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Breastfeeding reduces pain in neonates

J Fam Pract. 2003 May;52(5):349-364
By
Beth Potter, MD
Kirsten Rindfleisch, MD
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  • BACKGROUND: Healthy neonates routinely undergo painful minor procedures. Evidence suggests that infants do feel pain, and painful experiences may lead to subsequent increased pain sensitivity. Due to concerns regarding the potential adverse effects of pharmacological interventions in newborns, effective alternatives for pain control have been sought.
  • POPULATION STUDIED: The researchers observed 180 term, breastfed infants ranging in age from 1 to 5 days. All infants included in the study were healthy, with 5-minute Apgar scores 7 out of 10. Infants who were unstable or who had received a sedative, major analgesic, or naloxone in the previous 24 to 48 hours were excluded from the study.
  • STUDY DESIGN AND VALIDITY: Infants and their mothers were taken to a quiet room for venipuncture. They were randomly assigned to 1 of 4 groups. In the first group, infants were breastfed for 2 minutes prior to and during venipuncture. In the second group, infants were held in their mothers’ arms without breast-feeding prior to and during the procedure. In the third group, infants were laid on a table and given 1 mL of sterile water orally through a syringe over the course of 15 seconds. In the fourth group, infants were laid on a table and given 30% sucrose solution orally followed by a pacifier.
  • OUTCOMES MEASURED: The observers rated the infants’ expression of pain. The Douleur Aiguë Nouveau-né (DAN) scale evaluates facial expressions, limb movements, and vocalizations in infants to generate a score from 0 (no pain) to 10 (maximum pain). A second pain scale, the Premature Infant Pain Profile (PIPP), measures age, behavioral state, heart rate, oxygen saturation, and facial expression to generate a score from 0 (no pain) to 18 (maximum pain) in term infants.
  • RESULTS: The median pain scores were lowest with breastfed infants (DAN=1 and PIPP=4.5). The next-lowest median scores were in infants receiving sucrose and pacifier (DAN=3 and PIPP=4). Infants held in their mothers’ arms and those given sterile water had similar median pain scores (DAN=10 and PIPP=13, and DAN=10 and PIPP=12, respectively).
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PRACTICE RECOMMENDATIONS

Breastfeeding is a safe and effective analgesic for healthy neonates undergoing painful minor procedures. This may be another reason to encourage mothers to breastfeed their infants when possible.

Increasing evidence suggests long-term deleterious effects associated with the experience of pain in the neonatal period. A remaining question is: should we encourage mothers to breastfeed when infants are receiving their vaccinations?

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