Increased Detection of Colorectal Polyps in Screening Colonoscopy Using High Definition i-SCAN Compared with Standard White Light

BACKGROUND/AIMS: The aim of this study was to evaluate the efficacy of high definition (HD) i-SCAN for colorectal polyp detection in screening colonoscopy. METHODS: We retrospectively analyzed the records of 501 patients who had undergone screening colonoscopy performed by three endoscopists with either HD i-SCAN (n=149) or standard white light (n=352) from January 2, 2014 through June 30, 2014. Patient information and inter-endoscopist variation as well as polyp number, endoscopic findings, and pathologic characteristics were reviewed. RESULTS: The detection rates of colorectal and neoplastic polyps were significantly higher using HD i-SCAN than standard white light colonoscopy (52% vs. 38.1%, p=0.004 for colorectal polyps; and 37.2% vs. 27.9%, p=0.041 for neoplastic polyps). Analysis of endoscopic findings revealed no difference in detected polyp size between HD i-SCAN and standard white light colonoscopy (4.59+/-2.35 mm vs. 4.82+/-2.81 mm, p=0.739), but non-protruding polyps were more commonly detected by i-SCAN than by standard white light colonoscopy (24.6% vs. 13.5%, p=0.007). CONCLUSIONS: Colonoscopy using HD i-SCAN had a significantly higher detection rate of colorectal polyps, including neoplastic polyps, because of improved sensitivity for detecting non-protruding lesions.

Hypereosinophilic Syndrome Presenting as Intussusception in Adults / 대한내과학회지

Hypereosinophilic syndrome (HES) is characterized by persistent eosinophilia associated with damage to multiple organs. Although the diagnostic criteria for HES include sustained hypereosinophilia for at least 6 months, early initiation of therapy may be recommended in patients exhibiting HES symptoms. Eosinophilic enteritis has been reported as a cause of intussusception in several cases. However, HES as a cause of intussusception has not yet been reported. In the present report, we describe a case of HES that manifested as jejunojejunal intussusception. Although long-standing hypereosinophilia was not confirmed, the patient required eosinophil-lowering therapy for an intestinal obstruction. The patient was treated with systemic corticosteroids, after which the symptoms and multiple organ involvement, including intussusception, improved dramatically, as noted on the radiological investigation. Moreover, surgery was not necessary.

Hypereosinophilic Syndrome Presenting as Intussusception in Adults / 대한내과학회지

Hypereosinophilic syndrome (HES) is characterized by persistent eosinophilia associated with damage to multiple organs. Although the diagnostic criteria for HES include sustained hypereosinophilia for at least 6 months, early initiation of therapy may be recommended in patients exhibiting HES symptoms. Eosinophilic enteritis has been reported as a cause of intussusception in several cases. However, HES as a cause of intussusception has not yet been reported. In the present report, we describe a case of HES that manifested as jejunojejunal intussusception. Although long-standing hypereosinophilia was not confirmed, the patient required eosinophil-lowering therapy for an intestinal obstruction. The patient was treated with systemic corticosteroids, after which the symptoms and multiple organ involvement, including intussusception, improved dramatically, as noted on the radiological investigation. Moreover, surgery was not necessary.