Venous Obstruction of the Upper Extremity Caused by a Malformed Valve of the Subclavian Vein
A 39-year-old laborer with a venous obstruction of the left upper extremity was studied by selective phlebography. Surgery revealed that the obstruction was caused by an anomalous venous valve, diaphragm-like, at the middle third of the subclavian vein. The removal of the anomalous valve resulted in complete relief of the obstruction.
This is the only known case of venous obstruction caused bv a malformed valve.
The authors suggest that the term "primary venous obstruction" of the upper extremity be used instead of "traumatic thrombosis" or "Paget-Schroetter" syndrome, in cases in which the etiology has not been ascertained.
- © 1963 American Heart Association, Inc.