Randomised controlled trial of paracetamol for heel prick pain in neonates
a Women's College Hospital, Department of
Newborn and Developmental Paediatrics, Faculty of Medicine,
University of Toronto, Ontario Canada M5S
1B2, b Department of
Paediatrics, The Hospital for Sick Children,
Toronto
Correspondence to: Dr Vibhuti Shah.
Accepted 14 June 1998
AIM
To evaluate the effectiveness of paracetamol
in decreasing the pain from heel prick.
METHODS
A prospective randomised double blind
placebo controlled trial was conducted of 75 term neonates undergoing
heel prick. Sixty to 90 minutes before the procedure neonates received
paracetamol orally in a dose of 20 mg/kg (group 1) or an equal volume
of placebo (group 2). Heel prick was performed in a standardised
manner. Pain assessments were made using per cent facial action (brow bulge, eye squeeze, and nasolabial fold (range 0-300%) and per cent
of time spent crying (range 0-100%).
RESULTS
Thirty eight neonates were enrolled in
group 1 and 37 neonates in group 2. There were no significant
differences in the demographic characteristics between groups. Mean
gestational age was 39 (SD 1.4) vs 39.4 (SD 1.2) weeks,
p=0.86, mean birthweight 3.45 (SD 0.45) vs 3.44 (SD 0.42)
kg; p=0.31 for groups 1 and 2, respectively. Facial action pain scores
did not differ between groups (143.5 (SD 54.2)% vs 131.1 (SD 59.6)%; p=0.38). Cry scores also did not differ (29.4 (SD 19.9)%
vs 26.8 (SD 20.2)%; p=0.60). No adverse effects were observed.
CONCLUSION
Paracetamol is ineffective for
decreasing the pain from heel prick in term neonates.
© 1998 by Archives of Disease in Childhood
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