Surgical Options for Ipsilateral Breast Tumor Recurrence: Mastectomy Versus Repeat Breast-Conserving Surgery
	    		
		   		
		   			
		   		
	    	
    	 
    	10.14449/jbd.2022.10.1.53
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Hyunsu YEOH
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Jong-Ho CHEUN
			        		
			        		;
		        		
		        		
		        		
			        		Han-Byoel LEE
			        		
			        		;
		        		
		        		
		        		
			        		Wonshik HAN
			        		
			        		;
		        		
		        		
		        		
			        		Hong-Kyu KIM
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:1
 
        	
        	
            
            
            	- From:
	            		
	            			Journal of Breast Disease
	            		
	            		 2022;10(1):53-59
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	 Purpose:The standard care for patients with ipsilateral breast tumor recurrence (IBTR) after breast-conserving surgery (BCS) is a total mastectomy (TM); however, there is growing interest in repeating BCS for IBTR. 
				        	
				        
				        	Methods:We retrospectively analyzed patients with IBTR who underwent initial BCS for breast cancer at our institution between January 2000 and December 2018. The Kaplan-Meier method was used to compare survival rates between the standard BCS-TM treatment group and the repeat-BCS group. 
				        	
				        
				        	Results:We enrolled 209 IBTR patients with a median follow-up of 102.3 months. No significant differences were observed in overall survival (10 years: 87.3% vs. 78.8%; hazard ratio [HR], 1.11; 95% confidence interval [CI], 0.44-2.81; p=0.821), distant metastasis free survival (10 years: 73.9% vs. 77.7%; HR, 0.80; 95% CI, 0.37-1.72; p=0.727) and disease-free survival (10 years: 57.1% vs. 65.2%; HR, 0.63; 95% CI, 0.35-1.12; p=0.115) between two groups. Repeat-BCS group showed significantly poorer locoregional recurrence free survival rate than did the TM group (HR, 2.44; 95% CI, 1.06-5.56; p=0.029) but the significance was not shown after excluding ipsilateral breast tumor recurrence events. 
				        	
				        
				        	Conclusion:No significant differences were observed in survival outcomes and recurrence rates between patients with IBTR who underwent mastectomy or repeat BCS regardless of molecular subtype, except secondary IBTR rates.