Abstract:
OBJECTIVE:To assess noise exposure during noninvasive ventilation (NIV) with different types of interface (helmet, nasal, and facial masks). SUBJECTS AND METHODS:Ten "naive" healthy volunteers underwent NIV at pressure support levels of 10 and 15 cmH2O with: (a) helmet, (b) helmet equipped with HME filters at the junctions between the helmet and the inspiratory and expiratory branches of the respiratory circuit, (c) nasal mask, and (d) facial mask. Noise intensity was assessed with a sound level meter by placing a microphone near the right ear. Noise intensity and degree of discomfort were also assessed subjectively with a visual analogue scale. RESULTS:Inside the helmet noise exceeded 100 dB. Noise intensity was poorly affected by pressure support level and unaffected by the presence of HME filters. During NIV with nasal or facial masks the noise did not exceed 70 dB (i.e., noise was not louder than the usual noise background in ICU). Subjective evaluation of noise intensity mirrored objective measurements; however, the presence of HME filters was associated with the feeling of less noise inside the helmet. The discomfort associated with the helmet did not significantly differ from that associated with the masks. CONCLUSIONS:NIV helmet is associated with significantly greater noise than nasal and facial masks, but is as comfortable as masks, at least in the short term. Medium- and long-term exposure to loud noise may potentially impair ear function and increase the patient's discomfort.
journal_name
Intensive Care Medjournal_title
Intensive care medicineauthors
Cavaliere F,Conti G,Costa R,Proietti R,Sciuto A,Masieri Sdoi
10.1007/s00134-004-2347-9keywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
1755-60issue
9eissn
0342-4642issn
1432-1238journal_volume
30pub_type
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pub_type: 杂志文章,meta分析
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pub_type: 杂志文章
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更新日期:2011-07-01 00:00:00
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journal_title:Intensive care medicine
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-03-01 00:00:00
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更新日期:2000-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:2010-11-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2019-02-01 00:00:00
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更新日期:2017-06-01 00:00:00
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journal_title:Intensive care medicine
pub_type: 杂志文章
doi:10.1007/BF00262905
更新日期:1988-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:1984-01-01 00:00:00
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更新日期:2015-10-01 00:00:00
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更新日期:2000-03-01 00:00:00
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更新日期:2001-02-01 00:00:00
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更新日期:2009-01-01 00:00:00
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更新日期:2006-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2006-11-01 00:00:00
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pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2011-05-01 00:00:00
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更新日期:1997-02-01 00:00:00
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更新日期:2000-09-01 00:00:00
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更新日期:2000-07-01 00:00:00
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更新日期:1984-01-01 00:00:00
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