ANDOVER, Mass.--(BUSINESS WIRE)--April 13, 2006--Diomed Holdings, Inc. (AMEX: DIO - News), a leading developer and marketer of minimally invasive medical technologies, including its patented EndoVenous Laser Treatment (EVLT®) for varicose veins, today announced that it will host a conference call to review the company’s first quarter ended March 31, 2006 financial results.