Humidification of Inspired Oxygen Is Increased With Pre-nasal Cannula, Compared to Intranasal Cannula.
BACKGROUND: Oxygen therapy is usually combined with a humidification device, to prevent mucosal dryness. Depending on the cannula design, oxygen can be administered pre- or intranasally (administration of oxygen in front of the nasal ostia vs cannula system inside the nasal vestibulum). The impact o...
| Publicado en: | Respiratory Care Vol. 58; no. 8; pp. 1323 - 1329 |
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| Autores principales: | , , , , |
| Formato: | pictorial tables/charts Journal Article |
| Publicado: |
Mary Ann Liebert, Inc.
Aug2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104201160&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104201160 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00201324 4GG jtl: Respiratory Care issn: 00201324 maglogo: N pubinfo: dt: Aug2013 vid: 58 iid: 8 pid: 1365 pub: Mary Ann Liebert, Inc. place: New Rochelle, New York artinfo: ui: 104201160 89292560 10.4187/respcare.02215 NLM23287016 104201160 ppf: 1323 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Humidification of Inspired Oxygen Is Increased With Pre-nasal Cannula, Compared to Intranasal Cannula. aug: au: Dellweg, Dominic Wenze, Markus Hoehn, Ekkehard Bourgund, Olaf Haidl, Peter affil: Department of Pulmonology, Intensive Care, and Sleep Medicine, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, Germany sug: subj: Nebulizers and Vaporizers Statistics and Numerical Data Oxygen Therapy Nasal Mucosa Pearson's Correlation Coefficient Post Hoc Analysis Descriptive Statistics Data Analysis Software Factor Analysis Human ab: BACKGROUND: Oxygen therapy is usually combined with a humidification device, to prevent mucosal dryness. Depending on the cannula design, oxygen can be administered pre- or intranasally (administration of oxygen in front of the nasal ostia vs cannula system inside the nasal vestibulum). The impact of cannula design on intra-nasal humidity, however, has not been investigated to date. OBJECTIVE: First, to develop a system, that samples air from the nasal cavity and analyzes the humidity of these samples. Second, to investigate nasal humidity during pre-nasal and intra-nasal oxygen application, with and without humidification. METHODS: We first developed and validated a sampling and analysis system to measure humidity from air samples. By means of this system we measured inspiratory air samples from 12 subjects who received nasal oxygen with an intra-nasal and pre-nasal cannula at different flows, with and without humidification. RESULTS: The sampling and analysis system showed good correlation to a standard hygrometer within the tested humidity range (r = 0.99, P < .001). In our subjects intranasal humidity dropped significantly, from 40.3 ± 8.7% to 35.3 ± 5.8%, 32 ± 5.6%, and 29.0 ± 6.8% at flows of 1, 2, and 3 L, respectively, when oxygen was given intra-nasally without humidification (P = .001, P < .001, and P < .001, respectively). We observed no significant change in airway humidity when oxygen was given pre-nasally without humidification. With the addition of humidification we observed no significant change in humidity at any flow, and independent of pre- or intranasal oxygen administration. CONCLUSIONS: Pre-nasal administration of dry oxygen achieves levels of intranasal humidity similar to those achieved by intranasal administration in combination with a bubble through humidifier. Pre-nasal oxygen simplifies application and may reduce therapy cost. pubtype: Academic Journal doctype: pictorial tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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