在15周到18周之间有两个极好的检查可以选择来甄别染色体异常和神经管缺损症状，比如：唐氏综合症和脊柱裂。

There are two test options available between the 15th and 18th weeks to screen for chromosomal abnormalities and neural tube defects such as Down's syndrome and spina bifida.

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结论：肝周填塞在严重肝挫裂伤的治疗上有着重要作用，填塞止血的效果确切，填塞引起的并发症可以防治。

Conclusions: Perihepatic packing plays an important role as an auxiliary treatment of severe liver injury, and the accompanied complications induced by packing can be prevented and controlled.

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目的：探讨肝周填塞治疗严重肝挫裂伤的效果及并发症的防治。

Objectives: To evaluate the efficiency of perihepatic packing as an auxiliary treatment in severe liver injury.

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