Impact of Device Evolution in Transcatheter Closure of Patent Ductus Arteriosus Using Duct-Occlud Coils: Comparison of Mid-term Results.
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Myung Kwan KIM
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Dong Ki HAN
			        		
			        		;
		        		
		        		
		        		
			        		Jae Young CHOI
			        		
			        		;
		        		
		        		
		        		
			        		Yuria KIM
			        		
			        		;
		        		
		        		
		        		
			        		Byung Won YOO
			        		
			        		;
		        		
		        		
		        		
			        		Deok Young CHOI
			        		
			        		;
		        		
		        		
		        		
			        		Jun Hee SUL
			        		
			        		;
		        		
		        		
		        		
			        		Sung Kue LEE
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Division of Pediatric Cardiology, Yonsei Cardiovascular Center, Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea. cjy0122@yumc.yonsei.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Patent ductus arteriosus;
			        		
			        		
			        		
				        		Transcatheter occlusion;
			        		
			        		
			        		
				        		Duct-Occlud
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Ductus Arteriosus, Patent*;
				        		
			        		
				        		
					        		Follow-Up Studies;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Physical Examination
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Korean Journal of Pediatrics
	            		
	            		 2005;48(2):158-164
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	PURPOSE: We reviewed the therapeutic results of various Duct-Occlud coils(pfm AG, Koln, Germany) to evaluate the efficacy of the most-recently modified Duct-Occlud coil(Nit-Occlud) in the transcatheter closure of patent ductus arteriosus(PDA), including large defects more than 4 mm in diameter. METHODS: Two hundred and five patients who underwent percutaneous PDA occlusion using Duct- Occlud devices from March 1996 to December 2003 were enrolled and four types of Duct-Occlud [Standard(S), Reinforced(R), Reinforced reverse cone(RR) and Nit-Occlud(N)] were used in this study. The patients were followed up by echocardiogram and physical examination before discharge, one month, six months and 12 months after the procedure. RESULTS: The rate of residual shunt according to the type of Duct-Occlud were as follows: S-54%, R-72%, RR-50%, N-14%(P<0.05 compared with other devices) at one month, S-25%, R-44%, RR- 37%, N-0%(P<0.05 compared with other devices) at six months, S-8%, R-8%, RR-4%, N-0%(P< 0.05 compared with S and R) at 12 months and later. Nit-Occlud coil showed the complete occlusion of PDA after six months of follow-up, even in 12 patients with relatively large PDA(>4 mm). CONCLUSION: The transcatheter closure of PDA using Duct-Occlud was an effective treatment and our study revealed that a Nit-Occlud coil which showed higher rate of occlusion even in PDA with large diameters over than 4 mm, was a more effective modality compared to previous devices.