Silver Book Fact
Patients with severe MR who don’t have surgery have mortality rates of 20% after 1-year and 50% after 5-years

Goel S, Bajaj N, Agaarwall B, Gupta S, et al. Prevalence and Outcomes of Unoperated Patients with Severe Symptomatic Mitral Regurgitation and Heart Failure. J Am Coll Cardiol. 2014; 63(2). http://www.onlinejacc.org/content/63/2/185