A tiny device, no bigger than a paper clip, may be improving the lives of heart failure patients.
Implanted in the pulmonary artery, this wireless sensor allows doctors to detect fluid buildup weeks before symptoms appear. When the heart is unable to pump enough blood to meet the body’s needs, fluid builds up in the surrounding tissue. For millions suffering from congestive heart failure (CHF), this early warning system may mean fewer emergency room visits, reduced hospitalizations, and improved quality of life.





