Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices.
The patients' inhalation flow pattern is one of the significant determinants for clinical performance of inhalation therapy. However, the development of inhalation flow meters for various inhalation devices has been unable to keep up with the increasing number of newly launched inhalation devic...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2018-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5819805?pdf=render |
| _version_ | 1818469047287676928 |
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| author | Daiki Hira Hiroyoshi Koide Shigemi Nakamura Toyoko Okada Kazunori Ishizeki Masafumi Yamaguchi Setsuko Koshiyama Tetsuya Oguma Kayoko Ito Saori Funayama Yuko Komase Shin-Ya Morita Kohshi Nishiguchi Yasutaka Nakano Tomohiro Terada |
| author_facet | Daiki Hira Hiroyoshi Koide Shigemi Nakamura Toyoko Okada Kazunori Ishizeki Masafumi Yamaguchi Setsuko Koshiyama Tetsuya Oguma Kayoko Ito Saori Funayama Yuko Komase Shin-Ya Morita Kohshi Nishiguchi Yasutaka Nakano Tomohiro Terada |
| author_sort | Daiki Hira |
| collection | DOAJ |
| description | The patients' inhalation flow pattern is one of the significant determinants for clinical performance of inhalation therapy. However, the development of inhalation flow meters for various inhalation devices has been unable to keep up with the increasing number of newly launched inhalation devices. In the present study, we developed simple attachment orifices for the inhalation flow pattern monitoring system, which are suitable for all commercial inhalers, and investigated the efficacy of the system on the clinical inhalation instruction for patients co-prescribed dry powder inhaler (DPI) and soft mist inhaler (SMI). First, we constructed simple attachment orifices that were adjusted for 13 commercial inhalers, and examined the correlation between orifice and inhalation device. Second, the inhalation flow patterns (peak inspiratory flow rate, PIFR; inhalation duration time, DT) of patients prescribed a combination of DPI and SMI were monitored before and after inhalation instruction. The inhalation resistance of commercial inhalers are listed in the following order; Twincaps® > Handihaler® > Swinghaler® = Clickhaler® > Twisthaler® > Turbuhaler® > Jenuair® > Diskus® = Ellipta® > Diskhaler® > Breezhaler® > Respimat® = pMDI. The pressure drop via orifice was significantly correlated with that via the commercial inhaler. For the confirmation, all participants achieved the DPI criterion of PIFR. On the other hand, 4 participants (6 clinical visits) of 10 experimented participants could not achieve the essential criterion of DT (> 1.5 sec) for SMI, but all participants improved their duration time after inhalation instruction by pharmacists (P<0.05). In the present study, we successfully developed simple attachment orifice suitable for 13 commercial inhalation devices. These data suggested that our simple attachment orifices for the inhalation flow pattern monitoring system can detect patients with inadequate inhalation patterns via SMI. |
| first_indexed | 2024-04-13T21:18:54Z |
| format | Article |
| id | doaj.art-b950aecea15446d7b939b38572e68b8d |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-13T21:18:54Z |
| publishDate | 2018-01-01 |
| publisher | Public Library of Science (PLoS) |
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| series | PLoS ONE |
| spelling | doaj.art-b950aecea15446d7b939b38572e68b8d2022-12-22T02:29:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01132e019308210.1371/journal.pone.0193082Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices.Daiki HiraHiroyoshi KoideShigemi NakamuraToyoko OkadaKazunori IshizekiMasafumi YamaguchiSetsuko KoshiyamaTetsuya OgumaKayoko ItoSaori FunayamaYuko KomaseShin-Ya MoritaKohshi NishiguchiYasutaka NakanoTomohiro TeradaThe patients' inhalation flow pattern is one of the significant determinants for clinical performance of inhalation therapy. However, the development of inhalation flow meters for various inhalation devices has been unable to keep up with the increasing number of newly launched inhalation devices. In the present study, we developed simple attachment orifices for the inhalation flow pattern monitoring system, which are suitable for all commercial inhalers, and investigated the efficacy of the system on the clinical inhalation instruction for patients co-prescribed dry powder inhaler (DPI) and soft mist inhaler (SMI). First, we constructed simple attachment orifices that were adjusted for 13 commercial inhalers, and examined the correlation between orifice and inhalation device. Second, the inhalation flow patterns (peak inspiratory flow rate, PIFR; inhalation duration time, DT) of patients prescribed a combination of DPI and SMI were monitored before and after inhalation instruction. The inhalation resistance of commercial inhalers are listed in the following order; Twincaps® > Handihaler® > Swinghaler® = Clickhaler® > Twisthaler® > Turbuhaler® > Jenuair® > Diskus® = Ellipta® > Diskhaler® > Breezhaler® > Respimat® = pMDI. The pressure drop via orifice was significantly correlated with that via the commercial inhaler. For the confirmation, all participants achieved the DPI criterion of PIFR. On the other hand, 4 participants (6 clinical visits) of 10 experimented participants could not achieve the essential criterion of DT (> 1.5 sec) for SMI, but all participants improved their duration time after inhalation instruction by pharmacists (P<0.05). In the present study, we successfully developed simple attachment orifice suitable for 13 commercial inhalation devices. These data suggested that our simple attachment orifices for the inhalation flow pattern monitoring system can detect patients with inadequate inhalation patterns via SMI.http://europepmc.org/articles/PMC5819805?pdf=render |
| spellingShingle | Daiki Hira Hiroyoshi Koide Shigemi Nakamura Toyoko Okada Kazunori Ishizeki Masafumi Yamaguchi Setsuko Koshiyama Tetsuya Oguma Kayoko Ito Saori Funayama Yuko Komase Shin-Ya Morita Kohshi Nishiguchi Yasutaka Nakano Tomohiro Terada Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. PLoS ONE |
| title | Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. |
| title_full | Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. |
| title_fullStr | Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. |
| title_full_unstemmed | Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. |
| title_short | Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. |
| title_sort | assessment of inhalation flow patterns of soft mist inhaler co prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices |
| url | http://europepmc.org/articles/PMC5819805?pdf=render |
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