DOES DUAL-TASKING, SWALLOW PERFORMANCE AND ATTENTION, INFLUENCE DYSPHAGIA IN PARKINSON DISEASE?

Abstract

The primary purpose of this study was to investigate the effect of dual-tasking on swallowing performance and attention in patients with Parkinson Disease (PD). Twenty six participants were included, thirteen patients with PD and thirteen controls matched by age and education. All subjects were evaluated at single swallowing task and attentional dual-tasking. Swallowing parameters were analyzed by using Fiberoptic Endoscopic Evaluation Swallowing Safety Study (FEESS). The attentional dual-tasking was realized using an adaptation of “Stroop color test” on video. Images about swallowing parameters in both conditions were analyzed by three experienced evaluators using literature definitions. Both groups underwent cognitive screening using MoCA. Although significant difference between swallowing parameters in both conditions were not found, in PD group there was an association between changes in parameters according to graduation and cognitive performance. The results show the dual-tasking influence worsening in PD patients with low scores on cognitive screening and low graduation. The results suggest more attention to PD patients that have worse cognitive status and / or low levels of education as the worsening of dysphagia and aspiration risk in performing dual-tasks to feed themselves.