改良式超声方法在桡动脉穿刺中的应用

目的比较改良式超声与常规超声在桡动脉穿刺中的应用。方法选择行桡动穿刺的患者100例，随机分为改良式超声组（A组）和常规超声组（B组），所有患者均在局部麻醉后在超声下进行桡动脉穿刺，记录两组患者超声定位时间、首次穿刺成功率及并发症发生情况。结果A组超声定位时间比B组显著缩短（P〈0．05），且A组首次穿刺成功率比B组显著提高（P〈0．05），两组穿刺并发症发生率比较差异无统计学意义。结论改良式超声方法能显著提高超声下桡动脉的首次穿刺成功率。

Objective To investigate the advantage of a modified ultrasound technique over traditional ultrasound technique in radial artery cannulation. Methods One hundred patients scheduled for radial artery cannulation were randomly divided into two groups： Modified ultrasound group （ group A ） and Traditional ultrasound group （ group B ） .The ultrasonic location time, rate of cannula insertion successes on the first attempt, insertion failure rate and complications were recorded. Result The ultrasonic location time was significantly decreased in group A compared with group B （ P〈0.05 ） , and group A had a higher rate of carmula insertion successes on the first attempt （ P〈0.05 ） . However. there was no difference between groups in complications. Conelusion The modified ultrasound technique can obviously improve the success rate of cannula insertion into the radial artery on the first attempt.