Humidification Performance of Passive and Active Humidification Devices Within a Spontaneously Breathing Tracheostomized Cohort.
BACKGROUND: Most heat-and-moisture exchangers (HMEs) for patients with tracheostomy and spontaneously breathing are small and have suction ports that allow some expiratory gas to escape, which loses vapor held in the expired gas. Recently, a heated-and-humidified high-flow system for spontaneously b...
| Publicado en: | Respiratory Care Vol. 64; no. 2; pp. 130 - 136 |
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| Autores principales: | , , , , , |
| Formato: | CEU pictorial research tables/charts Journal Article |
| Publicado: |
Mary Ann Liebert, Inc.
Feb2019
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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=134551672&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 134551672 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00201324 4GG jtl: Respiratory Care issn: 00201324 maglogo: N pubinfo: dt: Feb2019 vid: 64 iid: 2 pid: 1365 pub: Mary Ann Liebert, Inc. place: New Rochelle, New York artinfo: ui: 134551672 134551672 134551672 10.4187/respcare.06294 134551672 ppf: 130 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Humidification Performance of Passive and Active Humidification Devices Within a Spontaneously Breathing Tracheostomized Cohort. aug: au: Nobuto Nakanishi Jun Oto Taiga Itagaki Emiko Nakataki Mutsuo Onodera Masaji Nishimura affil: Emergency and Critical Care Medicine, Tokushima University Hospital, Tokushima, Japan sug: subj: Tracheostomy Humidity Equipment and Supplies Respiration, Artificial Methods Humidity Evaluation Human Male Female Middle Age Aged Aged, 80 and Over Japan Education, Continuing (Credit) Crossover Design Comparative Studies Descriptive Statistics One-Way Analysis of Variance Data Analysis Software Friedman Test Post Hoc Analysis Two-Tailed Test Oxygenation Temperature Capnography Respiratory Failure Heart Arrest Intubation, Intratracheal Tidal Volume APACHE (Acute Physiology and Chronic Health Evaluation) Clinical Assessment Tools Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: BACKGROUND: Most heat-and-moisture exchangers (HMEs) for patients with tracheostomy and spontaneously breathing are small and have suction ports that allow some expiratory gas to escape, which loses vapor held in the expired gas. Recently, a heated-and-humidified high-flow system for spontaneously breathing patients with tracheostomy was developed. Little is known, however, about the humidifying performance of HMEs or heated-and-humidified high-flow systems for spontaneous breathing patients with a tracheostomy. OBJECTIVE: To investigate the humidifying performance of the HMEs and heated-and-humidified high-flow systems for spontaneously breathing patients with tracheostomy. METHODS: Adult spontaneously breathing subjects with tracheostomy and were enrolled when their respiratory parameters and ... were stable. We measured absolute humidity, relative humidity, and temperature by using a capacitance-type moisture sensor at the outlet of the tracheostomy tube. Heated-and-humidified high flow was delivered via the a humidifier and tracheostomy interface, and a selected HME. The subjects received heated-and-humidified high flow, after which an HME was used for humidification before switching back to a heated-and-humidified high-flow system. RESULTS: Ten subjects (5 men, 5 women; mean ± SD age, 72 ± 12 y) were enrolled. The admission diagnoses were neurologic (5 subjects), respiratory failure (3), and cardiac arrest (2). The APACHE (Acute Physiology and Chronic Health Evaluation) II score was 24 (interquartile range, 20-27). Tracheostomy was performed on day 7 (interquartile range, 5-11 d) after endotracheal intubation, and the duration of mechanical ventilation was 10 d (interquartile range, 6-11 d). The temperature with the HME was 29.9 ± 1.0°C and, during heated-and-humidified high-flow use was 35.3 ± 0.8°C (P < .001). With both the HME and the heated-and-humidified high-flow system, the relative humidity reached 100%; the absolute humidity with HME was 30.2 ± 1.8 mg/L, and, with the heated-and-humidified high-flow system, was 40.3 ± 1.8 mg/L (P < .001). CONCLUSIONS: In spontaneously breathing subjects with tracheostomy, an heated-and-humidified high-flow system achieved higher absolute humidity than did an HME. pubtype: Academic Journal doctype: CEU pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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