Subclavian vein stenosis caused by non-hemodialysis reasons is uncommon. 非血液透析原因所致的锁骨下静脉狭窄少见。
Its etiology is assumed to be abnormal embryologic development of the inferior vena cava as a result of atrophy failure of the right subcardinal vein in the lumbar portion. 导因为下腔静脉的异常胚胎发展结果导致在腰部的右侧心下静脉未萎缩。