Evaluation of the interrupter technique in healthy, unsedated infants
The interrupter technique may be used to monitor respiratory resistance and does not require active patient cooperation, but has yet to be applied in unsedated, spontaneously breathing infants. The aim of this study was to determine if the interrupter technique is feasible in spontaneously breathing...
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Veröffentlicht in: | The European respiratory journal 2001-12, Vol.18 (6), p.982-988 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The interrupter technique may be used to monitor respiratory resistance and does not require active patient cooperation, but has yet to be applied in unsedated, spontaneously breathing infants. The aim of this study was to determine if the interrupter technique is feasible in spontaneously breathing infants and to investigate the influence of facemask types and analysis techniques on the interrupter resistance (Rint). Rint was measured in 14 healthy, unsedated, sleeping infants (aged 38.4 (31-56) days (mean (range)). Paired measurements were made using large volume, compliant (Mcomp) and small volume, rigid (Mrigid) facemasks. Flow and pressure were measured at the airway opening prior to- and following a brief airway occlusion (500 ms). Rint was calculated using four previously reported analysis techniques. Rint could be measured in all infants. Mcomp, independent of the analysis method significantly underestimated Rint (p |
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ISSN: | 0903-1936 1399-3003 |
DOI: | 10.1183/09031936.01.00221501 |