CBC.ca | Researchers hope cardiac stem cell transplants help future patients GlobalNews.ca He says the larger the heart attack, the more likely it is the patient will develop heart failure, a condition in which the heart becomes progressively weaker. "Patients develop shortness of breath, initially during activity but later at rest as heart ... Ontario's First Cardiac Stem Cell Transplant Performed Last Week at the Peter ... Heart patient's stem cells harnessed for healing Blackwell on Health: Surgeons hope to fix damaged hearts with stem-cell shot |