MINNEAPOLIS & SAN FRANCISCO--(BUSINESS WIRE)--Medtronic, Inc. (NYSE: MDT), along with several partners, today announced details of several major clinical trials aimed at developing and validating new and innovative risk stratification tools to predict which post-myocardial infarction (MI, or heart attack) patients are at greatest risk of Sudden Cardiac Arrest (SCA). Medtronic’s industry-leading research efforts aim to further advance the base of clinical evidence for implanted cardiac device therapies to ensure those patients at greatest risk of SCA are protected.