{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T18:54:41Z","timestamp":1779908081107,"version":"3.53.1"},"reference-count":33,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,7,3]],"date-time":"2022-07-03T00:00:00Z","timestamp":1656806400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["18K15923"],"award-info":[{"award-number":["18K15923"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["21K07217"],"award-info":[{"award-number":["21K07217"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004823","name":"Nagoya University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004823","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Respirology"],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and objective<\/jats:title><jats:p>Bronchoscopy is an airborne particle\u2010generating procedure. However, few methods for safe bronchoscopy have been developed. To reduce airborne particles during bronchoscopy, we created an \u2018e\u2010mask\u2019, which is a simple, disposable mask for patients. Our objective was to evaluate the e\u2010mask's protective ability against airborne particles and to assess respiratory adverse events and complications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients with stage 2\u20134 chronic obstructive pulmonary disease were excluded. We performed visualization and quantifying experiments on airborne particles with and without the e\u2010mask. We prospectively evaluated whether wearing the e\u2010mask during bronchoscopy was associated with the incidence of patients requiring &gt;5\u2009L\/min oxygen to maintain &gt;90% oxygen saturation, and patients with &gt;45\u2009mm Hg end\u2010tidal carbon dioxide (EtCO<jats:sub>2<\/jats:sub>) elevation, in addition to complications, compared to historical controls.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In the visualization experiment, more than ten thousand times of airborne particles were generated without the e\u2010mask than with the e\u2010mask. The volume of airborne particles was significantly reduced with the e\u2010mask, compared to that without the e\u2010mask (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.011). Multivariate logistic regression analysis revealed that wearing the e\u2010mask had no significant effect on the incidence of patients requiring &gt;5\u2009L\/min oxygen to maintain &gt;90% oxygen saturation, (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.959); however, wearing the e\u2010mask was a significant factor in &gt;45\u2009mm Hg EtCO<jats:sub>2<\/jats:sub> elevation (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.026). No significant differences in complications were observed between the e\u2010mask and control groups (5.8% vs. 2.5%, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.395).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Wearing the e\u2010mask during bronchoscopy significantly reduced the generation of airborne particles during bronchoscopy without increasing complications.<\/jats:p><\/jats:sec>","DOI":"10.1111\/resp.14321","type":"journal-article","created":{"date-parts":[[2022,7,4]],"date-time":"2022-07-04T02:00:31Z","timestamp":1656900031000},"page":"863-873","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Prevention of droplet dispersal with \u2018e\u2010mask\u2019: A new daily use endoscopic mask during bronchoscopy"],"prefix":"10.1111","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1108-1574","authenticated-orcid":false,"given":"Takayasu","family":"Ito","sequence":"first","affiliation":[{"name":"Department of Respiratory Medicine Nagoya University Graduate School of Medicine  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1869-7953","authenticated-orcid":false,"given":"Shotaro","family":"Okachi","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine Nagoya University Graduate School of Medicine  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3025-088X","authenticated-orcid":false,"given":"Kazuhide","family":"Sato","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine Nagoya University Graduate School of Medicine  Nagoya Japan"},{"name":"Advanced Analytical and Diagnostic Imaging Center (AADIC)\/Medical Engineering Unit (MEU), B3 Unit Nagoya University Institute for Advanced Research  Nagoya Japan"},{"name":"FOREST\u2010Souhatsu, CREST, JST  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hirotoshi","family":"Yasui","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine Nagoya University Graduate School of Medicine  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0206-0256","authenticated-orcid":false,"given":"Noriaki","family":"Fukatsu","sequence":"additional","affiliation":[{"name":"Advanced Analytical and Diagnostic Imaging Center (AADIC)\/Medical Engineering Unit (MEU), B3 Unit Nagoya University Institute for Advanced Research  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masahiko","family":"Ando","sequence":"additional","affiliation":[{"name":"Center for Advanced Medicine and Clinical Research Nagoya University Hospital  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toyofumi Fengshi","family":"Chen\u2010Yoshikawa","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery Nagoya University Graduate School of Medicine  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7364-5115","authenticated-orcid":false,"given":"Hideo","family":"Saka","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine Matsunami General Hospital  Hashima\u2010gun Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,7,3]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa2001017"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2020.12839"},{"key":"e_1_2_10_4_1","volume-title":"Aerosol\u2010generating procedures and risk of transmission of acute respiratory 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