Survival implication of lymphadenectomy in patients surgically treated for apparent early-stage uterine serous carcinoma
	    		
		   		
		   			
		   		
	    	
    	- Author:
	        		
		        		
		        		
			        		Jvan CASARIN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
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			        		Giorgio BOGANI
			        		
			        		;
		        		
		        		
		        		
			        		Elisa PIOVANO
			        		
			        		;
		        		
		        		
		        		
			        		Francesca FALCONE
			        		
			        		;
		        		
		        		
		        		
			        		Federico FERRARI
			        		
			        		;
		        		
		        		
		        		
			        		Franco ODICINO
			        		
			        		;
		        		
		        		
		        		
			        		Andrea PUPPO
			        		
			        		;
		        		
		        		
		        		
			        		Ferdinando BONFIGLIO
			        		
			        		;
		        		
		        		
		        		
			        		Nicoletta DONADELLO
			        		
			        		;
		        		
		        		
		        		
			        		Ciro PINELLI
			        		
			        		;
		        		
		        		
		        		
			        		Antonio Simone LAGANÀ
			        		
			        		;
		        		
		        		
		        		
			        		Antonino DITTO
			        		
			        		;
		        		
		        		
		        		
			        		Mario MALZONI
			        		
			        		;
		        		
		        		
		        		
			        		Stefano GREGGI
			        		
			        		;
		        		
		        		
		        		
			        		Francesco RASPAGLIESI
			        		
			        		;
		        		
		        		
		        		
			        		Fabio GHEZZI
			        		
			        		
		        		
		        		
		        		
			        		
			        		Author Information
			        		
 - Publication Type:Original Article
 - From:Journal of Gynecologic Oncology 2020;31(5):e64-
 - CountryRepublic of Korea
 - Language:English
 - 
		        	Abstract:
			       	
			       		
				        
				        	 Objective:Uterine serous carcinoma (USC) is a rare highly aggressive disease. In the present study, we aimed to investigate the survival implication of the systematic lymphadenectomy in patients who underwent surgery for apparent early-stage USC. 
				        	
Methods:Consecutive patients with apparent early-stage USC surgically treated at six Italian referral cancer centers were analyzed. A comparison was made between patients who underwent retroperitoneal staging including at least pelvic lymphadenectomy “LND” vs.those who underwent hysterectomy alone “NO-LND”. Baseline, surgical and oncological outcomes were analyzed. Kaplan- Meier curves were calculated for disease-free survival (DFS) and disease-specific survival (DSS). Associations were evaluated with Cox proportional hazard regression and summarized using hazard ratio (HR).
Results:One hundred forty patients were analyzed, 106 LND and 34 NO-LND. NO-LND group (compared to LND group) included older patients (median age, 73 vs.67 years) and with higher comorbidities (median Charlson Comorbidity Index, 6 vs. 5) (p<0.001). No differences in terms of recurrence rate (LND vs. NO-LND, 33.1% vs. 41.4%; p=0.240) were observed. At Cox regression analysis lymphadenectomy did not significantly influence DFS (HR=0.59; 95% confidence interval [CI]=0.32–1.08; p=0.09), and DSS (HR=0.14; 95% CI=0.02–1.21; multivariable analysis p=0.07). Positive node was independently associated with worse DFS (HR=6.22; 95% CI=3.08–12.60; p<0.001) and DSS (HR=5.51; 95% CI=2.31– 13.10; p<0.001), while adjuvant chemotherapy was associated with improved DFS (HR=0.38;95% CI=0.17–0.86; p=0.02) and age was independently associated with worse DSS (HR=1.07;95% CI=1.02–1.13; p<0.001).
Conclusions:Although lymphadenectomy did not show survival benefits in patients who underwent surgery for apparent early-stage USC, the presence of lymph node metastasis was the main adverse prognostic factors, supporting the prognostic role of the retroperitoneal staging also in this histological subtype. 
            