{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T13:18:07Z","timestamp":1789391887125,"version":"build-2803163510"},"reference-count":27,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2024,7,12]],"date-time":"2024-07-12T00:00:00Z","timestamp":1720742400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Laryngoscope"],"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:sec><jats:title>Objective(s)<\/jats:title><jats:p>Treatment for Zenker's diverticulum and cricopharyngeal dysfunction has evolved to include flexible endoscopic approaches. Currently, no flexible modalities combine the precision cutting of CO<jats:sub>2<\/jats:sub> laser and the hemostasis of knife electrocautery. We present the first series describing fiber\u2010based 445nm blue light (BL) laser for endoscopic cricopharyngeal myotomy\/Zenker's diverticulotomy. We describe usage characteristics and laser parameters with rigid esophagoscopy to determine the feasibility of use with flexible endoscopy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Retrospective review and literature review.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The first nine cases of endoscopic diverticulotomy (n\u2009=\u20095) and cricopharyngeal myotomy (n\u2009=\u20094) with BL were reviewed. Rigid exposure was achieved with the Dohlman Slimline diverticuloscope. Mean age was 75.6\u2009years. Average diverticulum depth was 0.89\u2009cm \u00b11.0\u2009cm. Pulsed mode was used in seven cases with mean of 6.86\u2009W, 54 ms pulse on, and 286 ms pulse pause and overall mean of 6.00\u2009W and 405\u2009J. Complete myotomy with intact buccopharyngeal fascia and without bleeding limiting view was achieved in all patients. One of two patients in whom continuous wave setting was used developed subcutaneous emphysema following vigorous cough on POD0; this resolved after 7\u2009days nothing per oral (NPO). Eight patients were started on oral intake without evidence for leak. Pulsed mode with fiber\u2010to\u2010tissue contact provided effective muscle cutting without disruption of buccopharyngeal fascia. Literature review yielded three articles examining flexible approach with laser for Zenker's and none with BL.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>BL provides safe and effective fiber\u2010based cutting and hemostasis in endoscopic cricopharyngeal myotomy\/Zenker's diverticulotomy. Future use in flexible endoscopic approaches appears feasible, though continuous wave should be avoided.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>4 <jats:italic>Laryngoscope<\/jats:italic>, 134:4620\u20134624, 2024<\/jats:p><\/jats:sec>","DOI":"10.1002\/lary.31632","type":"journal-article","created":{"date-parts":[[2024,7,12]],"date-time":"2024-07-12T12:15:38Z","timestamp":1720786538000},"page":"4620-4624","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["445nm Blue Laser for Cricopharyngeal Myotomy\/Zenker's Diverticulotomy: Proof of Concept and Use"],"prefix":"10.1002","volume":"134","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5703-3706","authenticated-orcid":false,"given":"Kevin","family":"Tie","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery Harvard Medical School  Boston Massachusetts U.S.A."},{"name":"Division of 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