Increased Bolus Volume Effect on Delayed Pharyngeal Swallowing Response in Post-stroke Oropharyngeal Dysphagia: A Pilot Study.
	    		
		   		
		   			
		   		
	    	
    	 
    	10.5535/arm.2016.40.6.1018
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Jin Woo PARK
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Gyu Jeong SIM
			        		
			        		;
		        		
		        		
		        		
			        		Dong Chan YANG
			        		
			        		;
		        		
		        		
		        		
			        		Kyoung Hwan LEE
			        		
			        		;
		        		
		        		
		        		
			        		Ji Hea CHANG
			        		
			        		;
		        		
		        		
		        		
			        		Ki Yeun NAM
			        		
			        		;
		        		
		        		
		        		
			        		Ho Jun LEE
			        		
			        		;
		        		
		        		
		        		
			        		Bum Sun KWON
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Physical Medicine and Rehabilitation, Dongguk University Ilsan Hospital, Goyang, Korea. skjoct09@gmail.com
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Deglutition disorders;
			        		
			        		
			        		
				        		Stroke;
			        		
			        		
			        		
				        		Reaction time;
			        		
			        		
			        		
				        		Respiratory aspiration;
			        		
			        		
			        		
				        		Fluoroscopy
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Barium;
				        		
			        		
				        		
					        		Deglutition Disorders*;
				        		
			        		
				        		
					        		Deglutition*;
				        		
			        		
				        		
					        		Fluoroscopy;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Pilot Projects*;
				        		
			        		
				        		
					        		Reaction Time;
				        		
			        		
				        		
					        		Respiratory Aspiration;
				        		
			        		
				        		
					        		Stroke;
				        		
			        		
				        		
					        		Swallows;
				        		
			        		
				        		
					        		Water
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Annals of Rehabilitation Medicine
	            		
	            		 2016;40(6):1018-1023
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	OBJECTIVE: To confirm a relationship between the pharyngeal response and bolus volume, and examine whether increasing the fluid bolus volume can improve penetration and aspiration for stroke dysphagic patients. METHODS: Ten stroke patients with a delayed pharyngeal response problem confirmed by a videofluoroscopic swallowing study (VFSS) were enrolled. Each subject completed two swallows each of 2 mL, 5 mL, and 10 mL of barium liquid thinned with water. The pharyngeal delay time (PDT) and penetration-aspiration scale (PAS) were measured and the changes among the different volumes were analyzed. RESULTS: PDTs were shortened significantly when 5 mL and 10 mL of thin barium were swallowed compared to 2 mL. However, there was no significant difference in PAS as the bolus volume increased. CONCLUSION: The increased fluid bolus volume reduced the pharyngeal delay time, but did not affect the penetration and aspiration status.