ANAHEIM, Calif.--(BUSINESS WIRE)--ClearFlow Inc., a medical device company based in Anaheim, California, has announced the publication of significantly positive results in a study evaluating the company’s PleuraFlow® Active Clearance Technology® System. Data indicating a marked reduction in Retained Blood Syndrome (RBS) and Postoperative Atrial Fibrillation (POAF) among patients recovering from heart surgery was published in the March issue of the Journal of Thoracic and Cardiovascular Surgery.