Physicochemical analysis of ceftriaxone-associated urinary stone
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3760/cma.j.issn.1000-6702.2012.08.003
   		
        
        	
        		- VernacularTitle:头孢曲松泌尿系结石的理化分析
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Xiaoming CONG
			        		
			        		;
		        		
		        		
		        		
			        		Xizhao SUN
			        		
			        		;
		        		
		        		
		        		
			        		Benxiang NING
			        		
			        		;
		        		
		        		
		        		
			        		Luming SHEN
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Ceftriaxone;
			        		
			        		
			        		
				        		Urinary calculi;
			        		
			        		
			        		
				        		Radiolucent calculi;
			        		
			        		
			        		
				        		Calcium ceftriaxone;
			        		
			        		
			        		
				        		Component analysis
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of Urology
	            		
	            		 2012;33(8):567-569
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective To investigate the physicochemical characteristics of urinary stone induced by ceftriaxone.Methods Two children cefriaxone-associated urinary stone samples were received for component analysis in our hospital in April 2012,of which one was from a boy whose clinical data was not available,and the other was from a boy who suffered acute lower abdominal pain and vomiting after treatment with ceftriaxone for 5 d in early April.Ultrasound demonstrated a stone in his right upper ureter.Computed tomography showed right upper ureteral stone,which was radiolucent on plain abdominal radiograph.After a conservative treatment for 3 d,the stone in right upper ureter was spontaneously passed,which was confirmed by the ultrasound and intravenous pyelography.The two received stone samples were analyzed by infrared spectroscopy,scanning electron microscopy and energy disperse spectroscopy for component analysis.Results The compositions of two stone samples were free ceftriaxone and calcium ions combined with a molar ratio of 1:1.Conclusions The ceftriaxone could induce urinary stone in children.This special stone has radiolueent imaging,and it is composed of calcium ceftriaxone salt.