Nikos Viazis

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OBJECTIVES:The removal of large bile duct stones (>12 mm) after endoscopic sphincterotomy (EST) remains a challenging issue in therapeutic endoscopy. The aim of this prospective, randomized, controlled trial was to compare the effectiveness and complications of EST followed by large balloon dilation (LBD) with that of EST followed by mechanical lithotripsy(More)
BACKGROUND The aim of this study was to determine the value of small-bowel preparation for patients undergoing capsule endoscopy. METHODS The study design was prospective, randomized, and controlled. Eighty patients referred for capsule endoscopy were randomized into two equal groups. Patients in Group A (mean age 54.40 [15.65] years) ingested 2 L of a(More)
BACKGROUND Endotoxaemia is commonly seen in cirrhotic patients with ascites and this may be associated with increased portal pressure. AIM To investigate the effect of intestinal decontamination on liver haemodynamics in alcohol-related cirrhotic patients with ascites. METHODS We included 30 patients. At day 0, systemic and splanchnic circulation(More)
BACKGROUND AND AIM Cirrhotic patients are predisposed to intestinal bacterial overgrowth with translocation of bacterial products which may deteriorate liver hemodynamics. Having shown that short-term administration of rifaximin improves liver hemodynamics in decompensated cirrhosis, we conducted this study to investigate the effect of intestinal(More)
BACKGROUND There are no studies assessing mucosal healing of the small bowel in patients with Crohn's disease (CD). Our aim was to assess the correlation between clinical response and mucosal healing of the small bowel using wireless capsule endoscopy (WCE). METHODS This was a prospective, multicenter, case-series study. Forty patients with known or(More)
AIM During endoscopic retrograde cholangiopanc-reatography (ERCP), selective cannulation of the common bile duct (CBD) is required in most of the cases. METHODS From June 2001 till December 2002, all patients referred to our unit for ERCP were considered for entry into the study. Selective CBD cannulation was first attempted with a standard catheter with(More)
AIM To determine the efficacy of infliximab in the treatment of chronic refractory pouchitis, following ileo-pouch anal anastomosis (IPAA) for ulcerative colitis (UC). METHODS Seven patients (4 females, 3 males) with chronic refractory pouchitis were included in an open study. Pouchitis was diagnosed by clinical plus endoscopic and histological criteria.(More)
BACKGROUND Human immunodeficiency virus (HIV) infection depletes CD4+ lymphocytes, which may benefit patients with inflammatory bowel disease (IBD). The aim was to compare the course of IBD in HIV patients with a matched group of IBD seronegative patients. METHODS A total of 20 IBD (14 Crohn's disease, 6 ulcerative colitis) HIV infected patients and 40(More)
BACKGROUND AND AIM We evaluated the effect of infection on the short- and long-term outcome of cirrhotic patients with upper gastrointestinal bleeding (UGIB), in a series of patients not submitted to antibiotic prophylaxis. METHODS The cirrhotic patients hospitalized for UGIB were prospectively followed up until the last visit, death, or transplantation.(More)
OBJECTIVES A high proportion of Crohn's disease (CD) patients lose response to antitumor necrosis factor (anti-TNF) and therapy needs to be intensified. We aimed to prospectively determine the predictors and frequency of anti-TNF loss of response and therefore the need for dose escalation and de-escalation in CD patients treated with infliximab or(More)