A new non-invasive method of infant spirometry demonstrates a level ofrepeatability that is comparable to traditional methods

作者：Bentsen Mariann H L^*; Haaland Oystein A; Lonning Lise B; Gudmundsdottir Hrefna K; Markestad Trond; Halvorsen Thomas

来源：Acta Paediatrica, 2015, 104(11): 1130-1137.

DOI：10.1111/apa.13155

• Infant
• Plethysmography
• Premature
• Respiratory function tests
• Spirometry

AimThe FloRight system provides novel non-invasive infant spirometry based on electromagnetic inductance plethysmography. We investigated the consistency of repeated measurements carried out in a Norwegian neonatal intensive care unit (NICU) using the system and how well these were tolerated.
MethodsTidal flow-volume loops were obtained from 10 preterm infants at discharge, 10 stable growing preterm infants weighing about 1500g and 10 term-born infants. A nurse experienced with the system measured all patients before and after meals, and these measurements were repeated by nurses new to the system.
ResultsThe measurements were well tolerated by the infants. The repeatability for the two parameters tidal volume' (Vt) and time to peak tidal expiratory flow to total expiratory time' (Tptef/Te) were relatively poor, similar to previous methods. However, the repeatability was good for the new flow-volume gravity mid-point' (FVg) parameter. Repeatability was better for term than preterm infants, when measurements were obtained by the experienced nurse and for measurements carried out before meals.
ConclusionThe FloRight system proved feasible in a NICU setting. The repeatability of the lung function measurements was similar to those reported for traditional infant spirometry. The nurse's experience and the relationship to meals appeared to be important.

• 出版日期2015-11