Abstract
A humidifier system for neonatology that functions according to the 'membrane humidification' principle was subjected to a performance test in our laboratory. Humidification and heating of the respiratory gases took place in a module consisting of a net of hollow fibres placed inside the incubator. In 18 measurement combinations flow, respiratory gas temperature, and incubator temperature were varied. At respiratory gas temperatures within the range of 33-37 degrees C the minimum international standard for the absolute air humidity in the respiratory gas was achieved or exceeded in all measurements. No controlled clinical tests regarding the importance and long term effects of different temperatures and different humidity levels in the inspiratory air are yet available for the ventilation treatment of neonates.
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Selected References
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- Boys J. E., Howells T. H. Humidification in anaesthesia. A review of the present situation. Br J Anaesth. 1972 Aug;44(8):879–886. doi: 10.1093/bja/44.8.879. [DOI] [PubMed] [Google Scholar]
- Chatburn R. L. Physiologic and methodologic issues regarding humidity therapy. J Pediatr. 1989 Mar;114(3):416–420. doi: 10.1016/s0022-3476(89)80560-8. [DOI] [PubMed] [Google Scholar]
- Dick W. Aspects of humidification: requirements and techniques. Int Anesthesiol Clin. 1974 Winter;12(4):217–239. doi: 10.1097/00004311-197412040-00013. [DOI] [PubMed] [Google Scholar]
- Forbes A. R. Humidification and mucus flow in the intubated trachea. Br J Anaesth. 1973 Aug;45(8):874–878. doi: 10.1093/bja/45.8.874. [DOI] [PubMed] [Google Scholar]
- Noguchi H., Takumi Y., Aochi O. A study of humidification in tracheostomized dogs. Br J Anaesth. 1973 Aug;45(8):844–848. doi: 10.1093/bja/45.8.844. [DOI] [PubMed] [Google Scholar]
- Tarnow-Mordi W. O., Reid E., Griffiths P., Wilkinson A. R. Low inspired gas temperature and respiratory complications in very low birth weight infants. J Pediatr. 1989 Mar;114(3):438–442. doi: 10.1016/s0022-3476(89)80567-0. [DOI] [PubMed] [Google Scholar]
- Tarnow-Mordi W. O., Sutton P., Wilkinson A. R. Inadequate humidification of respiratory gases during mechanical ventilation of the newborn. Arch Dis Child. 1986 Jul;61(7):698–700. doi: 10.1136/adc.61.7.698. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tsuda T., Noguchi H., Takumi Y., Aochi O. Optimum humidification of air administered to a tracheostomy in dogs. Scanning electron microscopy and surfactant studies. Br J Anaesth. 1977 Oct;49(10):965–977. doi: 10.1093/bja/49.10.965. [DOI] [PubMed] [Google Scholar]