PLC Plc Systems,

FRANKLIN, Mass., April 24 /PRNewswire-FirstCall/ -- PLC Systems Inc. (AMEX:PLC) announced today that it expects to release to the news wire its financial results for the first quarter ended March 31, 2007 before the market opens on Thursday, May 3, 2007. The company plans to host a conference call to discuss those results at 11:00 a.m. ET on that same day. The call may be joined via telephone by dialing (866) 510-0711 or (617) 597-5379 (for international participants) at least five minutes prior to the start of the call. The conference ID code is: 43136916. A live webcast of the conference call will be available by visiting the PLC Systems website, http://www.plcmed.com/ five minutes before the call begins. The webcast will be archived on this site starting one hour after the call is completed. In addition, a telephonic replay of the call will be available beginning at 1:00 p.m. ET on May 3, 2007, through midnight on May 10, 2007, and can be accessed by dialing (888) 286-8010 or (617) 801-6888 (for international participants), using conference ID code 37331740. About PLC Systems Inc. PLC Systems Inc. is a medical technology company specializing in innovative technologies for the cardiac and vascular markets. Headquartered in Franklin, Mass., PLC pioneered the CO2 Heart Laser System, which cardiac surgeons use to perform CO2 transmyocardial revascularization (TMR) to alleviate symptoms of severe angina. CO2 TMR offers a treatment option for angina patients who suffer from severe coronary artery disease. The CO2 Heart Laser is the world's first TMR angina relief device approved by both the U.S. Food and Drug Administration and Japanese Ministry of Health, Labor and Welfare. The company recently initiated clinical studies for its RenalGuard(TM) Therapy and RenalGuard System. RenalGuard's matched fluid replacement system is designed for interventional cardiology and radiology patients undergoing diagnostic and therapeutic imaging catheterization procedures where contrast agents are administered. Additional company information can be found at http://www.plcmed.com/. PLC Systems, PLC Medical Systems, PLC, CO2 Heart Laser, RenalGuard, RenalGuard System and RenalGuard Therapy are trademarks of PLC Systems Inc. Contact: Mary T. Conway Conway Communications 617-244-9682 DATASOURCE: PLC Systems Inc. CONTACT: Mary T. Conway of Conway Communications, +1-617-244-9682, , for PLC Systems Inc. Web site: http://www.plcmed.com/

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