The Effect of Smoking upon Blood Flow in the Sympathectomized Limb
The effect of smoking upon the blood flow of a sympathectomized limb was examined in 19 patients. Sympathectomy was found to abolish the peripheral vasoconstriction produced by smoking. The constriction, therefore, is mediated by sympathetic vasomotor fibers and not by humoral agents such as adrenaline or posterior pituitary hormone. There is no difference in the response of patients sympathectomized for thromboangiitis obliterans, arteriosclerosis or severe vasospasm. The relation between the vasoconstrictor effect of smoking and the action of tobacco in thromboangiitis obliterans is discussed.
- © 1950 American Heart Association, Inc.