Quotation from: Manual of Surgery

Written by: Alexander Miles and Alexis Thomson


The patient is liable to sudden attacks of numbness, tingling and
weakness of the limbs which pass off with rest--_intermittent
claudication_. During these attacks the large arteries--femoral,
brachial, and subclavian--can be felt as firm cords, while pulsation is
lost in the peripheral vessels. Gangrene eventually ensues, is attended
with great pain and runs a slow course. It is treated on the same lines
as Raynaud's disease.


#Gangrene from Ergot.#--Gangrene may occur from interference with blood
supply, the result of tetanic contraction of the minute vessels, such as
results in ill-nourished persons who eat large quantities of coarse rye
bread contaminated with the _claviceps purpurea_ and containing the
ergot of rye. It has also occurred in the fingers of patients who have
taken ergot medicinally over long periods. The gangrene, which attacks
the toes, fingers, ears, or nose, is preceded by formication, numbness,
and pains in the parts to be affected, and is of the dry variety.

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