Abbott announced clinically meaningful changes to quality of life, a reduction in rehospitalization for heart failure, and functional improvements for patients treated with the company's first-in-class, catheter-based MitraClip therapy for patients with degenerative mitral regurgitation (MR). Findings were presented at the 25th annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium in San Francisco and simultaneously published in the Journal of the American College of Cardiology.