Colorectal polyps in ulcerative colitis and Crohn's colitis

Area of Science:

• Gastroenterology
• Endoscopy
• Oncology

Background:

• Patients with long-standing inflammatory bowel disease (IBD) face an elevated risk of dysplasia and colorectal cancer.
• Standard white-light endoscopy often struggles to detect subtle, flat colonic lesions in IBD patients.
• Surveillance colonoscopy is crucial for early detection and management.

Purpose of the Study:

• To review novel electronic optical enhancement techniques for improving endoscopic diagnosis of dysplasia in IBD.
• To explore emerging strategies for the therapeutic management of dysplasia in IBD.
• To assess the potential of advanced endoscopic tools in IBD surveillance.

Main Methods:

• Systematic electronic search of PubMed, MEDLINE, and EMBASE (1980-2015).
• Inclusion of keywords: dysplasia, colorectal cancer, IBD, surveillance, novel endoscopic techniques, chromoendoscopy, confocal laser endomicroscopy.
• Review of articles focusing on diagnostic and therapeutic endoscopic strategies for IBD-associated dysplasia.

Main Results:

• Chromoendoscopy and high-definition endoscopy with electronic filters enhance mucosal and vascular pattern visualization.
• Confocal laser endomicroscopy (CLE) enables real-time histological assessment and accurate prediction of dysplastic changes.
• The SCENIC consensus guidelines were updated to incorporate best practices for dysplasia detection and management in IBD.

Conclusions:

• Optical enhancement endoscopic techniques show significant promise for surveillance colonoscopy in IBD patients.
• These techniques facilitate targeted biopsies for better assessment and management of dysplastic lesions.
• Further research is needed to establish optimal diagnostic and treatment strategies for dysplasia in IBD.