Harmon J V, Edwards W D
Department of Pathology, Mayo Clinic, Rochester, Minnesota.
Am J Cardiovasc Pathol. 1987 Jan;1(1):51-4.
Valves in the subclavian and internal jugular veins were studied in 100 autopsy cases (52 men and 48 women; range, 18 to 91 years old; mean, 67 years). In 87 cases, valves were present in all 4 veins, and in 13 cases, valves anatomically were absent from 16 veins, 9 of which were the left internal jugular vein. The average distance from the valve to the junction with the innominate vein was 1.7 cm for the subclavian vein and 0.3 cm for the internal jugular vein. Cuspid height averaged 0.9 cm. Valves were bicuspid in 347 (90%) and unicuspid in 39 (10%); unicuspid valves were more common in the internal jugular vein than in the subclavian vein. Catheter-induced trauma was observed in 4 cases and implied in 4 more. These findings may have important implications concerning the failure, in some cases, of closed-chest cardiac resuscitation to maintain forward blood flow at adequate pressure.
对100例尸检病例（52例男性和48例女性；年龄范围18至91岁；平均67岁）的锁骨下静脉和颈内静脉瓣膜进行了研究。87例中，所有4条静脉均有瓣膜；13例中，16条静脉在解剖学上无瓣膜，其中9条为左颈内静脉。锁骨下静脉瓣膜至与无名静脉交界处的平均距离为1.7厘米，颈内静脉为0.3厘米。瓣叶高度平均为0.9厘米。347个瓣膜（90%）为二叶瓣，39个（10%）为单叶瓣；单叶瓣在颈内静脉比在锁骨下静脉更常见。观察到4例导管引起的创伤，另有4例提示有创伤。这些发现可能对某些情况下胸外心脏按压未能以足够压力维持前向血流具有重要意义。
