Comparison of two schemes of small bowel preparation for capsule endoscopy with polyethylene glycol: a prospective, randomized single-blind study.

Objective: Small bowel preparation for capsule endoscopy remains controversial. This study was conducted to compare the efficacy of 2 and 4 l of polyethylene glycol.

Methods: One hundred and one patients (group A) received 2 l and 100 (group B) received 4 l in a prospective, randomized single-blind trial.

Endoscopic variceal ligation vs. propranolol for prevention of first variceal bleeding: a randomized controlled trial.

Objectives: Data in the literature regarding the role of endoscopic variceal ligation for the prevention of first variceal bleeding in cirrhotic patients are controversial. To further explore this issue we have compared ligation and propranolol treatment in a prospective randomized study.

Methods: Sixty patients with cirrhosis and oesophageal varices with no history but at high risk of bleeding were randomized to ligation treatment (30 patients) or propranolol (30 patients).