Risk of sedation for diagnostic esophagogastroduodenoscopy in obstructive sleep apnea patients.

Aim: To investigate whether patients with obstructive sleep apnea (OSA) are at risk of sedation-related complications during diagnostic esophagogastroduodenoscopy (EGD).

Methods: A prospective study was performed in consecutive patients with OSA, who were confirmed with full-night polysomnography between July 2010 and April 2011. The occurrence of cardiopulmonary complications related to sedation during diagnostic EGD was compared between OSA and control groups.

The risk of postpolypectomy bleeding during colonoscopy in patients with early liver cirrhosis.

Background: Colonoscopists are often hesitant to perform endoscopic polypectomy in patients with liver cirrhosis (LC) because of the risk for postpolypectomy bleeding (PPB). However, little is known about the risk of PPB in these patients.

Methods: We performed a retrospective study of patients with early LC who underwent colonoscopic polypectomy at a single center between September 2006 and May 2011.

The prognostic factors of pancreatic cancer can be different according to clinical stages.

Background/aims: The prognosis of patients with pancreatic cancer remains very poor. Although many studies have evaluated the prognostic factors of pancreatic cancer, their results are inconclusive because of different inclusion criteria, tumor stages, and treatment modalities. This large scale retrospective analysis was performed to assess whether active treatment of pancreatic cancer, even in its advanced stage, could improve patients' survival.