التفاصيل البيبلوغرافية
| العنوان: |
Variety of Expiratory Resistance Between Different Continuous Positive Airway Pressure Devices for Preterm Infants. |
| المؤلفون: |
Wald, Martin1 martin.wald@meduniwien.ac.at, Kribs, Angela2, Jeitler, Valerie1, Lirsch, Dominik1, Pollak, Arnold1, Kirchner, Lieselotte1 |
| المصدر: |
Artificial Organs. Jan2011, Vol. 35 Issue 1, p22-28. 7p. 1 Diagram, 1 Chart, 1 Graph. |
| مصطلحات موضوعية: |
*AIRWAY (Anatomy), *PREMATURE infants, *CONTINUOUS positive airway pressure, *MECHANICAL ventilators, *BREATHING apparatus, *AIR pressure, *EQUIPMENT & supplies |
| مستخلص: |
Continuous positive airway pressure (CPAP) systems for preterm infants work with conventional ventilators or use a jet ventilation system. It is assumed that the most important advantage of jet-CPAP systems is a lower expiratory resistance ( R). We investigated the R of seven different CPAP systems. We studied two primary-care CPAP systems, three jet-CPAP generators, and two conventional CPAP devices. All devices were adjusted at 6 mbar and connected with a test lung simulating a standardized expiration volume. Maximum pressure increase during expiration was measured and maximum R was calculated. In primary-care CPAP devices, the maximum R of the Benveniste valve was 9.7 mbar/L/s (SD 1.2) while that of the Neopuff was 102.8 mbar/L/s (SD 7.9) ( P < 0.01). In jet-CPAP devices, the R of the Infant Flow was 6.8 mbar/L/s (SD 1.7), the one of the Medijet REF 1000 was 43.5 mbar/L/s (SD 1.5), and that of the Medijet REF 1010 was 36.7 mbar/L/s (SD 0.3) (P < 0.01). In conventional CPAP systems, the R of the Baby Flow was 29.7 mbar/L/s (SD 1.1) and that of the Bubble CPAP was 37.1 mbar/L/s (SD 4.3) ( P < 0.01). All CPAP devices created an R. Jet-CPAP devices did not produce lower R than conventional CPAP devices. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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