Usefulness of BUN/Albumin Ratio in Prediction of 28-day Mortality in Patients with Acute Cholangitis.
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Hyun Sol KANG
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Sung Phil CHUNG
			        		
			        		;
		        		
		        		
		        		
			        		Je Sung YOU
			        		
			        		;
		        		
		        		
		        		
			        		Young Seon JOO
			        		
			        		;
		        		
		        		
		        		
			        		Tae Young KONG
			        		
			        		;
		        		
		        		
		        		
			        		Dong Ryul KO
			        		
			        		;
		        		
		        		
		        		
			        		Jung Hwa HONG
			        		
			        		;
		        		
		        		
		        		
			        		Yoo Seok PARK
			        		
			        		;
		        		
		        		
		        		
			        		Hyun Soo CHUNG
			        		
			        		;
		        		
		        		
		        		
			        		Incheol PARK
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. youjsmd@yuhs.ac
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Cholangitis;
			        		
			        		
			        		
				        		Blood urea nitrogen;
			        		
			        		
			        		
				        		Albumins;
			        		
			        		
			        		
				        		Prognosis
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Adult;
				        		
			        		
				        		
					        		Albumins;
				        		
			        		
				        		
					        		Blood Urea Nitrogen;
				        		
			        		
				        		
					        		Cholangitis*;
				        		
			        		
				        		
					        		Critical Illness;
				        		
			        		
				        		
					        		Emergency Service, Hospital;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Medical Records;
				        		
			        		
				        		
					        		Mortality*;
				        		
			        		
				        		
					        		Prognosis;
				        		
			        		
				        		
					        		Proportional Hazards Models;
				        		
			        		
				        		
					        		Retrospective Studies;
				        		
			        		
				        		
					        		Risk Factors
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Journal of the Korean Society of Emergency Medicine
	            		
	            		 2015;26(6):491-499
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	PURPOSE: We evaluated the blood urea nitrogen (BUN)/albumin (B/A) ratio in patients with acute cholangitis to determine the prognostic significance of the B/A ratio as a marker of early mortality in critically ill patients with acute cholangitis. METHODS: We retrospectively analyzed medical records in two emergency departments (ED) and screened eligible adult patients who were admitted to the ED with acute cholangitis. The B/A ratio was evaluated as the BUN value divided by albumin level on each hospital day. The clinical outcome was mortality after 28 days. RESULTS: A total of 461 patients with acute cholangitis were included in this study. Multivariate Cox proportional hazard models showed that higher B/A ratio on ED admission (day 1) (Hazard Ratio (HR): 1.182; 95% Confidence Interval (CI): 1.076-1.298, p<0.001) and day 4 (HR: 1.192; 95% CI: 1.019-1.395, p=0.028) were independent risk factors for mortality at 28 days. Our study showed that the increased 28-day mortality was associated with a B/A ratio >6.83 on day 1 (HR: 4.065; 95% CI: 4.123-43.737, p<0.001) and a higher B/A ratio (>6.26) on day 4 (HR: 7.16; 95% CI: 1.412-36.333, p=0.018) in patients with acute cholangitis. Conclusion: The ratio of BUN to albumin on ED admission is a promising prognostic marker of 28-day mortality in patients with acute cholangitis. CONCLUSION: The ratio of BUN to albumin on ED admission is a promising prognostic marker of 28-day mortality in patients with acute cholangitis.