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Research ArticleOriginal Research

Noise Exposure From High-Flow Nasal Cannula Oxygen Therapy: A Bench Study on Noise Reduction

Takamitsu Kubo, Hiroaki Nakajima, Ryo Shimoda, Tatsuya Seo, Yurie Kanno, Toshikazu Kondo and Sunao Tamai
Respiratory Care March 2018, 63 (3) 267-273; DOI: https://doi.org/10.4187/respcare.05668
Takamitsu Kubo
Medical Equipment Center, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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  • For correspondence: [email protected]
Hiroaki Nakajima
Medical Equipment Center, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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Ryo Shimoda
Medical Equipment Center, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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Tatsuya Seo
Medical Equipment Center, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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Yurie Kanno
Medical Equipment Center, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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Toshikazu Kondo
Medical Equipment Center, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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Sunao Tamai
Division of Anesthesiology, Shizuoka Cancer Center Hospital, Shizuoka Prefecture, Japan.
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Article Figures & Data

Figures

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    Fig. 1.

    Experimental setup for MaxVenturi. An exclusive circuit and a filter for noise reduction were attached on the air intake side of MaxVenturi using the oxygen cylinder, which is the driving source. The tip of the nasal cannula hung freely.

  • Fig. 2.
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    Fig. 2.

    Experimental setup for Optiflow. An exclusive circuit and a filter for noise reduction were attached on the total flow outtake side of Optiflow using the medical gas outlet for oxygen and air as the driving source. The tip of the nasal cannula hung freely.

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    Fig. 3.

    Experimental setup for AIRVO2. An oxygen flow meter and an exclusive circuit were attached to AIRVO2 using a power supply outlet (consumption of electric current was 2.4 A). The tip of the nasal cannula hung freely.

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    Fig. 4.

    Interior construction of MaxVenturi.

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    Fig. 5.

    Noise levels with and without a filter for the total flow and the oxygen concentration, respectively, on the HFNC/blender (Optiflow). All P values vs. the HFNC/Venturi without a filter (see Fig. 6). Data are mean ± SD.

  • Fig. 6.
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    Fig. 6.

    Noise levels with and without a filter for the total flow and the oxygen concentration, respectively, on the HFNC/Venturi (MaxVenturi). * vs with a filter, † vs the HFNC/blender with and without a filter (see Fig. 5), ‡ vs. FIO2 = 0.40 when the total flow was 50 L/min. Data are mean ± SD.

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    Fig. 7.

    Noise levels without a filter for the total flow and the oxygen concentration, respectively, on the HFNC/turbine (AIRVO2). § vs. the HFNC/Venturi without a filter (see Fig. 6). ¶ vs. the HFNC/Venturi with a filter. Data are mean ± SD.

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Respiratory Care: 63 (3)
Respiratory Care
Vol. 63, Issue 3
1 Mar 2018
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Noise Exposure From High-Flow Nasal Cannula Oxygen Therapy: A Bench Study on Noise Reduction
Takamitsu Kubo, Hiroaki Nakajima, Ryo Shimoda, Tatsuya Seo, Yurie Kanno, Toshikazu Kondo, Sunao Tamai
Respiratory Care Mar 2018, 63 (3) 267-273; DOI: 10.4187/respcare.05668

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Noise Exposure From High-Flow Nasal Cannula Oxygen Therapy: A Bench Study on Noise Reduction
Takamitsu Kubo, Hiroaki Nakajima, Ryo Shimoda, Tatsuya Seo, Yurie Kanno, Toshikazu Kondo, Sunao Tamai
Respiratory Care Mar 2018, 63 (3) 267-273; DOI: 10.4187/respcare.05668
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Keywords

  • high flow nasal cannula
  • optiflow
  • maxventuri
  • airvo2
  • noise
  • noise level
  • HFNC

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