Endoscopic Ultrasound-based Shear Wave Elastography for Detection of Advanced Liver Disease.

BACKGROUND AND AIMS: Endoscopic ultrasound shear wave elastography (EUS-SWE) is a novel modality for liver stiffness measurement. The aims of this study are to evaluate the performance and reliability of EUS-SWE for detecting advanced liver disease in a prospective cohort. METHODS: EUS-SWE measurements were prospectively obtained from patients undergoing EUS between August 2020 and March 2023. Liver stiffness measurements were compared between patients with and without advanced liver disease (ALD), defined as stage ≥3, to determine diagnostic accuracy for advanced fibrosis and portal hypertension. Logistic regression was performed to identify variables that impact the reliability of EUS-SWE readings. Select patients underwent paired magnetic resonance elastography (MRE) for liver fibrosis correlation. RESULTS: Patients with ALD demonstrated higher liver stiffness compared to healthy controls (left lobe: 17.6 vs. 12.7 kPa, P<0.001; median right lobe: 24.8 vs. 11.0 kPa, P<0.001). The area under the receiver operator characteristic (AUROC) for the detection of ALD was 0.73 and 0.80 for left and right lobe measurements, respectively. General anesthesia was associated with reliable EUS-SWE liver readings (odds ratio: 2.73, 95% CI: 1.07-7.39, P=0.040). Left lobe measurements correlated significantly with MRE with an increase of 0.11 kPa (95% CI: 0.05-0.17 kPA) for every 1 kPa increase on EUS-SWE. D. CONCLUSIONS: SWE is a promising technology that can readily be incorporated into standard EUS examinations for the assessment of ALD.

The interventional direct peroral cholangioscopy toolbox for endoscopic snare resection of a high-grade biliary intraductal neoplasia.

Video 1Demonstration of techniques for performing direct peroral cholangioscopy.

Drainage of pancreatic fluid collections using a lumen-apposing metal stent with an electrocautery-enhanced delivery system.

BACKGROUND AND AIM: Our aim was to evaluate the efficacy and safety of a lumen-apposing metal stent with an electrocautery-enhanced delivery system (EDS-LAMS) for endoscopic ultrasound (EUS)-guided drainage of pancreatic fluid collections (PFCs) in regular clinical practice. METHODS: A retrospective and subsequent prospective analysis was undertaken of all patients who underwent EUS-guided drainage of their PFCs using the EDS-LAMS at 17 tertiary therapeutic endoscopy centers. RESULTS: Two hundred eight cases of EDS-LAMS deployment were attempted in 202 patients (mean age 52.9 years) at time of evaluation. Ninety-seven patients had pancreatic pseudocysts (PPs), 75 walled-off pancreatic necrosis (WOPN), 10 acute peripancreatic fluid collections (APFCs), 6 acute necrotic collections (ANCs), and 14 postoperative collections (POCs). Procedural technical success was achieved in 202/208 cases (97.1%). Maldeployment occurred in 7/208 cases (3.4%). Clinical success was achieved in 142/160 (88.8%) patients (PP 90%, WOPN 85.2%, APFC 100%, ANC 75%, POC 100%). Delayed adverse events included stent migration in 15/202 (7.4%), stent occlusion and infection in 16/202 (7.9%), major bleeding in 4/202 (2%), and buried EDS-LAMS in 2/202 (1%). PFC recurrence occurred in 13/142 (9.2%) patients; 9/202 (4.5%) required surgical or radiological intervention for PFC management after EDS-LAMS insertion. CONCLUSIONS: This large international multicenter study evaluating the EDS-LAMS for drainage of PFCs in routine clinical practice suggests that the EDS-LAMS are safe and effective for drainage of all types of PFCs; however, further endoscopic therapy is often required for WOPN. Major bleeding was a rare complication in our cohort.

Transpapillary gallbladder stent placement for long-term therapy of acute cholecystitis.

BACKGROUND AND AIMS: Select patients with acute cholecystitis (AC) are poor candidates for cholecystectomy. ERCP-guided transpapillary gallbladder (GB) drainage (ERGD) is one modality for nonoperative management of AC in these patients. Our primary aim was to evaluate long-term success of destination ERGD. Secondary aims were the rate of technical and clinical success, number of repeat procedures, rate of adverse events, and risk factors for recurrent AC. METHODS: Consecutive patients with AC who were not candidates for cholecystectomy underwent ERGD with attempted transpapillary GB plastic double-pigtail stent placement at a tertiary hospital from January 2008 to December 2019. Long-term success was defined as no AC after ERGD until 6 months, death, or reintervention. Technical success was defined as placement of at least 1 transpapillary stent into the GB and clinical success as resolution of AC symptoms with discharge from the hospital. RESULTS: Long-term success was achieved in 95.9% of patients (47/49), technical success in 96% (49/51), and clinical success 100% in those with technical success. Mild adverse events occurred in 5.9% (n = 3). Mean follow-up was 453 days after ERGD (range, 18-1879). A trend toward longer time to recurrence of AC was seen in patients with 2 rather than 1 GB stent placed (P = .13), and more repeat procedures were performed when a single stent was placed (P = .045). CONCLUSIONS: ERGD with transpapillary GB double-pigtail stent placement is a safe and effective long-term therapy for poor surgical candidates with AC. Risk factors for recurrence include stent removal and single-stent therapy. Double-stent therapy is not always technically feasible but may salvage failed single-stent therapy or recurrence after elective stent removal and may therefore be the preferred treatment modality.

Graft-vs-Host Disease After Liver Transplantation: A Diagnostic and Management Challenge.

A 65-year-old White man underwent deceased donor liver transplant for decompensated liver cirrhosis secondary to alpha-1-antitrypsin deficiency. He developed diarrhea and diffuse maculopapular rash 2 months post-transplant. Skin biopsy revealed necroinflammatory changes related to the superficial dermis. Pancytopenia ensued, complicated by neutropenic sepsis. Chimerism studies confirmed the presence of donor T-lymphocyte macrochimerism (63%). The patient was diagnosed with graft-vs-host disease. After extensive multidisciplinary collaboration, basiliximab was initiated. This resulted in complete symptom resolution and a gradual reduction in T-lymphocyte macrochimerism (12%). The patient was later transitioned to oral ruxolitinib and currently remains in stable condition 16 months after being diagnosed with graft-vs-host disease.

Endoscopic Ultrasound-Guided Gastrojejunostomy and Rescue Technique to Simplify Endoscopic Retrograde Cholangiopancreatography in Surgically Altered Anatomy.

Patients with surgically altered gastrointestinal anatomy are susceptible to gallstone disease and anastomotic strictures. In such cases, enteroscopy-assisted endoscopic retrograde cholangiopancreatography (ERCP) is traditionally used to access the biliary system through the Roux limb, with suboptimal success rates. With the advent of endoscopic ultrasound (EUS) and therapeutic tools including lumen-apposing metal stents, access to the biliary system in surgically altered anatomy has been made simpler. We report a case of EUS-guided transenteric ERCP done in a patient with surgically altered anatomy and a rescue technique for difficult gastrojejunal anastomosis creation.

Safety and outcomes of endoscopic ultrasound-guided drainage for malignant biliary obstruction using cautery-enabled lumen-apposing metal stent.

Background and study aims There is increasing evidence to suggest that EUS-guided biliary drainage (EUS-BD) is a safe and effective treatment alternative for patients with malignant biliary obstructions (MBOs) after failed endoscopic retrograde cholangiopancreatography. Patients and methods We performed a retrospective analysis of data prospectively collected from patients with MBO who underwent choledochoduodenostomy (CDS) or gallbladder drainage (GBD) between August 2016 and June 2020 using the electrocautery-enabled lumen-apposing metal stents (ECE-LAMS). The primary endpoint was technical and clinical success. Secondary endpoints were adverse events (AEs) and reinterventions. Results A total of 60 patients were included in the study, with 56 CDS and 4 GBD. Median age was 76 years with 57 % male (34/60). The most common indication for EUS-BD was pancreatic cancer (78 %). Technical success was achieved in 100 % of cases, with a clinical success rate of 91.7 %. Mean total bilirubin pre-procedure was 202 umol/L (normal < 20 umol/L) and 63.8 umol/L post procedure ( P  < .001). Twenty-one patients had bilirubin recorded at 2 weeks post EUS-BD with 20 of 21 patients demonstrating > 50 % reduction in bilirubin (mean bilirubin reduction 75 %). AEs occurred in 12 of 60 patients (20 %), all of which were mild. The reintervention rate was 11.7 % (7/60). Stent occlusion occurred in 10 of 60 patients (16.7 %) with a mean time to stent occlusion of 46.2 days (3-133). Stent patency of 83.3 % was observed with a mean follow up of 7.9 months. Conclusion EUS-CDS and GBD using ECE-LAMS are effective EUS-based techniques for managing patients with MBO. AEs are usually mild and resolved by reintervention.

Video or verbal? A randomised trial of the informed consent process prior to endoscopy.

AIM: Informed consent (IC) prior to endoscopy is often inconsistently and poorly performed. We compared use of video-assisted consent to standard verbal consent for enhancing patients' recollection of procedural risks, understanding and fulfilment of expectation. METHOD: Two hundred patients attending for gastroscopy or colonoscopy were randomised to either video-assisted consent (n=100) or verbal consent (n=100). The primary outcomes measured via a questionnaire were the recollection of procedural risks (sum of all correct answers for risk recall items) and patient experience compared to information provided in the consent process. Secondary outcomes included reported patient understanding and staff satisfaction between groups. RESULTS: There was no difference between video or verbal groups in terms of risk recall scores (p=0.46), with less than half the patients able to recall more than two risks. There was a signal towards improved recall of bleeding as a potential risk in the video as compared to the verbal arm but it did not reach statistical significance (p=0.059). Patients' perceived understanding and fulfilment of expectation was high (>96%) in both groups. Seventy-one percent of the staff preferred using the video over the verbal IC. CONCLUSION: Video-assisted consent made no significant difference to the IC process in terms of patient recollection or experience compared to usual verbal IC. Despite very poor recollection of procedural risks, patients in both the video and verbal groups reported understanding of the procedure and satisfaction with the IC process. Reasons for this mismatch are unclear. Further action to prioritise information delivery during IC is required. Future studies in this field should include patient-centred outcomes as a measure of success.