Since the first successful transcatheter mitral valve repair (TMVR) in 1984, the surgery has improved dramatically. The procedure, which is usually done as an outpatient procedure, has become less invasive and requires less time to heal. The results are also better than they ever have been, with a high success rate and minimal side effects. If you're considering a TMVR, this guide will help you understand everything you need to know about the device, procedure, and results.