Abstract
A low dose of transdermally administered 17 B-estradiol promptly improved a severe, treatment-unresponsive, cardiac arrhythmia initiated after the menopause in a woman with type-II familial hyperlipoproteinemia. The same treatment normalized the hyper. tension initiated after ovariectomy, in a woman who was only poorly controlled by anti-hypertensive drugs. These two cases are the first clear report of cardiovascular therapeutic properties of transdermal estradiol via mechanisms independent of lipopro-tein modifications.