World First: Heart Bypass Surgery Performed Without Cutting the Chest

In a world-first medical breakthrough, researchers at the National Institutes of Health (NIH) and Emory School of Medicine have successfully performed a coronary artery bypass—normally an open-heart surgery—without cutting the chest wall. The patient was a 67-year-old man whose replacement heart valve needed replacing, but his unique anatomy meant traditional surgery would block his coronary artery. Due to his complex medical history, open-heart surgery was off the table entirely. 'Our patient had an extensive history of prior interventions, vascular disease, and other confounders, which meant open-heart surgery was completely off the table,' said Dr. Adam Greenbaum at Emory. 'Having a minimally invasive alternative in a case like this is paramount.' The team developed a revolutionary technique called VECTOR (ventriculo-coronary transcatheter outward navigation and re-entry) that creates a new route for blood flow through catheters inserted via leg vessels. No chest incision. No cracked ribs. No months of recovery from major trauma. Using specialized catheters and wires, the team threaded tools through the body's natural vascular system, created a new opening in the aorta downstream from the valve, pierced through the coronary artery wall, and deployed a bypass graft that provides a safe new route for blood flow. Six months after the procedure, the patient shows no signs of coronary artery obstruction. The first human VECTOR procedure was a complete success. 'It was incredibly gratifying to see this project worked through, from concept to animal work to clinical translation, and rather quickly too,' said Dr. Christopher Bruce, first author of the study. 'There aren't many other places in the world that can move as quickly and successfully as we can at NIH in collaboration with our partners at Emory.' The breakthrough could transform treatment for patients who are too fragile for traditional open-heart surgery and may eventually find applications in treating coronary diseases more broadly.