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. 2023 May 20;54(3):648–652. [Article in Chinese] doi: 10.12182/20230560701

表 1. Blood flow velocity before and after PICC placement.

PICC置管前后血流速度

Time Non-PICCRT group
(n=47, Inline graphic)
Asymptomatic PICCRT
(n=95, Inline graphic)
Symptomatic PICCRT
(n=31, Inline graphic)
F * P
 Unit of blood flow velocity: cm/s. * Comparison among three groups: Non-PICCRT, asymptomatic PICCRT, and symptomatic PICCRT. Non-PICCRT vs. asymptomatic PICCRT, Fintergroup*time=15.368, P<0.001; symptomatic PICCRT vs. asymptomatic PICCRT, Fintergroup*time=25.664, P<0.001; symptomatic PICCRT vs. non-PICCRT, Fintergroup*time=4.564, P<0.001.
d0 21.77±4.59 13.25±5.32 11.48±6.58 48.613 <0.001
d1 21.19±5.31 10.24±5.87 8.27±7.14 63.935 <0.001
d3 20.95±5.37 9.34±6.11 8.09±7.65 63.216 <0.001
d5 21.20±5.44 8.99±6.66 7.04±6.95 68.366 <0.001
d7 21.19±5.20 7.91±6.61 5.73±6.51 85.372 <0.001
d9 20.51±4.81 7.38±6.70 5.24±6.19 85.769 <0.001
d11 20.44±5.82 7.11±6.83 5.33±6.26 78.362 <0.001
d13 20.34±7.01 6.21±6.81 4.01±5.02 86.106 <0.001
F=1.717
P<0.001
F=18.643
P<0.001
F=7.486
P<0.001