Decreased ventilation in preterm infants during oral feeding

Academic Article


  • As respiratory difficulty may accompany nipple feeding in preterm neonates, we studied the effect of oral feeding on ventilation in 23 preterm infants. The infants composed two groups based on their postconceptional age at the time of study: Group A comprised 12 infants 34 to 35.9 weeks of age, and group B, 11 infants 36 to 38 weeks. Ventilation was measured via a nasal mask pneumotachometer, and sucking pressure via a nipple that also permitted milk delivery; transcutaneous Po and Pco were continuously monitored. The feeding pattern comprised an initial period of continuous sucking of at least 30 seconds, followed by intermittent sucking bursts for the remainder of the feed. When compared with an initial semi-upright control period, minute ventilation (V̇ ) during continuous sucking fell by 52±6% (P<0.001) and 40±2% (P<0.001) in groups A and B, respectively. This was the result of a decrease in respiratory frequency and tidal volume and was associated with a fall in TcPo of 13±4 mm Hg (P<0.01) in troup A and 10±2 mm Hg (P<0.01) in group B. During intermittent sucking, V̇ and TcPo recovered partially only in the more mature infants (group B). At the end of the feed, TcPco had risen by 3±1 mm Hg (P<0.001) in group A and by 2±2 mm Hg (P<0.05) in group B. Thus oral feeding results in an impairment of ventilation during continuous sucking and the subsequent recovery during intermittent sucking is dependent on postconceptional age. © 1983 The C. V. Mosby Company. 2 2 1 2 1 2 2
  • Authors

    Published In

    Digital Object Identifier (doi)

    Pubmed Id

  • 20496428
  • Author List

  • Shivpuri CR; Martin RJ; Carlo WA; Fanaroff AA
  • Start Page

  • 285
  • End Page

  • 289
  • Volume

  • 103
  • Issue

  • 2