Clinical significance of intraperitoneal air on computed tomography scan after endoscopic submucosal dissection in patients with gastric neoplasms

Improved outcomes of endoscopic treatment for delayed perforation following endoscopic submucosal dissection for gastric epithelial neoplasms

Background and study aims

Emergency surgery is usually required for patients with delayed perforation after gastric endoscopic submucosal dissection (ESD); however, cases of successful endoscopic treatment recently have been reported. Here, we elucidated the usefulness of endoscopic intervention for patients with delayed perforation.

Patients and methods

Patients who underwent gastric ESD from 2005 to 2022 were assessed for eligibility. Delayed perforation was defined as no intraprocedural perforation after the ESD but subsequent development of peritoneal irritation and free air on computed tomography scan. Participants were divided into early- and late-period groups based on time (October 2015) of implementation of the polyglycolic acid (PGA) sheet and the over-the-scope clip (OTSC) in clinical practice. We evaluated changes in incidence of required surgery.

Results

Among the 5,048 patients who underwent gastric ESD, delayed perforation occurred in 28 patients (0.6%, 95% confidence interval [CI] 0.4%-0.8%). Incidence of delayed perforation did not differ significantly between the early- and late-period groups (0.5% vs. 0.6%). The proportion of patients who underwent surgery was significantly smaller in the late-period group than in the early-period group (54% vs. 13%, odds ratio [OR] 0.14, 95% CI 0.02-0.83; P = 0.042); this was confirmed by multivariate analysis (adjusted OR 0.04, 95% CI 0.002-0.9; P = 0.043) after adjustment for age, sex, Charlson's comorbidity index, tumor location, and size.

Conclusions

Endoscopic intervention using PGA sheets and OTSC was associated with a low incidence of required surgery for delayed perforation after gastric ESD and is recommended.

Microperforation after colonic endoscopic submucosal dissection, air in 5 separate locations

Endoscopic submucosal dissection (ESD) and endoscopic mucosal dissection (EMD) are recognized treatment procedures for mucosal lesions. There will always be a risk for complications even if they are performed by experienced specialists. In this study, we aimed to present a 58-year-old male patient in whom lesion was detected in the proximal part of the descending colon during a colonoscopy. Histopathological examination of the lesion revealed intramucosal carcinoma. The lesion was removed by ESD but after the intervention, bilateral pneumothoraxes, pneumoperitoneum, pneumoretroperitoneum, pneumomediastinum and pneumoderma complications observed. It is quite unlikely to encounter all of these complications together in one patient. In this paper, we would like to highlight the potential for complications after ESD, even for the rare and unexpected ones, to contribute to their recognition and treatment.

A Rare Case of Delayed Perigastric Abscess after Curative Resection of Early Gastric Cancer by Uncomplicated Endoscopic Submucosal Dissection: Successful Treatment with Endoscopic Ultrasound-guided Drainage

A 72-year-old man had undergone uncomplicated endoscopic submucosal dissection (ESD) with en bloc resection of a localized 20-mm IIc lesion in the anterior wall of the gastric angle. Twenty-eight days later, he was re-admitted with epigastric pain of one-week duration. Contrast-enhanced computed tomography (CT) revealed a 60-mm mass bordered by viscera; repeat endoscopy confirmed a smooth elevated submucosal tumor at the greater curvature on the oral side of the post-ESD ulcer. We diagnosed him with a perigastric abscess as a complication of ESD and performed endoscopic ultrasound-guided drainage. Subsequently, the symptoms and blood inflammatory parameters improved, and follow-up CT showed the disappearance of the abscess.

Complications of endoscopic resection techniques for upper GI tract lesions

Adverse events can occur during and after the endoscopic resection of upper gastrointestinal lesions. Their incidence can be minimized through the adoption of preventive measures and their final outcomes can be optimized through prompt identification and adequate treatment. In this evidence-based review we describe the risk factors for adverse events, preventive measures to avoid them and their management when they occur. Algorithms of action are also provided. Oesophageal strictures can be prevented with corticosteroids (either locally injected or systemically administered) and treated with endoscopic dilatation. Bleeding can be minimized through the adoption of prophylactic coagulation and novel preventive measures are emerging and being evaluated. Bleeding management includes coagulation therapy, clips and haemostatic powders. Perforations can nowadays be successfully treated endoscopically in the majority of the cases and conservative treatment is associated with favourable outcomes although optimal management is unclear.

Perigastric Abscess as a Complication of Endoscopic Submucosal Dissection for Early Gastric Cancer: First Case Report

Endoscopic submucosal dissection (ESD) for early gastric cancer (EGC) is a widely accepted and well established procedure because of its curative potential and low invasiveness compared with surgery. Perforation is a potential major complication during ESD, and non-surgical treatments such as endoscopic closure with clips are sufficient in most cases. Here, we report a case of perigastric abscess that occurred as a complication of ESD for EGC. The patient improved with administration of antibiotics without surgical intervention.