Response to “Letter to the editor: Predictors of internal mammary vessel diameter: A computed tomographic angiography-assisted anatomic analysis”, Madada-Nyakauru, et al.
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Keywords:
Computed tomographic angiography
Mammary artery
目的
探讨超声引导下静脉留置针穿刺在神经外科CT血管造影(CTA)检查中的应用价值。
方法
选择湖州市第一人民医院神经外科2016年8月至2017年7月收治的需行CTA检查而置入20 G外周静脉留置针的患者180例为研究对象，采用随机数字表法分为对照组90例和观察组90例。对照组采用常规技术置入留置针，观察组将超声引导技术应用于静脉留置针置入的全过程，包括操作前血管的评估、留置针型号的选择、操作时的实时引导及操作后的确认。比较两组穿刺成功率、检查完成率、并发症发生率、患者满意度。
结果
观察组一次穿刺置管成功率为97.8%(88/90)，检查完成率为93.3%(84/90)，并发症发生率为3.3%(3/90)，对照组分别为81.1%(73/90)、78.9%(71/90)、15.6%(14/90)，两组差异均有统计学意义(χ2＝13.239、7.850、7.860，均P<0.01)；观察组患者非常满意率为95.6%(86/90)，高于对照组的75.6%(68/90)(χ2＝14.565，P<0.01)。
结论
超声引导下静脉留置针穿刺是一种快速、有效、安全的护理操作技术，有效地提高了神经外科护理的工作效率，使患者安全的完成检查。
Computed tomographic angiography
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Coronary Computed Tomography -2 / Echocardiography for valvular heart disease 487 optimal cut-off values.The first group was defined as having baseline CACS's under 44 AU and annual percent progressions of CACS under 9%/year.The second group was classified as those who had either more than 44 AU baseline CACS's plus a less than 9%/year annual percent progression or those had a less than 44 AU baseline CACS's with a more than 9%/year annual percent progression.The third group consisted of patients with a greater than 44 AU baseline CACS as well as a greater than 9%/year annual percent progression.In the multivariate analysis, the third group showed a 16 fold higher likelihood of having MACE than reference group 1 [Hazard ratio (HR) 15.57, 95% CI 1. 72-141.44,p=0.02]. Conclusions:The baseline CACS combined with an annual percent progression of CACS can effectively predict future MACE.The suggested optimal cut-off value of baseline CACS is 44 AU with an annual percent progression of 9%/year.
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Computed tomographic angiography
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