{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T02:28:55Z","timestamp":1788402535462,"version":"build-2803163510"},"reference-count":30,"publisher":"Wiley","license":[{"start":{"date-parts":[[2019,4,1]],"date-time":"2019-04-01T00:00:00Z","timestamp":1554076800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Emergency Medicine International"],"published-print":{"date-parts":[[2019,4,1]]},"abstract":"<jats:p><jats:italic>Objective<\/jats:italic>. Evaluation of C-MAC PM\u00ae in combination with a standard Macintosh blade size 3 in direct and indirect laryngoscopy and D-Blade\u00ae in indirect laryngoscopy in a simulated difficult airway. Primary outcome was defined as the best view of the glottic structures. Secondary endpoints were subjective evaluation and assessment of the intubation process.<jats:italic> Methods<\/jats:italic>. Prospective monocentric, observational study on 48 adult patients without predictors for difficult laryngoscopy\/tracheal intubation undergoing orthopedic surgery. Every participant preoperatively received a cervical collar to simulate a difficult airway. Direct and indirect laryngoscopy w\/o the BURP maneuver with a standard Macintosh blade and indirect laryngoscopy w\/o the BURP maneuver using D-Blade\u00ae were performed to evaluate if blade geometry and the BURP maneuver improve the glottic view as measured by the Cormack-Lehane score.<jats:italic> Results<\/jats:italic>. Using a C-MAC PM\u00ae laryngoscope, D-Blade\u00ae yielded improved glottic views compared with the Macintosh blade used with either the direct or indirect technique. Changing from direct laryngoscopy using a Macintosh blade to indirect videolaryngoscopy using C-MAC PM\u00ae with D-Blade\u00ae improved the Cormack-Lehane score from IIb, III, or IV to I or II in 31 cases.<jats:italic> Conclusion<\/jats:italic>. The combination of C-MAC PM\u00ae and D-Blade\u00ae significantly enhances the view of the glottis compared to direct laryngoscopy with a Macintosh blade in patients with a simulated difficult airway.<jats:italic> Trial Registration Number<\/jats:italic>. This trial is registered under number <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/www.clinicaltrials.gov\/ct2\/show\/NCT03403946\">NCT03403946.<\/jats:ext-link><\/jats:p>","DOI":"10.1155\/2019\/1067473","type":"journal-article","created":{"date-parts":[[2019,4,1]],"date-time":"2019-04-01T19:31:29Z","timestamp":1554147089000},"page":"1-8","source":"Crossref","is-referenced-by-count":10,"title":["Prospective Trial to Compare Direct and Indirect Laryngoscopy Using C-MAC PM\u00ae with Macintosh Blade and D-Blade\u00ae in a Simulated Difficult Airway"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6597-9585","authenticated-orcid":true,"given":"Florian J\u00fcrgen","family":"Raimann","sequence":"first","affiliation":[{"name":"Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philipp Edmund","family":"Dietze","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6451-7381","authenticated-orcid":true,"given":"Colleen Elizabeth","family":"Cuca","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dirk","family":"Meininger","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany"},{"name":"Main-Kinzig-Clinic, 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