1 Forward Looking Statements Non-GAAP Measures This presentation contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements that address activities, events or developments that AtriCure expects, believes or anticipates will or may occur in the future, such as earnings estimates, other predictions of financial performance, launches by AtriCure of new products and market acceptance of AtriCure’s products. Forward-looking statements are based on AtriCure’s experience and perception of current conditions, trends, expected future developments and other factors it believes are appropriate under the circumstances and are subject to numerous risks and uncertainties, many of which are beyond AtriCure’s control. These risks and uncertainties include the rate and degree of market acceptance of AtriCure’s products in the United States, AtriCure’s ability to develop and market new and enhanced products, the timing of and ability to obtain and maintain regulatory clearances and approvals for its products and the impact of failure to obtain such clearances and approvals on its ability to promote its products and train doctors in the use of its products, the timing of and ability to obtain reimbursement of procedures utilizing AtriCure’s products and the potential impact of current healthcare reform initiatives thereon, competition from existing and new products and procedures or AtriCure’s ability to effectively react to other risks and uncertainties described from time to time in AtriCure’s SEC filings, such as fluctuation of quarterly financial results, reliance on third party manufacturers and suppliers, litigation or other proceedings (including by the FDA), government regulation, negative publicity, current worldwide economic conditions and stock price volatility. AtriCure does not guarantee any forward-looking statements, and actual results may differ materially from those projected. Unless required by law, AtriCure undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. A list and description of risks, uncertainties and other matters can be found in AtriCure’s Annual Report on Form 10-K for 2010 and in AtriCure’s reports on Forms 10-Q and 8-K. This presentation includes the use of non-GAAP measures, which are noted with a *. Reference AtriCure’s 8-K’s filings which include the furnishing of our earnings releases for a reconciliation to the related GAAP measure. | 
