Adverse events/Groups

Control group (n = 75)

Research group (n = 75)

χ²

P value

Catheter occlusion

17 (22.67)

2 (2.66)

13.56

<0.001

Catheter detachment

9 (12.00)

1 (1.33)

6.86

0.009

Drug extravasation

8 (10.67)

0 (0)

8.45

0.04

Venous inflammation

14 (18.67)

1 (1.33)

12.52

<0.001

Puncture site hemorrhage

13 (17.33)

4 (5.33)

5.37

0.02