A prospective randomized study of colonoscopy using blue laser imaging and white light imaging in detection and differentiation of colonic polyps.

 Published data on blue laser imaging (BLI) for detection and differentiation of colonic polyps are limited compared to narrow band imaging (NBI). This study investigated whether BLI can increase the detection rate of colonic polyps and adenomas when compared to white light imaging (WLI), and examined use of NICE (NBI International Colorectal Endoscopic) and JNET (Japan NBI Expert Team) classifications with BLI.  Patients aged 50 years and above referred for colonoscopy were randomized to BLI or WLI on withdrawal.

Management of Percutaneous Endoscopic Gastrostomy Site Gastric Ulcer in a Patient with an Esophageal Stricture and Hiatus Hernia.

Percutaneous endoscopic gastrostomy (PEG) is commonly performed for feeding difficulties, in patients suffering from complications of nasopharyngeal carcinoma and its treatment, namely radiotherapy and surgery. This case report describes the challenges in hemostasis and subsequent re-establishment of enteral access for feeding, in an elderly patient with a history of NPC, treated surgically, followed by radiotherapy, who presented with massive hematemesis following reinsertion of her PEG shortly after an accidental dislodgement. Her previous nasopharyngectomy, wide field radiation therapy, and radical neck dissection precluded nasogastric tube feeding, and the presence of a large hiatus hernia made reinsertion of a new PEG technically challenging.

Efficacy of small-volume simethicone given at least 30 min before gastroscopy.

Aim: To evaluate the efficacy of 5 mL simethicone solution in decreasing gastric foam if given at least 30 min before gastroscopy.

Methods: This was a randomized, placebo controlled, endoscopist blinded study performed at Changi General Hospital. Patients were at least 21 years old, had no prior surgical resection of the upper gastrointestinal tract, and scheduled for elective diagnostic gastroscopies.

A multicenter randomized comparison between high-definition white light endoscopy and narrow band imaging for detection of gastric lesions.

Objective: Narrow band imaging (NBI) is generally considered to be useful for lesion characterization, but not enhanced detection of gastric lesions, because of the dark endoscopic view. We tested whether the new generation of NBI (190-NBI or 290-NBI), which is twice as bright as the previous version, would improve detection of premalignant gastric lesions compared with high-definition white light endoscopy (HD-WLE).

Patients And Methods: This was a multicenter prospective randomized study involving five tertiary institutions in the Asia-Pacific region.