Impact of Previous Angina on Clinical Outcomes in ST-Elevation Myocardial Infarction Underwent Percutaneous Coronary Intervention
	    		
		   		
		   			
		   		
	    	
    	 
    	10.4068/cmj.2020.56.2.136
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Xiongyi HAN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Myung Ho JEONG
			        		
			        		;
		        		
		        		
		        		
			        		Jumin WON
			        		
			        		;
		        		
		        		
		        		
			        		Yongcheol KIM
			        		
			        		;
		        		
		        		
		        		
			        		Min Chul KIM
			        		
			        		;
		        		
		        		
		        		
			        		Doo Sun SIM
			        		
			        		;
		        		
		        		
		        		
			        		Young Joon HONG
			        		
			        		;
		        		
		        		
		        		
			        		Ju Han KIM
			        		
			        		;
		        		
		        		
		        		
			        		Youngkeun AHN
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. The Heart Center and Cardiovascular Convergence Research Center of Chonnam National University Hospital, Gwangju, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
            
            
            	- From:Chonnam Medical Journal
	            		
	            		 2020;56(2):136-143
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	 The present study sought to assess the impact of previous angina symptoms on real world clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) who had undergone successful percutaneous coronary interventions using drug-eluting stents (DES). Patients were selected from 13,650 consecutive patients enrolled in the Korea Acute Myocardial Infarction-National Institute of Health (KAMIR-NIH) registry. A total of 5167 STEMI patients were divided into a previous-angina group (n= 1129) and a control group (n=4038). Major adverse cardiac and cerebrovascular events (MACCEs) that included all-cause death, recurrent myocardial infarction (re-MI), repeat PCI, coronary artery bypass graft (CABG), cerebrovascular accident (CVA). Among the 5167 patients with STEMI, MACCEs had occurred in 168 patients in the previousangina group (14.9%) and 726 patients in the control group (18.0%) (HR, 0.76, 95% CI, 0.60-0.96, p=0.019) at the two-year (800-day) for clinical outcomes. Previous angina was associated with better clinical outcomes with respect to all-cause death (HR, 0.65, 95% CI, 0.44-0.96, p=0.029) and cardiac death (HR, 0.52, 95% CI, 0.31-0.84, p=0.008). Previous angina was a negative risk factor for adverse cardiac events. A previous history of angina predisposes a patient to a favorable outcome after acute myocardial infarction (AMI) in patients with DES implantation.