The retrospective analysis of extrinsic vessel induced ureteropelvic junction obstruction
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3760/cma.j.issn.1000-6702.2017.10.012
   		
        
        	
        		- VernacularTitle:儿童迷走血管压迫致肾盂输尿管连接处梗阻的诊治分析
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Wenwen HAN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Hongcheng SONG
			        		
			        		;
		        		
		        		
		        		
			        		Weiping ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Ning SUN
			        		
			        		;
		        		
		        		
		        		
			        		Chengru HUANG
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. 100045,首都医科大学附属北京儿童医院泌尿外科
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Extrinsic vessel;
			        		
			        		
			        		
				        		Ureteropelvic junction obstruction(UPJO);
			        		
			        		
			        		
				        		Pyeloureteroplasty
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of Urology
	            		
	            		 2017;38(10):770-773
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective To investigate the characteristic of extrinsic vessel ureteropelvic junction obstruction (UPJO).Methods From January 2006 to September 2016,37 cases of extrinsic vessel UPJO were retrospective studied.The patients'mean age at surgery was 8.4 years old (range 3-14 years),with 33 boys and 4 girls (left UPJO 27 cases,right 10 cases).There were 3 cases found hydronephrosis during pregnancy and 29 had recurrent abdominal pain.Mean antemposterior diameter of pelvis was (3.1 ±1.2) cm,and renal parenchyma thickness was (0.6-± 0.4) cm.The preoperative ultrasound did not detcet extrinsic vessel,while intravenous pyelography (IVP) showed significant dilation of calyx in extrinsic vessel UPJO.Results All the patients were performed with pyeloureteroplasty,the ureter lumens were found stenosis in 13 cases by pathology,while the remaining cases were not.Mean follow-up time from last operation was 9.3 months (6 to 24 months).Only 1 patient had postoperative complication,which was urinary tract infection and cured by antibiotic therapy.No one need second operation.Three to 6 months after operation,the anteroposterior diameter of pelvis was (1.5-± 1.4) cm which was significantly lower than preoperative (P < 0.05),and renal parenchyma thickness was (0.7 ± 0.33) cm,which was not significantly different with preoperative (P > 0.05).IVP showed the patency of the anastomosis and good function of kidney.Conclusions The preoperative diagnosis of extrinsic vessel UPJO was difficult,the diagnostic rate of extrinsic vessel UPJO could be improved if we found the characteristics of abdominal pain history,ultrasound and IVP.Extrinsic vessel UPJO might be accompanied by the lumens stenosis,so pyeloureteroplasty was recommended.