Analysis for the Occurrence Rate of Permanent Pacemaker Implantation With Relevant Risk Factors in Patients After Mechanical Heart Valve Replacement
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3969/j.issn.1000-3614.2016.06.011
   		
        
        	
        		- VernacularTitle:机械瓣置换术后永久性起搏器植入情况及危险因素分析
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Jinping ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Yong JIANG
			        		
			        		;
		        		
		        		
		        		
			        		Weichun WU
			        		
			        		;
		        		
		        		
		        		
			        		Jingjin WANG
			        		
			        		;
		        		
		        		
		        		
			        		Li ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Minghui ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Hao WANG
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Heart valvular disease;
			        		
			        		
			        		
				        		Heart valve prosthesis;
			        		
			        		
			        		
				        		Pacemaker artiifcial;
			        		
			        		
			        		
				        		Atrial ifbrillation
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Circulation Journal
	            		
	            		 2016;31(6):569-572
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective: To explore the occurrence rate of permanent pacemaker implantation (PPI) with relevant risk factors in patients after mechanical aortic valve replacement. Methods: A total of 1986 consecutive patients with mechanical aortic valve replacement were enrolled in this study. According to PPI conduction caused by severe arrhythmia , the patients were divided into 2 groups: PPI group,n=61 including 27 male with the average age of (53.6 ± 9.03) years and Non-PPI group,n=1925. The median follow-up time was (4.47 ± 4.36) years after valve replacement. Results: The patients in PPI group were with the elder age and higher ratio of pre-existing atrial ifbrillation (AF) than those in Non-PPI group,P<0.05. The overall PPI occurrence rate was 3.07% after valve replacement and the short term incidence rate (within 30 days) was 0.55%, midterm (from 30 day to 1 year) was 0.03%, long term (>1 year) was 2.22%. For PPI indications, there were 70.5% patients with high degree A-V block including 30 of AF combining long intervals, 12 of high degree A-V block, 1 of complete left bundle branch block (LBBB) and 14.8% patients with sick sinus syndrome/sinus arrest/ sinus bradycardia. Conclusion: PPI incidence was at a relative low level, the long term occurrence rate was higher than both short term and midterm; elder age, pre-existing AF could be the high risk factors for PPI requirement, and the major PPI indication was high degree AV block in clinical practice.