Gastric endoscopic submucosal dissection is safe for day patients

Pathology and Clinical Relevance of Gastric Epithelial Dysplasia

Gastric dysplasia is defined as an unequivocally neoplastic epithelium. Dysplastic lesions are characterized by cellular atypia reflective of abnormal differentiation and disorganized glandular architecture. The last few years have been marked by a refinement of the prognosis and risk of progression of gastric dysplasia and the recognition of novel morphologic patterns of dysplasia. Determination of the correct diagnosis and grade of dysplasia are critical steps since it will be predicting the risk of malignant transformation and help tailor appropriate surveillance strategy. This review describes the morphologic characteristics of conventional dysplasia and nonconventional gastric dysplasia that have been more recently characterized.

Outpatient hybrid endoscopic submucosal dissection with SOUTEN for early gastric cancer, followed by endoscopic suturing of the mucosal defect: A case report

BACKGROUND

Although endoscopic submucosal dissection (ESD) is becoming more common for early gastric cancer, it requires more advanced techniques and a longer treatment duration than endoscopic mucosal resection. Hybrid ESD using a multifunctional snare (SOUTEN) has been reported to be effective for colorectal lesions, as it can reduce treatment duration. Endoscopic suturing of post-ESD mucosal defects has been reported to reduce the incidence of ESD-related complications.

CASE SUMMARY

This study reports outpatient hybrid ESD for early gastric cancer using SOUTEN, followed by endoscopic suturing of post-ESD mucosal defects in an 86-year-old man. On referral for ESD, a 10-mm flat, depressed lesion was found on the posterior wall of the gastric antrum, the depth of which was expected to be mucosal. Given his history of delirium, we performed outpatient endoscopic treatment. The procedure used was hybrid ESD using SOUTEN to reduce the duration of treatment and endoscopic suturing of post-ESD mucosal ESD defects to reduce complications. The procedure time was 62 min and the lesion was completely resected based on histopathological examination, with no reported postoperative complications.

CONCLUSION

This safe and useful procedure may be especially important for outpatient endoscopic treatment.

Endoscopic submucosal dissection of gastrointestinal lesions on an outpatient basis

Background

Endoscopic submucosal dissection (ESD) is usually associated with hospital admission.

Objectives

To evaluate, prospectively, the feasibility, safety and efficacy of outpatient gastrointestinal ESD.

Methods

Patients with suitable lesions were invited to participate. Those that dwelt more than 1 hour from the hospital, lived alone, had severe co-morbidities, were <18 years old, had duodenal lesions, or that had ESD-related complications were admitted. The remaining patients were discharged if no complications were detected. A patients' inquiry was performed.

Results

Of the 164 ESD patients, 122 were outpatient-based, corresponding to 115 patients, 47% male and mean age 63 ± 12 years-old. Outpatients tended to be younger, female, to have gastric lesions, less advanced lesions, and shorter and less complicated ESDs (all p < 0.05). Outpatients' mean tumour size was 38 mm, en bloc and R0 resection rates were 88 and 78%, respectively. Seven ESD outpatients (5.7%) had complications: delayed bleeding (n = 4), pneumonitis (n = 2) or emphysema (n = 1), all managed conservatively. Colorectal location of the lesions was predictive of hospital admission (p = 0.03). In total, 97% of patients were satisfied with the outpatient strategy.

Conclusion

Risks of ambulatory ESD are low and complications can be successfully managed. This strategy has high patient satisfaction. More studies are needed to evaluate its implications on costs and patients' management.

Risk factors for bleeding after gastric endoscopic submucosal dissection: a systematic review and meta-analysis

BACKGROUND AND AIMS

Postprocedural bleeding (PPB) is the most common adverse event associated with endoscopic resection. Several studies have tried to identify risk factors for PPB after gastric EMR and endoscopic submucosal dissection (ESD), with controversial results. This systematic review and meta-analysis aimed to identify significant risk factors for PPB after gastric EMR and ESD.

METHODS

Three online databases were searched. Pooled odds ratio (OR) was computed for each risk factor using a random-effects model, and heterogeneity was assessed by Cochran's Q test and I(2).

RESULTS

Seventy-four articles were included. Pooled PPB rate was 5.1% (95% confidence interval, 4.5%-5.7%), which did not vary according to different study designs. Male sex (OR, 1.25), cardiopathy (OR, 1.54), antithrombotic drugs (OR, 1.63), cirrhosis (OR, 1.76), chronic kidney disease (OR, 3.38), tumor size > 20 mm (OR, 2.70), resected specimen size > 30 mm (OR, 2.85), localization in the lesser curvature (OR, 1.74), flat/depressed morphology (OR, 1.43), carcinoma histology (OR, 1.46), and ulceration (OR, 1.64) were identified as significant risk factors for PPB, whereas age, hypertension, submucosal invasion, fibrosis, and localization (upper, middle, or lower third) were not. Procedure duration > 60 minutes (OR, 2.05) and the use of histamine-2 receptor antagonists instead of proton pump inhibitors (OR, 2.13) were the procedural factors associated with PPB, whereas endoscopist experience and preprocedural proton pump inhibitors were not. Second-look endoscopy was not associated with decreased PPB (OR, 1.34; 95% confidence interval, .85-2.12).

CONCLUSIONS

Risk factors for PPB were identified that can help to guide management after gastric ESD, namely adjusting further management. Second-look endoscopy is not associated with decreased PPB.