{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T23:18:51Z","timestamp":1783120731069,"version":"3.54.6"},"reference-count":19,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2011,10,14]],"date-time":"2011-10-14T00:00:00Z","timestamp":1318550400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta Anaesthesiol Scand"],"published-print":{"date-parts":[[2012,2]]},"abstract":"Background<\/jats:title>Modern video laryngoscopes (VLSs<\/jats:styled-content>) provide a superior view of the glottis, facilitating easier intubations. This study evaluates the forces applied to the maxillary incisors when using various VLSs<\/jats:styled-content> and a M<\/jats:styled-content>acintosh blade.<\/jats:p><\/jats:sec>Methods<\/jats:title>Fifty consecutive surgery patients were randomly assigned to receive laryngoscopy from a pair of four blades investigated in the study \u2013 the VLS<\/jats:styled-content> GlideScope<\/jats:styled-content>\u00ae<\/jats:sup> (Verathon Inc., Bothell, WA, USA), V\u2010Mac<\/jats:styled-content>\u2122 S<\/jats:styled-content>torz\u00ae<\/jats:sup> (Karl Storz, Tuttlingen, Germany), and McGrath<\/jats:styled-content>\u2122 (Aircraft Medical, Edinburgh, United Kingdom); and the classic M<\/jats:styled-content>acintosh blade also from S<\/jats:styled-content>torz\u00ae<\/jats:sup> (Karl Storz). An endotracheal tube (ETT<\/jats:styled-content>) was brought into position anterior to the vocal cords, with actual intubation carried out only with the second of the laryngoscopes. Sensors measured the forces directly applied to the patient's maxillary incisors while inserting the ETT<\/jats:styled-content>. Other common metrics of intubation difficulty (e.g. M<\/jats:styled-content>allampati grade, C<\/jats:styled-content>ormack\u2013L<\/jats:styled-content>ehane grade, and time) were also recorded.<\/jats:p><\/jats:sec>Results<\/jats:title>Only one patient was not intubated within the standard study parameters and was converted to the hospital protocols for difficult intubations. The forces applied to the maxillary incisors were significantly greater with the M<\/jats:styled-content>acintosh blade compared with all VLSs<\/jats:styled-content>. There were no differences between the VLSs<\/jats:styled-content> with regard to the forces. Patient characteristics, including M<\/jats:styled-content>allampati grade, were not predictive of the forces applied.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>All VLSs<\/jats:styled-content> considered were safer for the patient than was the M<\/jats:styled-content>acintosh blade in terms of the forces applied to the maxillary teeth, time, number of insertion attempts, and view achieved of the glottic arch. There is a small, but significant, difference in the time and number of insertion attempts required during laryngoscopy with the different VLSs<\/jats:styled-content>. There was no difference in the forces applied. The geometry of the respective blades may be an important component in the ease of laryngoscopy.<\/jats:p><\/jats:sec>","DOI":"10.1111\/j.1399-6576.2011.02541.x","type":"journal-article","created":{"date-parts":[[2011,10,14]],"date-time":"2011-10-14T14:50:18Z","timestamp":1318603818000},"page":"224-229","source":"Crossref","is-referenced-by-count":43,"title":["Forces applied to the maxillary incisors by video laryngoscopes and the M<\/scp>acintosh laryngoscope"],"prefix":"10.1111","volume":"56","author":[{"given":"R. A.","family":"LEE","sequence":"first","affiliation":[{"name":"Department of Biomechanical Engineering Delft University of Technology Delft The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. A. J.","family":"VAN ZUNDERT","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Intensive Care, and Pain Therapy Catharina Hospital \u2013 Brabant Medical School Eindhoven The Netherlands"},{"name":"Department of Anesthesiology Faculty of Medicine University Ghent Hospital Ghent Belgium"},{"name":"Department of Anesthesiology University of Maastricht Hospital Maastricht The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. L. J. G.","family":"MAASSEN","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Intensive Care, and Pain Therapy Catharina Hospital \u2013 Brabant Medical School Eindhoven The Netherlands"},{"name":"Department of Anesthesiology University of Maastricht Hospital Maastricht The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P. A.","family":"WIERINGA","sequence":"additional","affiliation":[{"name":"Department of Biomechanical Engineering Delft University of Technology Delft The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,10,14]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF03027728"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF03022777"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1213\/ane.0b013e31818d1904"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinane.2003.06.004"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/00000542-199905000-00013"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1213\/ANE.0b013e3181b7303a"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1213\/ane.0b013e3181ae39db"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1213\/00000539-199611000-00048"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF03017948"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF03011357"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00540-009-0780-1"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinane.2007.02.007"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF03021900"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0265021506002067"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-6576.2007.01450.x"},{"key":"e_1_2_6_17_1","first-page":"451","article-title":"The clinical assessment of Glidescope in orotracheal intubation under general anesthesia","volume":"73","author":"Xue FS","year":"2007","journal-title":"Minerva Anestesiol"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-6576.2009.02119.x"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-6576.2009.02094.x"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2044.1994.tb04358.x"}],"container-title":["Acta Anaesthesiologica Scandinavica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1399-6576.2011.02541.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1399-6576.2011.02541.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,23]],"date-time":"2023-09-23T15:39:27Z","timestamp":1695483567000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1399-6576.2011.02541.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,10,14]]},"references-count":19,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2012,2]]}},"alternative-id":["10.1111\/j.1399-6576.2011.02541.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1399-6576.2011.02541.x","archive":["Portico"],"relation":{},"ISSN":["0001-5172","1399-6576"],"issn-type":[{"value":"0001-5172","type":"print"},{"value":"1399-6576","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,10,14]]}}}