头臂动脉颈段气管前方颈前静脉弓出现率为100%。

Brachiocephalic artery Fluff cervical vein cervical trachea in front of the bow was 100%.

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结果：本组无因静脉输液不畅而影响院前急救，无颈外静脉穿刺相关并发症发生。

Results: None of the cases affected pre-hospital care because of intravenous transfusion obstacle. No puncture-related complications occurred.

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目的：探讨颈外静脉留置针穿刺在院前急救中的重要性。

Objective: To explore the importance of indwelling needle puncture of external jugular vein in pre-hospital care.

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