Syncope and Sudden Death Caused by Mitral Valve Myxomas.Puff, Michael B.S.; Taff, Mark L. M.D.; Spitz, Werner U. M.D.; Eckert, William G. M.D.American Journal of Forensic Medicine & Pathology: March 1986 Residents' Corner: PDF Only Abstract Two adults experienced syncopal episodes before dying suddenly. The autopsies revealed mitral valve myxomas. Mitral valve myxomas producing syncope and sudden death are discussed. (C) Lippincott-Raven Publishers.