Vanguard Health Systems, Inc. (NYSE: VHS) (the “Company”) announced today that its management will participate in the 2012 Barclays Global Healthcare Conference in Miami, Florida. The Company’s presentation will begin at 2:30 p.m. (ET) on March 13, 2012 and will be available through a live audio webcast of the presentation. To access the webcast, listeners should go to the investor relations section of the Company’s website at http://investor.vanguardhealth.com. The Company’s management will also be presenting at the Barclays Capital High Yield Bond and Syndicated Loan Conference on March 26, 2012 at 4:45 p.m. (MT) in Phoenix, Arizona. This presentation can be accessed on the investor relations section of the Company’s website at http://investor.vanguardhealth.com. If you cannot listen to the live broadcasts, a replay of the presentations will be available on the investor relations section of the Company’s website. About Vanguard Health Systems www.vanguardhealth.com Vanguard Health Systems owns and operates 28 acute care and specialty hospitals and complementary facilities and services in metropolitan Chicago, Illinois; metropolitan Phoenix, Arizona; metropolitan Detroit, Michigan; San Antonio, Texas; Harlingen and Brownsville, Texas; and Worcester and metropolitan Boston, Massachusetts. Vanguard Health Systems’ strategy is to develop locally branded, comprehensive healthcare delivery networks in urban markets.