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Clinical outcomes of aspiration prevention surgeries: A retrospective study of glottic closure and laryngotracheal separation over six years Shuhei Shinohara 1,2 , Junko Tsuda 2 , Tomoyasu Yamagata 1,2 , Haruka Nakabayashi 2 , Shinpei Nagato 1 , Shiro Endo 1 , Mei Sakamoto 2 , Makoto Hashimoto 2 , Kazuma Sugahara 2 1Department of Otolaryngology, JCHO Tokuyama Central Hospital 2Department of Otolaryngology, Graduate School of Medicine, Yamaguchi University Keyword: 嚥下障害 , 誤嚥防止術 , 声門閉鎖術 , 喉頭気管分離術 pp.920-923
Published Date 2026/9/20
DOI https://doi.org/10.11477/mf.091434910980100920
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 Aspiration prevention surgery is indicated for severe dysphagia unresponsive to conservative therapy. We retrospectively reviewed nine patients who underwent glottic closure(GC, n=6) or laryngotracheal separation(LTS, n=3) at Tokuyama Central Hospital between 2019 and 2024. No severe complications occurred, and aspiration was effectively prevented in all cases. One GC patient achieved a tracheostomy tube-free state, while others required continued cannulation. LTS was selected in pediatric cases for its reversibility but was associated with secretion pooling. GC provided more reliable aspiration prevention but resulted in irreversible voice loss. Both procedures are safe and effective, and surgical choice should be tailored to patient background and family preferences.


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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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