Warfarin use and the risk of mortality, stroke, and bleeding in hemodialysis patients with atrial fibrillation.

Background: The optimal management of stroke prophylaxis in hemodialysis patients with atrial fibrillation is controversial.

Objective: The purpose of this study was to determine the risk of mortality, stroke, and bleeding associated with the use of warfarin in hemodialysis patients with atrial fibrillation.

Methods: This was a retrospective, population-based study of hemodialysis patients with atrial fibrillation between January 1, 2006, and September 30, 2015.

The effect of stem design on the prevalence of squeaking following ceramic-on-ceramic bearing total hip arthroplasty.

Background: The ceramic-on-ceramic bearing for total hip arthroplasty has an extremely low wear rate and demonstrates minimal inflammatory response in comparison with other bearing choices. However, acoustic emissions such as squeaking and clicking are being reported as annoying complications related to its use. The cause or causes of this phenomenon have not been determined.