All posts tagged: Heart News

What TV Dramas Get Wrong About CPR—and the Real-World Cost

What TV Dramas Get Wrong About CPR—and the Real-World Cost

TV varies dramatically in informing viewers about medical emergencies, but it also teaches audiences how not to perform cardiopulmonary resuscitation (CPR). As part of a new study conducted at the University of Pittsburgh School of Public Health and the University of Pittsburgh School of Medicine, researchers found that existing portrayals of CPR across scripted television in the U.S. depict many outdated practices. These practices could mislead viewers when confronted with an actual cardiac arrest and cause them to delay responding with the lifesaving action they would have otherwise taken. This research, which appears in the journal Circulation: Population Health and Outcomes, is the first to comprehensively assess how bystander CPR is portrayed in scripted television programming in the U.S. It was conducted by assistant professor Beth L. Hoffman, Ph.D., MPH, of the Pitt School of Public Health, and recent Pitt graduate Ore Fawole, B.S., B.A., who was the lead author on the research. This study arrives almost 20 years after the American Heart Association issued its first public guidance regarding CPR. The association’s recommended approach …

Tiny human heart organoids open the door to safer, faster drug discovery

Tiny human heart organoids open the door to safer, faster drug discovery

Millions of people live with atrial fibrillation, a racing, uneven heartbeat that can leave you exhausted and scared. Yet it has been at least 30 years since a new drug for this common rhythm problem reached patients. One major reason is simple and frustrating. Scientists have not had a realistic human heart model to test ideas and medicines. That gap may finally be closing. Researchers at Michigan State University have built tiny, beating human heart organoids that can be pushed into an atrial fibrillation state and then brought back toward a normal rhythm with drugs. For the first time, you can watch something that looks and behaves like human heart tissue slip into arrhythmia in a dish. Building a Miniature Human Heart The work started in 2020, when MSU scientist Aitor Aguirre and his team began growing three dimensional heart organoids from donated human stem cells. These stem cells can turn into many different cell types. With the right signals, they self organize into small, lentil sized structures that pulse on their own. Autologous hPSC-derived …