Dr. Marc Gerdisch, a cardiothoracic surgeon at Franciscan Health Heart Center, talks about heart valves on Thursday, Dec. 14, 2017. Gerdisch is a pioneer in a number of new treatments for heart valve conditions. He most recently became one of the only surgeons in the country to utilize a procedure called the HAART Aortic Annuloplasty to re-size, reshape and stabilize the aortic valve. Scott Roberson / Daily Journal