Relationship Between Thyroid Hormone and Atrial Fibrillation Prevalence in Patients With Chronic Heart Failure
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3969/j.issn.1000-3614.2015.08.008
   		
        
        	
        		- VernacularTitle:探讨甲状腺激素与慢性心力衰竭患者心房颤动发生率的相关性
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Chen LIU
			        		
			        		;
		        		
		        		
		        		
			        		Xiaochen YUAN
			        		
			        		;
		        		
		        		
		        		
			        		Zhengang ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Qiuping LUO
			        		
			        		;
		        		
		        		
		        		
			        		Junfeng YAN
			        		
			        		;
		        		
		        		
		        		
			        		Kaizheng GONG
			        		
			        		;
		        		
		        		
		        		
			        		Jianhua QIN
			        		
			        		;
		        		
		        		
		        		
			        		Guijian ZHOU
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Thyroid hormone;
			        		
			        		
			        		
				        		Chronic heart failure;
			        		
			        		
			        		
				        		Atrial ifbrillation
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Circulation Journal
	            		
	            		 2015;(8):749-752
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective: To investigate the impact of thyroid hormone on atrial ifbrillation (AF) prevalence in patients with chronic heart failure (CHF). 
 Methods: A total of 322 non-valvular heart disease CHF patients treated in our hospital from 2011-0-01 to 2012-10-01 were retrospectively studied. Based on previous history and the ECG at admission, the patients were divided into 2 groups: AF group,n=187 and Sinus rhythm group,n=135. The proifle of serum levels of free thyroxine (FT4), free triiodothyronine (FT3), hyroid stimulating hormone (TSH) and LDL-C were examined within 24 hours of admission; 12 lead ECG and echocardiography were conducted to analyze the related factor for AF occurrence. 
 Results: Compared with Sinus rhythm group, AF group had increased FT4 level as 14.52 (12.74, 15.85) pmol/L vs 13.11 (11.68, 14.85) pmol/L,P<0.001, while FT3 level was similar between 2 groups as 4.06 (3.76, 4.44) pmol/L vs 4.1(3.80, 4.52) pmol/L,P=0.250. Spearman related analysis indicated that FT4 level was positively related to left atrial dimension (LAD) (r=0.134,P=0.016), FT3 level was positively related to LDL-C (r=0.235,P<0.001) and negatively related to age (r=-0.268, P<0.001). Taking FT4 as the continuous variable, Logistic regression analysis indicated that FT4 level [OR=1.227, 95% CI (1.112-1.354),P<0.001], LAD [OR=1.154, 95% CI (1.105-1.205),P<0.001], age [OR=1.038, 95% CI (1.012-1.064),P=0.003], CHF duration [OR=1.111, 95% CI (1.021-1.209),P=0.015], LDL-C level [OR=0.689, 95% CI (0.493-0.963),P=0.029] were related to AF prevalence in CHF patients. 
 Conclusion: High serum level of FT4 may increase the risk AF occurrence in CHF patients.