Heart-failure patients have a hard time avoiding hospitals, but a new implantable sensor could help by giving doctors data to catch worsening symptoms and guide treatment while patients are still home. A private company called CardioMEMS Inc. makes the wireless device, which detects increasing artery pressure that can presage fluid retention that often leads to hospitalization. By relaying this data to doctors daily over a secure website, the hope is patients can adjust their medication to improve treatment and ward off trips to the hospital.
