{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T20:22:12Z","timestamp":1779135732019,"version":"3.51.4"},"reference-count":32,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,3,15]],"date-time":"2022-03-15T00:00:00Z","timestamp":1647302400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med."],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Tracheal intubation is commonly performed after direct laryngoscopy using Macintosh laryngoscopes (MacL), but visualization of the larynx may be inadequate. The VieScope (VSC) as a new type of laryngoscope consisting of a straight, shielded, illuminated tube used to perform intubation <jats:italic>via<\/jats:italic> a bougie was investigated in this prospective randomized trial in patients without expected difficult airways.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>With ethics approval, 2 \u00d7 29 patients for elective surgery were randomized 1:1 to intubation with VSC or MacL. Endpoints were first attempt success rates (FAS), Percentage of Glottis Opening Scale (POGO), time to intubation (TTI), and difficulty ratings on visual analog scales (0\u2013100, lower values better). Data are given as mean \u00b1 standard deviation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The FAS was 83 \u00b1 38% for VSC and 86 \u00b1 34% for MacL (<jats:italic>P<\/jats:italic> = 0.723). For VSC, POGO was 86 \u00b1 17% and for MacL 68 \u00b1 30% (<jats:italic>P<\/jats:italic> = 0.007). TTI for VSC was 93 \u00b1 67s vs. 38 \u00b1 17 for MacL (<jats:italic>P<\/jats:italic> &amp;lt; 0.001). Difficulty of intubation was rated 23 \u00b1 22 for VSC vs. 18 \u00b1 22 for MacL (<jats:italic>P<\/jats:italic> = 0.422), viewing conditions 12 \u00b1 15 vs. 24 \u00b1 25 (<jats:italic>P<\/jats:italic> = 0.031), and difficulty of tube placement was rated 27 \u00b1 30 vs. 7 \u00b1 8 (<jats:italic>P<\/jats:italic> = 0.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>No difference in FAS was detected between VSC and MacL. Visualization of the larynx was superior using the VSC, while TTI was prolonged and tube placement <jats:italic>via<\/jats:italic> bougie was more challenging. The VSC could be an alternative to MacL in patients with difficult laryngoscopy, but this should be investigated further in patients with expected difficult airways.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fmed.2022.820847","type":"journal-article","created":{"date-parts":[[2022,3,15]],"date-time":"2022-03-15T06:36:28Z","timestamp":1647326188000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":14,"title":["Elective Tracheal Intubation With the VieScope\u2014A Prospective Randomized Non-inferiority Pilot Study 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