Factors associated with early recurrence and death after esophagectomy for cancer.

Background: Accurate selection of patients for radical treatment of esophageal cancer is essential to avoid early recurrence and death (ERD) after surgery. We sought to evaluate a large series of consecutive resections to assess factors that may be associated with this poor outcome.

Methods: This was a cohort study including 680 patients operated for esophageal cancer between 2000 and 2010.

Gap plasmon mode of eccentric coaxial metal waveguide.

The gap plasmon mode of an eccentric coaxial waveguide is analyzed by the effective index method. The results agree-well with fully-vectorial numerical calculations. In the eccentric structure, there is extreme subwavelength field localization around the narrowest gap due to the gap plasmon.