CardioNet Inc., a San Diego-based provider of wireless mobile cardiac outpatient monitoring solutions, has raised $110 million in fifth-round funding. No investor information was disclosed for the deal, which featured Citigroup Global Markets as lead placement agent and Sun Trust Robinson Humphrey as co-placement agent. CardioNet previously had raised around $53 million in equity funding, including a $10 million Series D round in 2004 at a post-money valuation of approximately $230 million. Backers included H&Q, Sanderling Ventures, Guidant Corp., Foundation Medical Partners and IngleWood Ventures. www.cardionet.com