L. Choy et al., Comparison of lignocaine-prilocaine cream and amethocaine gel for local analgesia before venepuncture in children, ACT PAEDIAT, 88(9), 1999, pp. 961-964
The efficacy of lignocaine-prilocaine cream (EMLA(TM)) and amethocaine gel
(Ametop(TM)) in reducing the pain and distress of venepuncture was compared
in a single-blind randomized study of 34 children aged 1-14y. The influenc
es of age, anxiety and past experience were also investigated. Pain was ass
essed by the researcher using the Observation Scale of Behavioural Distress
, and by the parent, doctor and child (if old enough) using a 10-cm, 100-po
int Visual Analogue Scale (VAS). Doctors also completed a simple rating sca
le for difficulty of venepuncture. Compared to older children, infants had
significantly more anxious parents and were more distressed when being held
still. Anticipatory anxiety correlated with higher pain ratings. No differ
ences in the analgesic effect of the two preparations were found. We conclu
de that whilst EMLA and Ametop are equally effective at reducing the pain o
f needle puncture, under some circumstances the use of Ametop may be more a
dvantageous.