胶囊内镜全小肠检查的研究进展

Application of balloon-assisted endoscopy in treatment of small intestinal diseases

For its special physiological structure, the small intestine had been regarded as an area inaccessible by digestive endoscopy for the detection and therapy. Recently, the clinical application of balloon-assisted endoscopy (BAE) help realize the direct observation and endoscopic therapy for the total small intestine, which greatly improves the diagnosis and treatment of small intestinal diseases. In the current editorial, we provide several typical cases and give an overview of the application of BAE in the therapy of small intestinal diseases, which includes polypectomy for small intestinal polyps, dilatation and stenting for small intestinal strictures, endoscopic therapy for small intestinal bleeding and BAE assisted endoscopic retrograde cholangiopancreatography (ERCP).

Diagnostic value of CT virtual endoscopy in small bowel disease

AIM: To explore the diagnostic value of computed tomography (CT) virtual endoscopy in small bowel disease.

METHODS: Eighty-four patients with small bowel disease were divided into either an observation group or a control group. The observation group underwent CT virtual endoscopy, and the control group underwent double contrast imaging of the small intestine. The filling effect, sensitivity, specificity, and the rate of misdiagnosis were compared for the two groups.

RESULTS: The filling effect for the observation group was higher than that for the control group (66.67% vs 40.48%, P < 0.05). The diagnostic sensitivity and specificity for the observation group were higher than those for the control group (95.24% vs 59.52%, 90.48% vs 47.62%, P < 0.05). The rate of misdiagnosis for the observation group was lower than that for the control group (0.00% vs 26.19%, P < 0.05).

CONCLUSION: The diagnostic value of CT virtual endoscopy in the detection of small bowel disease is good, and it is simple, safe and has good filling effect, high sensitivity and specificity.

Diagnostic value of balloon-assisted endoscopy and capsule endoscopy in emergency obscure gastrointestinal bleeding

AIM: To compare the diagnostic value of balloon-assisted endoscopy (BAE) and capsule endoscopy (CE) in emergency obscure gastrointestinal bleeding (OGIB).

METHODS: Thirty-four patients with emergency OGIB treated at our hospital from July 2011 to May 2014 were included in this study. Ten cases underwent CE examination before BAE examination, and 34 cases underwent BAE in 72 h after diagnosis.

RESULTS: The detection rate of emergency OGIB by CE was 30% (3/10), among which one case was diagnosed as small intestinal diverticulum, and two cases as stromal tumors. Of the other seven cases which were negative in CE examination, four were small intestinal diverticulum, two were vascular disease and one was small intestine anastomotic ulcer. The detection rate of emergency OGIB by BAE was 88.23% (30/34), among which the numbers of cases of small intestinal diverticulum, stromal tumor, vascular disease, small intestine anastomotic ulcer and intestine ulcer were 16, 4, 4, 4 and 2, respectively. The detection rate of emergency OGIB by BAE was significantly higher than that by CE (88.23% vs 30.00%, P < 0.05).

CONCLUSION: The diagnostic accuracy of BAE for emergency OGIB is higher than that of CE. BAE is safe and effective in the diagnosis of emergency OGIB.

Gastric examination with a magnetically guided capsule endoscope: An analysis of 55 volunteers

AIM: To investigate the feasibility of conducting gastric examination with a magnetically guided capsule endoscope.

METHODS: Fifty-five volunteers who underwent gastric examination with a magnetically guided capsule endoscope were included in this study. All participants swallowed the capsule endoscope, which was controlled by an external magnetic field control device to reach various sites of the esophagus and stomach.

RESULTS: Fifty-four volunteers completed the endoscopic procedure, and the mean operating time was 24.5 ± 5.5 min. One volunteer prematurely ended the examination because his gastric emptying was too fast and the capsule endoscope entered into the duodenum in five minutes. Of all the 55 volunteers, 45 were diagnosed with superficial gastritis, 3 with superficial gastritis with bile reflux, 1 with gastric antral tumor, and 4 showed no abnormality. All volunteers had no discomfort in the examination process.

CONCLUSION: Magnetically guided capsule endoscopy is effective and safe in conducting gastric examination.