We thank dr Jain for his comments on our article. It is clear that
pain assessment in infants is a question with many answers. There exists a
big amount of pain assessment instruments using physiological and/or
behavioural parameters. Due to the multidimensional nature of pain an
ideal pain tool should take more than one body system into account (1).
This is done by the Premature Infant Pain Profile (PIPP), that combines
physiological (heart rate, oxygen saturation) and behavioural (facial
expressions) variables with contextual factors like sleeping state and
gestational age. This is also done by the Neonatal Infant Pain Scale
(NIPS) with different behavioural parameters including face activity and
body movement as well as one physiological indicator (breathing pattern).
If one wants to describe these scoring systems in terms of
subjectivity and objectivity, one also have to define which of the
included variables that are considered subjective. It is tempting to
assume that many people would call behavioural parameters subjective
(which they don’t have to be) and in that case NIPS would be more
subjective than PIPP. This classification however, is not a fruitful way
in choosing the ideal pain assessment tool. Both PIPP and NIPS have their
place in research, and in the clinical setting.
Time since last feeding varied in both groups, but there was no
difference between the groups. The number of blood collectors was limited,
and all the nurses that performed the blood sampling were experienced
neonatal nurses with clear instructions about the methods in the actual
study.
The pain relieving effect of sucrose lasts about five minutes with
the most intense effect at two minutes (2); Clinical observations reveals
that the effect of glucose seems to have the same duration. Smaller doses
can be given in a repeated administration if the procedure takes longer
time. The international consensus document about pain in neonates (3)
suggests that sweet solutions should be given as a complement to other
treatment during procedures like lumbar puncture or percutaneous arterial
catheter insertion.
Maria Gradin, Mats Eriksson, Jens Schollin
Department of Paediatrics, Orebro University Hospital
References
1. Abu-Saad HH, Bours GJ, Stevens B, Hamers JP. Assessment of pain in
the neonate. Semin Perinatol 1998;22(5):402-16.
2. Blass EM, Shah A. Pain-reducing properties of sucrose in human
newborns. Chem Senses 1995;20(1):29-35.
3. Anand KJ, International Evidence-Based Group for Neonatal P. Consensus
statement for the prevention and management of pain in the newborn.
Archives of Pediatrics & Adolescent Medicine 2001;155(2):173-80.