摘要
目的通过彩色多普勒超声,对已行外周穿刺中心静脉导管术(PICC)的早产儿上肢静脉血流进行观察,探讨PICC的可行性。方法以腋静脉为观察对象,应用彩色多普勒检测56例拔管前和26例拔管后早产儿置管侧与对侧收缩期最大流速Vs、舒张期最大流速Vd及管径D。并按置管时间分为≤15d,15<d≤30,>30d3组,将置管侧与对侧相比较。结果置管侧Vs明显低于对侧(14.37±4.43Vs20.71±4.81,P<0.01),Vd明显低于对侧(9.80±2.83Vs13.52±3.04,P<0.01),管径明显粗于对侧(0.24±0.02Vs0.19±0.02,P<0.01),各时间组上述各参数均P<0.01。拔管后各参数差异无显著性意义。结论PICC可引起上肢静脉血流速度的减慢,但拔管后无不良影响,不失为一种很好外周给药方法,但必须在临床和彩色多普勒的密切监视下。
Objective To observe the influence on the blood flow of premature infant′s veins of upper extremity after placing peripherally inserted central catheter (PICC), and to study feasibility of PICC by Color Doppler Flow Imaging. Methods Fifty six infants were divided into three groups according to the time of the PICC placed: in groupⅠPICC was placed for less than15d, in group Ⅱthe time of PICC placement was between15 days and 30days, in group Ⅲthe time was longer than 30 days Twenty six inflants were also observed after the catheter had been removed. In comparative study of the bilateral axillary veins, the maximum velocity of systolic flow (Vs), the maximum velocity of diastolic flow (Vd), and the diameter of blood vessel (D) were measured by Color Doppler Flow Imaging(CDFI). Results In the fifty six infants of 3 groups, Vs and Vd of the axillary vein inserted with PICC were significantly lower than the contralateral side (Vs: 14.37±4.43 and 20.71±4.81, P< 0.01; Vd:9.80±2.83 and 13.52±3.04, P< 0.01, while D of the axillary vein with PICC placed was significantly larger than the contralateral side(0.24±0.02 and 0.19±0.02, P< 0.01). But no significant difference of the parameters between the bilateral sides was revealed after decannulation.Conclusion PICC slows down the blood flow rate of the veins of upper extremity, but there was no sequel after catheter is removed, which is a good veinous access. And PICC should be closely monitored by the clinic and CDFI..
出处
《影像诊断与介入放射学》
2004年第2期95-97,共3页
Diagnostic Imaging & Interventional Radiology
关键词
彩色多普勒超声
早产儿
外周穿刺
中心静脉置管术
血流速度
Color Doppler Flow Imaging(CDFI)
Axillary vein
Peripherally inserted central catheter (PICC)
