A new suction mask to reduce leak during neonatal resuscitation: a manikin study

Lorenz, Laila; Maxfield, Dominic; Dawson, Jennifer A; Kamlin, C. Omar F.; McGrory, Lorraine; Thió, Marta; Donath, Susan; Davis, Peter G

doi:10.1136/archdischild-2015-309772

Cited by 7 publications

(3 citation statements)

References 14 publications

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“…No differences in percentage of leak during PPV were found between commercially available facemasks with the same outer diameter 8. Independent of the facemask diameter used (50 mm or 60 mm), leaks of 29%–50% were observed 13–15. O’Currain et al assessed leak during PPV before intubation using smaller and better-fitting facemasks but could not show any difference in leak 16.…”

Section: Discussionmentioning

confidence: 99%

Do commonly available round facemasks fit near-term and term infants?

Haase¹,

Badinska

Koos

et al. 2019

Arch Dis Child Fetal Neonatal Ed

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ObjectiveWith inappropriately large facemasks, it is more difficult to create a seal on the face, potentially leading to ineffective ventilation during neonatal stabilisation. We investigated whether commonly available round facemasks are of appropriate size by measuring facial dimensions in near-term and term infants using two-dimensional (2D) and three-dimensional (3D) images.DesignProspective single-centre observational study.SettingInfants born in our centre at 34–41 weeks’ gestation were eligible.InterventionPatients were photographed with 2D and 3D technique.Main outcome measuresDistances between nasion and gnathion were measured and compared with the outer diameter of various round facemasks.Methods2D and 3D images were performed using standard equipment. Correlations between gestational age and the above-mentioned distances were assessed using Pearson’s r.ResultsImages were taken from 102 infants with a mean (SD) gestational age of 37.9 (2.3) weeks. Mean distance between nasion and gnathion was 46.9 mm (5.1) in 2D and 49.9 mm (4.1) in 3D images, that is, on average 3 mm smaller in 2D than with 3D (p<0.01). Based on these measurements, round facemasks with an external diameter of 50 mm seemed fitting for most (61%) term infants and 42 mm masks for most (72%) near-term infants (GA 34–36 weeks).ConclusionsRound facemasks with an external diameter of 60 mm are too large for almost all newborn infants, while 42/50 mm round facemasks are well fitting. Important anatomical structures were only visible using 3D images.Clinical trial registration numberNCT03369028

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Section: Discussionmentioning

confidence: 99%

Do commonly available round facemasks fit near-term and term infants?

Haase¹,

Badinska

Koos

et al. 2019

Arch Dis Child Fetal Neonatal Ed

Self Cite

View full text Add to dashboard Cite

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“…A new, commercially available round facemask (ResusiSure, LSR Healthcare, NSW, Australia) uses suction to create a seal between the mask and the infant’s face. This suction mask (SM) reduced leak in a manikin model,3 but failed in some infants when tested in a clinical trial 4. We hypothesised that in these infants, leak around the SM allowed inspiratory flow to be diverted away from the airway opening towards the suction tubing.…”

mentioning

confidence: 99%

“…To test our hypothesis, we administered positive pressure ventilation with the SM in different positions, intentionally causing minimal and large leak. A modified baby manikin (Laerdal, Stavanger, Norway) was used3 with one flow sensor (FS1) between a Neopuff (Fisher & Paykel Healthcare, Auckland, New Zealand) and the SM and a second flow sensor (FS2) within the suction tubing (figure 1A). Positive inspiratory pressure (PIP) of 30 cmH 2 O, positive end-expiratory pressure (PEEP) of 5 cmH 2 O and flow 10 L/min were used.…”

mentioning

confidence: 99%