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在78具成人尸体的奇静脉系统中,奇+半+副半型的出现率为64.10％。但半奇静脉系的组成变化很大,这种分型法不易有统一标准。本文根据Seib的观点,以半奇静脉系的中断情况,将奇静脉系分成双干、中间和单干三型,其中以中间型居多(52.56％)。中国人半奇静脉系中断次数和奇静脉与半奇静脉系间的交通支都较白种人多,差异明显,提示了白种人奇静脉系可能接近胚胎型。奇静脉中段常凸向正中线之左,奇静脉系起始处常与下腔静脉或肾静脉连接,这些宜引起临床重视。
In 78 adult human azygos system, odd + semi + semi-haploidentical appearance was 64.10%. However, the composition of semi-azygos vein changes greatly, this type of method is not easy to have a uniform standard. According to Seib’s point of view, this article divides the azygos vein into three types: doubly dry, middle and simplex, of which the middle type is predominant (52.56%). The number of interruptions of the Chinese azygos vein and the traffic branches between the azygous and semi-azygos tend to be more than that of the Caucasian population, indicating that the azygos of the Caucasian may be close to the embryo. The middle part of the azygos vein often protrudes to the left of the midline. The origin of the azygos vein is often connected to the inferior vena cava or renal vein, which should arouse clinical importance.