... In its simplest form, local syncope is a condition perfectly compatible with health. Persons who are attacked with it, and who are ordinarily females, see under the least stimulus, sometimes without appreciable cause, one or many fingers become pale and cold all at once; in many cases it is the same finger which is always first attacked; the others become dead successively and in the same order. It is the phenomenon known under the name of the "dead finger." The attack is indolent, the duration varies from a few minutes to many hours. The determining cause is often the impression of cold; but that which is only commonly produced under the influence of the most severe cold, appears in the subjects of whom I speak on the occasion of the least lowering of temperature; sometimes even a simple mental emotion is enough. It would appear that the same
Raynaud M. ON LOCAL ASPHYXIA and SUMMETRICAL GENGRENE OF THE EXTREMITIES. Arch Neurol. 1969;20(6):669–672. doi:10.1001/archneur.1969.00480120115013
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