Efficacy Assessment of Phentolamine Accompanied by Lidocaine Subcutaneously under Ultrasound Guidance on Radial Artery Catheterization in Pediatric Patients
Table 3
Changes of radial artery diameter.
Variables
Saline group ()
Phentolamine group ()
Phentolamine+lidocaine group ()
value
Diameter before injection (mm)
0.906
Diameter after injection (mm)
<0.01
value
0.303
0.037
<0.01
Diameter after catheterization (mm)
<0.01
Percentage change of diameter before and after injection (%)
