Thomas Porter, M.D., FASE, the Theordore F. Hubbard Distinguished Chair of Cardiology and a professor of medicine at the University of Nebraska Medical Center, explains a new study on how cardiac ultrasound imaging combined with bubble contrast was able to break down blood clots and restore blood flow to blocked vessels in STEMI heart attack patients. He gave an update on this new potential therapeutic direction for ultrasound at the 2019 American Society Of Echocardiography (ASE) meeting.
The Brazilian study used this approach in about 100 ST-elevated myocardial infarction (STEMI) patients and was recently published in the Journal of the American College of Cardiology (JACC). Porter said about 50 percent of patients had their ST resolved by the time they made it to the cath lab for percutaneous coronary intervention (PCI). Two more studies in Amsterdam and Pittsburgh are now starting to see if this technique can be used while transporting patients in an ambulance to further improve heart attack outcomes and to reduce infarct size.
Porter also explains recent research that shows ultrasound pulses promote ATP and nitric acid production, which have a lasting beneficial effect on small vessel perfusion in the area treated and down stream for hours after the use of the transducer.
Watch the VIDEO: Therapeutic Applications for Contrast Ultrasound — another interview with Porter.