BACKGROUND: Radial artery puncture is a common procedure and yet the role of local anesthesia for reducing the @entity158 of this procedure continues to be debated. Clinical practice is variable and there is potential for substantial financial savings. This is the first randomized trial to investigate the effectiveness of subcutaneously injected @entity3303 anesthesia on the perceived @entity158 and the financial impact. METHODS: Between December 2012 and April 2013, 43 @entity1 in the Emergency Department were randomized into the intervention group to receive @entity3303 1% 1 mL subcutaneously or the control group (to receive no local anesthesia) prior to radial artery puncture for blood gas sampling. @entity158 was rated on a 10 cm visual analogue scale and procedural variables collected for between group analyses. RESULTS: Overall, 41 @entity1 were included. Subcutaneously injected @entity3303 anesthesia did not reduce the median @entity158 (control 1.8 vs. intervention 1.6 cm, P = 0.938). Those @entity1 who had other systemically acting @entity1337 appeared to report reduced @entity158 for radial artery puncture (0.60 vs. 2.30 cm, P = 0.105) as did those where a smaller 25-gauge needle was used compared to the standard 22-gauge (1.40 vs. 4.35 cm, P = 0.150), although these were not statistically significant. Anxious @entity1 and those requesting local anesthesia experienced relatively higher levels of @entity158 . CONCLUSION: Local anesthesia did not reduce the perceived @entity158 .

Radial artery blood gas sampling: a randomized controlled trial of XXXX local anesthesia.

@entity1 :: ('9606', 'Species') :: ['participants', 'patients'] @entity3303 :: ('MESH:D008012', 'Chemical') :: ['lidocaine'] @entity158 :: ('MESH:D010146', 'Disease') :: ['Pain', 'pain', 'pain of radial artery puncture'] @entity1337 :: ('MESH:D000699', 'Disease') :: ['analgesia']
@entity3303 :: (MESH:D008012,Chemical) :: ['lidocaine']
