Clinical analysis of 117 cases with synchronous multiple primary esophageal squamous cell carcinomas
	    		
		   		
		   			 
		   		
	    	
    	- Author:
	        		
		        		
		        		
			        		Zhiqin CHEN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Sihan LI
			        		
			        		;
		        		
		        		
		        		
			        		Zheng HE
			        		
			        		;
		        		
		        		
		        		
			        		Guang LI
			        		
			        		
		        		
		        		
		        		
  Author Information Author Information
 
- Publication Type:2
- From:The Korean Journal of Internal Medicine 2021;36(6):1356-1364
- CountryRepublic of Korea
- Language:English
- 
		        	Abstract:
			       	
			       		
				        
				        	 Background/Aims:We aimed to study the clinical characteristics, treatment modality, and the prognosis of synchronous multiple primary esophageal squamous cell carcinomas (SMPESCC). 
				        	
 Methods:A total of 117 SMPESCC cases were evaluated retrospectively from 2010 to 2015.
 Results:The most common locations of SMPESCC were mid- and lower thoracic segments (n = 208, 84.9%). The 1-, 2-, and 3-year overall survival rates were 53.8%, 30.8%, and 15.4%, respectively; the median survival time (MST) was 12.5 months. With definitive radiotherapy and surgery, respectively, the MST of stage I/II patients were 34.2 and 26.7 months, of stage III patients were 8.3 and 13.2 months (p = 0.163), and of stage IV patients were and 8 and 12.6 months (p = 0.379). Clinical stage, family history of cancer, and Karnofsky performance status were independent prognostic factors for the whole cohort by Cox multivariate regression analysis (hazard ratio [HR] = 0.859, p < 0.001; HR = 0.579, p = 0.032; and HR = 0.586, p = 0.013).
 Conclusions:Although the prognosis of SMPESCC is poor, stage I/II patients can achieve long-term survival with aggressive treatment, especially those with a Karnofsky performance score 90 or higher and who have no family history of cancer. Definitive radiotherapy could achieve a similar survival rate to definitive surgery at different clinical stages.
 
            