Manual ventilation devices in neonatal resuscitation: Tidal volume and positive pressure-provision

An Evaluation of Peak Inspiratory Pressure, Tidal Volume, and Ventilatory Frequency During Ventilation With a Neonatal Self-Inflating Bag Resuscitator

“…17,18 The present study shows that the high variability does not seem to be an artifact due to restricted sample size, because it was still observed even with a considerably greater number of volunteers (n ϭ 172). This is in agreement with the results of Roehr et al, 25 in which high variability of PIP (2.7-58.9 cm H 2 O) and V T (1-14.6 mL) was observed in a sample of 120 volunteers during ventilation of a neonatal mannequin with a self-inflating bag.…”

“…However, some studies showed that the valve may be activated at an inconsistent, wide range of pressures, 27 frequently exceeding safe values. 25,27 In the present study, even though the pop-off valve was kept open, we observed peak pressures over 40 cm H 2 O (the activation pressure limit indicated by the manufacturer) in 52% of the cases. Kain et al 10 observed higher levels of PIP when the pop-off valve was kept closed; however, the authors tested different brands of resuscitators and found high variability in PIP and V T independently of the position of the valve (opened or closed).…”

“…While our results are in agreement with some previous reports, 6,13 some studies did not find influence of profession on ventilatory parameters delivered by the selfinflating bag. 5,11,25 Nevertheless, it is important to stress that it is difficult to compare the results of the several available studies mainly because of differences in the professional profile of the volunteers.…”

Ventilación del recién nacido: comparación entre un reanimador con pieza en t y bolsas autoinflables en un simulador de neonato prematuro

“…encontró que el volumen corriente y la PIM entregadas por profesionales médicos era mayor cuando se usaban BAI, en comparación con dispositivos con pieza en T, sin importar las variables dependientes del operador individual. 16 En un segundo estudio, Roerhs y cols. mostraron que, tanto la capacitación del operador como la experiencia específica con el dispositivo, tenían un impacto significativo en la provisión de mayor PIM y volumen corriente si usaban la BAI; esta diferencia no se verificó cuando usaban el dispositivo con pieza en T. Los mismos autores hallaron una gran variación interoperador para todos los niveles de capacitación cuando se usaba la bolsa autoinflable.…”

Resuscitation and support of transition of babies at birth

“…Unter brüsker Beatmung kann der applizierte Beatmungsdruck allerdings durchaus den vom Hersteller angegebenen Spitzendruck übersteigen [186,187]. Die Verwendung eines Systems mit T-Stück erlaubt im Gegensatz zu herkömm-lichen Beatmungsbeuteln eine bessere Kontrolle des applizierten Spitzendrucks und des Tidalvolumens, außerdem erleichtert es die Beatmung mit verlängerten Inspirationszeiten [187][188][189][190]. Allerdings ist die klinische Bedeutung dieser Beobachtungen noch nicht eindeutig klar.…”