Digital heart twins revolutionize arrhythmia treatment with 100% success rate

A groundbreaking clinical trial has shown how digital twins of human hearts can improve treatment for dangerous arrhythmias. Researchers at Johns Hopkins University used personalised 3D heart models to guide procedures, achieving a 100% success rate in eliminating ventricular tachycardia for all participants. The TWIN-VT trial involved 10 patients who had previously suffered heart attacks and developed ventricular tachycardia—a life-threatening irregular heartbeat. Each received a digital twin of their heart, created from detailed 3D MRI scans. These virtual models allowed doctors to simulate and refine ablation procedures before performing them on the real organ.

The digital twins predicted the best targets for ablation and assessed whether the arrhythmia would return. Traditional methods rely on trial and error during surgery, but this approach eliminated guesswork. After more than a year, none of the patients experienced a recurrence of arrhythmia—a stark contrast to the 60% long-term success rate seen with conventional treatments. Eight participants no longer needed anti-arrhythmia medication, while the remaining two reduced their doses. The study, published in the *New England Journal of Medicine*, confirmed the method's safety, precision, and potential to transform cardiac care.

The trial's results suggest digital twins could make ablation faster, more accurate, and longer-lasting. With all 10 patients remaining arrhythmia-free, the technique outperformed standard treatments. Johns Hopkins plans further clinical trials to explore broader applications of this technology.