AffiliationDepartment of Neonatology, Cork University Maternity Hospital, Cork, Ireland.
MetadataShow full item record
CitationThe Neopuff's PEEP valve is flow sensitive. 2011, 100 (3):360-3 Acta Paediatr.
JournalActa paediatrica (Oslo, Norway : 1992)
AbstractThe current recommendation in setting up the Neopuff is to use a gas flow of 5-15 L/min. We investigated if the sensitivity of the positive end expiratory pressure (PEEP) valve varies at different flow rates within this range.
Five Neopuffs were set up to provide a PEEP of 5 cm H(2) O. The number of clockwise revolutions to complete occlusion of the PEEP valve and the mean and range of pressures at each quarter clockwise revolution were recorded at gas flow rates between 5 and 15 L/min. Results: At 5, 10 and 15 L/min, 0.5, 1.7 and 3.4 full clockwise rotations were required to completely occlude the PEEP valve, and pressures rose from 5 to 11.4, 18.4 and 21.5 cm H(2) O, respectively. At a flow rate of 5 L/min, half a rotation of the PEEP dial resulted in a rise in PEEP from 5 to 11.4cm H(2) O. At 10 L/min, half a rotation resulted in a rise from 5 to 7.7cm H(2) O, and at 15 L/min PEEP rose from 5 to 6.8cm H(2) O.
Users of the Neopuff should be aware that the PEEP valve is more sensitive at lower flow rates and that half a rotation of the dial at 5 L/min gas flow can more than double the PEEP.
- Potential hazard of the Neopuff T-piece resuscitator in the absence of flow limitation.
- Authors: Hawkes CP, Oni OA, Dempsey EM, Ryan CA
- Issue date: 2009 Nov
- The effect of a PEEP valve on a Laerdal neonatal self-inflating resuscitation bag.
- Authors: Morley CJ, Dawson JA, Stewart MJ, Hussain F, Davis PG
- Issue date: 2010 Jan
- Changing gas flow during neonatal resuscitation: a manikin study.
- Authors: Schilleman K, Schmölzer GM, Kamlin OC, Morley CJ, te Pas AB, Davis PG
- Issue date: 2011 Jul
- Repeated thermo-sterilisation further affects the reliability of positive end-expiratory pressure valves.
- Authors: Hartung JC, Schmölzer G, Schmalisch G, Roehr CC
- Issue date: 2013 Sep
- Low versus high gas flow rate for respiratory support of infants at birth: a manikin study.
- Authors: te Pas AB, Schilleman K, Klein M, Witlox RS, Morley CJ, Walther FJ
- Issue date: 2011