Rol de la cromoendoscopía en el manejo de los pólipos colorrectales. / [Role of chromoendoscopy in colorectal polyps handling]

ABSTRACT

INTRODUCTION AND AIM: Endoscopic polipectomy and its further histopathologic study are current gold standard in diagnosis of colorectal polyps is. It was proposed that colonoscopy with high resolution videoendoscopes with or without magnification combined with indigo carmin dye (ICD) could distinguish between adenomatous and nonadenomatous polyps according to their pit pattern. The aim of this study was to establish sensitivity and specificity of chromoendoscopy with ICD using conventional videoendoscopes and fiber-endoscopes with videocamera, to make a differential diagnosis of polyp histology and their possible role in colon cancer screening. PATIENTS AND METHODS: Step 1 Using previous trial data, the first 20 polyps < = 1 cm was retrospectively correlated with their known histology to determine the pit pattern of each histologic type; this data was used in the step 2 patients. Step 2 46 patients with colorectal polyps were enrolled in this prospective study. Polyps were sprayed with 0.4