Multicenter cohort study of patients with buried bumper syndrome treated endoscopically with a novel, dedicated device.

BACKGROUND AND AIMS: Buried bumper syndrome (BBS) is a rare adverse event of percutaneous endoscopic gastrostomy (PEG) placement in which the internal bumper migrates through the stomal tract to become embedded within the gastric wall. Excessive tension between the internal and external bumpers, causing ischemic necrosis of the gastric wall, is believed to be the main etiologic factor. Several techniques for endoscopic management of BBS have been described using off-label devices. The Flamingo set is a novel, sphincterotome-like device specifically designed for BBS management. We aimed to evaluate the effectiveness of the Flamingo device in a large, homogeneous cohort of patients with BBS. METHODS: A guidewire was inserted through the external access of the PEG tube into the gastric lumen. The Flamingo device was then introduced into the stomach over the guidewire. This dedicated tool can be flexed by 180 degrees, exposing a sphincterotome-like cutting wire, which is used to incise the overgrown tissue until the PEG bumper is exposed. A retrospective, international, multicenter cohort study was conducted on 54 patients between December 2016 and February 2019. RESULTS: The buried bumper was successfully removed in 53 of 55 procedures (96.4%). The median time for the endoscopic removal of the buried bumper was 22 minutes (range, 5-60). Periprocedural endoscopic adverse events occurred in 7 procedures (12.7%) and were successfully managed endoscopically. A median follow-up of 150 days (range, 33-593) was performed in 29 patients (52.7%), during which no significant adverse events occurred. CONCLUSIONS: Through our experience, we found this dedicated novel device to be safe, quick, and effective for minimally invasive, endoscopic management of BBS.

Therapeutic resolution of focal, predominantly anastomotic Crohn's disease strictures using removable stents: outcomes from a single-center case series in the United Kingdom.

BACKGROUND AND AIMS: Intestinal and anastomotic strictures in Crohn's disease (CD) produce considerable morbidity. The development of surgery-sparing, endoscopic modalities for stricture resolution is essential. Removable stent therapy is emerging as an efficacious and safe means of stricture resolution. We present outcomes from the largest, single-center series of patients with CD undergoing removable self-expanding metal stent (SEMS) therapy to resolve focal intestinal strictures. METHODS: Patients with symptomatic CD were assessed with magnetic resonance enterography. Short (≤6 cm), fibrostenotic strictures of the terminal ileum or ileocolonic anastomoses were considered by a multidisciplinary team and put forward for stent therapy. Strictures were examined endoscopically and impassable strictures were treated with SEMSs. The Hanaro HRC-20-080-230 partially covered SEMS was used for all patients. Endoscopically inaccessible or inflammatory strictures were excluded. Stent retrieval was scheduled for 7 days after insertion. Therapeutic benefit was assessed with validated inflammatory bowel disease scoring tools. RESULTS: Twenty-one patients underwent 23 stent episodes, with 2 patients requiring repeat therapy in the follow-up period. Most treated strictures were anastomotic (19 of 21); 2 of 21 were de novo. Of those patients attending follow-up, 81% (13 of 16) reported symptom improvement or resolution; 88% (14 of 16) were in clinical remission at follow-up. Across all stent episodes, only 5 adverse events were noted (2 episodes of stent-related discomfort, 3 asymptomatic stent migrations). There were no direct stent-related adverse events such as perforation, impaction, or bleeding. No patient has required stricture-related surgery in the follow-up period (range, 3-50 months). CONCLUSIONS: In this series, removable SEMS therapy for ileal and anastomotic strictures was found to be clinically efficacious. The absence of perforation events and need for stricture-related surgery are noteworthy. These results suggest that the efficacy of stent therapy in this context merits powered, head-to-head investigation with other modalities for stricture resolution.

Glucocorticoid resistance - what is known?

It has become apparent in recent years that the glucocorticoid receptor is not a simple on/off switch, but instead orchestrates subtle and complex interactions between large numbers of proteins. This more sophisticated understanding awaits a unifying concept that will explain mechanisms of glucocorticoid resistance and allow new approaches to enhancing sensitivity.

Outbreak of hepatitis A in the injecting drug user and homeless populations in Bristol: control by a targeted vaccination programme and possible parenteral transmission.

OBJECTIVE: To study the use of hepatitis A virus (HAV) vaccination in controlling an outbreak of HAV in inner-city Bristol among injecting drug users (IDUs). To study whether hepatitis C virus (HCV) and hepatitis B virus (HBV) co-infection increases morbidity. DESIGN: Community-based cohort study. SETTING: Avon Health Authority area, UK. PARTICIPANTS: All laboratory-confirmed cases of HAV infection notified in 2000. INTERVENTION: Administration of a targeted vaccination, education and liaison programme. MAIN OUTCOME MEASURES: Number of cases of HAV before and after introduction of HAV vaccination programme. Mortality and number of patients requiring hospital admission. Association of HCV and HBV co-infection with hospital admission. RESULTS: Ninety cases of HAV were reported in the first 6 months of 2000, of whom a substantial number were IDUs and/or inner-city hostel residents. In the second 6 months of 2000, following the introduction of a vaccination programme among homeless people, hostel residents, and IDUs, the number of HAV cases fell to 33. Sixteen patients had evidence of HCV co-infection. No patient had chronic HBV infection. Two patients died as a result of HAV, and two subsequently died from drug misuse. Fifty-six per cent of HCV-co-infected patients required admission to hospital compared with 28% non-HCV-co-infected patients. CONCLUSIONS: This is the first reported successful use of vaccination to control an outbreak of HAV in a population of IDUs and to prevent transmission to the wider population. HCV co-infection appears to increase the severity of HAV illness, as demonstrated by increased incidence of hospital admission.

Unsedated percutaneous endoscopic gastrostomy insertion: a safe, effective, and well-tolerated method.

BACKGROUND: Percutaneous endoscopic gastrostomy (PEG) tube insertion is an uncomfortable procedure that has traditionally required sedation. In some patients, PEG tube insertion can be postponed or is not possible due to the risk of sedation. This article is a retrospective case series of 10 patients who have undergone unsedated peroral PEG tube insertion in the past 4 years at Stafford Hospital in the United Kingdom. METHODS: Between 2006 and 2010, 10 patients who were identified by the nutrition team as needing a PEG tube underwent unsedated peroral PEG tube insertion. Patients were given pharyngeal anesthesia (lidocaine 1%), and the PEG tubes were inserted using the push-pull technique and local anesthesia. The procedures were performed without complications. RESULTS: Those patients who were able to respond stated they would be willing to have the procedure performed again using this method. It was acceptable to them and not as unpleasant as they had expected. CONCLUSIONS: This case series demonstrates that gastroenterology units without specialized equipment are able to safely insert PEGs in patients who are at increased risk for intravenous sedation.