From Eviva Eviva has provided state of the art, industry leading surgical and medical care for patients suffering with obesity since 2005 performing over 3000 same day weight loss procedures. We have pioneered and perfected weight loss procedures and practices to help people live the lives they want: In 2008, Eviva was first in the world to perform a same day vertical sleeve gastrectomy (VSG), and given the unique care we pioneered, attained the trademark LapSleeve?. Our excellent results include amount of weight lost, improvement and resolution of related medical problems, and a safety record second to none. The VSG is now the most common metabolic and weight loss surgery performed in the world.