Minimally invasive aortic valve replacement using right minithoracotomy is associated with better outcomes than ministernotomy.

Objective: To compare the outcomes of right minithoracotomy (RT) versus ministernotomy (MS) in patients undergoing minimally invasive aortic valve replacement (AVR).

Methods: From January 2005 to December 2011, 406 patients underwent minimally invasive AVR, of whom 251 patients were in the RT group and 155 were in the MS group.

Results: The overall in-hospital mortality was 1.

The continued development of the Spallation Neutron Source external antenna H- ion source.

The U.S. Spallation Neutron Source (SNS) is an accelerator-based, pulsed neutron-scattering facility, currently in the process of ramping up neutron production.