genus Schistosoma (blood flukes). This study presents a case of schistosomiasis in an African-origin student cured in the Primary Healthcare Clinic (PHC) in Lublin, Poland. The young adult male patient from Zimbabwe, studying in Poland, presented to the PHC, due to pain in the left down quadrant of the abdomen, bloody stools, and a single episode of drooling with a blood-stained jelly-like mass, without fever. In blood tests, there was neutropenia, lymphocytosis and eosinophilia. In a colonoscopy, numerous lymphoid nodules were observed with small regions of mucosal erythema, faded vascular drawing, and delayed small contact bleeding. The patient had an elevated level of IgE (329,5 IU/mL; N < 158) and minor abnormalities in the proteinogram. Abdominal CT showed calcification of intestinal walls, suggesting infection of flukes from the Schistosoma genus. The result of histopathological examination confirmed the presence of structures interpreted as parasite eggs in intestinal crypts, lamina propria and the lumen of mesenteric vessels. It is of great importance, that general medicine physicians working in schistosomiasis non-endemic regions are aware and pay attention to various risks as well as provide referrals to advanced imaging and endoscopic procedures in patients with unusual health problems. Keeping in mind, that early signs and symptoms of schistosomiasis, and results of blood tests may remain unspecific in contrast to a more complex gastrointestinal diagnostic approach, a chance of early diagnosis and successful therapeutic intervention may be facilitated.

Distal Endoscopic Attachments

AbstractEndoscopy is an evolving science and the last two decades has seen it expand exponentially at a pace unapparelled in the past. With the advancement in new procedures like image-enhanced endoscopy, magnifying endoscopy, third space endoscopy, and highly advanced endoscopic ultrasound procedures, endoscopic accessories are also evolving to cater the unmet needs. Endoscopic cap or distal attachment cap is a simple but very important accessory in the endoscopists' armamentarium which has changed the path of endoscopic procedures. It has so far been used commonly mostly for variceal ligation and endoscopic mucosal resections for colorectal polyps. But the horizon of its use has expanded in the recent years for difficult clinical scenarios like providing stability to the endoscope, overcoming blind spots during screening colonoscopies, maintaining clear field of vision during endotherapy of gastrointestinal bleeding, and during magnification endoscopy for lesion characterizations and so on. These caps are of different shapes, sizes, colors, and material depending on manufacturers and their implications while performing varied endoscopies. This review summarizes the clinical utilities of the cap in diagnostic as well as therapeutic endoscopy and its expanding indications of use.

Endoluminal management of colon perforations during advanced endoscopic procedures

BackgroundAdvanced endoscopic procedures are gaining attraction despite a steep learning curve, need for high dexterity, and potential complications. Colonic perforation is the most concerning adverse event during advanced endoscopic procedures. This study presents our experience on endoluminal management of iatrogenic colonic perforations. MethodsPatients who underwent advanced endoscopic procedures at a quaternary center from 2016 to 2021 were identified. Patients who had colonic perforations during advanced procedures and treated with endoscopic closure/clipping were included. Retrospective chart review was performed. Figures represent frequency (proportion) or median (interquartile range/range). ResultsThere were 22 (2.3%) immediate colonic perforations treated with endoscopic clipping out of 964 advanced endoscopic resections. The median age was 64 (interquartile range = 57–71) years and 50% of the patients were female; 16 (73%) resections were proximal to the splenic flexure. Median polyp size was 36 (20–55) mm. Closure was performed with endoscopic clips in 18 (82%) patients, and over-the-scope clips in 4 patients. Median hospital stay was 0.8 (0–4) days, and 13 (59%) patients were discharged the same day; 2 patients were admitted to the emergency department ≤24 hours of procedure. They underwent subsequent laparoscopic suture repair the same day. No one had segmental colon resection, and there were no complications within postoperative 30 days. Pathology revealed 9 (41%) tubular adenomas, 7 (32%) tubulovillous adenomas, 6 (27%) sessile serrated lesions, and no adenocarcinoma. No recurrence was observed with median follow-up of 24 months (range = 0–90 months). ConclusionEndoscopic management is an effective treatment approach for the management of iatrogenic colonic perforations.

Clinical outcomes of endoscopic submucosal dissection for colorectal neoplasms: A single-center experience in Southern Taiwan.

Endoscopic submucosal dissection (ESD) as an advanced endoscopic procedure can be considered for the removal of colorectal lesions with high suspicion of limited submucosal invasion or cannot be optimally removed by snare-based techniques. We aimed to analyze the clinical outcomes of ESD for colorectal neoplasms in our hospital. We retrospectively enrolled 230 patients with 244 colorectal neoplasms who received ESD procedures from April 2012 to October 2020 at Kaohsiung Chang Gung Memorial Hospital. Clinicopathological data were collected by chart review. We also recorded ESD-related complications and clinical outcomes. The average age was 64 years old, with a mean follow-up time of 22.59 months. There was a loss of follow-up in 34 lesions. Most lesions were lateral spreading tumors of the non-granular type. The average ESD time was 51.9 minutes. Nine cases (3.7%) had procedure-related complications, including two intra-procedure perforations (0.8%) and seven delayed bleeding (2.9%) without procedure-related mortality. 241 lesions (98.8%) achieved en-bloc resection, while 207 lesions (84.8%) achieved R0 resection. Most lesions were tubulo-(villous) adenoma. Malignancy included 35 adenocarcinomas and 5 neuroendocrine tumors. No local recurrence was developed during follow-up. Multivariate analysis for long ESD time revealed significance in size ≥ 10 cm2 and endoscopist's experience < 3 years. Pre-ESD endoscopic ultrasound revealed good prediction in discrimination of mucosal (sensitivity: 0.90) and submucosal lesion (specificity: 0.67). ESD for colorectal neoplasms is an effective and safe technique. Size ≥ 10 cm2 and endoscopist's experience < 3 years were significantly associated with long procedure time. Pre-ESD EUS provided a good prediction for colorectal neoplasms in invasion depth.

Advanced Endoscopic Procedures in Pregnancy.

Advanced Endoscopic Procedures in Pregnancy.

Advanced Endoscopy Training in UK –what's in there for Pakistan?

Gastrointestinal endoscopy revolutionized the diagnostic as well as therapeutic paradigms of many gastrointestinal diseases. Advanced endoscopy procedures like ERCP and EUS have gained paramount importance in recent times. Structured training in basic as well as advanced endoscopy techniques is essential to boost the confidence of the trainee and ensure positive patient outcomes. This review article used the databases, published literature, and a large number of research journals to find out the latest data on the standards of advanced endoscopy training to improve patient care. To excel in the field of endoscopy, studies have established that an endoscopy trainee should be assessed based on his skill and expertise; not based on a particular number of procedures. The endoscopists must benchmark their performance against their peers to assess their competency. The training of endoscopists should be on real patients, in addition to practice on simulators. Also, training programs and curricula should be well structured. With advanced endoscopy being established across the world in patient-care, it is the need of the hour to establish standards and mechanisms for endoscopy training in Pakistan. The UK systems can offer a roadmap to achieve this goal.

Efficacy and Safety of Deep Sedation and Anaesthesia for Complex Endoscopic Procedures-A Narrative Review.

Propofol sedation for advanced endoscopic procedures is a widespread technique at present, which generates controversy worldwide when anaesthetic or non-anaesthetic personnel administer this form of sedation. There is some evidence for safe administered propofol sedation by non-anaesthetic personnel in patients undergoing endoscopy procedures, but there are only few randomised trials addressing the safety and efficacy of propofol in patients undergoing advanced procedures. A serious possible consequence of propofol sedation is the rapid and unpredictable progression from deep sedation to general anaesthesia mostly when elderly and frail patients are involved in the diagnosis or treatment of various neoplasia. This situation requires rescue measures with skilled airway management. The aim of this paper is to review the safety and efficacy aspects of sedation techniques, with special reference to propofol administration covering the whole patient journey, including preassessment, sedation options and discharge when advanced endoscopic procedures are performed.

Effectiveness of single loading dose of dexmedetomidine combined with propofol for deep sedation of endoscopic retrograde cholangiopancreatography (ERCP) in elderly patients: a prospective randomized study

BackgroundEndoscopic retrograde cholangiopancreatography (ERCP) is an advanced endoscopic procedure and requires deep sedation. Deep sedation with dexmedetomidine for the respiratory drive preserved has become popular in recent years. However, the use of dexmedetomidine in elderly patients is controversial because its adverse events are more common. The objective of this study was to investigate the effectiveness of a single loading dose of dexmedetomidine combined with propofol for deep sedation of ERCP in elderly patients.MethodsIn this prospective randomized trial, 49 elderly patients undergoing ERCP were randomly allocated to the dexmedetomidine (DEX) or propofol (PRO) groups. The single loading dose of dexmedetomidine was set at 0.5 μg/kg at the start of anesthesia induction and loading for 10 min. The primary outcome was the cumulative dose of propofol. Secondary outcomes included time to awake, the frequency of airway interventions, and hemodynamics.ResultsThe intraoperative cumulative dose of propofol was lower in the DEX group (111.0 ± 12.6 μg/kg/min) than the PRO group (143.7 ± 23.4 μg/kg/min) (P < 0.001). There was no statistically significant difference in the time to awake between the two groups. The incidence of artificial airway interventions and hypotension in the PRO group (36%, 60%) were significantly higher than those in the DEX group (4.2%, 16.7%) (P = 0.011, P = 0.003, respectively). In addition, the occurrence of bradycardia increased significantly in the DEX group (58.3%) compared with the PRO group (12%) (P < 0.001).ConclusionsThe single loading dose of dexmedetomidine combined with propofol can reduce propofol consumption and artificial airway intervention and provide better hemodynamic stability than propofol for deep sedation in elderly patients during ERCP.Trial registrationwww.chictr.org.cn (Registration number ChiCTR1900028069, Registration date 10/12/2019).

Rectal neuroendocrine tumors: Current advances in management, treatment, and surveillance.

Rectal neuroendocrine neoplasms (r-NENs) are considered among the most frequent digestive NENs, together with small bowel NENs. Their incidence has increased over the past few years, and this is probably due to the widespread use of endoscopic screening for colorectal cancer and the advanced endoscopic procedures available nowadays. According to the current European Neuroendocrine Tumor Society (ENETS) guidelines, well-differentiated r-NENs smaller than 10 mm should be endoscopically removed in view of their low risk of local and distant invasion. R-NENs larger than 20 mm are candidates for surgical resection because of their high risk of distant spreading and the involvement of the muscularis propria. There is an area of uncertainty regarding tumors between 10 and 20 mm, in which the metastatic risk is intermediate and the endoscopic treatment can be challenging. Once removed, the indications for surveillance are scarce and poorly codified by international guidelines, therefore in this paper, a possible algorithm is proposed.

A 3D-printed innovative pedal fixator for connecting different pedal-operated tools to improve work ergonomics during advanced diagnostic and therapeutic endoscopic procedures.

A 3D-printed innovative pedal fixator for connecting different pedal-operated tools to improve work ergonomics during advanced diagnostic and therapeutic endoscopic procedures.

Anesthesia for Advanced Endoscopic Procedures

The gastrointestinal endoscopy paradigm is rapidly changing, and technological advancements are largely responsible. In tandem, anesthesia providers are adapting to the changing needs and demands. The challenges are unique. Complications arising from the procedures are both routine, such as aspiration and hypoxia, and procedure specific, such as bleeding, pneumothorax, pneumopericardium, and pneumoperitoneum. It is crucial for the anesthesia provider to have a good understanding of the techniques employed by the endoscopist. A higher index of suspicion is also essential to diagnose and appropriately manage many of the complications. In this review, an effort is made to discuss both procedural aspects and anesthesia challenges. We hope that both endoscopists and anesthesia providers will benefit from this review.

Endoscopic Resection of Upper Gastrointestinal Subepithelial Tumours: Our Clinical Experience and Results

Upper gastrointestinal subepithelial tumours (SETs) are generally asymptomatic and clinically insignificant and have malign, borderline and benign variants. In advanced endoscopic procedures, histopathological diagnosis and endoscopic resection are possible and feasible. In this study, we examined our approach to upper gastrointestinal subepithelial tumours and our clinical results. Adult patients who applied to Surgical Endoscopy unit between January 2014 and January 2015 were included in the study. The patients' files and final histopathological diagnoses were recorded and analysed retrospectively for this single-center study. SET lesion lower than 30 mm and the lesion whose endoscopic submucosal dissection attemption was included in the study. The total of 8 patients were four female (50%) and four male (50%), aged 31-66 years (median, 53 years). The tumoral lesions were located 4 (50%) patients in esophagus, 3 (37.5%) patients in stomach and one (12.5%) patient in duodenum and their diameter ranged from 5 to 30 mm (median, 14 mm). Post-interventional no complications or abdominal symptoms were encountered. Also, in early follow-ups for six months, no recurrence was observed. Our experiences together with literature reported here, indicated endoscopic resection is a safe and effective method of treatment for most patients with upper gastrointestinal SETs.

Impact of COVID-19 Pandemic on Gastroenterology Fellowship Training in Turkey: A Prospective Nationwide Survey Study.

The Coronavirus-2019 disease (COVID-19) pandemic has markedly restricted endoscopic and clinical activities in gastroenterology (GI), with a negative impact on trainee education. We aimed to inve stigate how and to what extent has GI trainees in Turkey are affected by the current pandemic in terms of general, psychological, and educational status. We conducted a web-based survey sent electronically to 103 official GI trainees in Turkey from 37 centers. The 32-item survey included questions to capture demographic (5-questions), endoscopic (7-questions), personal protective equipment (PPE) (3-questions), psychological and general well-being (11-questions), and educational (6-questions) data. Ninety-six (93.2%) trainees completed the survey, of which 56.3% (n = 54) reported a decrease in independently performed endoscopic procedures. Due to pandemic, 91.7% of standard diagnostic endoscopic procedures, 57.2% of standard therapeutic procedures, and 67.7% of advanced endoscopic procedures were decreased. Out of 96 respondents, we detected signs of anxiety in 88.5%, exposure concern in 92.7%, concerns for prolongation of training period in 49%, loss of concentration and interest in 47.9%, and burnout syndrome in 63.5%. Female gender (odds-ratio: 3.856, 95% confidence interval: 1.221-12.174, P = .021) was the only independently associated factor with pandemic-related anxiety. COVID-19 pandemic has led to high amounts of anxiety and non-negligible rates of burnout syndrome among GI trainees, with a significant reduction in endoscopic activities. More effort and novel strategies are required to deliver sufficient competence and general-psychological well-being to GI trainees.

S980 Point of Care Gastric Ultrasound for Predicting Residual Gastric Content and Risk of Aspiration in Ambulatory Patients for Advanced Endoscopy Procedures

Introduction: The risk of aspiration of gastric contents during endoscopy can be associated with significant morbidity and mortality. Even with complete fasting status, the gastric emptying times and residual gastric volumes other than basal secretions vary and depend on many patient factors. Bedside ultrasound imaging can be helpful in determining these gastric contents and volumes while enabling safe anesthesia practices. Our goals were to determine the gastric volume and compare the ultrasound guided gastric volumes in real time with endoscopist measured volumes. Methods: Patients presenting to the UAB endoscopy suite were taken written informed consent to participate in this study. The anesthesiologists experienced in performing gastric ultrasound performed the preoperative gastric ultrasound. The gastric cross-sectional area (CSA) is measured in supine and right lateral decubitus positions and gastric volumes calculated both using the nomograms and the formula. The anesthesia plan intraoperatively is based on the risk profile pattern of these gastric ultrasound estimates. The endoscopist blinded to these gastric ultrasound estimates performed endoscopy to suction the gastric volumes. These direct measured gastric volumes were then compared to calculated gastric volumes (CGV) to assess the degree of correlation and threshold values. Results: 81 patients were included in the study (Mean age 57.78 years, Male 49.38%, Mean BMI 29.83 patients). 2 patients were excluded as there was missing information or technical issues with documentation. Majority of patients underwent EUS (38.27%) followed by EGD ± therapy (30.86 %) ERCP (22.22%) and DBE (6.17 %). Mean CGV by nomogram is 33.84 ml, mean CGV by formula is 30.79 ml. Mean measures gastric volume by endoscopist is 28.64 ml. The gastric ultrasound was able to predict correlation significantly comparing measured gastric volume by endoscopy (ml) to CGV measured by nomogram (0.794, 95% CI for Pearson correlation (0.697-0.863) (Figure A) and measured gastric volume by endoscopy (ml) to CGV by formula (r=0.834 95% CI for Pearson correlation (0.753-0.890) (Figure B). There were no intra or post procedural adverse events noted in particular for aspiration. Conclusion: Gastric ultrasound acts as a reliable tool in predicting residual gastric volume and contents prior to undergoing anesthesia for advanced endoscopy procedures. This can potentially offer and guide preventive measures to prioritize on airway protection.Figure 1.: Measured gastric vol by

ID: 3526606 FEASIBILITY OF BEDSIDE GASTRIC ULTRASOUND AS A PRE-PROCEDURE PREDICTOR FOR RESIDUAL GASTRIC CONTENTS AND SAFE ANESTHESIA AIRWAY MANAGEMENT PLAN IN AMBULATORY PATIENTS FOR ADVANCED ENDOSCOPY PROCEDURES

The risk of aspiration of gastric contents can be associated with significant morbidity and mortality in anesthesia clinical practice and for deep sedation for endoscopy (ASGE). Even with complete fasting status, the gastric emptying times and residual gastric volumes other than basal secretions vary and depend on patient factors. Bedside ultrasound imaging can be helpful in determining gastric contents and volumes while enabling safe anesthesia practices Few studies have documented the feasibility in GI patients. We aimed to determine gastric volumes in patients presenting for advanced endoscopic procedures by comparing the ultrasound guided gastric volumes with endoscopist measured volumes.

ID: 3521475 COMPARING PATIENT SATISFACTION AMONG TELEMEDICINE, DIRECT ACCESS, AND IN-PERSON CLINIC PRE-PROCEDURE VISITS FOR GASTROINTESTINAL ADVANCED ENDOSCOPIC PROCEDURES

Background and aims: With the onset of the Coronavirus Disease 2019 (COVID-19) pandemic, healthcare providers abruptly changed their delivery of care to protect patients and staff from infection. One such change was to convert in-person advanced gastrointestinal endoscopy pre-procedure consultations to telemedicine visits. The use of telemedicine has been successfully used in the field of gastroenterology in managing symptoms and chronic conditions among established patients. However, to our knowledge, there is little literature on the utility of this modality for pre-procedure consultation visits, where patients often meet their proceduralists for the first time. The aim of this study was to compare overall patient satisfaction among those who had pre-procedure consultation visits by telemedicine, in –person, or a direct access procedure (instructions and procedure explained by a nurse practitioner or physicians assistant). Methods: Patients who had undergone an advanced endoscopic procedure at Long Island Jewish Hospital from the months of May 2020 to August 2020 were called by telephone and asked to complete a modified version of the validated patient satisfaction survey mGHAA-9. The survey was designed to assess patient satisfaction in their pre-procedure, intra-procedure, and post procedure experiences. Patients were grouped based on whether they had received an in-clinic consultation visit by the endoscopist, telemedicine consultation visit by the endoscopist, or direct access. Geographic location to the office, prior endoscopic experience, type of endoscopic procedure (diagnostic vs. therapeutic), and new gastrointestinal cancer diagnosis data were recorded. Results: Of the total 322 patients that were called, 123 agreed to participate (38%) and provided responses to the survey. There were 26 who had in person consultation visits, 32 who had telemedicine consultation visits, and 65 direct access visits. Overall mean satisfaction among the three groups did not reveal a statistically significant difference (p value= 0.983). Furthermore, sub-analysis of the preprocedure, intra procedure, and post procedure satisfaction scores did not reveal statistically significant differences (p=0.996, p=0.244, and p=0.998, respectively). However, patients with a new gastrointestinal cancer diagnosis had a statistically significant higher mean satisfaction score in those who had telemedicine visits with proceduralists compared to those who had direct access procedures (P=0.0116). Conclusion: Our study suggests that pre-procedure consultation visits by telemedicine, in-person, or direct access all have similar satisfaction scores among patients. However, telemedicine consultation visits with the endoscopist may be preferred over direct access in patients who have a clinically high suspicion for a new gastrointestinal cancer diagnosis. [Formula presented]

Per Oral Pyloromyotomy for Treatment of Gastroparesis in a Pediatric Patient

Per Oral Pyloromyotomy for Treatment of Gastroparesis in a Pediatric Patient