Abstract
Objective To explore the effects of different surgical treatments on swallowing function in partial laryngectomy patients and to analyze the development trend of swallowing function. Methods From January 2019 to September 2019, this study selected 54 patients first diagnosed as laryngeal carcinoma with partial laryngectomy at a ClassⅢ Grade A hospital as subjects by convenience sampling. There were 25 patients with vertical partial laryngectomy (vertical group) , 12 patients with horizontal supra-glottic partial laryngectomy (horizontal group) and 17 patients with supra-cricoid partial laryngectomy (SCPL group) . This study observed the time of gastric tube extubation of patients, video-fluoroscopic swallowing study (VFSS) 15 days after surgery, score of Modified Penetration Aspiration Scale (MPAS) and scores of Gugging Swallowing Screen (GUSS) 15, 20 and 30 days after surgery, and compared the swallowing function of patients among three groups. Results There were statistical differences in the time of gastric tube extubation, scores of GUSS and VFSS+MPAS 15 days after surgery among three groups (P<0.01) . When taking time as main effect, the Roy maximum root test displayed F=460.693, P<0.001 which showed that time had influence on the score of GUSS; when taking surgery as the main effect, the Roy maximum root test displayed F=218.387, P<0.001 which showed that surgery type had influence on the score of GUSS. There were statistical differences in the development trends of swallowing at different times among three surgery types when time interacted with the surgery type (F=164.033, P<0.001) . Conclusions The vertical partial laryngectomy has the small impact on swallowing function and patients recovery quickly. However, horizontal supra-glottic partial laryngectomy and SCPL have great impact on swallowing function; swallowing function can't be well compensated by sphincter function of remnant larynx in a short time; besides, patients with horizontal supra-glottic partial laryngectomy need a long rehabilitation period. Key words: Laryngeal neoplasms; Partial laryngectomy; Deglutition disorders
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