[Value of velocimetric studies in acrosyndromes of the upper extremities]

The velocimetric examination by Doppler effect of arteries and veins of the arm, forearm and hands, performed in an indifferent position, then during dynamic exercises, provides sometimes determining factors in the etiology of some vascular disorders of the upper extremities. Requiring learning, experience, time and patience, this examination is debatable, but, in our experience, absolutely necessary to the work-up of these disorders.