J. Lekakis et al., ACUTE ESTROGEN ADMINISTRATION CAN REVERSE COLD-INDUCED CORONARY RAYNAUDS-PHENOMENON IN SYSTEMIC-SCLEROSIS, Clinical and experimental rheumatology, 14(4), 1996, pp. 421-424
A 52-year-old postmenopausal woman with long-standing progressive syst
emic sclerosis and Raynaud's phenomenon was examined by dipyridamole-t
hallium-201 myocardial imaging and cold presser thallium-201 myocardia
l scintigraphy. The dipyridamole test revealed normal myocardial perfu
sion, while the cold pressor test showed reversible ischemia to the an
teroapical myocardial wall, indicating coronary Raynaud's phenomenon.
Acute intravenous administration of conjugated estrogens led to normal
ization of the cold-induced thallium-201 defect. This is the first rep
orted case of the beneficial effect of estrogens in coronary Raynaud's
phenomenon.