Dysphagia in tongue cancer patients before and after surgery

Journal of Oral and Maxillofacial Surgery(Zhuo-shan Huang, Wei-liang Chen, et al.)に
Dysphagia in tongue cancer patients before and after surgery」が掲載されている。

Abstract

Purpose
To define factors influencing postoperative aspiration in tongue cancer patients and to analyze the characteristics of dysphagia before and after surgery.

Methods
A total of 112 tongue cancer patients participated in the present work. Videofluoroscopic swallowing studies (VFSSs) were performed on all patients before and after surgery. A Penetration–Aspiration Scale (PAS) score ≥3 was defined as an aspiration risk. Qualitative data were collected on a frame-by-frame basis from each VFSS and analyzed.

Results
Smoking (58.14%, p<0.01), tongue resection >50% (38.71%, p<0.05), and advanced tumor stage (49.18%, p<0.01) were strong risk factors for aspiration. High incidences of inadequate tongue movement, delayed oral transit time, reduced hyoid bone elevation, poor aspiration or penetration, vallecula epiglottica, and residual material in the pyriform sinuses were evident after surgery (all p values <0.001). The PAS score was significantly higher after than before surgery. The incidence of silent aspiration increased to 6.25% postoperatively.

Conclusions
Smoking, larger tongue resection, and advanced tumor stage were strong risk factors for postoperative aspiration and dysphagic complications in tongue cancer patients. The aspiration rate was higher after surgery. Further studies should focus on the prevention and early treatment of dysphagia, especially postoperative aspiration, in tongue cancer patients.

舌癌患者の手術後の誤嚥の要因と手術前後の嚥下障害について述べている。
誤嚥の評価にはPAS(Penetration Aspiration Scale)を使用し3点以上を誤嚥としている。
喫煙と半分以上の舌切除は誤嚥のリスクが大きいとしている。
喫煙により、COPDになると誤嚥のリスクが増すことは容易に想像がつく。喫煙歴を知ることで手術の予後を予測することにつながると考えられた。

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