Evaluation of swallowing function after reconstruction surgery for orophayrngeal cancer using 320-Detector-Row Multislice CT.

2017 Fiscal Year Final Research Report

• Project/Area Number: 26462601
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Otorhinolaryngology
• Research Institution: Nagoya University
• Principal Investigator: Fujimoto Yasushi 名古屋大学, 医学系研究科, 准教授 (40344337)
• Co-Investigator(Kenkyū-buntansha): 岩野 信吾 名古屋大学, 医学系研究科, 准教授 (90335034)
• Research Collaborator: SHIMONO Mariko 名古屋大学, 医学部附属病院, 助教
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 中咽頭癌 / 嚥下障害 / 舌根後方運動 / 咽頭収縮 / 鼻咽腔閉鎖 / 機能的再建

Outline of Final Research Achievements

Treatment strategy for oropharyngeal carcinoma have been confused in this decade. We tried to examine swallowing ability and mechanism of dysphagia after treatment of oropharyngeal carcinoma by 320lines MDCT system. We opted for Gehanno method and the suturing of the posterior pharyngeal wall to the base of the tongue after radical resection of oropharyngeal lateral wall. All patients could eat an oral diet without tube feeding. We caliculated pharyngeal constrictor ratio by video-fluorography, and could find good constriction of oropharyngeal wall after our reconstruction method. We also focused on the crosswise difference and distance between the tongue base and posterior wall of oropharynx. Among the cases of chemoradiotherapy, distance between tongue base and posterior wall tend to be longer, and the area around oropharynx were wider than normal. It may cause lower pharyngeal clearance rate. We are now planning further study for evaluate superiority of our reconstruction method.

Free Research Field

耳鼻咽喉科