New human trial shows stem cells are effective for failing hearts: Bone marrow-derived stem cells injected directly into heart muscle

Patients with severe ischemic heart disease and heart failure can benefit from a new treatment in which stem cells found in bone marrow are injected directly into the heart muscle, according to new research. The study is the largest placebo-controlled double-blind randomized trial to treat patients with chronic ischemic heart failure by injecting a type of stem cell known as mesenchymal stromal cells directly into the heart muscle.