Temporal and sequential analysis of dysphagia after infratentorial stroke and its association with penetra-tion and aspiration
10.3969/j.issn.1001-1242.2025.03.003
- VernacularTitle:幕下脑卒中后吞咽障碍的时序性及其与渗漏误吸的关联分析
- Author:
Meng DAI
1
;
Xiangxiang ZHANG
;
Huayu CHEN
Author Information
1. 中山大学附属第三医院康复医学科,广州市,510630
- Publication Type:Journal Article
- Keywords:
stroke;
dysphagia;
videofluoroscopic swallowing study;
temporal analysis;
aspiration
- From:
Chinese Journal of Rehabilitation Medicine
2025;40(3):336-342
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To elucidate the temporal characteristics of dysphagia following infratentorial stroke and its associa-tion with penetration/aspiration.Method:A total of 51 patients with infratentorial stroke and 26 healthy controls were recruited.All partici-pants underwent videofluoroscopic swallowing studies(VFSS),during which they swallowed 5ml of thin liquid in two separate trials.Swallowing parameters analyzed included oral transit time(OTT),velopharyngeal clo-sure duration(VCD),hyoid movement duration(HMD),laryngeal vestibule closure duration(LCD),upper esophageal sphincter(UES)opening duration(UOD),and stage transition duration(STD).The temporal coor-dination and sequential order of four swallowing actions and the intervals namely T1-T4 were also assessed.Inter-rater variability was evaluated using intraclass correlation coefficients(ICCs)for 20％of the results.Result:In the patient group,40.2％exhibited failed opening in UES,39.3％had penetration,and 20.5％ex-perienced aspiration.Compared to the control group,patients showed significantly prolonged OTT,VCD,and STD(P＜0.01),while UOD was significantly shorter(P＜0.01).The conformity rates of temporal sequences 3 and 4 were significantly lower in the patient group compared to controls(P＜0.001),and intervals Tl,T2,and T3 were significantly longer(P＜0.01).Significant negative correlations were found between VCD and PAS,UOD and PAS,and T2(P＜0.01).All measured parameters demonstrated good reliability.Conclusion:Patients with infratentorial stroke experience abnormal swallowing sequence,which is associated with the severity of penetration and aspiration.These findings may help in developing more targeted interven-tions to prevent aspiration.
