1. Objective To discuss genesic mechanism of trachea arteria anonyma fistula after tracheotomy.
   目的探讨气管切开术后并发气管无名动脉瘘的发生机理。
2. In these patients, 24 cases were supplied blood by the arteria colica media and 27 cases by the arteria colica sinistra.
   以结肠中动脉作供血血管24例，以左结肠动脉作供血血管27例。
3. Objective To compare the uterogestation of endametrium alteration and uterine arteria blood flow with ectopic pregnancy using color Doppler ultrasonography.
   目的彩超对宫内早孕子宫内膜改变和子宫动脉血流测值与异位妊娠进行比较。
4. Objective To compare the successful rate of two methods of arterial puncture of cephalic arteria and arteria femoralis for blood gas analysis.
   目的比较头皮动脉穿刺和股动脉穿刺两种方法采血进行血气分析检查的穿刺成功率。
5. Methods Analyze the anatomy relation of the trachea and the arteria anonyma and the main reasons of trachea arteria anonyma fistula in clinical through the case.
   方法结合案例对气管与无名动脉的解剖学关系和临床上气管无名动脉瘘的主要原因进行分析。

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