http://articles.mercola.com/sites/articles/archive/2004/10/23/surgery-awake.aspxMedical experts are finding that patients regaining consciousness during surgery is happening at an astounding rate of 50 to 100 times a day. Although these events occur in only 0.1 percent and 0.2 percent of all surgeries, with 21 million operationsenCommunityServer 2008.5 SP1 (Build: 31106.3070)