Research Article

Efficacy Assessment of Phentolamine Accompanied by Lidocaine Subcutaneously under Ultrasound Guidance on Radial Artery Catheterization in Pediatric Patients

Table 5

Radial artery catheterization data.

VariablesSaline group ()Phentolamine group ()Phentolamine+lidocaine group () value

First-attempt success rate (%)10 (58.82%)16 (88.89%)18 (90.00%)0.032
Procedure time to success within the first attempt (s)<0.01
Second-attempt success rate within 10 min (%)14 (82.35%)16 (88.89%)18 (90.00%)0.761
Procedure time to success within the second attempt (s)<0.01
Use of another artery (%)3 (17.65%)2 (11.11%)2 (10.00%)0.761
Overall procedure time of arterial cannulation (s)<0.01
Overall numbers of attempts0.262