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Newborn self-inflating manual resuscitators: precision robotic testing of safety and reliability.
Tracy, Mark B; Halliday, Robert; Tracy, Sally K; Hinder, Murray K.
Afiliación
  • Tracy MB; Neonatal Intensive Care Unit, Westmead Hospital, Westmead, New South Wales, Australia.
  • Halliday R; Department of Paediatrics and Child Health, University of Sydney, Westmead Hospital, Westmead, New South Wales, Australia.
  • Tracy SK; Sydney Children's Hospital Network, Westmead, New South Wales, Australia.
  • Hinder MK; Midwifery and Women's Health Research Unit, University of Sydney, Royal Hospital for Women, Randwick, New South Wales, Australia.
Arch Dis Child Fetal Neonatal Ed ; 104(4): F403-F408, 2019 Jul.
Article en En | MEDLINE | ID: mdl-30337333
AIM: A controlled bench test was undertaken to determine the performance variability among a range of neonatal self-inflating bags (SIB) compliant with current International Standards Organisation (ISO). INTRODUCTION: Use of SIB to provide positive pressure ventilation during newborn resuscitation is a common emergency procedure. The United Nations programmes advocate increasing availability of SIB in low-income and middle-income nations and recommend devices compliant with ISO. No systematic study has evaluated variance in different models of neonatal SIB. METHODS: 20 models of SIB were incrementally compressed by an automated robotic device simulating the geometry and force of a human hand across a range of precise distances in a newborn lung model. Significance was calculated using analysis of variance repeated measures to determine the relationship between distance of SIB compression and delivered ventilation. A pass/fail was derived from a composite score comprising: minimum tidal volume; coefficient of variation (across all compression distances); peak pressures generated and functional compression distance. RESULTS: Ten out of the 20 models of SIB failed our testing methodology. Two models could not provide safe minimum tidal volumes (2.5-5 mL); six models exceeded safety inflation pressure limit >45 cm H2O, representing 6% of their inflations; five models had excessive coefficient of variation (>30% averaged across compression distances) and three models did not deliver inflation volumes >2.5 mL until approximately 50% of maximum bag compression distance was reached. The study also found significant intrabatch variability and forward leakage. CONCLUSION: Compliance of SIBs with ISO standards may not guarantee acceptable or safe performance to resuscitate newborn infants.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Respiración Artificial / Robótica / Insuflación / Respiración con Presión Positiva / Cuidado del Lactante Tipo de estudio: Evaluation_studies / Prognostic_studies Límite: Humans / Newborn Idioma: En Revista: Arch Dis Child Fetal Neonatal Ed Asunto de la revista: PEDIATRIA / PERINATOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Respiración Artificial / Robótica / Insuflación / Respiración con Presión Positiva / Cuidado del Lactante Tipo de estudio: Evaluation_studies / Prognostic_studies Límite: Humans / Newborn Idioma: En Revista: Arch Dis Child Fetal Neonatal Ed Asunto de la revista: PEDIATRIA / PERINATOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido